MolluscaBase taxon details

Helicinae Rafinesque, 1815

934235  (urn:lsid:marinespecies.org:taxname:934235)

accepted
Subfamily
Tribe Allognathini Westerlund, 1903
  » Genus Allognathus Pilsbry, 1888
    » Species Allognathus balearicus (Rossmässler, 1838)
    » Species Allognathus campanyonii (Rossmässler, 1839)
    » Species Allognathus graellsianus (L. Pfeiffer, 1848)
    » Species Allognathus ogdeni (Kennard & Woodward, 1914) † (taxon inquirendum)
    » Subgenus Allognathus (Allognathus) Pilsbry, 1888 represented as Allognathus Pilsbry, 1888
    » Subgenus Allognathus (Iberellus) P. Hesse, 1908 represented as Allognathus Pilsbry, 1888
      » Species Allognathus (Iberellus) balearicus (Rossmässler, 1838) represented as Allognathus balearicus (Rossmässler, 1838)
      » Species Allognathus (Iberellus) campanyonii (Rossmässler, 1839) represented as Allognathus campanyonii (Rossmässler, 1839)
      » Species Allognathus (Iberellus) ogdeni (Kennard & Woodward, 1914) † represented as Allognathus ogdeni (Kennard & Woodward, 1914) †
      » Species Allognathus (Iberellus) hispanicus (Rossmässler, 1838) accepted as Allognathus balearicus (Rossmässler, 1838) (preoccupied name; non Helix lactea var. Hispanica Potiez & Michaud, 1835)
  » Genus Cepaea Held, 1838
    » Species Cepaea bulla Lueger, 1981 †
    » Species Cepaea etelkae (Halaváts, 1923) †
    » Species Cepaea hortensis (O. F. Müller, 1774)
    » Species Cepaea krejcii Wenz in Krejci & Wenz, 1930 †
    » Species Cepaea nemoralis (Linnaeus, 1758)
    » Species Cepaea beyrichi (Deshayes, 1863) † (taxon inquirendum)
    » Species Cepaea eckingensis (F. Sandberger, 1875) † (taxon inquirendum)
    » Species Cepaea facilis (F. Sandberger, 1875) † (taxon inquirendum)
    » Species Cepaea gaymardii (Matheron, 1842) † (taxon inquirendum)
    » Species Cepaea lausanni (Dumont & Mortillet, 1852) † (taxon inquirendum)
    » Species Cepaea noueli (Deshayes, 1863) † (taxon inquirendum)
    » Species Cepaea nouleti (Matheron in Heer, 1861) † (taxon inquirendum)
    » Species Cepaea placentina (De Stefani, 1880) † (taxon inquirendum)
    » Species Cepaea reboulii (Leufroy, 1828) † (taxon inquirendum)
    » Species Cepaea subtrochoides (A. d'Orbigny, 1852) † (taxon inquirendum)
    » Subgenus Cepaea (Palaeotachea) Jooss, 1912 † accepted as Palaeotachea Jooss, 1912 †
    » Species Cepaea alloiodes (Thomä, 1845) † accepted as Palaeotachea alloiodes (Thomä, 1845) †
    » Species Cepaea arvernensis (Deshayes, 1863) † accepted as Helix arvernensis Deshayes, 1863 † (new combination not accepted; status uncertain)
    » Species Cepaea bohemica (O. Boettger, 1870) † accepted as Megalotachea macrocheila (Reuss in Reuss & Meyer, 1849) † (junior synonym)
    » Species Cepaea christoli (Matheron, 1842) † accepted as Megalotachea christolii (Matheron, 1842) † (incorrect subsequent spelling; new combination)
    » Species Cepaea delphinensis (Fontannes, 1876) † accepted as Megalotachea delphinensis (Fontannes, 1876) †
    » Species Cepaea dentula (Quenstedt, 1867) † accepted as Palaeotachea dentula (Quenstedt, 1867) †
    » Species Cepaea ducrosti (Locard, 1883) † accepted as Frechenia ducrosti (Locard, 1883) †
    » Species Cepaea eversa (Deshayes in Férussac & Deshayes, 1851) † accepted as Palaeotachea turonensis (Deshayes, 1832) † (junior synonym)
    » Species Cepaea gottschicki Wenz, 1919 † accepted as Palaeotachea sylvestrina (Schlotheim, 1820) † (junior synonym)
    » Species Cepaea grammorhaphe (O. Boettger, 1884) † accepted as Megalotachea kinkelini (O. Boettger, 1884) † (synonym)
    » Species Cepaea hortulana (Thomä, 1845) † accepted as Palaeotachea hortulana (Thomä, 1845) †
    » Species Cepaea kinkelini (O. Boettger, 1884) † accepted as Megalotachea kinkelini (O. Boettger, 1884) †
    » Species Cepaea magnini (Locard, 1883) † accepted as Megalotachea delphinensis (Fontannes, 1876) † (junior synonym)
    » Species Cepaea maguntiana (Deshayes, 1832) † accepted as Megalotachea maguntina (Deshayes, 1832) † (incorrect subsequent spelling; new combination)
    » Species Cepaea micheliniana (Matheron, 1842) † accepted as Helix micheliniana Matheron, 1842 † (new combination not accepted; status uncertain)
    » Species Cepaea moroguesi (Brongniart, 1810) † accepted as Palaeotachea moroguesi (Brongniart, 1810) †
    » Species Cepaea neumayri (Brusina, 1878) † accepted as Megalotachea neumayri (Brusina, 1878) †
    » Species Cepaea obtusecarinata (F. Sandberger, 1858) † accepted as Creneatachea obtusecarinata (Sandberger, 1858) †
    » Species Cepaea reinensis (Gobanz, 1854) † accepted as Megalotachea reinensis (Gobanz, 1854) †
    » Species Cepaea renevieri (Maillard, 1892) † accepted as Palaeotachea renevieri (Maillard, 1892) † (new combination)
      » Variety Cepaea renevieri var. elevata Berz & Jooss, 1927 † accepted as Megalotachea elevata (Berz & Jooss, 1927) † (new combination; considered a distinct species)
    » Species Cepaea rugulosa (Zieten, 1832) † accepted as Palaeotachea subsulcosa (Thomä, 1845) † (junior homonym of Helix rugulosa Risso, 1826; synonym)
      » Subspecies Cepaea rugulosa eurabdota (Fontannes, 1884) † accepted as Helix eurabdota Fontannes, 1884 † (new combination not accepted; status uncertain)
    » Species Cepaea silvana (Klein, 1853) † accepted as Palaeotachea silvana (Klein, 1853) †
    » Species Cepaea subglobosa (Grateloup, 1828) † accepted as Palaeotachea subglobosa (Grateloup, 1828) †
    » Species Cepaea subsulcosa (Thomä, 1845) † accepted as Palaeotachea subsulcosa (Thomä, 1845) †
    » Species Cepaea sylvestrina (Schlotheim, 1820) † accepted as Megalotachea sylvestrina (Schlotheim, 1820) † (new combination)
  » Genus Hemicycla Swainson, 1840
    » Species Hemicycla berkeleii (R. T. Lowe, 1861)
    » Species Hemicycla bethencourtiana (Shuttleworth, 1852)
    » Species Hemicycla bidentalis (Lamarck, 1822)
    » Species Hemicycla consobrina (A. Férussac, 1822)
    » Species Hemicycla diegoi Neiber, R. Vega-Luz, R. Vega-Luz & Koenemann, 2011
    » Species Hemicycla distensa (Mousson, 1872)
    » Species Hemicycla efferata (Mousson, 1872)
    » Species Hemicycla ethelema (J. Mabille, 1882)
    » Species Hemicycla eurythyra O. Boettger, 1908
    » Species Hemicycla flavistoma Ibáñez & Alonso, 1991
    » Species Hemicycla fritschi (Mousson, 1872)
    » Species Hemicycla fuenterroquensis Castro, Yanes, Alonso & Ibáñez, 2012
    » Species Hemicycla fulgida Alonso & Ibáñez, 2007
    » Species Hemicycla gaudryi (d'Orbigny, 1839)
    » Species Hemicycla glasiana (Shuttleworth, 1852)
    » Species Hemicycla glyceia silensis Cavero, 1988
    » Species Hemicycla gomerensis (Morelet, 1864)
    » Species Hemicycla granomalleata (Wollaston, 1878)
    » Species Hemicycla guamartemes (Grasset, 1857)
    » Species Hemicycla hedybia (J. Mabille, 1882)
    » Species Hemicycla incisogranulata (Mousson, 1872)
    » Species Hemicycla inutilis (Mousson, 1872)
    » Species Hemicycla invernicata (Mousson, 1872)
    » Species Hemicycla laurijona Alonso & Ibáñez, 2007
    » Species Hemicycla mascaensis Alonso & Ibáñez, 1988
    » Species Hemicycla maugeana (Shuttleworth, 1852)
    » Species Hemicycla melchori R. Vega-Luz & R. Vega-Luz, 2008
    » Species Hemicycla modesta (A. Férussac, 1822)
    » Species Hemicycla paeteliana (L. Pfeiffer, 1859)
    » Species Hemicycla paivanopsis (J. Mabille, 1882)
    » Species Hemicycla perraudierei (Grasset, 1857)
    » Species Hemicycla planorbella (Lamarck, 1816)
    » Species Hemicycla plicaria (Lamarck, 1816)
    » Species Hemicycla pouchadan Ibáñez & Alonso, 2007
    » Species Hemicycla pouchet (A. Férussac, 1821)
    » Species Hemicycla psathyra (R. T. Lowe, 1861)
    » Species Hemicycla quadricincta (Morelet, 1864)
    » Species Hemicycla saponacea (R. T. Lowe, 1861)
    » Species Hemicycla sarcostoma (Webb & Berthelot, 1833)
    » Species Hemicycla saulcyi (d'Orbigny, 1839)
    » Species Hemicycla vermiplicata (Wollaston, 1878)
    » Subgenus Hemicycla (Adiverticula) Alonso & Ibáñez, 1988 represented as Hemicycla Swainson, 1840
    » Subgenus Hemicycla (Hemicycla) Swainson, 1840 represented as Hemicycla Swainson, 1840
      » Species Hemicycla (Hemicycla) berkeleii (R. T. Lowe, 1861) represented as Hemicycla berkeleii (R. T. Lowe, 1861)
      » Species Hemicycla (Hemicycla) bethencourtiana (Shuttleworth, 1852) represented as Hemicycla bethencourtiana (Shuttleworth, 1852)
      » Species Hemicycla (Hemicycla) bidentalis (Lamarck, 1822) represented as Hemicycla bidentalis (Lamarck, 1822)
      » Species Hemicycla (Hemicycla) consobrina (A. Férussac, 1822) represented as Hemicycla consobrina (A. Férussac, 1822)
      » Species Hemicycla (Hemicycla) ethelema (J. Mabille, 1882) represented as Hemicycla ethelema (J. Mabille, 1882)
      » Species Hemicycla (Hemicycla) eurythyra O. Boettger, 1908 represented as Hemicycla eurythyra O. Boettger, 1908
      » Species Hemicycla (Hemicycla) flavistoma Ibáñez & Alonso, 1991 represented as Hemicycla flavistoma Ibáñez & Alonso, 1991
      » Species Hemicycla (Hemicycla) fuenterroquensis Castro, Yanes, Alonso & Ibáñez, 2012 represented as Hemicycla fuenterroquensis Castro, Yanes, Alonso & Ibáñez, 2012
      » Species Hemicycla (Hemicycla) fulgida Alonso & Ibáñez, 2007 represented as Hemicycla fulgida Alonso & Ibáñez, 2007
      » Species Hemicycla (Hemicycla) glasiana (Shuttleworth, 1852) represented as Hemicycla glasiana (Shuttleworth, 1852)
      » Species Hemicycla (Hemicycla) glyceia silensis Cavero, 1988 represented as Hemicycla glyceia silensis Cavero, 1988
      » Species Hemicycla (Hemicycla) granomalleata (Wollaston, 1878) represented as Hemicycla granomalleata (Wollaston, 1878)
      » Species Hemicycla (Hemicycla) incisogranulata (Mousson, 1872) represented as Hemicycla incisogranulata (Mousson, 1872)
      » Species Hemicycla (Hemicycla) inutilis (Mousson, 1872) represented as Hemicycla inutilis (Mousson, 1872)
      » Species Hemicycla (Hemicycla) invernicata (Mousson, 1872) represented as Hemicycla invernicata (Mousson, 1872)
      » Species Hemicycla (Hemicycla) laurijona Alonso & Ibáñez, 2007 represented as Hemicycla laurijona Alonso & Ibáñez, 2007
      » Species Hemicycla (Hemicycla) perraudierei (Grasset, 1857) represented as Hemicycla perraudierei (Grasset, 1857)
      » Species Hemicycla (Hemicycla) plicaria (Lamarck, 1816) represented as Hemicycla plicaria (Lamarck, 1816)
      » Species Hemicycla (Hemicycla) pouchadan Ibáñez & Alonso, 2007 represented as Hemicycla pouchadan Ibáñez & Alonso, 2007
      » Species Hemicycla (Hemicycla) quadricincta (Morelet, 1864) represented as Hemicycla quadricincta (Morelet, 1864)
      » Species Hemicycla (Hemicycla) saponacea (R. T. Lowe, 1861) represented as Hemicycla saponacea (R. T. Lowe, 1861)
      » Species Hemicycla (Hemicycla) sarcostoma (Webb & Berthelot, 1833) represented as Hemicycla sarcostoma (Webb & Berthelot, 1833)
      » Species Hemicycla (Hemicycla) saulcyi (d'Orbigny, 1839) represented as Hemicycla saulcyi (d'Orbigny, 1839)
      » Species Hemicycla (Hemicycla) vermiplicata (Wollaston, 1878) represented as Hemicycla vermiplicata (Wollaston, 1878)
    » Species Hemicycla asperula (Deshayes, 1832) † accepted as Megalotachea turonensis (Deshayes, 1832) † (synonym)
    » Species Hemicycla gualinoi (Michaud, 1855) † accepted as Megalotachea gualinoi (Michaud, 1855) †
    » Species Hemicycla nayliesi (Michaud, 1855) † accepted as Frechenia nayliesi (Michaud, 1855) †
  » Genus Iberus Montfort, 1810
    » Species Iberus alonensis (A. Férussac, 1821)
    » Species Iberus angustatus (Rossmässler, 1854)
    » Species Iberus calaensis Ahuir, 2013
    » Species Iberus campesinus (L. Pfeiffer, 1846)
    » Species Iberus carthaginiensis (Rossmässler, 1853)
    » Species Iberus delgadoi (Roman, 1907) †
    » Species Iberus gualtieranus (Linnaeus, 1758)
    » Species Iberus guiraoanus (L. Pfeiffer, 1853)
    » Species Iberus marmoratus (A. Férussac, 1821)
    » Species Iberus ortizi García San Nicolás, 1957
    » Species Iberus balatonicus Stoliczka, 1862 † (taxon inquirendum)
  » Genus Lampadia Albers, 1854
  » Genus Pseudotachea C.R. Boettger, 1909
  » Genus Balearica Kobelt, 1904 accepted as Allognathus (Iberellus) P. Hesse, 1908
  » Genus Euiberus Westerlund, 1889 accepted as Iberus Montfort, 1810
  » Genus Hystrionica Scudder, 1882 accepted as Cepaea Held, 1838
  » Genus Mitra Albers, 1850 accepted as Lampadia Albers, 1854 (invalid: junior homonym of Mitra Lamarck, 1798; Lampadia is a replacement name)
  » Genus Mycena Albers, 1850 accepted as Hemicycla Swainson, 1840 (objective junior synonym)
  » Genus Nesiberus F. Haas, 1934 accepted as Allognathus (Iberellus) P. Hesse, 1908
  » Genus Tachea W. Turton, 1831 accepted as Cepaea Held, 1838
  » Genus Transiberus Monterosato, 1894 accepted as Iberus Montfort, 1810
Genus Creneatachea Zilch, 1960 †
Genus Frechenia Schlickum & Strauch, 1971 †
Tribe Helicini Rafinesque, 1815
  » Genus Amanica H. Nordsieck, 2017
  » Genus Caucasotachea C.R. Boettger, 1909
    » Species Caucasotachea andrussovi Steklov, 1966 †
    » Species Caucasotachea atrolabiata (Krynicki, 1833)
    » Species Caucasotachea beringi Schütt, 1985 †
    » Species Caucasotachea candirensis Schütt, 1985 †
    » Species Caucasotachea kubanica Steklov, 1966 †
    » Species Caucasotachea leucoranea (Mousson, 1863)
    » Species Caucasotachea phrygomysica (Oppenheim, 1919) †
    » Species Caucasotachea vindobonensis (C. Pfeiffer, 1828)
    » Species Caucasotachea fortangensis Steklov, 1966 † (taxon inquirendum)
    » Species Caucasotachea maslovae Steklov, 1966 † (taxon inquirendum)
    » Subgenus Caucasotachea (Caucasotachea) C.R. Boettger, 1909 represented as Caucasotachea C.R. Boettger, 1909
    » Subgenus Caucasotachea (Lindholmia) P. Hesse, 1918 accepted as Lindholmia P. Hesse, 1918 (original rank)
      » Species Caucasotachea (Lindholmia) beckerplateni Schütt, 1985 † accepted as Lindholmia beckerplateni (Schütt, 1985) † (Lindholmia is considered a distinct genus)
  » Genus Codringtonia Kobelt, 1898
    » Species Codringtonia codringtonii (Gray, 1834)
    » Species Codringtonia elisabethae Subai, 2005
    » Species Codringtonia eucineta (Bourguignat, 1857)
    » Species Codringtonia gittenbergeri Subai, 2005
    » Species Codringtonia helenae Subai, 2005
    » Species Codringtonia intusplicata (L. Pfeiffer, 1851)
    » Species Codringtonia parnassia (Roth, 1855)
    » Subgenus Codringtonia (Codringtonia) Kobelt, 1898 represented as Codringtonia Kobelt, 1898
      » Species Codringtonia (Codringtonia) elisabethae Subai, 2005 represented as Codringtonia elisabethae Subai, 2005
      » Species Codringtonia (Codringtonia) eucineta (Bourguignat, 1857) represented as Codringtonia eucineta (Bourguignat, 1857)
      » Species Codringtonia (Codringtonia) gittenbergeri Subai, 2005 represented as Codringtonia gittenbergeri Subai, 2005
      » Species Codringtonia (Codringtonia) helenae Subai, 2005 represented as Codringtonia helenae Subai, 2005
      » Species Codringtonia (Codringtonia) intusplicata (L. Pfeiffer, 1851) represented as Codringtonia intusplicata (L. Pfeiffer, 1851)
      » Species Codringtonia (Codringtonia) parnassia (Roth, 1855) represented as Codringtonia parnassia (Roth, 1855)
      » Species Codringtonia (Codringtonia) codringtonii (Gray, 1834) accepted as Codringtonia codringtonii (Gray, 1834)
    » Subgenus Codringtonia (Isaurica) Kobelt, 1901 accepted as Isaurica Kobelt, 1901 (original rank)
    » Subgenus Codringtonia (Neocrassa) Subai, 2005 accepted as Neocrassa Subai, 2005 (original rank)
    » Species Codringtonia neocrassa Zilch, 1952 accepted as Neocrassa neocrassa (Zilch, 1952) (original combination)
  » Genus Helix Linnaeus, 1758
    » Species Helix albescens Rossmässler, 1839
    » Species Helix anctostoma Martens, 1874
    » Species Helix antiochiensis Kobelt, 1896
    » Species Helix asemnis Bourguignat, 1860
    » Species Helix barbeyana De Stefani in De Stefani et al., 1891 †
    » Species Helix borealis Mousson, 1859
    » Species Helix buchii (Dubois de Montpéreux, 1840)
    » Species Helix calabrica Westerlund, 1876
    » Species Helix caperata Montagu, 1803
      » Variety Helix caperata var. gigaxii L. Pfeiffer, 1847 accepted as Backeljaia gigaxii (L. Pfeiffer, 1847) (original combination)
    » Species Helix cincta O. F. Müller, 1774
    » Species Helix divionensis J. Martin, 1866 †
    » Species Helix dormitoris Kobelt, 1898
    » Species Helix engaddensis Bourguignat, 1852
    » Species Helix escherichi O. Boettger, 1898
    » Species Helix fathallae Nägele, 1901
    » Species Helix figulina Rossmässler, 1839
      » Variety Helix figulina var. albidula Bourguignat, 1853 accepted as Helix engaddensis Bourguignat, 1852 (junior synonym)
    » Species Helix gussoneana L. Pfeiffer, 1848
    » Species Helix kazouiniana Pallary, 1939
    » Species Helix krejcii Wenz in Krejci-Graf & Wenz, 1926 †
    » Species Helix ligata O. F. Müller, 1774
    » Species Helix lucorum Linnaeus, 1758
      » Variety Helix lucorum var. annosa Mascarini, 1892 accepted as Helix straminea Briganti, 1825 (junior synonym)
      » Variety Helix lucorum var. candida Mascarini, 1892 accepted as Helix straminea Briganti, 1825 (junior synonym)
    » Species Helix lutescens Rossmässler, 1837
    » Species Helix melanostoma Draparnaud, 1801
    » Species Helix mileti Kobelt, 1906
    » Species Helix mrazeci Sevastos, 1922 †
    » Species Helix nucula Mousson, 1854
    » Species Helix pachya Bourguignat, 1860
    » Species Helix pathetica Mousson, 1854
    » Species Helix pelagonesica (Rolle, 1898)
      » Subspecies Helix pelagonesica vardarica Knipper, 1939 accepted as Helix pelagonesica (Rolle, 1898) (junior synonym)
    » Species Helix philibinensis Rossmässler, 1839
    » Species Helix pomacella Mousson, 1854
    » Species Helix pomatella Kobelt, 1876
    » Species Helix pomatia Linnaeus, 1758
    » Species Helix pronuba Westerlund & Blanc, 1879
    » Species Helix salomonica Nägele, 1899
    » Species Helix schlaeflii Mousson, 1859
    » Species Helix secernenda Rossmässler, 1847
      » Variety Helix secernenda var. insignis Brancsik, 1890 accepted as Helix vladica (Kobelt, 1898) (invalid: junior homonym of H. insignis Zieten, 1830)
    » Species Helix straminea Briganti, 1825
      » Variety Helix straminea var. elongata Bourguignat, 1860 accepted as Helix straminea Briganti, 1825 (invalid: junior homonym of H. elongata Röding, 1798)
    » Species Helix sublutescens Wenz in Krejci & Wenz, 1926 †
    » Species Helix thessalica O. Boettger, 1886
    » Species Helix tourannensis Souleyet, 1852
    » Species Helix valentini Kobelt, 1891
    » Species Helix vladica (Kobelt, 1898)
    » Subgenus Helix (Patera) Albers, 1850 (taxon inquirendum, Invalid: junior homonym of Patera Lesson, 1839 [Cnidaria])
    » Species Helix adipis White, 1886 † (taxon inquirendum)
    » Species Helix alpillensis Roman, 1924 † (taxon inquirendum)
    » Species Helix appressa Say, 1818 (taxon inquirendum)
    » Species Helix aquensis Serres, 1829 † (taxon inquirendum)
    » Species Helix arvernensis Deshayes, 1863 † (taxon inquirendum)
    » Species Helix astierii A. d'Orbigny, 1850 † (taxon inquirendum)
    » Species Helix bartayresi Noulet, 1854 † (taxon inquirendum)
    » Species Helix batchianensis L. Pfeiffer, 1861 (taxon inquirendum)
    » Species Helix boskovichi Dainelli, 1901 † (taxon inquirendum)
    » Species Helix boucheporni Noulet, 1867 † (taxon inquirendum)
    » Species Helix briatextensis Noulet, 1867 † (taxon inquirendum)
    » Species Helix brusinae Dainelli, 1901 † (taxon inquirendum, status uncertain; also, junior homonym of Helix brusinae Stossich, 1876)
    » Species Helix carinata Link, 1807 (taxon inquirendum)
    » Species Helix carmeliensis L. Pfeiffer, 1861 (taxon inquirendum)
    » Species Helix chriacorum Cockerell, 1914 † (taxon inquirendum)
    » Species Helix compluviatus Cox, 1872 (taxon inquirendum)
    » Species Helix dalmatina Dainelli, 1901 † (taxon inquirendum)
    » Species Helix debauxii Noulet, 1854 † (taxon inquirendum)
    » Species Helix denainvilliersi De Boissy, 1839 † (taxon inquirendum)
    » Species Helix depsta Cox, 1870 (taxon inquirendum)
    » Species Helix dubia Deshayes, 1824 † (taxon inquirendum)
    » Species Helix duboisii Baily, 1858 † (taxon inquirendum)
    » Species Helix eumicron Deshayes, 1863 † (taxon inquirendum)
    » Species Helix evansi Meek & Hayden, 1860 † (taxon inquirendum)
    » Species Helix faradensis L. Pfeiffer, 1861 (taxon inquirendum)
    » Species Helix ferrensis Serres, 1851 † (taxon inquirendum)
    » Species Helix flammata Férussac, 1821 (taxon inquirendum)
    » Species Helix fontani Noulet, 1854 † (taxon inquirendum)
    » Species Helix forrestiana Angas, 1875 (taxon inquirendum)
    » Species Helix gassiesi Noulet, 1854 † (taxon inquirendum)
    » Species Helix guadalcanarensis Cox, 1872 (taxon inquirendum)
    » Species Helix insueta Noulet, 1867 † (taxon inquirendum)
    » Species Helix Iombersensis Noulet, 1867 † (taxon inquirendum)
    » Species Helix jasonis Mayer, 1856 † (taxon inquirendum)
    » Species Helix lespiaulti Noulet, 1854 † (taxon inquirendum)
    » Species Helix maeotica Steklov, 1966 † (taxon inquirendum)
    » Species Helix mendesi Roman, 1907 † (taxon inquirendum)
    » Species Helix micheliniana Matheron, 1842 † (taxon inquirendum)
    » Species Helix monsdraconensis Noulet, 1867 † (taxon inquirendum)
    » Species Helix nebrascensis Meek & Hayden, 1860 † (taxon inquirendum)
    » Species Helix orbiculata Férussac, 1822 (taxon inquirendum)
    » Species Helix palmarum Vinassa de Regny, 1896 † (taxon inquirendum)
    » Species Helix parvula A. Braun in Walchner, 1851 † (taxon inquirendum)
    » Species Helix perrisii Noulet, 1854 † (taxon inquirendum)
    » Species Helix personnati Noulet, 1857 † (taxon inquirendum)
    » Species Helix phrygica P. Fischer in Tchihatcheff, 1866 † (taxon inquirendum)
    » Species Helix plicatilis Deshayes, 1870 (taxon inquirendum)
    » Species Helix prunum Férussac, 1821 (taxon inquirendum)
    » Species Helix pseudoligata Sinzov, 1896 † (taxon inquirendum)
    » Species Helix riparia White, 1876 † (taxon inquirendum)
    » Species Helix rupelli Deshayes, 1870 (taxon inquirendum)
    » Species Helix semifusca Deshayes, 1832 (taxon inquirendum)
    » Species Helix semiinversa Cossmann, 1913 † (taxon inquirendum)
    » Species Helix senensis Pantanelli, 1877 † (taxon inquirendum)
    » Species Helix sivericensis Dainelli, 1901 † (taxon inquirendum)
    » Species Helix spirata Serres, 1853 † (taxon inquirendum)
    » Species Helix subechinata Deshayes, 1870 (taxon inquirendum)
    » Species Helix subgranosa Le Guillou, 1842 (taxon inquirendum)
    » Species Helix sumatrana Martens, 1864 (taxon inquirendum)
      » Variety Helix sumatrana var. moussoniana Martens, 1867 accepted as Landouria moussoniana (Martens, 1867) (original combination)
    » Species Helix torus Matheron, 1842 † (taxon inquirendum)
    » Species Helix trochiscus L. Pfeiffer, 1861 (taxon inquirendum)
    » Species Helix varnensis Toula, 1892 † (taxon inquirendum)
    » Species Helix veterna Meek & Hayden, 1861 † (taxon inquirendum)
      » Subspecies Helix veterna veternior Cockerell, 1915 † accepted as Glypterpes veternior (Cockerell, 1915) † (new combination; considered a distinct species)
    » Species Helix vetusta Meek & Hayden, 1860 † (taxon inquirendum)
    » Species Helix villosella Thomä, 1845 † (taxon inquirendum)
    » Species Helix eurabdota Fontannes, 1884 † (nomen dubium)
    » Species Helix gjalskii Brusina, 1902 † (nomen dubium)
    » Species Helix laevigata Linnaeus, 1767 accepted as Velutina laevigata (Linnaeus, 1767) (nomen dubium, original combination)
    » Species Helix minutialis Deshayes, 1851 (nomen dubium)
    » Species Helix multispirata Hombron & Jacquinot, 1852 (nomen dubium)
    » Species Helix oceanica Le Guillou, 1842 (nomen dubium)
    » Species Helix oddoi Brusina, 1902 † (nomen dubium)
    » Species Helix pilari Brusina, 1902 † (nomen dubium)
    » Species Helix rotula Hombron & Jacquinot, 1852 (nomen dubium, invalid: junior homonym of Helix rotula Lowe, 1831; no replacement name available)
    » Species Helix unispiralis Montagu, 1803 (nomen dubium)
    » Species Helix angulata Férussac, 1821 (nomen nudum)
    » Species Helix exoptata Tate, 1882 (nomen nudum)
    » Species Helix globula Krynicki, 1838 (nomen nudum)
    » Species Helix roseri F. Krauss in E. von Martens, 1860 (nomen nudum)
    » Species Helix doderleiniana Monterosato, 1869 † (temporary name)
    » Species Helix rosacea Sowerby I, 1839 (temporary name, Invalid: junior homonym of Helix rosacea O. F. Müller, 1774)
    » Subgenus Helix (Helix) Linnaeus, 1758 represented as Helix Linnaeus, 1758
      » Species Helix (Helix) albescens Rossmässler, 1839 represented as Helix albescens Rossmässler, 1839
      » Species Helix (Helix) anctostoma Martens, 1874 represented as Helix anctostoma Martens, 1874
      » Species Helix (Helix) antiochiensis Kobelt, 1896 represented as Helix antiochiensis Kobelt, 1896
      » Species Helix (Helix) asemnis Bourguignat, 1860 represented as Helix asemnis Bourguignat, 1860
      » Species Helix (Helix) borealis Mousson, 1859 represented as Helix borealis Mousson, 1859
      » Species Helix (Helix) buchii (Dubois de Montpéreux, 1840) represented as Helix buchii (Dubois de Montpéreux, 1840)
      » Species Helix (Helix) calabrica Westerlund, 1876 represented as Helix calabrica Westerlund, 1876
      » Species Helix (Helix) cincta O. F. Müller, 1774 represented as Helix cincta O. F. Müller, 1774
      » Species Helix (Helix) dormitoris Kobelt, 1898 represented as Helix dormitoris Kobelt, 1898
      » Species Helix (Helix) escherichi O. Boettger, 1898 represented as Helix escherichi O. Boettger, 1898
      » Species Helix (Helix) fathallae Nägele, 1901 represented as Helix fathallae Nägele, 1901
      » Species Helix (Helix) gussoneana L. Pfeiffer, 1848 represented as Helix gussoneana L. Pfeiffer, 1848
      » Species Helix (Helix) krejcii Wenz in Krejci & Wenz, 1926 † represented as Helix krejcii Wenz in Krejci-Graf & Wenz, 1926 †
      » Species Helix (Helix) ligata O. F. Müller, 1774 represented as Helix ligata O. F. Müller, 1774
      » Species Helix (Helix) lucorum Linnaeus, 1758 represented as Helix lucorum Linnaeus, 1758
      » Species Helix (Helix) lutescens Rossmässler, 1837 represented as Helix lutescens Rossmässler, 1837
      » Species Helix (Helix) melanostoma Draparnaud, 1801 represented as Helix melanostoma Draparnaud, 1801
      » Species Helix (Helix) mileti Kobelt, 1906 represented as Helix mileti Kobelt, 1906
      » Species Helix (Helix) pathetica Mousson, 1854 represented as Helix pathetica Mousson, 1854
      » Species Helix (Helix) pelagonesica (Rolle, 1898) represented as Helix pelagonesica (Rolle, 1898)
      » Species Helix (Helix) philibinensis Rossmässler, 1839 represented as Helix philibinensis Rossmässler, 1839
      » Species Helix (Helix) pomacella Mousson, 1854 represented as Helix pomacella Mousson, 1854
      » Species Helix (Helix) pomatella Kobelt, 1876 represented as Helix pomatella Kobelt, 1876
      » Species Helix (Helix) pomatia Linnaeus, 1758 represented as Helix pomatia Linnaeus, 1758
      » Species Helix (Helix) pronuba Westerlund & Blanc, 1879 represented as Helix pronuba Westerlund & Blanc, 1879
      » Species Helix (Helix) schlaeflii Mousson, 1859 represented as Helix schlaeflii Mousson, 1859
      » Species Helix (Helix) secernenda Rossmässler, 1837 represented as Helix secernenda Rossmässler, 1847
      » Species Helix (Helix) straminea Briganti, 1825 represented as Helix straminea Briganti, 1825
      » Species Helix (Helix) sublutescens Wenz in Krejci & Wenz, 1926 † represented as Helix sublutescens Wenz in Krejci & Wenz, 1926 †
      » Species Helix (Helix) thessalica O. Boettger, 1886 represented as Helix thessalica O. Boettger, 1886
      » Species Helix (Helix) valentini Kobelt, 1891 represented as Helix valentini Kobelt, 1891
      » Species Helix (Helix) vladica (Kobelt, 1898) represented as Helix vladica (Kobelt, 1898)
    » Subgenus Helix (Pelasga) P. Hesse, 1908 represented as Helix Linnaeus, 1758
    » Subgenus Helix (Acanthinula) H. Beck, 1847 accepted as Acanthinula H. Beck, 1847
    » Subgenus Helix (Aegista) Albers, 1850 accepted as Aegista Albers, 1850
      » Species Helix (Aegista) pannonica Lörenthey, 1906 † (taxon inquirendum)
      » Species Helix (Aegista) blakei Kobelt, 1879 accepted as Karaftohelix blakeana (Newcomb, 1865) (junior synonym)
      » Species Helix (Aegista) packhaensis Bavay & Dautzenberg, 1909 accepted as Aegista packhaensis (Bavay & Dautzenberg, 1909) (original combination)
    » Subgenus Helix (Aerope) E. von Martens, 1890 accepted as Natalina Pilsbry, 1893
    » Subgenus Helix (Aglaja) Albers, 1850 accepted as Lysinoe H. Adams & A. Adams, 1855 (Invalid: junior homonym of Aglaja Renier, 1807 [Opisthobranchia]; Lysinoe is a replacement name)
    » Subgenus Helix (Ampelita) H. Beck, 1837 accepted as Ampelita H. Beck, 1837
      » Species Helix (Ampelita) alluaudi Dautzenberg, 1895 accepted as Ampelita alluaudi (Dautzenberg, 1895) (original combination)
      » Species Helix (Ampelita) campbelliana Pilsbry in Tryon, 1890 accepted as Ampelita gaudens var. campbelliana (Pilsbry in Tryon, 1890) (original combination)
      » Species Helix (Ampelita) eurychila Crosse & P. Fischer, 1883 accepted as Ampelita sepulcralis (Férussac, 1821) (junior synonym)
      » Species Helix (Ampelita) gonostyla Ancey, 1882 accepted as Ampelita calypso (L. Pfeiffer, 1861) (junior synonym)
      » Species Helix (Ampelita) lamothei Dautzenberg, 1895 accepted as Ampelita lamothei (Dautzenberg, 1895)
      » Species Helix (Ampelita) lanciformis O. Boettger, 1889 accepted as Ampelita gaudens (Mabille, 1884) (junior synonym)
      » Species Helix (Ampelita) percyana E. A. Smith, 1880 accepted as Ampelita percyana (E. A. Smith, 1880) (original combination)
      » Species Helix (Ampelita) shavi E. A. Smith, 1879 accepted as Ampelita xystera (L. Pfeiffer, 1841) (junior synonym)
      » Species Helix (Ampelita) subatropos Dautzenberg, 1895 accepted as Ampelita subatropos (Dautzenberg, 1895) (original combination)
    » Subgenus Helix (Amphidoxa) Albers, 1850 accepted as Amphidoxa Albers, 1850 (original rank)
    » Subgenus Helix (Archelix) Albers, 1850 accepted as Otala Schumacher, 1817 (objective junior synonym)
    » Subgenus Helix (Arionta) Martens, 1860 accepted as Arianta W. Turton, 1831 (unjustified emendation of Arianta)
      » Species Helix (Arionta) tardyi Delafond & Depéret, 1893 † (taxon inquirendum)
    » Subgenus Helix (Ariophanta) Des Moulins, 1829 accepted as Ariophanta Des Moulins, 1829 (original rank)
    » Subgenus Helix (Atopa) Albers, 1850 accepted as Corilla H. Adams & A. Adams, 1855 (Invalid: junior homonym of Atopa Paykull, 1799 [Coleoptera])
    » Subgenus Helix (Aulacospira) Möllendorff, 1890 accepted as Aulacospira Möllendorff, 1890
      » Species Helix (Aulacospira) azpeitiae Hidalgo, 1890 accepted as Pseudostreptaxis azpeitiae (Hidalgo, 1890) (original combination)
    » Subgenus Helix (Axina) Albers, 1850 accepted as Anixa Pilsbry, 1895 (Invalid: junior homonym of Axina Kirby, 1819 [Coleoptera]; Anixa is a replacement name)
    » Subgenus Helix (Buliminopsis) Heude, 1890 accepted as Buliminopsis Heude, 1890 (unaccepted rank)
    » Subgenus Helix (Callina) R. T. Lowe, 1855 accepted as Callina R. T. Lowe, 1855 (original rank)
    » Subgenus Helix (Camaena) Albers, 1850 accepted as Camaena Albers, 1850 (original rank)
      » Species Helix (Camaena) aureedensis Brazier, 1872 accepted as Figuladra incei lessoni (Pfeiffer, 1846) (junior synonym)
      » Species Helix (Camaena) bairdi H. Adams, 1866 accepted as Satsuma bairdi (H. Adams, 1866) (original combination)
      » Species Helix (Camaena) barneyi Cox, 1873 accepted as Hadra barneyi (Cox, 1873) (original combination)
      » Species Helix (Camaena) billeti H. Fischer, 1898 accepted as Camaena billeti (H. Fischer, 1898) (original combination)
      » Species Helix (Camaena) challisi Cox, 1873 accepted as Figuladra challisi (Cox, 1873) (basionym)
      » Species Helix (Camaena) cicatricosa (O. F. Müller, 1774) accepted as Camaena cicatricosa (O. F. Müller, 1774)
      » Species Helix (Camaena) congenita E. A. Smith, 1878 accepted as Euhadra congenita (E. A. Smith, 1878) (original combination)
      » Species Helix (Camaena) duporti Bavay & Dautzenberg, 1909 accepted as Neotrachia duporti (Bavay & Dautzenberg, 1909) (basionym)
      » Species Helix (Camaena) editha A. Adams, 1868 accepted as Ainohelix editha (A. Adams, 1868) (original combination)
      » Species Helix (Camaena) gabriellae Dautzenberg & d'Hammonville, 1887 accepted as Camaena gabriellae (Dautzenberg & d'Hammonville, 1887)
        » Subspecies Helix (Camaena) gabriellae subhainensis Pilsbry, 1891 accepted as Camaena gabriellae subhainensis (Pilsbry, 1891) (original combination)
      » Species Helix (Camaena) hainanensis H. Adams, 1870 accepted as Camaena hainanensis (H. Adams, 1870) (original combination)
      » Species Helix (Camaena) lavezzarii Bavay & Dautzenberg, 1900 accepted as Camaena choboensis (Mabille, 1889) (synonym)
      » Species Helix (Camaena) lewisii E. A. Smith, 1878 accepted as Satsuma lewisii (E. A. Smith, 1878) (original combination)
      » Species Helix (Camaena) miranda A. Adams, 1868 accepted as Karaftohelix blakeana (Newcomb, 1865) (junior synonym)
      » Species Helix (Camaena) mirifica Bavay & Dautzenberg, 1908 accepted as Camaena mirifica (Bavay & Dautzenberg, 1908) (original combination)
      » Species Helix (Camaena) serotina A. Adams, 1868 accepted as Karaftohelix blakeana (Newcomb, 1865) (junior synonym)
      » Species Helix (Camaena) succincta H. Adams, 1866 accepted as Satsuma succincta (H. Adams, 1866) (original combination)
      » Species Helix (Camaena) vayssierei Bavay & Dautzenberg, 1909 accepted as Camaena vayssierei (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Camaena) vorvonga Bavay & Dautzenberg, 1900 accepted as Camaena vorvonga (Bavay & Dautzenberg, 1900) (original combination)
    » Subgenus Helix (Camena) E. von Martens, 1860 accepted as Camaena Albers, 1850 (invalid: unjustified emendation of Camaena)
      » Species Helix (Camena) constantinae Adams, 1870 accepted as Cathaica constantinae (H. Adams, 1870) (original combination)
    » Subgenus Helix (Campylaea) H. Beck, 1837 accepted as Campylaea H. Beck, 1837
    » Subgenus Helix (Caprinus) Montfort, 1810 accepted as Pleurodonte Fischer von Waldheim, 1807
    » Subgenus Helix (Caracolina) H. Beck, 1837 accepted as Caracollina H. Beck, 1837 (incorrect subsequent spelling)
    » Subgenus Helix (Carocolla) accepted as Caracolus Montfort, 1810 (incorrect subsequent spelling)
    » Subgenus Helix (Carthusiana) Kobelt, 1871 accepted as Monacha Fitzinger, 1833
    » Subgenus Helix (Charopa) Martens, 1860 accepted as Charopa E. von Martens, 1860
      » Species Helix (Charopa) ammonitoides Brazier, 1871 accepted as Ammoniropa vigens (Legrand, 1871) (junior synonym)
      » Species Helix (Charopa) bassi Legrand, 1871 accepted as Ammoniropa vigens (Legrand, 1871) (junior synonym)
      » Species Helix (Charopa) curacoae Brazier, 1871 accepted as Protractiropa curacoae (Brazier, 1871) (original combination)
      » Species Helix (Charopa) dispar Brazier, 1871 accepted as Dentherona dispar (Brazier, 1871) (original combination)
      » Species Helix (Charopa) limula Legrand, 1871 accepted as Tasmathera limula (Legrand, 1871) (original combination)
      » Species Helix (Charopa) neglecta Brazier, 1871 accepted as Planilaoma luckmanii (Brazier, 1877) (invalid: junior homonym of Helix neglecta Draparnaud, 1805)
      » Species Helix (Charopa) ricei Brazier, 1871 accepted as Tasmathera ricei (Brazier, 1871) (original combination)
      » Species Helix (Charopa) subdepressa Brazier, 1872 accepted as Meredithena dandenongensis (Petterd, 1879) (invalid: junior homonym of Helix subdepressa d'Orbigny, 1852)
      » Species Helix (Charopa) wilkinsoni Brazier, 1889 accepted as Charopella wilkinsoni (Brazier, 1889) (original combination)
    » Subgenus Helix (Chilanodon) Westerlund, 1897 accepted as Chilanodon Westerlund, 1897 (original rank)
    » Subgenus Helix (Chloraea) Albers, 1850 accepted as Chloraea Albers, 1850 (original rank)
    » Subgenus Helix (Chloritis) Beck, 1837 accepted as Chloritis H. Beck, 1837 (original rank)
      » Species Helix (Chloritis) balansai Morlet, 1886 accepted as Trachia balansai (Morlet, 1886)
        » Variety Helix (Chloritis) balansai var. cincta Dautzenberg & Fischer, 1905 accepted as Trachia balansai (Morlet, 1886) (original combination)
      » Species Helix (Chloritis) cavaleriei Bavay, 1913 accepted as Entadella cavaleriei (Bavay, 1913) (original combination)
      » Species Helix (Chloritis) cordieri Bavay & Dautzenberg, 1909 accepted as Trachia cordieri (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Chloritis) durandi Bavay & Dautzenberg, 1900 accepted as Trachia durandi (Bavay & Dautzenberg, 1900) (original combination)
      » Species Helix (Chloritis) gereti Bavay & Dautzenberg, 1900 accepted as Trichochloritis gereti (Bavay & Dautzenberg, 1900) (original combination)
      » Species Helix (Chloritis) lambineti Bavay & Dautzenberg, 1899 accepted as Trachia lambineti (Bavay & Dautzenberg, 1899) (original combination)
      » Species Helix (Chloritis) lemeslei Morlet, 1891 accepted as Camaena lemeslei (Morlet, 1891) (original combination)
      » Species Helix (Chloritis) limatulata Bavay & Dautzenberg, 1909 accepted as Trachia limatulata (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Chloritis) marimberti Bavay & Dautzenberg, 1900 accepted as Trachia marimberti (Bavay & Dautzenberg, 1900) (original combination)
      » Species Helix (Chloritis) millepunctata E. A. Smith, 1894 accepted as Damochlora millepunctata (E. A. Smith, 1894) (basionym)
      » Species Helix (Chloritis) nasuta Bavay & Dautzenberg, 1909 accepted as Trachia nasuta (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Chloritis) pseudomiara Bavay & Dautzenberg, 1909 accepted as Bellatrachia pseudomiara (Bavay & Dautzenberg, 1909) (basionym)
      » Species Helix (Chloritis) rectilabrum E.A. Smith, 1894 accepted as Setobaudinia rectilabrum (E.A. Smith, 1894) (basionym)
      » Species Helix (Chloritis) remoratrix Morlet, 1893 accepted as Chloritis remoratrix (Morlet, 1893) (original combination)
      » Species Helix (Chloritis) schlosseriana Brusina, 1874 † accepted as Pseudochloritis schlosseriana (Brusina, 1874) † (new combination)
    » Subgenus Helix (Cochlicella) A. Férussac, 1821 accepted as Cochlicella A. Férussac, 1821
      » Species Helix (Cochlicella) hannensis Rang, 1831 accepted as Opeas hannense (Rang, 1831) (original combination)
    » Subgenus Helix (Cochlicopa) accepted as Cochlicopa A. Férussac, 1821 (original rank)
    » Subgenus Helix (Cochlitoma) Férussac, 1821 accepted as Cochlitoma A. Férussac, 1821 (original rank)
    » Subgenus Helix (Cochlodonta) A. Férussac, 1821 accepted as Cochlodonta A. Férussac, 1821
      » Species Helix (Cochlodonta) palanga A. Férussac, 1821 accepted as Gonospira palanga (Lesson, 1831) (nomen dubium)
      » Species Helix (Cochlodonta) palangula A. Férussac, 1821 (nomen nudum)
      » Species Helix (Cochlodonta) pagoda A. Férussac, 1821 accepted as Gonidomus concamerata (Wood, 1828) (nomen nudum)
    » Subgenus Helix (Cochlogena) Férussac, 1821 accepted as Bulimulus Leach, 1814
      » Species Helix (Cochlogena) aedilis Férussac, 1821 accepted as Limicolaria kambeul (Bruguière, 1792) (junior synonym)
      » Species Helix (Cochlogena) apodemetes d'Orbigny, 1835 accepted as Bulimulus apodemetes (d'Orbigny, 1835) (original combination)
      » Species Helix (Cochlogena) aurisbovinus Férussac, 1821 accepted as Placostylus fibratus (Martyn, 1784)
      » Species Helix (Cochlogena) bahiensis S. Moricand, 1834 accepted as Bahiensis bahiensis (S. Moricand, 1834) (original combination)
      » Species Helix (Cochlogena) crepundia d'Orbigny, 1835 accepted as Naesiotus crepundia (d'Orbigny, 1835) (original combination)
      » Species Helix (Cochlogena) flammata Cailliaud, 1823 accepted as Bulimus cailliaudi L. Pfeiffer, 1850 (junior primary homonym of Helix flammata Férussac, 1821)
      » Species Helix (Cochlogena) mathiusii d'Orbigny, 1835 accepted as Megalobulimus leucostoma (G. B. Sowerby I, 1835)
      » Species Helix (Cochlogena) montivaga d'Orbigny, 1835 accepted as Naesiotus montivagus (d'Orbigny, 1835) (original combination)
      » Species Helix (Cochlogena) rocayana d'Orbigny, 1835 accepted as Naesiotus rocayanus (d'Orbigny, 1835) (original combination)
      » Species Helix (Cochlogena) zebrula A. Férussac, 1821 accepted as Chondrus zebrula (A. Férussac, 1821) (basionym)
    » Subgenus Helix (Cochlostyla) A. Férussac, 1821 accepted as Cochlostyla A. Férussac, 1821
      » Species Helix (Cochlostyla) pardalis Férussac, 1821 accepted as Dryptus pardalis (Férussac, 1821) (original combination)
      » Species Helix (Cochlostyla) taunaisii Férussac, 1822 accepted as Thaumastus taunaisii (Férussac, 1822) (original combination)
    » Subgenus Helix (Conulus) Fitzinger, 1833 accepted as Euconulus Reinhardt, 1883 (Invalid: junior homonym of Conulus Leske, 1778 [Echinodermata])
      » Species Helix (Conulus) darnleyensis Brazier, 1876 accepted as Coneuplecta pampini (Cox, 1868) (junior synonym)
      » Species Helix (Conulus) elasmodonta Reuss, 1861 † accepted as Strobilops (Eostrobilops) elasmodonta (Reuss, 1861) † (new combination)
      » Species Helix (Conulus) elleryi Brazier, 1875 accepted as Coneuplecta microconus (Mousson, 1865) (junior synonym)
      » Species Helix (Conulus) pampini Cox, 1868 accepted as Coneuplecta pampini (Cox, 1868) (original combination)
      » Species Helix (Conulus) porti Brazier, 1876 accepted as Pupisoma porti (Brazier, 1876) (original combination)
      » Species Helix (Conulus) russelli Brazier, 1875 accepted as Sodaleta russelli (Brazier, 1875) (original name)
      » Species Helix (Conulus) subturritula G. Nevill & H. Nevill, 1871 accepted as Nesokaliella subturritula (G. Nevill & H. Nevill, 1871) (original combination)
    » Subgenus Helix (Corasia) Albers, 1850 accepted as Chloraea Albers, 1850 (Invalid: junior homonym of Corasia Huebner, 1826 [Lepidoptera])
      » Species Helix (Corasia) anadyomene A. Adams & Angas, 1864 accepted as Crystallopsis anadyomene (A. Adams & Angas, 1864) (original combination)
      » Species Helix (Corasia) balcombei Cox, 1873 accepted as Crystallopsis balcombei (Cox, 1873) (original combination)
      » Species Helix (Corasia) psyche Angas, 1870 accepted as Crystallopsis psyche (Angas, 1870) (original combination)
      » Species Helix (Corasia) rossiteri Angas, 1869 accepted as Crystallopsis rossiteri (Angas, 1869) (original combination)
      » Species Helix (Corasia) tricolor Pfeiffer, 1850 accepted as Crystallopsis tricolor (Pfeiffer, 1850)
      » Species Helix (Corasia) wisemani Brazier, 1876 accepted as Crystallopsis wisemani (Brazier, 1876) (basionym)
      » Species Helix (Corasia) woodfordi G. B. Sowerby III, 1890 accepted as Crystallopsis woodfordi (Sowerby III, 1890) (original combination)
    » Subgenus Helix (Corilla) H. Adams & A. Adams, 1855 accepted as Corilla H. Adams & A. Adams, 1855
      » Species Helix (Corilla) damarensis H. Adams, 1870 accepted as Sculptaria damarensis (H. Adams, 1870) (original combination)
      » Species Helix (Corilla) pettos Martens, 1868 accepted as Endothyrella pinacis (Benson, 1859) (junior synonym)
    » Subgenus Helix (Cornu) Born, 1778 accepted as Cornu Born, 1778
      » Species Helix (Cornu) aspersa O. F. Müller, 1774 accepted as Cornu aspersum (O. F. Müller, 1774) (superseded combination)
    » Subgenus Helix (Coryda) Albers, 1850 accepted as Coryda Albers, 1850 (original rank)
    » Subgenus Helix (Craspedaria) R. T. Lowe, 1852 accepted as Craspedaria R. T. Lowe, 1852 (original combination)
      » Species Helix (Craspedaria) coronula R. T. Lowe, 1852 accepted as Geomitra coronula (R. T. Lowe, 1852) (original combination)
    » Subgenus Helix (Crenea) Albers, 1850 accepted as Creneatachea Zilch, 1960 † (junior homonym of Crenea Risso, 1826)
    » Subgenus Helix (Cyrtochilus) F. Sandberger, 1875 † accepted as Cyrtochilus F. Sandberger, 1875 †
    » Subgenus Helix (Dentellocaracolus) Oppenheim, 1890 † accepted as Dentellocaracolus Oppenheim, 1890 †
    » Subgenus Helix (Dialeuca) Albers, 1850 accepted as Dialeuca Albers, 1850 (original rank)
    » Subgenus Helix (Dimorphoptychia) F. Sandberger, 1871 † accepted as Dimorphoptychia F. Sandberger, 1871 †
      » Species Helix (Dimorphoptychia) arnouldi Michaud, 1837 † accepted as Dimorphoptychia arnoudii (Michaud, 1837) † (incorrect subsequent spelling)
    » Subgenus Helix (Discus) Fitzinger, 1833 accepted as Discus Fitzinger, 1833
      » Species Helix (Discus) agnewi Legrand, 1871 accepted as Exquisitiropa agnewi (Legrand, 1871) (original combination)
      » Species Helix (Discus) kingstonensis Legrand, 1871 accepted as Diemenoropa kingstonensis (Legrand, 1871) (original combination)
      » Species Helix (Discus) ramsgatensis Legrand, 1871 accepted as Protractiropa curacoae (Brazier, 1871) (junior synonym)
    » Subgenus Helix (Discus) Albers, 1850 accepted as Videna H. Adams & A. Adams, 1855 (invalid: junior homonym of Discus Fitzinger, 1833; Disculus and Videna are replacement names)
      » Species Helix (Discus) cerealis Cox, 1873 accepted as Trochomorpha meleagris (L. Pfeiffer, 1855) (invalid: junior homonym of H. cerealis Crosse, 1868; H. thorpeiana Brazier, 1883 is a replacement name)
      » Species Helix (Discus) juliformis Legrand, 1871 accepted as Diemenoropa kingstonensis (Legrand, 1871) (junior synonym)
      » Species Helix (Discus) officeri Legrand, 1871 accepted as Scelidoropa officeri (Legrand, 1871) (original combination)
      » Species Helix (Discus) spectra Legrand, 1871 accepted as Diemenoropa kingstonensis (Legrand, 1871) (junior synonym)
      » Species Helix (Discus) thorpeiana Brazier, 1883 accepted as Trochomorpha meleagris (L. Pfeiffer, 1855) (junior synonym)
      » Species Helix (Discus) vigens Legrand, 1871 accepted as Ammoniropa vigens (Legrand, 1871) (original combination)
    » Subgenus Helix (Dorcasia) Gray, 1838 accepted as Dorcasia Gray, 1838
    » Subgenus Helix (Endodonta) Albers, 1850 accepted as Endodonta Albers, 1850
      » Species Helix (Endodonta) fuscozonata Beddome, 1889 represented as Helix fuscozonata Beddome, 1889
      » Species Helix (Endodonta) kororensis Beddome, 1889 accepted as Semperdon kororensis (Beddome, 1889) (original combination)
    » Subgenus Helix (Epiphragmophora) Doering, 1875 accepted as Epiphragmophora Doering, 1875
    » Subgenus Helix (Erepta) Albers, 1850 accepted as Erepta Albers, 1850 (original rank)
    » Subgenus Helix (Erigone) Albers, 1850 accepted as Chloritis (Eustomopsis) Gude, 1906 (Invalid: junior homonym of Erigone Audouin, 1826 [Arachnida])
    » Subgenus Helix (Euhadra) Pilsbry, 1890 accepted as Euhadra Pilsbry, 1890
    » Subgenus Helix (Eulota) W. Hartmann, 1841 accepted as Fruticicola Held, 1838 (a junior synonym)
    » Subgenus Helix (Euparypha) W. Hartmann, 1843 accepted as Theba Risso, 1826
    » Subgenus Helix (Eurycratera) H. Beck, 1837 accepted as Eurycratera H. Beck, 1837
      » Species Helix (Eurycratera) betsileoensis Angas, 1879 accepted as Helicophanta betsileoensis (Angas, 1879) (original combination)
      » Species Helix (Eurycratera) ibaraoensis Angas, 1879 accepted as Helicophanta ibaraoensis (Angas, 1879) (original combination)
    » Subgenus Helix (Fruticicola) Held, 1838 accepted as Fruticicola Held, 1838 (considered a separate genus)
      » Species Helix (Fruticicola) apicalis Reuss, 1861 † accepted as Leucochroopsis apicalis (Reuss, 1861) † (new combination)
      » Species Helix (Fruticicola) collinsoni A. Adams, 1868 accepted as Trishoplita collinsoni (A. Adams, 1868) (original combination)
      » Species Helix (Fruticicola) commoda A. Adams, 1868 accepted as Trishoplita commoda (A. Adams, 1868) (original combination)
      » Species Helix (Fruticicola) craspedocheila A. Adams, 1868 accepted as Euhadra craspedocheila (A. Adams, 1868) (original combination)
      » Species Helix (Fruticicola) crebripunctata F. Sandberger, 1858 † accepted as Leucochroopsis crebripunctata (F. Sandberger, 1858) † (new combination)
      » Species Helix (Fruticicola) devexa Reuss, 1861 accepted as Apula devexa (Reuss, 1861) † (new combination)
      » Species Helix (Fruticicola) gibbosa A. Adams, 1868 accepted as Satsuma gibbosa (A. Adams, 1868)
      » Species Helix (Fruticicola) goniostoma Sandberger, 1872 † accepted as Klikia (Apula) goniostoma (Sandberger, 1872) † (new combination)
      » Species Helix (Fruticicola) homalospira Reuss, 1861 † accepted as Pseudomonacha homalospira (Reuss, 1861) † (new combination)
      » Species Helix (Fruticicola) moedlingensis Schlosser, 1907 † accepted as Leucochroopsis kleinii (Klein, 1846) † (junior synonym)
      » Species Helix (Fruticicola) patruelis A. Adams, 1868 accepted as Satsuma patruelis (A. Adams, 1868) (original combination)
      » Species Helix (Fruticicola) peculiaris A. Adams, 1868 accepted as Satsuma japonica peculiaris (A. Adams, 1868) (original combination)
      » Species Helix (Fruticicola) proba A. Adams, 1868 accepted as Aegista proba (A. Adams, 1868) (original combination)
      » Species Helix (Fruticicola) sphinctostoma A. Adams, 1868 accepted as Satsuma sphinctostoma (A. Adams, 1868) (original combination)
      » Species Helix (Fruticicola) subvillosa Sandberger, 1858 † accepted as Leucochroopsis (Palaeotrichia) subvillosa (Sandberger, 1858) † (new combination)
    » Subgenus Helix (Fruticocampylaea) Kobelt, 1871 accepted as Fruticocampylaea Kobelt, 1871 (original rank)
      » Species Helix (Fruticocampylaea) adshariensis Lindholm, 1913 accepted as Hesseola solidior (Mousson, 1873) (a junior synonym)
      » Species Helix (Fruticocampylaea) eichwaldi L. Pfeiffer, 1846 accepted as Caucasigena eichwaldi (L. Pfeiffer, 1846) (new combination)
      » Species Helix (Fruticocampylaea) gerassimovi Lindholm, 1913 accepted as Caucasigena eichwaldi rengarteni (Lindholm, 1913) (original combination)
      » Species Helix (Fruticocampylaea) ioannis Mortillet, 1854 accepted as Caucasocressa ioannis (Mortillet, 1854) (new combination)
      » Species Helix (Fruticocampylaea) phaeolaema O. Boettger, 1886 accepted as Teberdinia phaeolaema (O. Boettger, 1886) (original combination)
      » Species Helix (Fruticocampylaea) rengarteni Lindholm, 1913 accepted as Caucasigena eichwaldi rengarteni (Lindholm, 1913) (original combination)
      » Species Helix (Fruticocampylaea) zolotarevi Lindholm, 1913 accepted as Teberdinia flavolimbata (O. Boettger, 1883) (a junior synonym)
    » Subgenus Helix (Galactochilus) F. Sandberger, 1875 accepted as Polydontes (Galactochilus) F. Sandberger, 1875 (basionym)
    » Subgenus Helix (Galaxias) Beck, 1837 accepted as Trigonephrus Pilsbry, 1905 (invalid: junior homonym of Galaxias Cuvier, 1816)
    » Subgenus Helix (Ganesella) W.T. Blanford, 1863 accepted as Ganesella W.T. Blanford, 1863
    » Subgenus Helix (Gastrodonta) Albers, 1850 accepted as Gastrodonta Albers, 1850 (original rank)
    » Subgenus Helix (Geotrochus) van Hasselt, 1823 accepted as Geotrochus van Hasselt, 1823
      » Species Helix (Geotrochus) adonis Angas, 1870 accepted as Papuina adonis (Angas, 1870) (original combination)
      » Species Helix (Geotrochus) brenchleyi Brazier, 1876 accepted as Papuina splendescens (Cox, 1866) (junior synonym)
      » Species Helix (Geotrochus) caerulescens Angas, 1870 accepted as Papuina caerulescens (Angas, 1870) (invalid: junior homonym of Helix caerulescens Gmelin, 1791)
      » Species Helix (Geotrochus) deidamia Angas, 1870 accepted as Papuina meta (L. Pfeiffer, 1856) (junior synonym)
      » Species Helix (Geotrochus) gelata Cox, 1873 accepted as Papuina gelata (Cox, 1873) (original combination)
      » Species Helix (Geotrochus) gorenduensis Brazier, 1886 accepted as Rhynchotrochus gorenduensis (Brazier, 1886) (original combination)
      » Species Helix (Geotrochus) guppyi E. A. Smith, 1885 accepted as Papuina guppyi (E. A. Smith, 1885) (original combination)
      » Species Helix (Geotrochus) gurgustii Cox, 1879 accepted as Rhynchotrochus gurgustii (Cox, 1879) (original combination)
      » Species Helix (Geotrochus) hargreavesi Angas, 1870 accepted as Papuina hargreavesi (Angas, 1870) (original combination)
      » Species Helix (Geotrochus) heimburgi Branesik, 1891 accepted as Papustyla hindei (Cox, 1886) (junior synonym)
      » Species Helix (Geotrochus) hermione Angas, 1870 accepted as Papuina hermione (Angas, 1869) (original combination)
      » Species Helix (Geotrochus) leucophaea Cox, 1872 accepted as Megalacron migratoria (Pfeiffer, 1855) (junior synonym)
      » Species Helix (Geotrochus) macfarlanei Cox, 1873 accepted as Megalacron macfarlanei (Cox, 1873) (original combination)
      » Species Helix (Geotrochus) mendoza Brazier, 1872 accepted as Papuina mendoza (Brazier, 1872) (original combination)
      » Species Helix (Geotrochus) moseleyi E. A. Smith, 1884 accepted as Helix novaegeorgiensis Cox, 1870 (junior synonym)
      » Species Helix (Geotrochus) papillifera Klika, 1891 † accepted as Metacampylaea papillifera (Klika, 1891) † (new combination)
      » Species Helix (Geotrochus) perakensis Crosse, 1879 accepted as Ganesella acris perakensis (Crosse, 1879) (original combination)
      » Species Helix (Geotrochus) philomela Angas, 1872 accepted as Papuina philomela (Angas, 1872) (original combination)
      » Species Helix (Geotrochus) redempta Cox, 1873 accepted as Papuina redempta (Cox, 1873) (original combination)
      » Species Helix (Geotrochus) strabo Brazier, 1876 accepted as Rhynchotrochus strabo (Brazier, 1876) (original combination)
      » Species Helix (Geotrochus) tapparonei E. A. Smith, 1883 accepted as Rhynchotrochus naso (Martens, 1883) (junior synonym)
      » Species Helix (Geotrochus) thomsoni E. A. Smith, 1889 accepted as Rhynchotrochus misima (Iredale, 1941) (invalid: junior homonym of H. thomsoni Pfeiffer, 1871)
      » Species Helix (Geotrochus) vatheleti Bavay & Dautzenberg, 1899 accepted as Ganesella vatheleti (Bavay & Dautzenberg, 1899) (original combination)
      » Species Helix (Geotrochus) wiegmanni Martens, 1894 accepted as Rhynchotrochus wiegmanni (Martens, 1894) (original combination)
      » Species Helix (Geotrochus) yulensis Brazier, 1876 accepted as Rhynchotrochus yulensis (Brazier, 1876) (original combination)
    » Subgenus Helix (Glaphyra) Albers, 1850 accepted as Vallonia Risso, 1826 (Invalid: junior homonym of Glaphyra Newman, 1840 [Coleoptera])
    » Subgenus Helix (Glyptorhagada) Pilsbry, 1891 accepted as Glyptorhagada Pilsbry, 1890 (original rank)
    » Subgenus Helix (Gonostoma) Held, 1838 accepted as Helicodonta A. Férussac, 1821 (invalid: junior homonym of Gonostoma Rafinesque, 1810)
      » Species Helix (Gonostoma) baudinensis E. A. Smith, 1893 accepted as Baudinella baudinensis (E. A. Smith, 1893) (basionym)
      » Species Helix (Gonostoma) blaviana K. Miller, 1907 † accepted as Klikia praeosculina (K. Miller, 1907) † (junior synonym)
      » Species Helix (Gonostoma) collingii E. A. Smith, 1893 accepted as Setobaudinia collingii (E. A. Smith, 1893) (basionym)
      » Species Helix (Gonostoma) jungi O. Boettger, 1897 † accepted as Klikia jungi (O. Boettger, 1897) † (new combination)
      » Species Helix (Gonostoma) leubii K. Miller, 1907 † accepted as Klikia praeosculina (K. Miller, 1907) † (junior synonym)
      » Species Helix (Gonostoma) patuliformis Sacco, 1886 † accepted as Eostrobilops patuliformis (Sacco, 1886) † (new combination)
      » Species Helix (Gonostoma) praeosculina K. Miller, 1907 † accepted as Klikia praeosculina (K. Miller, 1907) † (new combination)
      » Species Helix (Gonostoma) sublenticuloides Łomnicki, 1886 † accepted as Canariella sublenticuloides (Łomnicki, 1886) † (new combination)
    » Subgenus Helix (Grandipatula) Cossmann, 1889 † accepted as Grandipatula Cossmann, 1889 †
    » Subgenus Helix (Hadra) Martens, 1860 accepted as Hadra E. von Martens, 1860
      » Species Helix (Hadra) bayensis Brazier, 1876 accepted as Figuladra bayensis (Brazier, 1876) (basionym)
      » Species Helix (Hadra) bennetti Brazier, 1872 accepted as Pallidelix bennetti (Brazier, 1872) (basionym)
      » Species Helix (Hadra) burnerensis E. A. Smith, 1894 accepted as Amplirhagada burnerensis (E. A. Smith, 1894) (basionym)
      » Species Helix (Hadra) cassandra Pfeiffer, 1864 accepted as Cupedora cassandra (Pfeiffer, 1864) (original combination)
      » Species Helix (Hadra) darwini Brazier, 1872 accepted as Spurlingia darwini (Brazier, 1872) (original combination)
      » Species Helix (Hadra) derbyi Cox, 1892 accepted as Westraltrachia derbyi (Cox, 1892) (original combination)
      » Species Helix (Hadra) elderi Bednall, 1892 accepted as Basedowena elderi (Bednall, 1892) (original combination)
      » Species Helix (Hadra) evandaleana Pfeiffer, 1864 accepted as Cupedora evandaleana (Pfeiffer, 1864) (original combination)
      » Species Helix (Hadra) everardensis Bednall, 1892 accepted as Pleuroxia everardensis (Bednall, 1892) (original combination)
      » Species Helix (Hadra) fodinalis Bednall, 1892 accepted as Sinumelon fodinalis (Bednall, 1892) (original combination)
      » Species Helix (Hadra) imitata E. A. Smith, 1894 accepted as Amplirhagada imitata (E.A. Smith, 1894) (basionym)
      » Species Helix (Hadra) lincolnensis Pfeiffer, 1864 accepted as Cupedora lincolnensis (Pfeiffer, 1864) (original combination)
      » Species Helix (Hadra) montalivetensis E. A. Smith, 1894 accepted as Amplirhagada montalivetensis (E.A. Smith, 1894) (basionym)
      » Species Helix (Hadra) oscarensis Cox, 1892 accepted as Westraltrachia oscarensis (Cox, 1892) (original combination)
      » Species Helix (Hadra) parsoni Cox, 1872 accepted as Figuladra incei curtisiana (Pfeiffer, 1864) (junior synonym)
      » Species Helix (Hadra) patruelis Angas, 1864 accepted as Cupedora patruelis (Angas, 1864) (basionym)
      » Species Helix (Hadra) prudhoensis E. A. Smith, 1894 accepted as Globorhagada prudhoensis (E.A. Smith, 1894)
      » Species Helix (Hadra) rufofasciata Brazier, 1875 accepted as Cupedora rufofasciata (Brazier, 1875) (basionym)
      » Species Helix (Hadra) stephensoniana Brazier, 1872 accepted as Temporena sardalabiata (Cox, 1871) (junior synonym)
      » Species Helix (Hadra) sublorioliana Pilsbry, 1890 accepted as Cupedora sublorioliana (Pilsbry, 1890) (basionym)
      » Species Helix (Hadra) sykesi E. A. Smith, 1894 accepted as Amplirhagada sykesi (E.A. Smith, 1894) (basionym)
      » Species Helix (Hadra) yeppoonensis Beddome, 1897 accepted as Figuladra incei lessoni (Pfeiffer, 1846) (junior synonym)
    » Subgenus Helix (Helicella) Gray, 1847 accepted as Helicella A. Férussac, 1821
      » Species Helix (Helicella) planorbitanus De Gregorio, 1880 † (taxon inquirendum)
      » Species Helix (Helicella) ambiguosa Ferussac, 1821 accepted as Trigonephrus ambiguosus (Ferussac, 1821) (original combination)
      » Species Helix (Helicella) berytensis L. Pfeiffer, 1841 accepted as Metafruticicola berytensis (L. Pfeiffer, 1841) (original combination)
      » Species Helix (Helicella) cretica L. Pfeiffer, 1841 accepted as Xerocrassa cretica (L. Pfeiffer, 1841) (original combination)
      » Species Helix (Helicella) fallaciosa Férussac, 1832 accepted as Trachia fallaciosa (Férussac, 1832) (original combination)
      » Species Helix (Helicella) modestiuscula De Gregorio, 1880 † accepted as Dentellocaracolus modestiusculus (De Gregorio, 1880) † (new combination)
      » Species Helix (Helicella) proxima Férussac, 1832 accepted as Trachia proxima (Férussac, 1832) (original combination)
      » Species Helix (Helicella) pusilla Lowe, 1831 accepted as Paralaoma servilis (Shuttleworth, 1852) (name preoccupied)
      » Species Helix (Helicella) sepulcralis Férussac, 1821 accepted as Ampelita sepulcralis (Férussac, 1821) (original combination)
      » Species Helix (Helicella) similaris Férussac, 1821 accepted as Bradybaena similaris (Férussac, 1822) (invalid: nomen nudum)
    » Subgenus Helix (Helicigona) Férussac, 1821 accepted as Helicigona A. Férussac, 1821
    » Subgenus Helix (Helicogena) A. Férussac, 1821 accepted as Helix Linnaeus, 1758 (junior synonym)
      » Species Helix (Helicogena) barbeyana De Stefani in De Stefani et al., 1891 † accepted as Helix barbeyana De Stefani in De Stefani et al., 1891 †
      » Species Helix (Helicogena) cavata Mousson, 1854 accepted as Helix engaddensis Bourguignat, 1852
        » Subspecies Helix (Helicogena) cavata tripolitana Kobelt, 1905 accepted as Helix engaddensis Bourguignat, 1852 (junior synonym)
      » Species Helix (Helicogena) engaddensis Bourguignat, 1852 accepted as Helix engaddensis Bourguignat, 1852
      » Species Helix (Helicogena) kisonis Kobelt, 1905 accepted as Helix engaddensis Bourguignat, 1852
      » Species Helix (Helicogena) similaris Férussac, 1822 accepted as Bradybaena similaris (Férussac, 1822) (original combination)
      » Species Helix (Helicogena) volensis Kobelt, 1906 accepted as Helix pelagonesica (Rolle, 1898) (junior synonym)
      » Species Helix (Helicogena) wohlberedti Kobelt, 1905 accepted as Helix vladica (Kobelt, 1898) (junior synonym)
        » Subspecies Helix (Helicogena) wohlberedti pomatiaeformis Kobelt, 1905 accepted as Helix vladica (Kobelt, 1898) (junior synonym)
        » Variety Helix (Helicogena) wohlberedti var. poljensis Kobelt, 1905 accepted as Helix vladica (Kobelt, 1898) (junior synonym)
    » Subgenus Helix (Helicophanta) A. Férussac, 1821 accepted as Helicophanta A. Férussac, 1821
    » Subgenus Helix (Hemistenotrema) O. Boettger, 1897 † accepted as Hemistenotrema O. Boettger, 1897 †
    » Subgenus Helix (Hyalina) S. Studer, 1820 accepted as Vitrina Draparnaud, 1801 (junior objective synonym)
    » Subgenus Helix (Hygromia) Risso, 1826 accepted as Hygromia Risso, 1826
      » Species Helix (Hygromia) bednalli Brazier, 1872 accepted as Cupedora bednalli (Brazier, 1872) (original combination)
    » Subgenus Helix (Hystricella) R. T. Lowe, 1855 accepted as Hystricella R. T. Lowe, 1855 (original rank)
    » Subgenus Helix (Iberus) Montfort, 1810 accepted as Iberus Montfort, 1810
    » Subgenus Helix (Isthmia) Gray, 1821 accepted as Vertigo (Isthmia) Gray, 1821 (original name)
      » Species Helix (Isthmia) cylindrica Gray, 1821 accepted as Vertigo pygmaea (Draparnaud, 1801) (junior synonym)
    » Subgenus Helix (Jacosta) Gray, 1821 accepted as Xerosecta Monterosato, 1892 (inalid: Placed on Index)
      » Species Helix (Jacosta) amphiconus Maltzan, 1883 accepted as Xerocrassa amphiconus (Maltzan, 1883) (original combination)
    » Subgenus Helix (Janira) Albers, 1850 accepted as Oreobba Pilsbry, 1894 (Invalid: junior homonym of Janira Leach, 1814 [Crustacea]; Oreooba is a replacement name)
    » Subgenus Helix (Jasonella) Lindholm, 1927 accepted as Jasonella Lindholm, 1927 (new combination)
    » Subgenus Helix (Leiocheila) Albers, 1850 accepted as Eurycratera H. Beck, 1837 (objective junior synonym)
    » Subgenus Helix (Leucochroa) H. Beck, 1837 accepted as Theba Risso, 1826 (junior synonym)
    » Subgenus Helix (Levantina) Kobelt, 1871 accepted as Levantina Kobelt, 1871
      » Species Helix (Levantina) arnoldi Rolle in Kobelt, 1895 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
      » Species Helix (Levantina) caesareana Mousson, 1854 accepted as Levantina caesareana (Mousson, 1854)
        » Forma Helix (Levantina) caesareana f. jordana Avnimelech, 1933 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
        » Forma Helix (Levantina) caesareana f. libanica Avnimelech, 1933 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
        » Variety Helix (Levantina) caesareana var. depressa Germain, 1921 accepted as Levantina caesareana (Mousson, 1854) (junior synonym; non Helix depressa Montagu, 1803)
      » Species Helix (Levantina) eliae Kobelt, 1895 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
      » Species Helix (Levantina) gerstenbrandti Kobelt, 1895 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
      » Species Helix (Levantina) kurdistana (L. Pfeiffer, 1861) accepted as Levantina kurdistana (L. Pfeiffer, 1861) (superseded generic combination)
        » Variety Helix (Levantina) kurdistana var. dohrni Kobelt, 1902 accepted as Levantina longinqua (Schütt & Subai, 1996) (preoccupied name, non Helix dohrni Paulucci, 1882)
      » Species Helix (Levantina) praecellens Naegele, 1901 accepted as Amanica praecellens (Naegele, 1901) (basionym)
      » Species Helix (Levantina) ramlensis Rolle in Kobelt, 1895 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
      » Species Helix (Levantina) transjordanica Kobelt, 1896 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
      » Species Helix (Levantina) werneri Kobelt, 1889 accepted as Levantina caesareana (Mousson, 1854) (junior synonym)
    » Subgenus Helix (Macrocyclis) Beck, 1837 accepted as Macrocyclis H. Beck, 1837
    » Subgenus Helix (Macularia) Albers, 1850 accepted as Macularia Albers, 1850
      » Species Helix (Macularia) bohemica O. Boettger, 1870 † accepted as Megalotachea macrocheila (Reuss in Reuss & Meyer, 1849) † (junior synonym)
      » Species Helix (Macularia) caesareana Mousson, 1864 accepted as Levantina caesareana (Mousson, 1854)
      » Species Helix (Macularia) eckingensis F. Sandberger, 1875 † accepted as Cepaea eckingensis (F. Sandberger, 1875) † (new combination)
      » Species Helix (Macularia) majoris De Stefani, 1880 † accepted as Murella (Opica) majoris (De Stefani, 1880) † (new combination)
      » Species Helix (Macularia) ogdeni Kennard & Woodward, 1914 † accepted as Allognathus (Iberellus) ogdeni (Kennard & Woodward, 1914) † (new combination)
      » Species Helix (Macularia) ogerieni Delafond & Depéret, 1893 † accepted as Frechenia ogerieni (Delafond & Depéret, 1893) † (new combination)
      » Species Helix (Macularia) platychelodes F. Sandberger, 1875 † accepted as Palaeotachea sylvestrina (Schlotheim, 1820) † (junior synonym)
      » Species Helix (Macularia) pliobraidensis Sacco, 1889 † accepted as Schlickumia bottinii (Sacco, 1884) † (junior synonym)
      » Species Helix (Macularia) renevieri Maillard, 1892 † accepted as Palaeotachea renevieri (Maillard, 1892) † (new combination)
      » Species Helix (Macularia) torresi Roman, 1907 † accepted as Pseudotachea torresi (Roman, 1907) † (new combination)
      » Species Helix (Macularia) vermiculata O.F. Müller, 1774 accepted as Massylaea vermiculata (O. F. Müller, 1774)
    » Subgenus Helix (Mesodon) A. Férussac, 1821 accepted as Mesodon A. Férussac, 1821
    » Subgenus Helix (Metodontia) Möllendorff, 1886 accepted as Metodontia Möllendorff, 1886 (original rank)
    » Subgenus Helix (Microcystis) Beck, 1837 accepted as Microcystis H. Beck, 1837
      » Species Helix (Microcystis) catletti Brazier, 1872 accepted as Innesoconcha catletti (Brazier, 1872) (original combination)
    » Subgenus Helix (Mitra) Albers, 1850 accepted as Lampadia Albers, 1854 (invalid: junior homonym of Mitra Lamarck, 1798; Lampadia is a replacement name)
    » Subgenus Helix (Moellendorffia) Ancey, 1887 accepted as Moellendorffia Ancey, 1887
      » Species Helix (Moellendorffia) callitricha Bavay & Dautzenberg, 1899 accepted as Moellendorffia eastlakeana (Möllendorff, 1882) (junior synonym)
      » Species Helix (Moellendorffia) depressispira Bavay & Dautzenberg, 1909 accepted as Moellendorffia depressispira (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Moellendorffia) loxotata Mabille, 1887 accepted as Moellendorffia loxotata (Mabille, 1887)
      » Species Helix (Moellendorffia) messageri Bavay & Dautzenberg, 1899 accepted as Moellendorffia messageri (Bavay & Dautzenberg, 1899) (original combination)
      » Species Helix (Moellendorffia) spurca Bavay & Dautzenberg, 1899 accepted as Moellendorffia spurca spurca (Bavay & Dautzenberg, 1899) (original combination)
    » Subgenus Helix (Monomphalus) Ancey, 1882 accepted as Monomphalus Ancey, 1882 (original rank)
    » Subgenus Helix (Mycena) Albers, 1850 accepted as Hemicycla Swainson, 1840 (objective junior synonym )
    » Subgenus Helix (Nanina) Gray, 1834 accepted as Nanina Gray, 1834 (superseded combination)
      » Species Helix (Nanina) caesia L. Pfeiffer, 1861 (taxon inquirendum)
      » Species Helix (Nanina) cleamesi E. A. Smith, 1882 accepted as Kalidos cleamesi (E. A. Smith, 1882) (original combination)
      » Species Helix (Nanina) nitidissima E. A. Smith, 1885 accepted as Orpiella nitidissima (E. A. Smith, 1885) (original combination)
      » Species Helix (Nanina) nyassana E. A. Smith, 1881 accepted as Thapsia nyassana (E. A. Smith, 1881) (original combination)
      » Species Helix (Nanina) scorpio Gould, 1846 accepted as Orpiella scorpio (Gould, 1846) (original combination)
      » Species Helix (Nanina) solidiuscula E. A. Smith, 1885 accepted as Orpiella solidiuscula (E. A. Smith, 1885) (original combination)
    » Subgenus Helix (Obba) Beck, 1837 accepted as Obba H. Beck, 1837
      » Species Helix (Obba) goldiei Brazier, 1884 accepted as Meliobba goldiei (Brazier, 1884) (original combination)
      » Species Helix (Obba) hyperbolica F. Sandberger, 1870 † accepted as Dentellocaracolus hyperbolica (F. Sandberger, 1870) † (new combination)
      » Species Helix (Obba) langsonensis Bavay & Dautzenberg, 1899 accepted as Neocepolis merarcha (Mabille, 1888) (junior synonym)
      » Species Helix (Obba) oxystoma E. A. Smith, 1883 accepted as Meliobba goldiei (Brazier, 1884) (invalid: junior homonym of Helix oxystoma Thomae, 1845)
    » Subgenus Helix (Obbinula) Stache, 1889 † accepted as Obbinula Stache, 1889 †
    » Subgenus Helix (Omalonyx) d'Orbigny, 1838 accepted as Omalonyx d'Orbigny, 1838 (original rank)
    » Subgenus Helix (Ophiogyra) Albers, 1850 accepted as Polygyratia Gray, 1847 (objective junior synonym)
    » Subgenus Helix (Pachya) Albers, 1850 accepted as Pachya Albers, 1850 (original rank)
    » Subgenus Helix (Pachystoma) Albers, 1850 accepted as Thelidomus Swainson, 1840 (unaccepted, Invalid: junior homonym of Pachystoma Guilding, 1828 [Ampullariidae].)
    » Subgenus Helix (Papuina) Martens, 1860 accepted as Papuina E. von Martens, 1860 (unaccepted)
      » Species Helix (Papuina) albocarinata E. A. Smith, 1887 accepted as Rhynchotrochus albocarinatus (E. A. Smith, 1887) (original combination)
      » Species Helix (Papuina) amphizona Pilsbry, 1891 accepted as Papustyla chancei (Cox, 1870) (junior synonym)
      » Species Helix (Papuina) demangei Dautzenberg & Fischer, 1907 accepted as Ganesella demangei (Dautzenberg & Fischer, 1907) (original combination)
      » Species Helix (Papuina) lintschuana Kobelt, 1894 accepted as Meliobba lintschuana (Kobelt, 1894) (original combination)
      » Species Helix (Papuina) phaeostoma Martens, 1878 accepted as Megalacron phaeostoma (Pfeiffer, 1877)
      » Species Helix (Papuina) rollsiana E. A. Smith, 1887 accepted as Rhynchotrochus rollsianus (E. A. Smith, 1887) (original combination)
      » Species Helix (Papuina) roseolabiata E. A. Smith, 1887 accepted as Rhynchotrochus strabo (Brazier, 1876) (junior synonym)
      » Species Helix (Papuina) walleri Brazier, 1883 accepted as Papuina walleri (Brazier, 1883) (original combination)
    » Subgenus Helix (Parachloraea) Sandberger, 1873 † accepted as Parachloraea Sandberger, 1873 † (unaccepted, considered a separate genus)
    » Subgenus Helix (Pararhytida) Ancey, 1882 accepted as Pararhytida Ancey, 1882 (unaccepted, original rank)
    » Subgenus Helix (Parthena) Albers, 1850 accepted as Parthena Albers, 1850 (unaccepted, original rank)
    » Subgenus Helix (Paryphanta) Albers, 1850 accepted as Paryphanta Albers, 1850 (unaccepted, original rank)
    » Subgenus Helix (Patula) Held, 1837 accepted as Discus Fitzinger, 1833 (unaccepted)
      » Species Helix (Patula) cryophila E. v. Martens, 1865 accepted as Paralaoma servilis (Shuttleworth, 1852) (junior synonym)
      » Species Helix (Patula) depressa A. Adams, 1868 accepted as Discus pauper (Gould, 1859) (junior synonym)
      » Species Helix (Patula) dubitans Legrand, 1871 accepted as Tasmaphena ruga (Legrand, 1871) (junior synonym)
      » Species Helix (Patula) falcifera O. Boettger, 1870 † accepted as Pleurodiscoides (Pleurodiscoides) falcifera (O. Boettger, 1870) † (new combination)
      » Species Helix (Patula) margatensis Legrand, 1871 accepted as Tasmaphena ruga (Legrand, 1871) (junior synonym)
      » Species Helix (Patula) paludinaeformis (Sandberger, 1858) † accepted as Acanthinula paludinaeformis (Sandberger, 1858) † (new combination)
      » Species Helix (Patula) recurrecta Oppenheim, 1890 † accepted as Pyramidula recurrecta (Oppenheim, 1890) † (new combination)
      » Species Helix (Patula) saucatsensis Benoist, 1873 † accepted as Discus saucatsensis (Benoist, 1873) † (new combination)
      » Species Helix (Patula) sepulta White, 1880 † accepted as Patula whitei Wenz, 1919 † (junior homonym of Helix sepulta Michelotti, 1840; Patula whitei is a replacement name)
      » Species Helix (Patula) somersetensis Melvill & Ponsonby, 1893 accepted as Trachycystis somersetensis (Melvill & Ponsonby, 1893) (original combination)
      » Species Helix (Patula) spaldingi Brazier, 1876 accepted as Torresiropa spaldingi (Brazier, 1876) (original combination)
        » Variety Helix (Patula) spaldingi var. carinata Brazier, 1880 accepted as Torresiropa spaldingi (Brazier, 1876) (invalid: junior homonym of Helix carinata Montagu, 1803; Torresiropa mella Iredale, 1933 is a replacement name)
      » Species Helix (Patula) subteres Clessin, 1877 † accepted as Lucilla subteres (Clessin, 1877) † (new combination)
      » Species Helix (Patula) unwini Brazier, 1889 accepted as Hawaiia minuscula (Binney, 1841) (junior synonym)
      » Species Helix (Patula) vexanda Legrand, 1871 accepted as Tasmaphena ruga (Legrand, 1871) (junior synonym)
      » Species Helix (Patula) viridescens Melvill & Ponsonby, 1891 accepted as Natella viridescens (Melvill & Ponsonby, 1891) (basionym)
    » Subgenus Helix (Pella) E. von Martens, 1860 accepted as Trachycystis Pilsbry, 1893 (unaccepted, synonym)
      » Species Helix (Pella) actinotrichia Melvill & Ponsonby, 1892 accepted as Chilocystis actinotrichia (Melvill & Ponsonby, 1892) (original combination)
      » Species Helix (Pella) bathycoele Melvill & Ponsonby, 1892 accepted as Trachycystis bathycoele (Melvill & Ponsonby, 1892) (original combination)
      » Species Helix (Pella) burnupi Melvill & Ponsonby, 1892 accepted as Chalcocystis burnupi (Melvill & Ponsonby, 1892) (original combination)
      » Species Helix (Pella) conisalea Melvill & Ponsonby, 1892 accepted as Chilocystis conisalea (Melvill & Ponsonby, 1892) (original combination)
      » Species Helix (Pella) crawfordi Melvill & Ponsonby, 1890 accepted as Sheldonia crawfordi (Melvill & Ponsonby, 1890) (original combination)
      » Species Helix (Pella) epetrima Melvill & Ponsonby, 1892 accepted as Phaulocystis turmalis (Morelet, 1889) (synonym)
      » Species Helix (Pella) erateina Melvill & Ponsonby, 1892 accepted as Lyrocystis prionacis (Benson, 1864) (synonym)
      » Species Helix (Pella) liricostata Melvill & Ponsonby, 1891 accepted as Trachycystis liricostata (Melvill & Ponsonby, 1891) (original combination)
      » Species Helix (Pella) lygaea Melvill & Ponsonby, 1892 accepted as Chilocystis lygaea (Melvill & Ponsonby, 1892) (original combination)
      » Species Helix (Pella) minythodes Melvill & Ponsonby, 1892 accepted as Sheldonia crawfordi (Melvill & Ponsonby, 1890) (synonym)
      » Species Helix (Pella) namaquana E. von Martens, 1889 accepted as Xerocystis capensis var. namaquana (E. von Martens, 1889) (original combination)
      » Species Helix (Pella) rhysodes Melvill & Ponsonby, 1892 accepted as Lyrocystis perplicata (Benson, 1851) (synonym)
      » Species Helix (Pella) strobilodes Melvill & Ponsonby, 1893 accepted as Chilocystis trichosteiroma (Melvill & Ponsonby, 1892) (synonym)
      » Species Helix (Pella) trichosteiroma Melvill & Ponsonby, 1892 accepted as Chilocystis trichosteiroma (Melvill & Ponsonby, 1892) (original combination)
      » Species Helix (Pella) turguriolum Melvill & Ponsonby, 1892 accepted as Trachycystis (Trachycystis) tollini (Benson, 1856) (synonym)
    » Subgenus Helix (Phaedra) Albers, 1850 accepted as Hemitrochus Swainson, 1840 (unaccepted, Invalid: junior homonym of Phaedra Horsfield, 1829 [Lepidoptera])
    » Subgenus Helix (Phania) E. von Martens, 1860 accepted as Pyrochilus Pilsbry, 1893 (unaccepted)
      » Species Helix (Phania) dugasti Morlet, 1892 accepted as Camaena dugasti (Morlet, 1892) (original combination)
      » Species Helix (Phania) kuekenthali Kobelt, 1895 accepted as Pyrochilus kuekenthali (Kobelt, 1895) (basionym)
    » Subgenus Helix (Phasis) Albers, 1850 accepted as Phortion Preston, 1910 (unaccepted, junior synonym)
      » Species Helix (Phasis) meruensis D'Ailly, 1910 accepted as Halolimnohelix meruensis (D'Ailly, 1910) (original combination)
    » Subgenus Helix (Philina) Albers, 1850 accepted as Obba H. Beck, 1837 (unaccepted, junior synonym)
    » Subgenus Helix (Physospira) C.R. Boettger, 1914 accepted as Helix Linnaeus, 1758 (unaccepted)
    » Subgenus Helix (Pileolus) Lesson, 1831 accepted as Megalacron I. Rensch, 1934 (unaccepted, Invalid: junior homonym of Pileolus G.B. Sowerby I, 1823)
      » Species Helix (Pileolus) tuffetti Lesson, 1831 accepted as Helicostyla coniformis Férussac, 1821 (junior synonym)
    » Subgenus Helix (Pitys) Mörch, 1852 accepted as Pitys Mörch, 1852 (unaccepted)
      » Species Helix (Pitys) architectonica Legrand, 1871 accepted as Archiropa architectonica (Legrand, 1871) (original combination)
      » Species Helix (Pitys) assimilis Legrand, 1871 accepted as Diemenoropa kingstonensis (Legrand, 1871) (junior synonym)
      » Species Helix (Pitys) gunnii Brazier, 1877 accepted as Diemenoropa kingstonensis (Legrand, 1871) (invalid: unnecessary replacement name for Helix assimilis Legrand, 1871)
      » Species Helix (Pitys) petterdi Legrand, 1871 accepted as Exquisitiropa agnewi (Legrand, 1871) (junior synonym)
        » Subspecies Helix (Pitys) petterdi peroni Legrand, 1871 accepted as Exquisitiropa agnewi (Legrand, 1871) (junior synonym)
    » Subgenus Helix (Planispira) Beck, 1837 accepted as Planispira H. Beck, 1837 (unaccepted, original rank)
    » Subgenus Helix (Plectopylis) Benson, 1860 accepted as Plectopylis Benson, 1860 (unaccepted, original rank)
      » Species Helix (Plectopylis) andersoni W. Blanford, 1869 accepted as Hunyadiscus andersoni (W. Blanford, 1869) (basionym)
      » Species Helix (Plectopylis) brachyplecta Benson, 1863 accepted as Chersaecia brachyplecta (Benson, 1863) (original combination)
      » Species Helix (Plectopylis) brahma Godwin-Austen, 1879 accepted as Endothyrella brahma (Godwin-Austen, 1879) (basionym)
      » Species Helix (Plectopylis) feddeni Blanford, 1865 accepted as Chersaecia feddeni (Blanford, 1865) (original combination)
      » Species Helix (Plectopylis) francoisi H. Fischer, 1899 accepted as Plectopylis francoisi H. Fischer, 1899 (entry in volume index, p. 346)
      » Species Helix (Plectopylis) fultoni Godwin-Austen, 1892 accepted as Endothyrella fultoni (Godwin-Austen, 1892) (basionym)
      » Species Helix (Plectopylis) karenorum W. Blanford, 1865 accepted as Plectopylis karenorum (W. Blanford, 1865) (original combination)
      » Species Helix (Plectopylis) leiophis Benson, 1860 accepted as Chersaecia leiophis (Benson, 1860) (basionym)
      » Species Helix (Plectopylis) macromphalus W. Blanford, 1870 accepted as Endothyrella macromphalus (W. Blanford, 1870) (basionym)
      » Species Helix (Plectopylis) minor Godwin-Austen, 1879 accepted as Endothyrella minor (Godwin-Austen, 1879)
      » Species Helix (Plectopylis) nagaensis Godwin-Austen, 1875 accepted as Chersaecia nagaensis nagaensis (Gude, 1897) (original combination)
      » Species Helix (Plectopylis) oglei Godwin-Austen, 1879 accepted as Endothyrella oglei (Godwin-Austen, 1879) (basionym)
      » Species Helix (Plectopylis) perarcta Blanford, 1865 accepted as Chersaecia perarcta perarcta (Blanford, 1865) (original combination)
      » Species Helix (Plectopylis) ponsonbyi Godwin-Austen, 1888 accepted as Chersaecia feddeni (Blanford, 1865) (junior synonym)
      » Species Helix (Plectopylis) refuga (Gould, 1846) accepted as Chersaecia refuga Gould, 1846 (original combination)
        » Variety Helix (Plectopylis) refuga var. dextrorsa Benson, 1860 accepted as Chersaecia dextrorsa (Benson, 1860) (original combination)
      » Species Helix (Plectopylis) schlumbergeri Morlet, 1886 accepted as Halongella schlumbergeri (Morlet, 1886) (basionym)
      » Species Helix (Plectopylis) serica Godwin-Austen, 1875 accepted as Endothyrella serica (Godwin-Austen, 1875) (basionym)
      » Species Helix (Plectopylis) shiroiensis Godwin-Austen, 1875 accepted as Chersaecia shiroiensis shiroiensis (Godwin-Austen, 1875) (original combination)
      » Species Helix (Plectopylis) trilamellaris Godwin-Austen, 1875 accepted as Chersaecia shanensis (Stoliczka, 1873) (junior synonym)
    » Subgenus Helix (Plectotropis) Martens, 1860 accepted as Plectotropis E. von Martens, 1860 (unaccepted)
      » Species Helix (Plectotropis) albocrenatus Bavay & Dautzenberg, 1909 accepted as Plectotropis albocrenatus (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Plectotropis) bonnieri H. Fischer, 1898 accepted as Plectotropis bonnieri (H. Fischer, 1898) (original combination)
      » Species Helix (Plectotropis) chaudroni Bavay & Dautzenberg, 1909 accepted as Plectotropis chaudroni (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Plectotropis) conella A. Adams, 1868 accepted as Aegista (Plectotropis) conella (A. Adams, 1868) (original combination)
      » Species Helix (Plectotropis) couturieri Bavay & Dautzenberg, 1909 accepted as Plectotropis couturieri (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Plectotropis) dasytricha Bavay & Dautzenberg, 1909 accepted as Plectotropis dasytricha (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Plectotropis) fulvicans H. Adams, 1866 accepted as Aegista fulvicans (H. Adams, 1866) (original combination)
      » Species Helix (Plectotropis) gitaena Bavay & Dautzenberg, 1909 accepted as Plectotropis gitaena (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Plectotropis) howardi Angas, 1869 accepted as Contramelon howardi (Angas, 1869) (original combination)
      » Species Helix (Plectotropis) hyperteleia Morlet, 1892 accepted as Plectotropis hyperteleia (Morlet, 1892) (original combination)
      » Species Helix (Plectotropis) pseudotrochula Bavay & Dautzenberg, 1909 accepted as Plectotropis pseudotrochula (Bavay & Dautzenberg, 1909) (original combination)
      » Species Helix (Plectotropis) scabricula A. Adams, 1868 accepted as Plectotropis scabricula (A. Adams, 1868) (original combination)
      » Species Helix (Plectotropis) setocincta A. Adams, 1868 accepted as Aegista (Plectotropis) setocincta (A. Adams, 1868) (original combination)
      » Species Helix (Plectotropis) trochula A. Adams, 1868 accepted as Neoaegista trochula (A. Adams, 1868) (original combination)
      » Species Helix (Plectotropis) xydaea Bavay & Dautzenberg, 1909 accepted as Plectotropis xydaea (Bavay & Dautzenberg, 1909) (original combination)
    » Subgenus Helix (Poecilostola) Ancey, 1886 accepted as Epiphragmophora (Pilsbrya) Ancey, 1887 (unaccepted, invalid: junior homonym of Poecilostola Schiner, 1863 [Diptera]; Pilsbrya is a replacement name)
    » Subgenus Helix (Polygyra) Say, 1818 accepted as Polygyra Say, 1818 (unaccepted)
    » Subgenus Helix (Prothelidomus) Oppenheim, 1890 † accepted as Dentellocaracolus (Prothelidomus) Oppenheim, 1890 † (unaccepted)
    » Subgenus Helix (Pseudotachea) C.R. Boettger, 1909 accepted as Pseudotachea C.R. Boettger, 1909 (unaccepted)
    » Subgenus Helix (Pyramidula) Fitzinger, 1833 accepted as Pyramidula Fitzinger, 1833 (unaccepted)
    » Subgenus Helix (Rhagada) Albers, 1860 accepted as Rhagada Albers, 1860 (unaccepted)
      » Species Helix (Rhagada) bordaensis Angas, 1880 accepted as Glyptorhagada bordaensis (Angas, 1880) (original combination)
      » Species Helix (Rhagada) floresiana Martens, 1891 accepted as Rhagada floresiana (Martens, 1891) (original combination)
      » Species Helix (Rhagada) inconvicta E. A. Smith, 1894 accepted as Westraltrachia oscarensis (Cox, 1892) (junior synonym)
      » Species Helix (Rhagada) kooringensis Angas, 1877 accepted as Glyptorhagada kooringensis (Angas, 1877) (original combination)
      » Species Helix (Rhagada) silveri Angas, 1868 accepted as Glyptorhagada silveri (Angas, 1868) (original combination)
    » Subgenus Helix (Rhytida) Albers, 1860 accepted as Rhytida Albers, 1860 (unaccepted, original rank)
      » Species Helix (Rhytida) balli Brazier, 1889 accepted as Pseudocharopa ledgbirdi (Brazier, 1889) (junior synonym)
      » Species Helix (Rhytida) beddomei Brazier, 1876 accepted as Murphitella franklandiensis (Forbes, 1852) (junior synonym)
      » Species Helix (Rhytida) hobsoni Brazier, 1876 accepted as Macrodelos hobsoni (Brazier, 1876) (original combination)
      » Species Helix (Rhytida) jamesi Brazier, 1876 accepted as Murphitella franklandiensis (Forbes, 1852) (junior synonym)
      » Species Helix (Rhytida) ledgbirdi Brazier, 1889 accepted as Pseudocharopa ledgbirdi (Brazier, 1889) (original combination)
      » Species Helix (Rhytida) sheridani Brazier, 1875 accepted as Limesta sheridani (Brazier, 1875) (original combination)
      » Species Helix (Rhytida) whiteleggei Brazier, 1889 accepted as Pseudocharopa whiteleggei (Brazier, 1889) (original combination)
    » Subgenus Helix (Rotula) Albers, 1850 accepted as Harmogenanina Germain, 1918 (unaccepted, invalid: junior homonym of Rotula Schumacher, 1817 [Echinodermata]; Cycliscus and Harmogenanina are replacement names)
    » Subgenus Helix (Sagdellina) Cossmann, 1889 † accepted as Sagdellina Cossmann, 1889 † (unaccepted)
    » Subgenus Helix (Satsuma) A. Adams, 1868 accepted as Satsuma A. Adams, 1868 (unaccepted, original rank)
      » Species Helix (Satsuma) albida H. Adams, 1870 accepted as Satsuma albida (H. Adams, 1870) (original combination)
    » Subgenus Helix (Sculptaria) L. Pfeiffer, 1855 accepted as Sculptaria L. Pfeiffer, 1855 (unaccepted, distinct genus)
    » Subgenus Helix (Sesara) Albers, 1860 accepted as Sesara Albers, 1860 (unaccepted, original rank)
    » Subgenus Helix (Sivella) W.T. Blanford, 1863 accepted as Sivella W.T. Blanford, 1863 (unaccepted)
      » Species Helix (Sivella) percompressa Blanford, 1869 accepted as Trochomorpha percompressa (Blanford, 1869) (original combination)
    » Subgenus Helix (Sophina) W. H. Benson, 1859 accepted as Sophina W. H. Benson, 1859 (unaccepted, original rank)
    » Subgenus Helix (Stenotrema) Rafinesque, 1819 accepted as Stenotrema Rafinesque, 1819 (unaccepted)
    » Subgenus Helix (Sterna) Albers, 1850 accepted as Elona H. Adams & A. Adams, 1855 (unaccepted, Invalid: junior homonym of Sterna Linnaeus, 1758 [Aves])
    » Subgenus Helix (Streptaxis) Gray, 1837 accepted as Streptaxis Gray, 1837 (unaccepted, original combination)
    » Subgenus Helix (Systenostoma) Bavay & Dautzenberg, 1909 accepted as Systenostoma Bavay & Dautzenberg, 1909 (unaccepted, original rank)
    » Subgenus Helix (Tachea) W. Turton, 1831 accepted as Cepaea Held, 1838 (unaccepted, Invalid: junior homonym of Tachea Fleming, 1822 [Aves])
    » Subgenus Helix (Tacheocampylaea) L. Pfeiffer, 1877 accepted as Tacheocampylaea L. Pfeiffer, 1877 (unaccepted, original rank)
    » Subgenus Helix (Thalassia) Martens, 1860 accepted as Nitor Gude, 1911 (unaccepted, Invalid: junior homonym of Thalassia Dejean, 1835 [Coleoptera] and Thalassia Bonaparte, 1856 [Aves])
    » Subgenus Helix (Thea) Albers, 1850 accepted as Plectotropis E. von Martens, 1860 (unaccepted, Invalid: junior homonym of Thea Mulsant, 1846 [Coleoptera]; Plectotropis is a replacement name)
    » Subgenus Helix (Theba) Risso, 1826 accepted as Theba Risso, 1826 (unaccepted)
      » Species Helix (Theba) caucasicola Lindholm, 1913 accepted as Kokotschashvilia caucasicola (Lindholm, 1913) (original combination)
      » Species Helix (Theba) selecta Klika, 1894 accepted as Stenomphalia selecta (Klika, 1894) (original combination, replacement name for Helix globula Kaleniczenko, 1853 non Helix globula Lea, 1837)
      » Species Helix (Theba) subcarthusiana Lindholm, 1913 accepted as Monacha subcarthusiana (Lindholm, 1913)
      » Species Helix (Theba) tschorochensis Lindholm, 1913 accepted as Stenomphalia selecta (Klika, 1894) (a junior synonym)
    » Subgenus Helix (Trachia) E. von Martens, 1860 accepted as Trachia E. von Martens, 1860 (unaccepted, original combination)
      » Species Helix (Trachia) bathurstensis E.A. Smith, 1894 accepted as Torresitrachia bathurstensis (E. A. Smith, 1894) (original combination)
      » Species Helix (Trachia) catostoma Blanford, 1869 accepted as Aegista catostoma (Blanford, 1869) (original combination)
      » Species Helix (Trachia) derbyana E. A. Smith, 1894 accepted as Westraltrachia derbyi (Cox, 1892) (junior synonym)
      » Species Helix (Trachia) endeavourensis Brazier, 1872 accepted as Torresitrachia torresiana (Hombron & Jacquinot, 1841) (junior synonym)
      » Species Helix (Trachia) gascoynensis E. A. Smith, 1894 accepted as Plectorhagada gascoynensis (E. A. Smith, 1894) (original combination)
      » Species Helix (Trachia) ihliana Babor, 1897 † accepted as Pseudochloritis robusta (Reuss in Reuss & Meyer, 1849) † (junior synonym)
      » Species Helix (Trachia) malayana Möllendorff, 1887 accepted as Trichochloritis breviseta (L. Pfeiffer, 1862) (junior synonym)
    » Subgenus Helix (Trachycystis) Pilsbry, 1893 accepted as Trachycystis Pilsbry, 1893 (unaccepted)
    » Subgenus Helix (Trichia) Hartmann, 1840 accepted as Trochulus Chemnitz, 1786 (unaccepted, Invalid: junior homonym of Trichia De Haan, 1839 [Crustacea].)
    » Subgenus Helix (Trigonostoma) Fitzinger, 1833 accepted as Helicodonta A. Férussac, 1821 (unaccepted, Invalid: Junior homonym of Trigonostoma Blainville, 1825 [Cancellariidae]; also a junior objective synonym of Helicodonta)
    » Subgenus Helix (Trochomorpha) Albers, 1850 accepted as Trochomorpha Albers, 1850 (unaccepted, original rank)
      » Species Helix (Trochomorpha) deiopeia Angas, 1869 accepted as Trochomorpha deiopeia (Angas, 1869) (basionym)
      » Species Helix (Trochomorpha) eudora Angas, 1869 accepted as Trochomorpha zenobia (L. Pfeiffer, 1863) (junior synonym)
      » Species Helix (Trochomorpha) juanita Angas, 1873 accepted as Trochomorpha juanita (Angas, 1873) (original combination)
      » Species Helix (Trochomorpha) sanctaeannae E. A. Smith, 1885 accepted as Trochomorpha sanctaeannae (E. A. Smith, 1885) (original combination)
    » Subgenus Helix (Trochonanina) Mousson, 1869 accepted as Trochonanina Mousson, 1869 (unaccepted, superseded combination)
    » Subgenus Helix (Trochozonites) Pfeffer, 1883 accepted as Trochozonites Pfeffer, 1883 (unaccepted, distinct genus)
    » Subgenus Helix (Ulostoma) Albers, 1850 accepted as Polygyra Say, 1818 (unaccepted, objective junior synonym)
    » Subgenus Helix (Vallonia) Risso, 1826 accepted as Vallonia Risso, 1826 (unaccepted)
      » Species Helix (Vallonia) brochoni Degrange-Touzin, 1892 † accepted as Vallonia brochoni (Degrange-Touzin, 1892) †
      » Species Helix (Vallonia) girauxae Cossmann, 1902 † accepted as Vallonia girauxae (Cossmann, 1902) †
      » Species Helix (Vallonia) ladacensis Nevill, 1878 accepted as Vallonia ladacensis (Nevill, 1878) (original combination)
      » Species Helix (Vallonia) subcostata Clessin, 1912 † accepted as Vallonia subcyclophorella (Gottschick, 1911) † (junior synonym)
      » Species Helix (Vallonia) subcyclophorella Gottschick, 1911 † accepted as Vallonia subcyclophorella (Gottschick, 1911) †
      » Species Helix (Vallonia) subpulchella F. Sandberger, 1872 † accepted as Vallonia lepida (Reuss in Reuss & Meyer, 1849) † (junior synonym)
    » Subgenus Helix (Videna) H. Adams & A. Adams, 1855 accepted as Videna H. Adams & A. Adams, 1855 (unaccepted)
      » Species Helix (Videna) bonneti Cossmann, 1902 † accepted as Discus bonneti (Cossmann, 1902) † (new combination)
      » Species Helix (Videna) margaritae Cossmann, 1902 † accepted as Discus margaritae (Cossmann, 1902) † (new combination)
      » Species Helix (Videna) quaestiosa Legrand, 1871 accepted as Tasmaphena sinclairi (L. Pfeiffer, 1845) (junior synonym)
      » Species Helix (Videna) ruga Legrand, 1871 accepted as Tasmaphena ruga (Legrand, 1871) (original combination)
    » Subgenus Helix (Xanthomelon) Martens, 1860 accepted as Xanthomelon E. von Martens, 1860 (unaccepted)
    » Subgenus Helix (Xerophila) Held, 1838 accepted as Theba Risso, 1826 (unaccepted)
      » Species Helix (Xerophila) hierocontina Westerlund, 1889 accepted as Xerocrassa langloisiana (Bourguignat, 1853) (junior synonym)
      » Species Helix (Xerophila) joppensis Schmidt, 1855 accepted as Xeropicta krynickii (Andrzejowski in Krynicki, 1833)
        » Forma Helix (Xerophila) joppensis f. minor O. Boettger, 1883 accepted as Xeropicta krynickii (Andrzejowski in Krynicki, 1833) (junior synonym)
        » Variety Helix (Xerophila) joppensis var. subkrynickii Germain, 1921 accepted as Xeropicta krynickii (Andrzejowski in Krynicki, 1833) (unjustified emendation for Helix joppensis var. subkrynickiana)
      » Species Helix (Xerophila) phrygostriata Oppenheim, 1919 † accepted as Helicopsis phrygostriata (Oppenheim, 1919) † (new combination)
      » Species Helix (Xerophila) subconspurcata F. Sandberger, 1875 † accepted as Pseudoxerotricha subconspurcata (F. Sandberger, 1875) † (new combination)
      » Species Helix (Xerophila) vestalis L. Pfeiffer, 1841 accepted as Xeropicta krynickii (Andrzejowski in Krynicki, 1833)
    » Subgenus Helix (Xesta) Albers, 1850 accepted as Xesta Albers, 1850 (unaccepted)
    » Subgenus Helix (Zenobia) Gray, 1821 accepted as Zenobiella Gude & B.B. Woodward, 1921 (unaccepted)
    » Subgenus Helix (Zonites) Montfort, 1810 accepted as Zonites Montfort, 1810 (unaccepted, considered a separate genus)
    » Species Helix aberrata Souleyet, 1852 accepted as Perrottetia aberrata (Souleyet, 1852) (unaccepted, original combination)
    » Species Helix abjecta R. T. Lowe, 1831 accepted as Caseolus abjectus (R. T. Lowe, 1831) (unaccepted)
      » Subspecies Helix abjecta nesiotes Wollaston, 1878 accepted as Caseolus (Caseolus) abjectus nesiotes (Wollaston, 1878) (original combination)
    » Species Helix abrettensis Fontannes, 1876 † accepted as Tropidomphalus (Pseudochloritis) abrettensis (Fontannes, 1876) † (unaccepted, new combination)
    » Species Helix abrochroa Crosse, 1868 accepted as Trochomorpha abrochroa (Crosse, 1868) (unaccepted, original combination)
    » Species Helix abyssorum d'Orbigny, 1835 accepted as Drymaeus abyssorum (d'Orbigny, 1835) (unaccepted, original combination)
    » Species Helix acalles Pfeiffer, 1857 accepted as Euplecta acalles (Pfeiffer, 1857) (unaccepted, original combination)
    » Species Helix acanthinula Crosse, 1868 accepted as Acanthoptyx acanthinula (Crosse, 1868) (unaccepted, original combination)
    » Species Helix acetabulum Pease, 1861 accepted as Nesodiscus obolus (Gould, 1846) (unaccepted, junior synonym)
    » Species Helix achates Rossmässler, 1835 accepted as Chilostoma achates (Rossmässler, 1835) (unaccepted, original combination)
    » Species Helix achatina L. Pfeiffer, 1845 accepted as Plectopylis repercussa (Gould, 1856) (unaccepted, synonym)
    » Species Helix acmella L. Pfeiffer, 1860 accepted as Papuina meta (L. Pfeiffer, 1856) (unaccepted, junior synonym)
    » Species Helix acris Benson, 1859 accepted as Ganesella acris (Benson, 1859) (unaccepted, original combination)
    » Species Helix actinophora R. T. Lowe, 1831 accepted as Actinella (Actinella) actinophora actinophora (R. T. Lowe, 1831) (unaccepted, original combination)
    » Species Helix acuducta Benson, 1850 accepted as Euplecta acuducta (Benson, 1850) (unaccepted, original combination)
    » Species Helix acuta O. F. Müller, 1774 accepted as Cochlicella acuta (O. F. Müller, 1774) (unaccepted, original combination)
    » Species Helix acuta Lamarck, 1816 accepted as Lucerna lamarckii (Férussac, 1821) (unaccepted, invalid: junior homonym of Helix acuta O.F. Müller, 1774)
    » Species Helix adamnis Dall, 1890 † accepted as Linisa adamnis (Dall, 1890) † (unaccepted, new combination)
    » Species Helix adansoniae Morelet, 1848 accepted as Trochozonites adansoniae (Morelet, 1848) (unaccepted, original combination)
    » Species Helix adolfi L. Pfeiffer, 1854 accepted as Xerosecta adolfi (L. Pfeiffer, 1854) (unaccepted, original combination)
    » Species Helix adornata Noulet, 1867 † accepted as Parachloraea adornata (Noulet, 1867) † (unaccepted, new combination)
    » Species Helix aecouria Letourneux & Bourguignat, 1887 accepted as Massylaea vermiculata (O. F. Müller, 1774) (unaccepted, junior synonym)
    » Species Helix aemula L. Pfeiffer, 1852 accepted as Kosicia ambrosi (Strobel, 1852) (unaccepted, junior synonym)
    » Species Helix aenea F. Krauss, 1848 accepted as Chalcocystis aenea (F. Krauss, 1848) (unaccepted, original combination)
    » Species Helix afra Gmelin, 1791 accepted as Pedipes pedipes (Bruguière, 1789) (unaccepted, synonym)
    » Species Helix africae A.D. Brown, 1865 accepted as Chilocystis africae (A.D. Brown, 1865) (unaccepted, original combination)
    » Species Helix aggiei Heimburg, 1890 accepted as Crystallopsis hunteri (Cox, 1872) (unaccepted, junior synonym)
    » Species Helix aigenensis Tausch, 1886 † accepted as Pseudostrobilus aigenensis (Tausch, 1886) † (unaccepted, new combination)
    » Species Helix alauda Férussac, 1821 accepted as Coryda alauda (Férussac, 1821) (unaccepted, original combination)
    » Species Helix albicostis Pfeiffer, 1860 accepted as Trachia albicostis (Pfeiffer, 1860) (unaccepted, original combination)
    » Species Helix albigensis Noulet, 1854 † accepted as Parachloraea albigensis (Noulet, 1854) † (unaccepted, new combination)
    » Species Helix albizonata Dohrn, 1858 accepted as Euplecta albizonata (Dohrn, 1858) (unaccepted, original combination)
    » Species Helix albumenoidea Cox, 1868 accepted as Echonitor albumenoideus (Cox, 1868) (unaccepted, original combination)
    » Species Helix alfredi Cox, 1871 accepted as Megalacron alfredi (Cox, 1871) (unaccepted, original combination)
      » Variety Helix alfredi var. trichroa Martens, 1881 accepted as Megalacron alfredi (Cox, 1871) (junior synonym)
    » Species Helix algira Linnaeus, 1758 accepted as Zonites algirus (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix algiroides Reuss in Reuss & Meyer, 1849 † accepted as Miozonites algiroides (Reuss in Reuss & Meyer, 1849) † (unaccepted, new combination)
    » Species Helix allasteri Cox, 1873 accepted as Crystallopsis hunteri (Cox, 1872) (unaccepted, junior synonym)
    » Species Helix allecta Cox, 1870 accepted as Sinployea allecta (Cox, 1870) (unaccepted, original combination)
    » Species Helix alloiodes Thomä, 1845 † accepted as Palaeotachea alloiodes (Thomä, 1845) † (unaccepted, new combination)
    » Species Helix alpha L. Pfeiffer, 1853 accepted as Aeschrodomus stipulatus [sic] (unaccepted)
    » Species Helix alphonsi Deshayes, 1870 accepted as Sinicola alphonsi (Deshayes, 1870) (unaccepted, original combination)
    » Species Helix alveolus Gassies, 1881 accepted as Andrefrancia alveolus (Gassies, 1881) (unaccepted, original combination)
    » Species Helix alveus Sandberger, 1875 † accepted as Agalactochilus inflexus (Zieten, 1832) † (unaccepted, new combination)
    » Species Helix amarula Linnaeus, 1758 accepted as Thiara amarula (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix amberti Michaud, 1855 † accepted as Apula amberti (Michaud, 1855) † (unaccepted, new combination)
    » Species Helix ambigua Linnaeus, 1758 accepted as Fossarus ambiguus (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix amblytropis F. Sandberger, 1872 † accepted as Dentellocaracolus amblytropis (F. Sandberger, 1872) † (unaccepted, new combination)
    » Species Helix amictella Mabille, 1889 accepted as Camaena choboensis (Mabille, 1889) (unaccepted, synonym)
    » Species Helix amphibulima Férussac, 1839 accepted as Helicophanta amphibulima (Férussac, 1839) (unaccepted, original combination)
    » Species Helix amphicora Mabille, 1888 accepted as Camaena amphicora (Mabille, 1888) (unaccepted, original combination)
    » Species Helix ampulla Benson, 1850 accepted as Indrella ampulla (Benson, 1850) (unaccepted, original combination)
    » Species Helix ampullacea Linnaeus, 1758 accepted as Pila ampullacea (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix anax Benson, 1865 accepted as Corilla anax (Benson, 1865) (unaccepted, original combination)
    » Species Helix andersoni Cox, 1872 accepted as Figuladra volgiola (Iredale, 1933) (unaccepted, invalid: junior homonym of Helix andersoni Blanford, 1869; F. volgiola is a replacement name)
    » Species Helix andersoni W. Blanford, 1869 accepted as Hunyadiscus andersoni (W. Blanford, 1869) (unaccepted, original combination)
    » Species Helix angasiana Newcomb, 1862 accepted as Quirosena bougainvillei (Pfeiffer, 1860) (unaccepted, junior synonym)
    » Species Helix angistoma Férussac, 1821 accepted as Caracolus carinatus (Röding, 1798) (unaccepted)
    » Species Helix anguina Gould, 1847 accepted as Plectopylis anguina (Gould, 1847) (unaccepted, original combination)
    » Species Helix annatonensis L. Pfeiffer, 1854 accepted as Macrocycloides annatonensis (L. Pfeiffer, 1854) (unaccepted, original combination)
    » Species Helix antelata Cox, 1870 accepted as Liardetia samoensis (Mousson, 1865) (unaccepted, junior synonym)
    » Species Helix anthracophila Stache in F. Sandberger, 1871 † accepted as Obbinula anthracophila (Stache in F. Sandberger, 1871) † (unaccepted, new combination)
    » Species Helix antialba Petterd, 1879 accepted as Geminoropa antialba (Petterd, 1879) (unaccepted)
    » Species Helix aorangi Suter, 1890 accepted as Huonodon microundulatum (Suter, 1890) (unaccepted)
    » Species Helix aperta Born, 1778 accepted as Cantareus apertus (Born, 1778) (unaccepted, original combination)
    » Species Helix aphrodite Pfeiffer, 1859 accepted as Crystallopsis aphrodite (Pfeiffer, 1859) (unaccepted, original combination)
    » Species Helix apia Hombron & Jacquinot, 1852 accepted as Trochomorpha apia (Hombron & Jacquinot, 1852) (unaccepted, original combination)
    » Species Helix apiculus L. Pfeiffer, 1849 accepted as Trochoidea cumiae (Calcara, 1847) (unaccepted, junior synonym)
    » Species Helix appendiculata Reeve, 1854 accepted as Figuladra appendiculata (Reeve, 1854) (unaccepted, original combination)
    » Species Helix aprica F. Krauss, 1848 accepted as Chilocystis aprica (F. Krauss, 1848) (unaccepted, original combination)
    » Species Helix arachne Morelet, 1877 accepted as Psichion arachne (Morelet, 1877) (unaccepted, original combination)
    » Species Helix aranea L. Pfeiffer, 1871 accepted as Gittenbergia sororcula (Benoit, 1859) (unaccepted, junior synonym)
    » Species Helix arboreus Say, 1817 accepted as Zonitoides arboreus (Say, 1817) (unaccepted, original combination)
    » Species Helix arcadica L. Pfeiffer, 1853 accepted as Thiessea arcadica (L. Pfeiffer, 1853) (unaccepted, original combination)
    » Species Helix ardua Cox, 1870 accepted as Liardetia samoensis (Mousson, 1865) (unaccepted, junior synonym)
    » Species Helix arenicola Tate, 1878 accepted as Paralaoma servilis (Shuttleworth, 1852) (unaccepted, junior synonym)
    » Species Helix arenosa Krynicki, 1836 accepted as Helicopsis filimargo arenosa (Krynicki, 1836) (unaccepted, original combination)
    » Species Helix argentina Holmberg, 1909 accepted as Epiphragmophora argentina (Holmberg, 1909) (unaccepted, original combination)
    » Species Helix argilacea Férussac, 1821 accepted as Parachloritis argilacea (Férussac, 1821) (unaccepted)
    » Species Helix aridorum Cox, 1866 accepted as Neveritis aridorum (Cox, 1866) (unaccepted, original combination)
    » Species Helix armoricensis Cossmann, 1902 † accepted as Acanthinula armoricensis (Cossmann, 1902) † (unaccepted, new combination)
    » Species Helix arneggensis F. Sandberger, 1875 † accepted as Loganiopharynx arneggensis (F. Sandberger, 1875) † (unaccepted, new combination)
    » Species Helix arnoldii Thomä, 1845 † accepted as Tropidomphalus arnoldii (Thomä, 1845) † (unaccepted, new combination)
    » Species Helix arnotti Benson, 1864 accepted as Microkerkus arnotti (Benson, 1864) (unaccepted, original combination)
    » Species Helix arnoudii Michaud, 1837 † accepted as Dimorphoptychia arnoudii (Michaud, 1837) † (unaccepted, new combination)
    » Species Helix aspera Gmelin, 1791 accepted as Buccinum scabrum O. F. Müller, 1774 (unaccepted, junior synonym)
    » Species Helix aspera Férussac, 1821 accepted as Thelidomus aspera (Férussac, 1821) (unaccepted, invalid: junior homonym of Helix aspera Gmelin, 1791; no replacement name available)
    » Species Helix asperella L. Pfeiffer, 1846 accepted as Trachia asperella (L. Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix aspersa O.F. Müller, 1774 accepted as Cornu aspersum (O. F. Müller, 1774) (unaccepted, original combination)
    » Species Helix asperula Deshayes, 1832 † accepted as Megalotachea turonensis (Deshayes, 1832) † (unaccepted, synonym)
    » Species Helix aspirans W. T. Blanford & H. F. Blanford, 1861 accepted as Kaliella aspirans (W. T. Blanford & H. F. Blanford, 1861) (unaccepted, original combination)
    » Species Helix assimilans Cox, 1864 accepted as Annabellia assimilans (Cox, 1864) (unaccepted, original combination)
    » Species Helix asthena Bourguignat, 1881 † accepted as Leucochroopsis asthena (Bourguignat, 1881) † (unaccepted, new combination)
    » Species Helix atlantica Morelet & Drouët, 1857 accepted as Oxychilus atlanticus (Morelet & Drouët, 1857) (unaccepted, original combination)
    » Species Helix atrofusca L. Pfeiffer, 1861 accepted as Planispira atrofusca (L. Pfeiffer, 1861) (unaccepted, original combination)
    » Species Helix atrolabiata Krynicki, 1833 accepted as Caucasotachea atrolabiata (Krynicki, 1833) (unaccepted, original combination)
    » Species Helix atropos Férussac, 1840 accepted as Ampelita atropos (Férussac, 1840) (unaccepted, original combination)
    » Species Helix audouini d'Orbigny, 1835 accepted as Epiphragmophora audouini (d'Orbigny, 1835) (unaccepted, original combination)
    » Species Helix aulacophora Ancey, 1890 accepted as Phaulocystis aulacophora (Ancey, 1890) (unaccepted, original combination)
    » Species Helix aulacospira L. Pfeiffer, 1846 accepted as Ptychorhytida aulacospira (L. Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix auricularia Linnaeus, 1758 accepted as Radix auricularia (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix auriscaprina Férussac, 1821 accepted as Plekocheilus glaber (Gmelin, 1791) (unaccepted, junior synonymy)
    » Species Helix aurismalchi O. F. Müller, 1774 accepted as Placostylus fibratus (Martyn, 1784) (unaccepted, name suppressed by ICZN Opinion 1662)
    » Species Helix australis Férussac, 1821 accepted as Austrosuccinea australis (Férussac, 1821) (unaccepted, original combination)
    » Species Helix austriaca Menke, 1828 accepted as Caucasotachea vindobonensis (C. Pfeiffer, 1828) (unaccepted)
    » Species Helix aziospudasta Filhol, 1877 † accepted as Pseudoleptaxis aziospudasta (Filhol, 1877) † (unaccepted, new combination)
    » Species Helix babel Beck, 1837 accepted as Limicolaria flammea (O.F. Muller, 1774) (unaccepted, junior synonym)
    » Species Helix bacca L. Pfeiffer, 1866 accepted as Satsuma bacca (L. Pfeiffer, 1866) (unaccepted, original combination)
    » Species Helix bactriana Hutton, 1849 accepted as Euomphalia bactriana (Hutton, 1849) (unaccepted, original combination)
    » Species Helix bailloni Kobelt, 1888 accepted as Alabastrina (Guilia) bailloni (Kobelt, 1888) (unaccepted, original combination)
    » Species Helix bajadera Pfeiffer, 1850 accepted as Ariophanta bajadera (Pfeiffer, 1850) (unaccepted, original combination)
    » Species Helix balansai Morlet, 1886 accepted as Trachia balansai (Morlet, 1886) (unaccepted, original combination)
    » Species Helix balcanica L. Pfeiffer, 1853 accepted as Cattania balcanica (L. Pfeiffer, 1853) (unaccepted, original combination)
    » Species Helix balearica Rossmässler, 1838 accepted as Allognathus balearicus (Rossmässler, 1838) (unaccepted, original combination)
    » Species Helix balesteriana Lea, 1841 accepted as Dyakia janus (Beck, 1837) (unaccepted, junior synonym)
    » Species Helix balmei Potiez & Michaud, 1838 accepted as Pleurodiscus balmei (Potiez & Michaud, 1838) (unaccepted, original combination)
    » Species Helix balstoni Angas, 1877 accepted as Kalidos balstoni (Angas, 1877) (unaccepted, original combination)
    » Species Helix balthica Linnaeus, 1758 accepted as Ampullaceana balthica (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix banneri Pfeiffer, 1863 accepted as Chloritisanax banneri (Pfeiffer, 1863) (unaccepted, original combination)
    » Species Helix baphica Mabille, 1888 accepted as Aegista baphica (Mabille, 1888) (unaccepted, original combination)
    » Species Helix barbatula Reeve, 1852 accepted as Pulchridomus barbatulus (Reeve, 1852) (unaccepted)
    » Species Helix barnaclei E. A. Smith, 1877 accepted as Helix alfredi Cox, 1871 (unaccepted, junior synonym)
    » Species Helix barrakporensis L. Pfeiffer, 1853 accepted as Kaliella barrakporensis (L. Pfeiffer, 1853) (unaccepted, original combination)
    » Species Helix barrenensis Petterd, 1879 accepted as Insularopa barrenensis (Petterd, 1879) (unaccepted, original combination)
    » Species Helix barreri Bourguignat, 1881 † accepted as Caracollina barreri (Bourguignat, 1881) † (unaccepted, new combination)
    » Species Helix basalis Pilsbry, 1890 accepted as Marilynessa yulei (Forbes, 1852) (unaccepted, Invalid: junior homonym of Helix basalis Schmeltz, 1869)
    » Species Helix bascauda Benson, 1859 accepted as Rahula bascauda (Benson, 1859) (unaccepted, original combination)
    » Species Helix basilessa Benson, 1865 accepted as Ariophanta basilessa (Benson, 1865) (unaccepted, original combination)
    » Species Helix basileus Benson, 1861 accepted as Ariophanta basileus (Benson, 1861) (unaccepted, original combination)
    » Species Helix bathmophora Mabille, 1887 accepted as Camaena gabriellae (Dautzenberg & d'Hammonville, 1887) (unaccepted, synonym)
    » Species Helix bathmophorella Mabille, 1889 accepted as Camaena choboensis (Mabille, 1889) (unaccepted, synonym)
    » Species Helix bathyomphala L. Pfeiffer, 1848 accepted as Candidula spadae (Calcara, 1845) (unaccepted, junior synonym)
    » Species Helix bavayi Crosse & Marie, 1868 accepted as Monomphalus bavayi (Crosse & Marie, 1868) (unaccepted, original combination)
    » Species Helix bazini Crosse, 1874 accepted as Andrefrancia bazini (Crosse, 1874) (unaccepted, original combination)
    » Species Helix beatrix Angas, 1876 accepted as Papuina meta (L. Pfeiffer, 1856) (unaccepted, junior synonym)
    » Species Helix beaumontii Matheron, 1842 † accepted as Helix aquensis Serres, 1829 † (unaccepted, junior synonym)
    » Species Helix beddomae Brazier, 1878 accepted as Gnarosophia bellendenkerensis (Brazier, 1875) (unaccepted, junior synonym)
    » Species Helix belangeri Deshayes, 1832 accepted as Ariophanta belangeri (Deshayes, 1832) (unaccepted)
    » Species Helix bellendenkerensis Brazier, 1875 accepted as Gnarosophia bellendenkerensis (Brazier, 1875) (unaccepted, original combination)
    » Species Helix bellengenensis Brazier, 1871 accepted as Austrochloritis bellengerensis (Cox, 1871) (unaccepted, junior synonym)
    » Species Helix bellengerensis Cox, 1871 accepted as Austrochloritis bellengerensis (Cox, 1871) (unaccepted, original combination)
    » Species Helix belli Cox, 1864 accepted as Macrophallikoropa belli (Cox, 1864) (unaccepted, original combination)
    » Species Helix belmorei Cox, 1872 accepted as Trochomorpha belmorei (Cox, 1872) (unaccepted, original combination)
    » Species Helix benigna L. Pfeiffer, 1863 accepted as Trochomorpha benigna (L. Pfeiffer, 1863) (unaccepted, original combination)
    » Species Helix bennetti Brazier, 1872 accepted as Pallidelix bennetti (Brazier, 1872) (unaccepted, original combination)
    » Species Helix berlierei Crosse, 1875 accepted as Andrefrancia berlierei (Crosse, 1875) (unaccepted, original combination)
    » Species Helix bernardii Michaud, 1862 † accepted as Protodrepanostoma bernardii (Michaud, 1862) † (unaccepted, new combination)
    » Species Helix berthelini Deshayes, 1863 † accepted as Grandipatula berthelini (Deshayes, 1863) † (unaccepted)
    » Species Helix bewsheriana Morelet, 1875 † accepted as Dancea bewsheriana (Morelet, 1875) † (unaccepted, original combination)
    » Species Helix beyrichi Deshayes, 1863 † accepted as Cepaea beyrichi (Deshayes, 1863) † (unaccepted, new combination)
    » Species Helix bianconii Deshayes, 1870 accepted as Discus pauper (Gould, 1859) (unaccepted, junior synonym)
    » Species Helix bicarinata G. B. Sowerby I, 1824 accepted as Hystricella bicarinata (G. B. Sowerby I, 1824) (unaccepted, original combination)
    » Species Helix biconcava L. Pfeiffer, 1853 accepted as Cavellia biconcava (Reeve, 1852) (unaccepted)
    » Species Helix bidenticulata Benson, 1852 accepted as Philalanka bidenticulata (Benson, 1852) (unaccepted, original combination)
    » Species Helix bidwilli Reeve, 1853 accepted as Papuexul bidwilli (Reeve, 1853) (unaccepted, original combination)
    » Species Helix biforis Heude, 1885 accepted as Sinicola biforis (Heude, 1885) (unaccepted, original combination)
    » Species Helix bifoveata Benson, 1856 accepted as Chloritis bifoveata (Benson, 1856) (unaccepted, original combination)
    » Species Helix bigoti Crosse, 1867 accepted as Xesta renitens (Morelet, 1861) (unaccepted)
    » Species Helix bilirata W. T. Blanford & H. F. Blanford, 1861 accepted as Philalanka bilirata (W. T. Blanford & H. F. Blanford, 1861) (unaccepted, original combination)
    » Species Helix billeheusti Crosse & Fischer, 1864 accepted as Sitala billeheusti (Crosse & Fischer, 1864) (unaccepted, original combination)
    » Species Helix bimaensis Mousson, 1849 accepted as Asperitas bimaensis (Mousson, 1849) (unaccepted, original combination)
    » Species Helix binaria L. Pfeiffer, 1856 accepted as Endodonta binaria (L. Pfeiffer, 1856) (unaccepted, original combination)
    » Species Helix binaria E. von Martens, 1900 accepted as Fuellebornia sesquicincta (E. von Martens, 1900) (unaccepted, junior synonym)
    » Species Helix biocheana Crosse, 1870 accepted as Helix (Geotrochus) hermione Angas, 1870 (unaccepted, junior synonym)
    » Species Helix bipartita Férussac, 1823 accepted as Hadra bipartita (Férussac, 1823) (unaccepted, original combination)
    » Species Helix bisculpta Benson, 1851 accepted as Trachycystis bisculpta (Benson, 1851) (unaccepted, original combination)
    » Species Helix bitaeniata Cox, 1868 accepted as Sinumelon bitaeniatum (Cox, 1868) (unaccepted, original combination)
    » Species Helix blackmani Cox, 1868 accepted as Calvigenia blackmani (Cox, 1868) (unaccepted, original combination)
    » Species Helix blakei Kobelt, 1879 accepted as Ainohelix editha (A. Adams, 1868) (unaccepted, junior synonym)
    » Species Helix blanda Cox, 1873 accepted as Helix (Geotrochus) adonis Angas, 1870 (unaccepted, junior synonym)
    » Species Helix blandingiana I. Lea, 1840 accepted as Gonaxis monrovia (Rang, 1831) (unaccepted, junior synonym)
    » Species Helix blomfieldi Cox, 1864 accepted as Sphaerospira blomfieldi (Cox, 1864) (unaccepted, original combination)
    » Species Helix boa Hupé, 1857 accepted as Helix pellisboae Hupé, 1853 (unaccepted, invalid: unjustified emendation of )
    » Species Helix bocageana Crosse, 1864 accepted as Bradybaena bocageana (Crosse, 1864) (unaccepted, original combination)
    » Species Helix boghariensis Debeaux, 1857 accepted as Massylaea constantina (E. Forbes, 1838) (unaccepted, junior synonym)
    » Species Helix boissieri Charpentier, 1847 accepted as Sphincterochila zonata (Bourguignat, 1853) (unaccepted, preoccupied name)
    » Species Helix boivinii Petit de la Saussaye, 1841 accepted as Megalacron boivini (Petit de la Saussaye, 1841) (unaccepted, original combination)
    » Species Helix bombycina Reeve, 1854 accepted as Tasmaphena sinclairi (L. Pfeiffer, 1845) (unaccepted, junior synonym)
    » Species Helix bonduelliana Bourguignat, 1863 accepted as Massylaea vermiculata (O. F. Müller, 1774) (unaccepted, junior synonym)
    » Species Helix boryana Morelet, 1875 accepted as Caldwellia angularis (Férussac, 1825) (unaccepted, junior synonym)
    » Species Helix botterii L. Pfeiffer, 1853 accepted as Vitrea botterii (L. Pfeiffer, 1853) (unaccepted, original combination)
    » Species Helix bottinii Sacco, 1884 † accepted as Schlickumia bottinii (Sacco, 1884) † (unaccepted, new combination)
    » Species Helix bougainvillei Pfeiffer, 1860 accepted as Quirosena bougainvillei (Pfeiffer, 1860) (unaccepted, original combination)
    » Species Helix bouilletii De Boissy, 1840 † accepted as Pachycarocollina bouilletii (De Boissy, 1840) † (unaccepted, new combination)
    » Species Helix bourailensis Gassies, 1872 accepted as Andrefrancia bourailensis (Gassies, 1872) (unaccepted, original combination)
    » Species Helix bouyei Crosse & Fischer, 1863 accepted as Sesara bouyei (Crosse & Fischer, 1863) (unaccepted, original combination)
    » Species Helix boyerii Fischer & Bernardi, 1857 accepted as Megalacron boyerii (Fischer & Bernardi, 1857) (unaccepted, original combination)
    » Species Helix braunii Thomä, 1845 † accepted as Galactochiloides braunii (Thomä, 1845) † (unaccepted, new combination)
    » Species Helix brazieri Cox, 1868 accepted as Allocharopa brazieri (Cox, 1868) (unaccepted, original combination)
    » Species Helix brenchleyi Angas, 1879 accepted as Papuina walleri (Brazier, 1883) (unaccepted, invalid: junior homonym of Helix brenchleyi Brazier, 1875)
    » Species Helix brevibarbis Pfeiffer, 1859 accepted as Plectotropis brevibarbis (Pfeiffer, 1859) (unaccepted, original combination)
    » Species Helix brevidens Sowerby I, 1841 accepted as Trichochloritis brevidens (Sowerby I, 1841) (unaccepted, original combination)
    » Species Helix brevipes Draparnaud, 1805 accepted as Daudebardia brevipes (Draparnaud, 1805) (unaccepted, original combination)
    » Species Helix brevipila L. Pfeiffer, 1849 accepted as Austrochloritis brevipila (Pfeiffer, 1849) (unaccepted, original combination)
    » Species Helix breviseta L. Pfeiffer, 1862 accepted as Trichochloritis breviseta (L. Pfeiffer, 1862) (unaccepted, original combination)
    » Species Helix broadbenti Brazier, 1877 accepted as Kendallena broadbenti (Brazier, 1877) (unaccepted, original combination)
    » Species Helix brocchii F. Sandberger, 1872 † accepted as Mesodontopsis chaixii (Michaud, 1855) † (unaccepted, junior synonym)
    » Species Helix brodiei Brazier, 1872 accepted as Papuina brodiei (Brazier, 1872) (unaccepted, original combination)
    » Species Helix brookei A. Adams & Reeve, 1848 accepted as Bertia brookei (A. Adams & Reeve, 1848) (unaccepted, original combination)
    » Species Helix broughami Angas, 1875 accepted as Cupedora broughami (Angas, 1875) (unaccepted, original combination)
    » Species Helix browningii Benson, 1864 accepted as Lyrocystis prionacis (Benson, 1864) (unaccepted, synonym)
    » Species Helix brunonia Johnston, 1888 accepted as Chloritobadistes victoriae (Cox, 1868) (unaccepted, junior synonym)
    » Species Helix brunonis Kobelt, 1894 accepted as Pyrochilus brunonis (Kobelt, 1894) (unaccepted, original combination)
    » Species Helix bulbulus F. Sandberger, 1873 † accepted as Pseudoleptaxis bulbulus (F. Sandberger, 1873) † (unaccepted, new combination)
    » Species Helix bullacea Reeve, 1854 accepted as Terrycarlessia bullacea (Reeve, 1854) (unaccepted, original combination)
    » Species Helix bursatella Gould, 1846 accepted as Libera bursatella (Gould, 1846) (unaccepted, original combination)
    » Species Helix busbyii Gray, 1840 accepted as Paryphanta busbyii (Gray, 1840) (unaccepted)
    » Species Helix buttoni Petterd, 1879 accepted as Helicarion cuvieri Férussac, 1821 (unaccepted, junior synonym)
    » Species Helix cabriti Gassies, 1863 accepted as Diplomphalus cabriti (Gassies, 1863) (unaccepted, original combination)
    » Species Helix cacuminifera Benson, 1850 accepted as Euplecta cacuminifera (Benson, 1850) (unaccepted, original combination)
    » Species Helix cadurcensis Noulet, 1854 † accepted as Parachloraea albigensis (Noulet, 1854) † (unaccepted, synonym)
    » Species Helix caeca Guppy, 1868 accepted as Pupisoma dioscoricola (C. B. Adams, 1845) (unaccepted, synonym)
    » Species Helix caerulescens Gmelin, 1791 † accepted as Hydrobia caerulescens (Gmelin, 1791) † (unaccepted, new combination)
    » Species Helix caesareana Mousson, 1854 accepted as Levantina caesareana (Mousson, 1854) (unaccepted, original combination)
    » Species Helix cafra A. Férussac, 1821 accepted as Natalina cafra (A. Férussac, 1821) (unaccepted, new combination)
      » Variety Helix cafra var. wesseliana Kobelt, 1876 accepted as Natalina (Tongalina) wesseliana (Kobelt, 1876) (original combination)
    » Species Helix cailleti Crosse, 1864 accepted as Pommerhelix monacha (Pfeiffer, 1859) (unaccepted, junior synonym)
      » Variety Helix cailleti var. pallidior Crose, 1864 accepted as Pommerhelix monacha (Pfeiffer, 1859) (junior synonym)
    » Species Helix cairensis Mayer-Eymar, 1889 † accepted as Leucochroa cairensis (Mayer-Eymar, 1889) † (unaccepted, new combination)
    » Species Helix calcarea L. Pfeiffer, 1849 accepted as Theba pisana pisana (O. F. Müller, 1774) (unaccepted, junior synonym)
    » Species Helix calculosa Gould, 1852 accepted as Coneuplecta calculosa (Gould, 1852) (unaccepted, original combination)
    » Species Helix calias W. H. Benson, 1859 accepted as Sophina calias (W. H. Benson, 1859) (unaccepted, original combination)
    » Species Helix calliope Crosse, 1869 accepted as Andrefrancia calliope (Crosse, 1869) (unaccepted, original combination)
    » Species Helix calypso L. Pfeiffer, 1861 accepted as Ampelita calypso (L. Pfeiffer, 1861) (unaccepted, original combination)
    » Species Helix cambojiensis Reeve, 1860 accepted as Bertia cambojiensis (Reeve, 1860) (unaccepted, original combination)
    » Species Helix camelina Bourguignat, 1852 accepted as Schistophallus camelinus (Bourguignat, 1852) (unaccepted, original combination)
    » Species Helix campbelli Gray, 1834 accepted as Advena campbellii (Gray, 1834) (unaccepted, original combination)
    » Species Helix campesina L. Pfeiffer, 1846 accepted as Iberus campesinus (L. Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix candaharica Pfeiffer, 1846 accepted as Xeropicta candaharica (L. Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix candescens C. B. Adams, 1850 accepted as Dentellaria candescens (C. B. Adams, 1850) (unaccepted)
    » Species Helix candicans L. Pfeiffer, 1841 accepted as Xerolenta obvia obvia (Menke, 1828) (unaccepted, junior synonym)
    » Species Helix candidissima Draparnaud, 1801 accepted as Sphincterochila candidissima (Draparnaud, 1801) (unaccepted, original combination)
    » Species Helix candiota L. Pfeiffer, 1849 accepted as Xeromunda candiota (L. Pfeiffer, 1849) (unaccepted, original combination)
    » Species Helix candisata L. Pfeiffer, 1846 accepted as Caseolus abjectus candisatus (L. Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix canovarii Tapparone-Canefri, 1883 accepted as Papuina canovarii (Tapparone-Canefri, 1883) (unaccepted, original combination)
    » Species Helix cantoriana Benson, 1861 accepted as Videna cantoriana (Benson, 1861) (unaccepted, original combination)
    » Species Helix capensis L. Pfeiffer, 1841 accepted as Xerocystis capensis (L. Pfeiffer, 1841) (unaccepted, original combination)
    » Species Helix capgrandi Noulet, 1854 † accepted as Tropidomphalus capgrandi (Noulet, 1854) † (unaccepted, new combination)
    » Species Helix capillacea Férussac, 1832 accepted as Austrorhytida capillacea (Férussac, 1832) (unaccepted, original combination)
    » Species Helix capillata Pease, 1866 accepted as Nesophila capillata (Pease, 1866) (unaccepted, original combination)
    » Species Helix capitium Benson, 1848 accepted as Ganesella capitium (Benson, 1848) (unaccepted, original combination)
    » Species Helix capsula Benson, 1864 accepted as Sheldonia capsula (Benson, 1864) (unaccepted, original combination)
    » Species Helix caputspinulae Reeve, 1852 accepted as Paralaoma servilis (Shuttleworth, 1852) (unaccepted, junior synonym)
    » Species Helix carcharias Pfeiffer, 1864 accepted as Plectorhagada carcharias (Pfeiffer, 1864) (unaccepted, original combination)
    » Species Helix carinata Hombron & Jacquinot, 1841 accepted as Papuina juttingae Mienis, 1993 (unaccepted, invalid: junior homonym of Helix carinata Link, 1807)
    » Species Helix carinulata Klein, 1853 † accepted as Leucochroopsis kleinii (Klein, 1846) † (unaccepted, junior synonym)
    » Species Helix cariosa Olivier, 1804 accepted as Sphincterochila cariosa (Olivier, 1804) (unaccepted, original combination)
    » Species Helix carmelita Tristram, 1865 accepted as Monacha crispulata (Mousson, 1861) (unaccepted, junior synonym; preoccupied by Helix carmelita Férussac, 1821)
    » Species Helix carmelita Férussac, 1821 accepted as Lucerna mora (Gray in Griffith & Pidgeon, 1833) (unaccepted, non Lichenstein, 1794)
    » Species Helix carocolla Linnaeus, 1758 accepted as Caracolus carocolla (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix cartaxensis Roman, 1907 † accepted as Euparypha cartaxensis (Roman, 1907) † (unaccepted, new combination)
    » Species Helix carteriensis Quoy & Gaimard, 1832 accepted as Partula grisea Lesson, 1831 (unaccepted)
    » Species Helix cartusiana O. F. Müller, 1774 accepted as Monacha cartusiana (O. F. Müller, 1774) (unaccepted, original combination)
    » Species Helix caseus L. Pfeiffer, 1860 accepted as Chloritis caseus (L. Pfeiffer, 1860) (unaccepted, original combination)
    » Species Helix castra Benson, 1852 accepted as Sivella castra (Benson, 1852) (unaccepted)
    » Species Helix catantostoma F. Sandberger, 1872 † accepted as Apula catantostoma (F. Sandberger, 1872) † (unaccepted, new combination)
    » Species Helix catinus Benson, 1859 accepted as Plectopylis cyclaspis (Benson, 1859) (unaccepted, juniour homonym of Helix catinus Pfeiffer, 1857)
    » Species Helix cavata Mousson, 1854 accepted as Helix engaddensis Bourguignat, 1852 (unaccepted, junior synonym)
    » Species Helix cavernula L. Pfeiffer, 1853 accepted as Libera streptaxon (Reeve, 1852) (unaccepted, invalid: junior homonym of Helix cavernula Hombron & Jacquinot, 1852)
    » Species Helix cavernula Hombron & Jacquinot, 1847 accepted as Libera jacquinoti (L. Pfeiffer, 1849) (unaccepted, junior synonym)
    » Species Helix cazenavetti Fischer & Bernardi, 1857 accepted as Ampelita lancula (Férussac, 1821) (unaccepted, junior synonym)
    » Species Helix cellaria O. F. Müller, 1774 accepted as Oxychilus cellarius (O. F. Müller, 1774) (unaccepted)
    » Species Helix cenchridium Cossmann, 1902 † accepted as Acanthinula cenchridium (Cossmann, 1902) † (unaccepted, new combination)
    » Species Helix cenestinensis Crosse & Debeaux, 1869 accepted as Marmorana serpentina (A. Férussac, 1821) (unaccepted)
    » Species Helix cepoides Lea, 1840 accepted as Pachya cepoides (Lea, 1840) (unaccepted, original combination)
    » Species Helix cerata Cox, 1868 accepted as Bentosites coxi (Crosse, 1866) (unaccepted, replacement name for Helix cerea Cox, 1864 (Helix coxi Crosse, 1866 is an earlier replacement name))
    » Species Helix cerea Cox, 1864 accepted as Bentosites coxi (Crosse, 1866) (unaccepted, invalid: junior homonym of Helix cerea Gould, 1850)
    » Species Helix cerea L. Pfeiffer, 1851 accepted as Helix cosmia L. Pfeiffer, 1852 (unaccepted, invalid; junior homonym of Helix cerea Gould, 1850; Helix cosmia Pfeiffer, 1852 is a replacement name)
    » Species Helix cerealis Crosse, 1868 accepted as Monomphalus cerealis (Crosse, 1868) (unaccepted, original combination)
    » Species Helix cerina Morelet, 1877 accepted as Eurystyla cerina (Morelet, 1877) (unaccepted, original combination)
    » Species Helix cernua E. von Martens, 1889 accepted as Dorcasia cernua (E. von Martens, 1889) (unaccepted, original combination)
    » Species Helix ceromatica Morelet, 1881 accepted as Macrochlamys ceromatica (Morelet, 1881) (unaccepted, original combination)
    » Species Helix cespitum Draparnaud, 1801 accepted as Xerosecta cespitum (Draparnaud, 1801) (unaccepted, original combination)
    » Species Helix chaignoni Locard, 1888 † accepted as Helicigona chaignoni (Locard, 1888) † (unaccepted, new combination)
    » Species Helix chaixi Michaud, 1855 † accepted as Mesodontopsis chaixii (Michaud, 1855) † (unaccepted, incorrect subsequent spelling; new combination)
      » Variety Helix chaixi var. heriacensis Depéret, 1895 † accepted as Mesodontopsis heriacensis (Depéret, 1895) † (new combination; rank changed)
    » Species Helix chaixii Michaud, 1855 † accepted as Mesodontopsis chaixii (Michaud, 1855) † (unaccepted, new combination)
    » Species Helix chamaeleon L. Pfeiffer, 1868 accepted as Arianta chamaeleon chamaeleon (L. Pfeiffer, 1868) (unaccepted, original combination)
    » Species Helix chancei Cox, 1870 accepted as Papustyla chancei (Cox, 1870) (unaccepted, original combination)
    » Species Helix charybdis Benson, 1856 accepted as Cyclocystis charybdis (Benson, 1856) (unaccepted, original combination)
    » Species Helix chastellii Deshayes in Férussac, 1832 accepted as Kalidos chastellii (Deshayes in Férussac, 1832) (unaccepted, original combination)
    » Species Helix chertieri Deshayes, 1863 † accepted as Grandipatula chertieri (Deshayes, 1863) † (unaccepted)
    » Species Helix chevalieri Souleyet, 1842 accepted as Hemiplecta chevalieri (Souleyet, 1842) (unaccepted, original combination)
    » Species Helix chevallieri Cossmann, 1886 † accepted as Sagdellina chevallieri (Cossmann, 1886) † (unaccepted, new combination)
    » Species Helix chinensis Philippi, 1845 accepted as Aegista chinensis (Philippi, 1845) (unaccepted, original combination)
    » Species Helix chlorozona Grateloup, 1840 accepted as Ampelita chlorozona (Grateloup, 1840) (unaccepted, original combination)
    » Species Helix choboensis Mabille, 1889 accepted as Camaena choboensis (Mabille, 1889) (unaccepted, original combination)
    » Species Helix choukoutienensis Ping, 1929 † accepted as Zonitoides choukoutienensis (Ping, 1929) † (unaccepted, new combination)
    » Species Helix christolii Matheron, 1842 † accepted as Megalotachea christolii (Matheron, 1842) † (unaccepted, new combination)
    » Species Helix chrysosticta Morelet, 1867 accepted as Thapsia chrysosticta (Morelet, 1867) (unaccepted, original combination)
    » Species Helix chytrophora Mabille, 1887 accepted as Pupisoma chytrophora (Mabille, 1887) (unaccepted, original combination)
    » Species Helix cicatricosa O. F. Müller, 1774 accepted as Camaena cicatricosa (O. F. Müller, 1774) (unaccepted, original combination)
    » Species Helix cidaris Lamarck, 1822 accepted as Asperitas cidaris (Lamarck, 1822) (unaccepted, original combination)
    » Species Helix cinctella Draparnaud, 1801 accepted as Hygromia cinctella (Draparnaud, 1801) (unaccepted, original combination)
    » Species Helix cineracea Hombron & Jacquinot, 1841 accepted as Dendrotrochus cineraceus (Hombron & Jacquinot, 1841) (unaccepted, original combination)
    » Species Helix cingulata (Studer, 1820) accepted as Chilostoma cingulatum (Studer, 1820) (unaccepted)
      » Variety Helix cingulata var. olympica Roth, 1855 accepted as Cattania olympica (Roth, 1855) (basionym)
    » Species Helix circumcincta Cox, 1868 accepted as Nitor circumcinctus (Cox, 1868) (unaccepted, original combination)
    » Species Helix circumfiliaris Morelet, 1879 accepted as Sitala circumfiliaris (Morelet, 1879) (unaccepted, original combination)
    » Species Helix circumlineata L. Pfeiffer, 1846 accepted as Gyralina circumlineata (L. Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix cirtae Terver, 1839 accepted as Massylaea constantina (E. Forbes, 1838) (unaccepted, junior synonym)
    » Species Helix citrina Linnaeus, 1758 accepted as Xesta citrina (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix citrinula L. Pfeiffer, 1859 accepted as Faustina faustina (Rossmässler, 1835) (unaccepted, junior synonym)
    » Species Helix clarencensis Cox, 1865 accepted as Helix subrugata Reeve, 1852 (unaccepted, junior synonym)
    » Species Helix clathratula L. Pfeiffer, 1850 accepted as Ruthvenia clathratula (L. Pfeiffer, 1850) (unaccepted, original combination)
    » Species Helix clotho Férussac, 1840 accepted as Ampelita clotho (Férussac, 1840) (unaccepted, original combination)
    » Species Helix coagulum E. von Martens, 1889 accepted as Dorcasia coagulum (E. von Martens, 1889) (unaccepted, original combination)
    » Species Helix coarctata L. Pfeiffer, 1850 accepted as Libera streptaxon (Reeve, 1852) (unaccepted, invalid: junior homonym of Helix coarctata Montagu, 1803)
    » Species Helix coarctata Klein, 1853 † accepted as Apula coarctata (Klein, 1853) † (unaccepted, new combination)
    » Species Helix cochinchinensis L. Pfeiffer, 1862 accepted as Bradybaena cochinchinensis (L. Pfeiffer, 1862) (unaccepted, original combination)
    » Species Helix cocqi Brongniart, 1810 † accepted as Parachloraea cocqi (Brongniart, 1810) † (unaccepted, new combination)
    » Species Helix codonodes L. Pfeiffer, 1847 accepted as Oreobba codonodes (L. Pfeiffer, 1847) (unaccepted, original combination)
    » Species Helix collaris Pfeiffer, 1867 accepted as Sculptaria collaris (Pfeiffer, 1867) (unaccepted, original combination)
    » Species Helix collingii E. A. Smith, 1893 accepted as Setobaudinia collingii (E. A. Smith, 1893) (unaccepted, original combination)
    » Species Helix collongeoni Michaud, 1855 † accepted as Macrozonites collongeoni (Michaud, 1855) † (unaccepted, new combination)
    » Species Helix colona Martens, 1877 accepted as Rhagada colona (Martens, 1877) (unaccepted, original combination)
    » Species Helix comatula F. Sandberger, 1871 † accepted as Pseudoleptaxis comatula (F. Sandberger, 1871) † (unaccepted, new combination)
    » Species Helix comorensis Morelet, 1881 accepted as Xesta comorensis (Morelet, 1881) (unaccepted, original combination)
    » Species Helix complanata Linnaeus, 1758 accepted as Hippeutis complanatus (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix concamerata Wood, 1828 accepted as Gonidomus concamerata (Wood, 1828) (unaccepted, original combination)
    » Species Helix condoriana Crosse & Fischer, 1863 accepted as Trichochloritis condoriana (Crosse & Fischer, 1863) (unaccepted, original combination)
    » Species Helix confinis Gassies, 1875 accepted as Andrefrancia confinis (Gassies, 1875) (unaccepted, original combination)
    » Species Helix confusa Pfeiffer, 1855 accepted as Strangesta confusa (Pfeiffer, 1855) (unaccepted, original combination)
    » Species Helix conicoides Metcalfe, 1851 accepted as Geotrochus conicoides (Metcalfe, 1851) (unaccepted, original combination)
    » Species Helix connivens L. Pfeiffer, 1850 accepted as Bradybaena circulus circulus (L. Pfeiffer, 1846) (unaccepted, junior synonym)
    » Species Helix conoidea Cox, 1864 accepted as Hedleyoconcha delta (Pfeiffer, 1857) (unaccepted, junior synonym)
    » Species Helix conoidea Draparnaud, 1801 accepted as Cochlicella conoidea (Draparnaud, 1801) (unaccepted, original combination)
    » Species Helix consanguinea Férussac, 1840 accepted as Ampelita consanguinea (Férussac, 1840) (unaccepted, original combination)
    » Species Helix conscendens Cox, 1866 accepted as Posorites conscendens (Cox, 1866) (unaccepted, original combination)
    » Species Helix consimilis Pease, 1868 accepted as Mautodontha (Garrettoconcha) consimilis (Pease, 1868) (unaccepted)
    » Species Helix conspurcata Draparnaud, 1801 accepted as Xerotricha conspurcata (Draparnaud, 1801) (unaccepted, original combination)
    » Species Helix constantina E. Forbes, 1838 accepted as Massylaea constantina (E. Forbes, 1838) (unaccepted, original combination)
    » Species Helix constantinae Bourguignat, 1863 accepted as Massylaea constantina (E. Forbes, 1838) (unaccepted, unjustified emendation)
      » Variety Helix constantinae var. bifasciata Bourguignat, 1863 accepted as Massylaea constantina (E. Forbes, 1838) (junior synonym)
      » Variety Helix constantinae var. conoidea Bourguignat, 1863 accepted as Massylaea constantina (E. Forbes, 1838) (junior synonym)
      » Variety Helix constantinae var. depressa Bourguignat, 1863 accepted as Massylaea constantina (E. Forbes, 1838) (junior synonym)
      » Variety Helix constantinae var. maxima Bourguignat, 1863 accepted as Massylaea constantina (E. Forbes, 1838) (junior synonym)
      » Variety Helix constantinae var. minima Bourguignat, 1863 accepted as Massylaea constantina (E. Forbes, 1838) (junior synonym)
      » Variety Helix constantinae var. trifasciata Bourguignat, 1863 accepted as Massylaea constantina (E. Forbes, 1838) (junior synonym)
    » Species Helix constrictelabiata K. Miller, 1907 † accepted as Loganiopharynx constrictelabiatus (K. Miller, 1907) † (unaccepted, new combination)
    » Species Helix contermina L. Pfeiffer, 1847 accepted as Xerosecta contermina (L. Pfeiffer, 1848) (unaccepted, original combination)
    » Species Helix contorta Linnaeus, 1758 accepted as Bathyomphalus contortus (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix contorta Quoy & Gaimard, 1824 accepted as Cookeconcha contorta Solem, 1976 (unaccepted, invalid: junior homonym of Helix contorta Linnaeus, 1758)
    » Species Helix contractiva Mabille, 1889 accepted as Camaena contractiva (Mabille, 1889) (unaccepted, original combination)
    » Species Helix contraria O.F. Müller, 1774 accepted as Amphidromus (Syndromus) contrarius (O. F. Müller, 1774) (unaccepted, original combination)
    » Species Helix contrarius O. F. Müller, 1774 accepted as Amphidromus contrarius (O. F. Müller, 1774) (unaccepted, original combination)
    » Species Helix contusa Férussac, 1821 accepted as Streptaxis contusus (Férussac, 1821) (unaccepted, original combination)
    » Species Helix conula Pease, 1861 accepted as Diastole conula (Pease, 1861) (unaccepted, original combination)
    » Species Helix conus L. Pfeiffer, 1841 accepted as Geotrochus conus (L. Pfeiffer, 1841) (unaccepted, original combination)
    » Species Helix coquandiana Matheron, 1842 † accepted as Parachloraea lapicidites (Boubée, 1831) † (unaccepted, junior synonym)
    » Species Helix corallina Chemnitz, 1795 accepted as Scalenostoma subulatum (Broderip, 1832) (unaccepted)
    » Species Helix corduensis Noulet, 1854 † accepted as Pseudoleptaxis corduensis (Noulet, 1854) † (unaccepted, new combination)
    » Species Helix coriacea Pallas, 1788 accepted as Velutina coriacea (Pallas, 1788) (unaccepted, original combination)
    » Species Helix coriaria Pfeiffer, 1847 accepted as Meridolum gulosum (Gould, 1846) (unaccepted, junior synonym)
    » Species Helix cornea Linnaeus, 1758 accepted as Planorbarius corneus (Linnaeus, 1758) (unaccepted, new combination)
    » Species Helix corneafulva Pfeiffer, 1862 accepted as Oxychilus cellarius (O. F. Müller, 1774) (unaccepted)
    » Species Helix corneovirens Pfeiffer, 1851 accepted as Meridolum corneovirens (Pfeiffer, 1851) (unaccepted, original combination)
    » Species Helix corniculum Reeve, 1852 accepted as Mocella eta (Pfeiffer, 1853) (unaccepted)
    » Species Helix cornuarietis Linnaeus, 1758 accepted as Marisa cornuarietis (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix cornumilitare Linnaeus, 1758 accepted as Pyrochilus cornumilitare (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix corrugata L. Pfeiffer, 1847 accepted as Leptaxis groviana (A. Férussac, 1832) (unaccepted, junior synonym)
    » Species Helix corusca Morelet, 1877 accepted as Macrochlamys corusca (Morelet, 1877) (unaccepted, original combination)
    » Species Helix corvus Gmelin, 1791 accepted as Stagnicola corvus (Gmelin, 1791) (unaccepted, original combination)
    » Species Helix corys Benson, 1859 accepted as Rahula corys (Benson, 1859) (unaccepted, original combination)
    » Species Helix cosmia L. Pfeiffer, 1852 accepted as Lyrocystis cosmia (L. Pfeiffer, 1852) (unaccepted, original combination)
    » Species Helix costulata Cox, 1864 accepted as Diphyoropa saturni (Cox, 1864) (unaccepted, invalid: junior homonym of Helix costulata Lamarck, 1822; Helix saturni is a replacement name)
    » Species Helix costulata Lamarck, 1822 accepted as Bothriembryon costulata (Lamarck, 1822) (unaccepted, original combination)
    » Species Helix costulatostriata Greppin, 1855 † accepted as Discus costulatostriatus (Greppin, 1855) † (unaccepted, new combination)
    » Species Helix costulifera Pfeiffer, 1854 accepted as Andrefrancia costulifera (Pfeiffer, 1854) (unaccepted, original combination)
    » Species Helix cotteri Roman, 1907 † accepted as Megalotachea cotteri (Roman, 1907) † (unaccepted, new combination)
    » Species Helix cotyledonis Benson, 1850 accepted as Sheldonia cotyledonis (Benson, 1850) (unaccepted, original combination)
    » Species Helix coxeni Cox, 1871 accepted as Gloreugenia coxeni (Cox, 1871) (unaccepted, original combination)
    » Species Helix coxi Crosse, 1866 accepted as Bentosites coxi (Crosse, 1866) (unaccepted, original combination)
    » Species Helix cramauxensis Noulet, 1867 † accepted as Parachloraea adornata (Noulet, 1867) † (unaccepted, junior synonym)
    » Species Helix crassa L. Pfeiffer, 1850 accepted as Codringtonia neocrassa Zilch, 1952 (unaccepted, invalid: junior homonym of Helix crassa da Costa, 1778; Codringtonia neocrassa is a replacement name)
    » Species Helix crassicostata Benson, 1848 accepted as Trachia crassicostata (Benson, 1848) (unaccepted, original combination)
    » Species Helix crassilabris L. Pfeiffer, 1847 accepted as Edentiella (Filicinella) leucozona leucozona (C. Pfeiffer, 1828) (unaccepted, junior synonym)
    » Species Helix crebriflammis L. Pfeiffer, 1876 accepted as Tuimalila infudibulus (Hombron & Jacquinot, 1841) (unaccepted, junior synonym)
    » Species Helix creedi Cox, 1868 accepted as Arnemelassa creedi (Cox, 1868) (unaccepted, original combination)
    » Species Helix crenata Gmelin, 1791 accepted as Amphibola crenata (Gmelin, 1791) (unaccepted, original combination)
    » Species Helix cretacea Tausch, 1886 † accepted as Schwardtina cretacea (Tausch, 1886) † (unaccepted, new combination)
    » Species Helix crinigera Benson, 1850 accepted as Thysanota crinigera (Benson, 1850) (unaccepted, original combination)
    » Species Helix crispolanata Wollaston, 1878 accepted as Xerotricha crispolanata (Wollaston, 1878) (unaccepted, original combination)
    » Species Helix crispulata Mousson, 1861 accepted as Monacha crispulata (Mousson, 1861) (unaccepted, original combination)
    » Species Helix croftoni Cox, 1872 accepted as Bentosites coxi (Crosse, 1866) (unaccepted, junior synonym)
    » Species Helix crossei L. Pfeiffer, 1862 accepted as Ariophanta crossei (L. Pfeiffer, 1862) (unaccepted, original combination)
    » Species Helix crotali Cox, 1864 accepted as Expocystis rustica (Pfeiffer, 1852) (unaccepted, replacement name for Helix inconspicua Forbes, 1852; H. rustica as the earlier name has priority)
    » Species Helix crusta Dall, 1890 † accepted as Cepolis (Plagioptycha) crusta (Dall, 1890) † (unaccepted, new combination)
      » Variety Helix crusta var. cunctator Dall, 1890 † accepted as Cepolis (Plagioptycha) cunctator (Dall, 1890) † (new combination; considered a distinct species)
    » Species Helix crustulum Cox, 1873 accepted as Trochomorpha crustulum (Cox, 1873) (unaccepted, original combination)
    » Species Helix crypta L. Pfeiffer, 1868 accepted as Aegopis acies (A. Férussac, 1819) (unaccepted, junior synonym)
    » Species Helix culminea d'Orbigny, 1835 accepted as Kuschelenia culminea (d'Orbigny, 1835) (unaccepted, original combination)
    » Species Helix cunninghami Gray in Griffith & Pidgeon, 1834 accepted as Pedinogyra hayii (Gray in Griffith & Pidgeon, 1833) (unaccepted, objective synonym)
      » Variety Helix cunninghami var. compressa Mousson, 1869 accepted as Pedinogyra rotabilis (Reeve, 1852)
      » Variety Helix cunninghami var. minor Mousson, 1869 accepted as Pedinogyra nanna Iredale, 1937 (non Moquin-Tandon, 1855)
    » Species Helix cupreus Cox, 1868 accepted as Luinodiscus cupreus (Cox, 1868) (unaccepted, original combination)
    » Species Helix curtisiana Pfeiffer, 1864 accepted as Figuladra incei curtisiana (Pfeiffer, 1864) (unaccepted, basionym)
    » Species Helix cuyana L. Pfeiffer, 1867 accepted as Bostryx cuyanus (L. Pfeiffer, 1867) (unaccepted, original combination)
    » Species Helix cyanostoma Mabille, 1884 accepted as Ampelita calypso (L. Pfeiffer, 1861) (unaccepted, junior synonym)
    » Species Helix cyclaria Morelet, 1875 accepted as Propilula cyclaria (Morelet, 1875) (unaccepted, original combination)
    » Species Helix cyclaspis Benson, 1859 accepted as Plectopylis cyclaspis (Benson, 1859) (unaccepted, original combination)
    » Species Helix cyclostomoides Pfeiffer, 1840 accepted as Vitrinella cyclostomoides (Pfeiffer, 1840) (unaccepted, original combination)
    » Species Helix cymatium L. Pfeiffer, 1856 accepted as Hemiplecta cymatium (L. Pfeiffer, 1856) (unaccepted, original combination)
    » Species Helix cyparissias L. Pfeiffer, 1847 accepted as Xeropicta krynickii (Andrzejowski in Krynicki, 1833) (unaccepted, junior synonym)
    » Species Helix cypria L. Pfeiffer, 1847 accepted as Schistophallus cyprius (L. Pfeiffer, 1847) (unaccepted, original combination)
    » Species Helix cyrene Crosse, 1870 accepted as Dendrotrochus cineraceus (Hombron & Jacquinot, 1841) (unaccepted, junior synonym)
    » Species Helix cyrtopleura L. Pfeiffer, 1862 accepted as Pleuroxia cyrtopleura (Pfeiffer, 1862) (unaccepted, original combination)
    » Species Helix cysis Benson, 1852 accepted as Ariophanta cysis (Benson, 1852) (unaccepted, original combination)
    » Species Helix daedalea Gould, 1846 accepted as Mautodontha daedalea (Gould, 1846) (unaccepted)
    » Species Helix daghestana Kobelt, 1877 accepted as Fruticocampylaea daghestana (Kobelt, 1877) (unaccepted, original combination)
    » Species Helix daghoba W. T. Blanford & H. F. Blanford, 1861 accepted as Philalanka daghoba (W. T. Blanford & H. F. Blanford, 1861) (unaccepted, original combination)
    » Species Helix damnata Brongniart, 1810 † accepted as Dentellocaracolus damnatus (Brongniart, 1823) † (unaccepted, new combination)
    » Species Helix danae L. Pfeiffer, 1862 accepted as Ariophanta danae (L. Pfeiffer, 1862) (unaccepted, original combination)
    » Species Helix dandenongensis Petterd, 1879 accepted as Meredithena dandenongensis (Petterd, 1879) (unaccepted, original combination)
    » Species Helix darchiacii De Boissy, 1840 † accepted as Parachloraea darchiacii (De Boissy, 1840) † (unaccepted, new combination)
    » Species Helix dasilepida Mabille, 1881 accepted as Caucasocressa dasilepida (Mabille, 1881) (unaccepted, original combination)
    » Species Helix declivis F. Sandberger, 1870 † accepted as Dentellocaracolus declivis (F. Sandberger, 1870) † (unaccepted, new combination)
    » Species Helix decollata Linnaeus, 1758 accepted as Rumina decollata (Linnaeus, 1758) (unaccepted)
    » Species Helix decreta Gassies, 1871 accepted as Andrefrancia decreta (Gassies, 1871) (unaccepted, original combination)
    » Species Helix dectica Mabille, 1888 accepted as Bradybaena dectica (Mabille, 1888) (unaccepted, original combination)
    » Species Helix decussata Montagu, 1803 accepted as Zebinella decussata (Montagu, 1803) (unaccepted, original combination)
    » Species Helix decussatula Pease, 1866 accepted as Cookeconcha decussatulus (Pease, 1866) (unaccepted, original combination)
    » Species Helix deflexa Souleyet, 1852 accepted as Haploptychius deflexus (Souleyet, 1852) (unaccepted, original combination)
    » Species Helix deidamia Angas, 1869 accepted as Papuina meta (L. Pfeiffer, 1856) (unaccepted, junior synonym)
    » Species Helix dejecta Moricand, 1836 accepted as Odontartemon dejectus (Moricand, 1836) (unaccepted, original combination)
    » Species Helix dejecta Rossmässler, 1838 accepted as Helix arenosa Krynicki, 1836 (unaccepted, junior synonym)
    » Species Helix dejecta Petit de la Saussaye, 1842 accepted as Helix dejecta Moricand, 1836 (unaccepted, synonym and homonym)
    » Species Helix delibrata Benson, 1836 accepted as Chloritis delibrata (Benson, 1836) (unaccepted, original combination)
    » Species Helix deliciosa L. Pfeiffer, 1862 accepted as Camaena deliciosa (L. Pfeiffer, 1862) (unaccepted, original combination)
    » Species Helix delphinensis Fontannes, 1876 † accepted as Megalotachea delphinensis (Fontannes, 1876) † (unaccepted, new combination)
    » Species Helix denatale L. Pfeiffer, 1856 accepted as Oxychilus denatale (L. Pfeiffer, 1856) (unaccepted, original combination)
    » Species Helix dendrobia Crosse, 1868 accepted as Coneuplecta calculosa (Gould, 1852) (unaccepted)
    » Species Helix denotata Férussac, 1823 accepted as Xolotrema denotatum (Férussac, 1823) (unaccepted, original combination)
    » Species Helix densa Adams & Reeve, 1850 accepted as Hemiplecta densa (Adams & Reeve, 1850) (unaccepted, original combination)
    » Species Helix densipapillata F. Sandberger, 1862 † accepted as Galactochiloides densipapillata (F. Sandberger, 1862) † (unaccepted, new combination)
    » Species Helix dentata W. Wood, 1828 accepted as Plagiodontes dentatus (W. Wood, 1828) (unaccepted, original combination)
    » Species Helix dentula Quenstedt, 1867 † accepted as Palaeotachea dentula (Quenstedt, 1867) † (unaccepted, new combination)
    » Species Helix denudata Reuss in Reuss & Meyer, 1849 † accepted as Aegopinella denudata (Reuss in Reuss & Meyer, 1849) † (unaccepted, new combination)
    » Species Helix deplanata Thomä, 1845 † accepted as Oxychilus deplanatus (Thomä, 1845) † (unaccepted, new combination)
    » Species Helix deplanchesi Gassies, 1870 accepted as Ptychorhytida aulacospira (L. Pfeiffer, 1846) (unaccepted)
    » Species Helix depressa Montagu, 1803 accepted as Skeneopsis planorbis (O. Fabricius, 1780) (unaccepted, synonym)
    » Species Helix derbesiana Crosse, 1875 accepted as Andrefrancia derbesiana (Crosse, 1875) (unaccepted, original combination)
    » Species Helix desmarestina Brongniart, 1810 † accepted as Strobilops desmarestinus (Brongniart, 1810) † (unaccepted, new combination)
    » Species Helix despecta Sowerby I, 1839 accepted as Acusta despecta (Sowerby I, 1839) (unaccepted, original combination)
    » Species Helix destituta L. Pfeiffer, 1853 accepted as Candidula spadae (Calcara, 1845) (unaccepted, junior synonym)
    » Species Helix detecta Férussac, 1827 accepted as Harmogenanina detecta (Férussac, 1827) (unaccepted, original combination)
    » Species Helix deupesii Noulet, 1854 † accepted as Monacha (Monacha) deupesii (Noulet, 1854) † (unaccepted, new combination)
    » Species Helix devexa Reuss, 1861 † accepted as Apula devexa (Reuss, 1861) † (unaccepted)
    » Species Helix diarti Cossmann, 1907 † accepted as Coneulota diarti (Cossmann, 1907) † (unaccepted, new combination)
    » Species Helix dicroceri Bourguignat, 1881 † accepted as Tropidomphalus (Pseudochloritis) dicroceri (Bourguignat, 1881) † (unaccepted, new combination)
    » Species Helix dictyodes L. Pfeiffer, 1847 accepted as Pararhytida dictyodes (L. Pfeiffer, 1847) (unaccepted, original combination)
    » Species Helix dictyonina Euthyme, 1885 accepted as Pararhytida mouensis (Crosse, 1868) (unaccepted)
    » Species Helix diemenensis Cox, 1868 accepted as Thryasona diemenensis (Cox, 1868) (unaccepted, original combination)
    » Species Helix diespiter Dall, 1890 † accepted as Pleurodontites diespiter (Dall, 1890) † (unaccepted, new combination)
    » Species Helix dimorpha Pfeiffer, 1852 accepted as Allodiscus dimorphus (Reeve, 1852) (unaccepted)
    » Species Helix diodontina Heude, 1885 accepted as Eostrobilops diodontina (Heude, 1885) (unaccepted, original combination)
    » Species Helix dioscoricola C. B. Adams, 1845 accepted as Pupisoma dioscoricola (C. B. Adams, 1845) (unaccepted, original combination)
    » Species Helix diptyx O. Boettger, 1869 † accepted as Eostrobilops diptyx (O. Boettger, 1869) † (unaccepted, new combination)
    » Species Helix direpta Dall, 1890 † accepted as Cepolis direpta (Dall, 1890) † (unaccepted, new combination)
    » Species Helix discerpta Deshayes, 1863 † accepted as Grandipatula discerpta (Deshayes, 1863) † (unaccepted, new combination)
    » Species Helix discordialis Deshayes, 1839 accepted as Chloritis discordialis Deshayes, 1839 (unaccepted, original combination)
    » Species Helix disculus A. Braun in Walchner, 1851 † accepted as Discus disculus (A. Braun in Walchner, 1851) † (unaccepted, new combination)
    » Species Helix discus Thomä, 1845 † accepted as Archaegopis discus (Thomä, 1845) † (unaccepted, new combination)
    » Species Helix disparilis Deshayes, 1863 † accepted as Janulus disparilis (Deshayes, 1863) † (unaccepted, new combination)
    » Species Helix dispersa Gassies, 1863 accepted as Andrefrancia dispersa (Gassies, 1863) (unaccepted, original combination)
    » Species Helix dissimilis d'Orbigny, 1835 accepted as Stephanoda dissimilis (d'Orbigny, 1835) (unaccepted)
    » Species Helix distans Pease, 1866 accepted as Nesophila distans (Pease, 1866) (unaccepted, original combination)
    » Species Helix distincta L. Pfeiffer, 1850 accepted as Koratia distincta (L. Pfeiffer, 1850) (unaccepted, original combination)
    » Species Helix doliolum L. Pfeiffer, 1846 accepted as Kaliella doliolum (L. Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix doliolum Pfeiffer, 1846 accepted as Liardetia doliolum (Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix dometi Denainvilliers, 1875 † accepted as Klikia dometi (Denainvilliers, 1875) † (unaccepted, new combination)
    » Species Helix dorri Wattebled, 1886 accepted as Kaliella dorri (Wattebled, 1886) (unaccepted, original combination)
    » Species Helix drepanensis L. Pfeiffer, 1857 accepted as Marmorana muralis drepanensis (L. Pfeiffer, 1857) (unaccepted, original combination)
    » Species Helix dringi Pfeiffer, 1846 accepted as Rhagada dringi (Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix drouetii De Boissy, 1840 † accepted as Archaeoxesta drouetii (De Boissy, 1840) † (unaccepted, new combination)
    » Species Helix dryanderensis Cox, 1872 accepted as Offachloritis dryanderensis (Cox, 1872) (unaccepted, original combination)
    » Species Helix ducrosti Locard, 1883 † accepted as Frechenia ducrosti (Locard, 1883) † (unaccepted, new combination)
    » Species Helix dufrenoyii Matheron, 1842 † accepted as Leucochroopsis dufrenoyii (Matheron, 1842) † (unaccepted, new combination)
    » Species Helix dumasi De Boissy, 1848 † accepted as Acanthinula dumasi (De Boissy, 1848) † (unaccepted, new combination)
    » Species Helix dumeticola Benson, 1851 accepted as Nata dumeticola (Benson, 1851) (unaccepted, original combination)
    » Species Helix dunniae Gray, 1840 accepted as Amborhytida dunniae (Gray, 1840) (unaccepted)
    » Species Helix duplocincta Martens, 1879 accepted as Ponsadenia duplocincta (E. v. Martens, 1879) (unaccepted, original combination)
    » Species Helix duponti Morelet, 1866 accepted as Plegma duponti (Morelet, 1866) (unaccepted, original combination)
    » Species Helix duporti Bavay & Dautzenberg, 1909 accepted as Neotrachia duporti (Bavay & Dautzenberg, 1909) (unaccepted, original combination)
    » Species Helix dura Pfeiffer, 1864 accepted as Hemiplecta dura (Pfeiffer, 1864) (unaccepted, original combination)
    » Species Helix duralensis Cox, 1868 accepted as Pommerhelix duralensis (Cox, 1868) (unaccepted, original combination)
    » Species Helix durbani F.E. Edwards, 1852 † accepted as Archygromia durbani (F.E. Edwards, 1852) † (unaccepted, new combination)
    » Species Helix durieui L. Pfeiffer, 1848 accepted as Xeromunda durieui (L. Pfeiffer, 1848) (unaccepted, original combination)
    » Species Helix durvillii Hombron & Jacquinot, 1841 accepted as Xanthomelon durvillii (Hombron & Jacquinot, 1841) (unaccepted, original combination)
    » Species Helix duvalii Petit de la Saussaye, 1844 accepted as Ampelita duvalii (Petit de la Saussaye, 1844) (unaccepted, original combination)
    » Species Helix duvalii Michaud, 1862 † accepted as Eostrobilops duvalii (Michaud, 1862) † (unaccepted, new combination)
    » Species Helix duvauxi Deshayes, 1832 † accepted as Megalotachea turonensis (Deshayes, 1832) † (unaccepted, synonym)
    » Species Helix dyeri Petterd, 1879 accepted as Prolesophanta dyeri (Petterd, 1879) (unaccepted)
    » Species Helix eastlakeana Möllendorff, 1882 accepted as Moellendorffia eastlakeana (Möllendorff, 1882) (unaccepted, original combination)
    » Species Helix eburnea Megerle von Mühlfeld, 1824 accepted as Melanella eburnea (Megerle von Mühlfeld, 1824) (unaccepted)
    » Species Helix echinophora Férussac, 1839 accepted as Helicophanta echinophora (Férussac, 1839) (unaccepted, original combination)
    » Species Helix eddystonensis Reeve, 1854 accepted as Papuina eddystonensis (Reeve, 1854) (unaccepted, original combination)
    » Species Helix edentula Draparnaud, 1805 accepted as Edentiella edentula (Draparnaud, 1805) (unaccepted, original combination)
    » Species Helix edwardsi Cox, 1868 accepted as Xanthomelon jannellei (Le Guillou, 1842) (unaccepted, invalid: junior homonym of Helix edwardsi Bland, 1858; H. meadei is a replacement name)
    » Species Helix edwardsi Deshayes, 1863 † accepted as Archaeoxesta edwardsi (Deshayes, 1863) † (unaccepted, new combination; junior homonym of Helix edwardsi Bland, 1858)
    » Species Helix egenula Morelet, 1848 accepted as Trochozonites egenula (Morelet, 1848) (unaccepted, original combination)
    » Species Helix egesta Gray, 1850 accepted as Egestula egesta (Gray, 1850) (unaccepted)
    » Species Helix ehingensis Klein, 1846 † accepted as Galactochiloides ehingensis (Klein, 1846) † (unaccepted, new combination)
    » Species Helix ekongensis Angas, 1877 accepted as Kalidos ekongensis (Angas, 1877) (unaccepted, original combination)
    » Species Helix elachystoma Martens, 1878 accepted as Rhagada elachystoma (Martens, 1878) (unaccepted, original combination)
    » Species Helix elegans Gmelin, 1791 accepted as Trochoidea elegans (Gmelin, 1791) (unaccepted, original combination)
    » Species Helix elegantissima L. Pfeiffer, 1849 accepted as Plectotropis elegantissima (L. Pfeiffer, 1849) (unaccepted, original combination)
    » Species Helix emoriens Gredler, 1881 accepted as Sinicola emoriens (Gredler, 1881) (unaccepted, original combination)
    » Species Helix endoptycha Martens, 1864 accepted as Vulnus endoptycha (Martens, 1864) (unaccepted, original combination)
    » Species Helix eoa Crosse, 1868 accepted as Euhadra eoa (Crosse, 1868) (unaccepted, original combination)
    » Species Helix erdelii Roth, 1839 accepted as Pleurodiscus balmei (Potiez & Michaud, 1838) (unaccepted, junior synonym)
    » Species Helix erinaceus Pfeiffer, 1861 accepted as Helix eustoma L. Pfeiffer, 1857 (unaccepted, junior synonym)
    » Species Helix erubescens R. T. Lowe, 1831 accepted as Leptaxis simia (A. Férussac, 1832) (unaccepted, preoccupied, non Helix erubescens Solander, 1786)
    » Species Helix escoffierae Fontannes, 1881 † accepted as Apula escoffierae (Fontannes, 1881) † (unaccepted, new combination)
    » Species Helix estella d'Orbigny, 1835 accepted as Epiphragmophora estella (d'Orbigny, 1835) (unaccepted, original combination)
    » Species Helix etheridgei Brazier, 1877 accepted as Bentosites etheridgei (Brazier, 1877) (unaccepted, original combination)
    » Species Helix eucharis Deshayes in Férussac, 1840 accepted as Kalidos eucharis (Deshayes in Férussac, 1840) (unaccepted, original combination)
    » Species Helix eugenia L. Pfeiffer, 1853 accepted as Marmorana globularis eugeniae (L. Pfeiffer, 1853) (unaccepted, original combination)
    » Species Helix euglypha Reuss in Reuss & Meyer, 1849 † accepted as Discus euglyphus (Reuss in Reuss & Meyer, 1849) † (unaccepted, new combination)
    » Species Helix eustoma L. Pfeiffer, 1857 accepted as Chloritis (Eustomopsis) eustoma (L. Pfeiffer, 1857) (unaccepted, original combination)
    » Species Helix eutropis L. Pfeiffer, 1861 accepted as Canariella eutropis (L. Pfeiffer, 1861) (unaccepted, original combination)
    » Species Helix eva Reeve, 1853 accepted as Dendrotrochus (Santotrochus) eva (Reeve, 1853) (unaccepted, original combination)
    » Species Helix evanstonensis White, 1878 † accepted as Helicina evanstonensis (White, 1878) † (unaccepted, new combination)
    » Species Helix eversa Deshayes in Férussac & Deshayes, 1851 † accepted as Palaeotachea turonensis (Deshayes, 1832) † (unaccepted, junior synonym)
    » Species Helix exagitans Cox, 1870 accepted as Cryptocharopa exagitans (Cox, 1870) (unaccepted, original combination)
    » Species Helix excoriata E. von Martens, 1883 accepted as Ampelita sepulcralis (Férussac, 1821) (unaccepted, junior synonym)
    » Species Helix exocarpi Cox, 1868 accepted as Pommerhelix exocarpi (Cox, 1868) (unaccepted, original combination)
    » Species Helix expansa L. Pfeiffer, 1861 accepted as Planispira expansa (L. Pfeiffer, 1861) (unaccepted, original combination)
    » Species Helix expansilabris F. Sandberger, 1858 † accepted as Cyrtochilus expansilabris (F. Sandberger, 1858) † (unaccepted, new combination)
    » Species Helix expeditionis Cox, 1868 accepted as Galadistes expeditionis (Cox, 1868) (unaccepted, original combination)
    » Species Helix extincta Rambur, 1862 † accepted as Pseudochloritis incrassata extincta (Rambur, 1862) † (unaccepted, new combination; rank changed)
      » Variety Helix extincta var. idanica Locard, 1883 † accepted as Puisseguria idanica (Locard, 1883) † (new combination; considered a distinct species)
    » Species Helix eygalierensis Roman, 1899 † accepted as Monacha (Monacha) eygalierensis (Roman, 1899) † (unaccepted, new combination)
    » Species Helix eyrei H. Adams & Angas, 1876 accepted as Lacustrelix eyrei (H. Adams & Angas, 1876) (unaccepted, original combination)
    » Species Helix faba Gmelin, 1791 accepted as Partula faba (Gmelin, 1791) (unaccepted, original combination)
    » Species Helix fabrefacta Pease, 1865 accepted as Nesodiscus fabrefactus (Pease, 1865) (unaccepted, original combination)
    » Species Helix fabrei F. Sandberger, 1873 † accepted as Pseudoleptaxis fabrei (F. Sandberger, 1873) † (unaccepted, new combination)
    » Species Helix facilis F. Sandberger, 1875 † accepted as Cepaea facilis (F. Sandberger, 1875) † (unaccepted, new combination)
    » Species Helix farquhari Melvill & Ponsonby, 1892 accepted as Phaulocystis farquhari (Melvill & Ponsonby, 1892) (unaccepted, original combination)
    » Species Helix fasciata J. Adams, 1800 accepted as Lacuna parva (da Costa, 1778) (unaccepted, synonym)
    » Species Helix fasciolata Spix in Wagner, 1827 accepted as Asolene crassa (Swainson, 1823) (unaccepted)
    » Species Helix fatigata Cox, 1873 accepted as Trochomorpha fatigata (Cox, 1873) (unaccepted, original combination)
    » Species Helix fatua sensu Hutton, 1882 not Pfeiffer, 1857 accepted as Phrixgnathus celia Hutton, 1883 (unaccepted)
    » Species Helix fausta R. T. Lowe, 1831 accepted as Actinella (Actinella) fausta (R. T. Lowe, 1831) (unaccepted, original combination)
      » Subspecies Helix fausta robusta Wollaston, 1878 accepted as Actinella (Actinella) robusta (Wollaston, 1878) (original combination)
    » Species Helix febrilis W. T. Blanford & H. F. Blanford, 1861 accepted as Philalanka febrilis (W. T. Blanford & H. F. Blanford, 1861) (unaccepted, original combination)
    » Species Helix fedtschenkoi Martens, 1874 accepted as Bradybaena fedtschenkoi (Martens, 1874) (unaccepted, original combination)
    » Species Helix feneriffensis H. Adams & Angas, 1876 accepted as Kalidos feneriffensis (H. Adams & Angas, 1876) (unaccepted, original combination)
    » Species Helix ferculum Deshayes, 1863 † accepted as Discus ferculum (Deshayes, 1863) † (unaccepted, new combination)
    » Species Helix ferrantii Deshayes, 1824 † accepted as Discus ferrantii (Deshayes, 1824) † (unaccepted, new combination)
    » Species Helix ficta Pease, 1865 accepted as Nesodiscus fictus (Pease, 1865) (unaccepted, original combination)
    » Species Helix fidelis J.E. Gray, 1834 accepted as Monadenia fidelis (J.E. Gray, 1834) (unaccepted, new combination)
    » Species Helix filholi Bourguignat, 1874 † accepted as Eurystrophe filholi (Bourguignat, 1874) † (unaccepted, new combination)
    » Species Helix filia Mousson, 1861 accepted as Sphincterochila zonata filia (Mousson, 1861) (unaccepted, original combination)
    » Species Helix filicina L. Pfeiffer, 1841 accepted as Edentiella filicina (L. Pfeiffer, 1841) (unaccepted, original combination)
    » Species Helix fimbriata Bourguignat, 1852 accepted as Sphincterochila fimbriata (Bourguignat, 1852) (unaccepted, original combination)
    » Species Helix fimbriosa Martens, 1875 accepted as Sinicola fimbriosa (Martens, 1875) (unaccepted, original combination)
    » Species Helix flammea O. F. Müller, 1774 accepted as Limicolaria flammea (O.F. Muller, 1774) (unaccepted, original combination)
    » Species Helix flavida Rossmässler, 1839 accepted as Pleurodiscus balmei (Potiez & Michaud, 1838) (unaccepted, junior synonym)
    » Species Helix flavocincta Megerle von Mühlfeld, 1829 accepted as Eulima glabra (da Costa, 1778) (unaccepted)
    » Species Helix fleurati Bourguignat, 1868 accepted as Massylaea vermiculata (O. F. Müller, 1774) (unaccepted, junior synonym)
    » Species Helix flosculus Cox, 1866 accepted as Quintalia flosculus (Cox, 1866) (unaccepted, original combination)
    » Species Helix folini Morelet, 1848 accepted as Trochozonites folini (Morelet, 1848) (unaccepted, original combination)
    » Species Helix folliculum Schröter, 1784 accepted as Ferussacia folliculum (Schröter, 1784) (unaccepted, original combination)
    » Species Helix fontana Lightfoot, 1786 accepted as Hippeutis complanatus (Linnaeus, 1758) (unaccepted, junior synonym)
    » Species Helix forbesii Cox, 1864 accepted as Bentosites coxi (Crosse, 1866) (unaccepted, invalid: junior homonym of Helix forbesii Pfeiffer, 1845)
    » Species Helix forensis Wollaston, 1878 accepted as Leptaxis (Katostoma) wollastoni forensis (Wollaston, 1878) (unaccepted, original combination)
    » Species Helix formosensis L. Pfeiffer, 1866 accepted as Satsuma formosensis (L. Pfeiffer, 1866) (unaccepted, original combination)
    » Species Helix forsteriana Reeve, 1852 accepted as Zyghelix forsteriana (Reeve, 1852) (unaccepted, original combination)
      » Subspecies Helix forsteriana major Pfeiffer, 1859 accepted as Zyghelix forsteriana (Reeve, 1852) (junior synonym)
    » Species Helix fortis C. B. Adams, 1850 accepted as Dentellaria okeniana (Pfeiffer, 1845) (unaccepted)
    » Species Helix fossaria Montagu, 1803 accepted as Galba truncatula (O. F. Müller, 1774) (unaccepted)
    » Species Helix fouresi Morlet, 1886 accepted as Chloritis fouresi (Morlet, 1886) (unaccepted, original combination)
    » Species Helix fragilis Linnaeus, 1758 accepted as Lymnaea fragilis (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix franklandiensis Forbes, 1852 accepted as Murphitella franklandiensis (Forbes, 1852) (unaccepted, original combination)
    » Species Helix frappieri Deshayes, 1863 accepted as Louisia barclayi (Benson, 1850) (unaccepted, junior synonym)
    » Species Helix fraseri Gray in Griffith & Pidgeon, 1833 accepted as Sphaerospira fraseri (Griffith & Pidgeon, 1833) (unaccepted, original combination)
    » Species Helix fratercula Pease, 1867 accepted as Libera fratercula (Pease, 1867) (unaccepted, original combination)
    » Species Helix fricki L. Pfeiffer, 1858 accepted as Endodonta fricki (L. Pfeiffer, 1858) (unaccepted, original combination)
    » Species Helix fringilla Pfeiffer, 1855 accepted as Papuina fringilla (Pfeiffer, 1855) (unaccepted, original combination)
    » Species Helix frontonensis Noulet, 1857 † accepted as Parachloraea frontonensis (Noulet, 1857) † (unaccepted, new combination)
    » Species Helix fruticum O.F. Müller, 1774 accepted as Fruticicola fruticum (O. F. Müller, 1774) (unaccepted, original combination)
    » Species Helix fucata Pfeiffer, 1853 accepted as Posorites fucata (Pfeiffer, 1853) (unaccepted, original combination)
    » Species Helix fuelleborni E. von Martens, 1900 accepted as Rhachistia mozambicensis (L. Pfeiffer, 1846) (unaccepted, junior synonym)
    » Species Helix fulgidus J. Adams, 1797 accepted as Eatonina fulgida (J. Adams, 1797) (unaccepted)
    » Species Helix fulgurata G. B. Sowerby I, 1839 accepted as Ampelita fulgurata (G. B. Sowerby I, 1839) (unaccepted, original combination)
    » Species Helix fulica Férussac, 1821 accepted as Achatina fulica (Férussac, 1821) (unaccepted, original combination)
    » Species Helix funebris Morelet, 1877 accepted as Ampelita funebris (Morelet, 1877) (unaccepted, original combination)
    » Species Helix funiculata Reeve, 1854 accepted as Hadra funiculata (Reeve, 1854) (unaccepted, original combination)
    » Species Helix fuscolutea Grateloup, 1840 accepted as Kalidos fuscoluteus (Grateloup, 1840) (unaccepted, original combination)
    » Species Helix fuscozonata Beddome, 1889 accepted as Aaadonta fuscozonata (Beddome, 1889) (unaccepted, original combination)
    » Species Helix gabata Gould, 1844 accepted as Chloritis gabata (Gould, 1844) (unaccepted, original combination)
    » Species Helix gabriellae Dautzenberg & d'Hammonville, 1887 accepted as Camaena gabriellae (Dautzenberg & d'Hammonville, 1887) (unaccepted, original combination)
    » Species Helix gadensis Petterd, 1879 accepted as Gadoropa gadensis (Petterd, 1879) (unaccepted, original combination)
    » Species Helix galactostoma L. Pfeiffer, 1849 accepted as Ampelita galactostoma (L. Pfeiffer, 1849) (unaccepted, original combination)
    » Species Helix galactostomella Mabille, 1886 accepted as Ampelita calypso (L. Pfeiffer, 1861) (unaccepted, junior synonym)
    » Species Helix galera Heude, 1890 accepted as Bradybaena galera (Heude, 1890) (unaccepted, original combination)
    » Species Helix galloprovincialis Matheron, 1842 † accepted as Helix aquensis Serres, 1829 † (unaccepted, junior synonym)
    » Species Helix gargantua A. Férussac, 1821 accepted as Odontostomus gargantua (A. Férussac, 1821) (unaccepted, original combination)
    » Species Helix gaspardiana Paladilhe, 1873 † accepted as Schlickumia gaspardiana (Paladilhe, 1873) † (unaccepted, new combination)
    » Species Helix gassiesi L. Pfeiffer, 1861 accepted as Hebridelos gassiesi (L. Pfeiffer, 1861) (unaccepted, original combination)
    » Species Helix gaudens Mabille, 1884 accepted as Ampelita gaudens (Mabille, 1884) (unaccepted, original combination)
    » Species Helix gawleri Brazier, 1872 accepted as Emmalena gawleri (Brazier, 1872) (unaccepted, original combination)
    » Species Helix gaymardii Matheron, 1842 † accepted as Cepaea gaymardii (Matheron, 1842) † (unaccepted, new combination)
    » Species Helix gelata Cox, 1873 accepted as Papuina gelata (Cox, 1873) (unaccepted)
      » Variety Helix gelata var. maddocksi Brazier, 1881 accepted as Papuina gelata (Cox, 1873) (junior synonym)
    » Species Helix geniculata F. Sandberger, 1872 † accepted as Palaeotachea sylvestrina (Schlotheim, 1820) † (unaccepted, junior synonym)
    » Species Helix gentilsiana Crosse, 1870 accepted as Monomphalus gentilsianus (Crosse, 1870) (unaccepted, original combination)
    » Species Helix genulabris Martens, 1860 accepted as Bradybaena similaris (Férussac, 1822) (unaccepted, junior synonym)
    » Species Helix georgiana Quoy & Gaimard, 1832 accepted as Occirhenea georgiana (Quoy & Gaimard, 1832) (unaccepted, original combination)
    » Species Helix ghiesbreghti Nyst, 1841 accepted as Lysinoe ghiesbreghti (Nyst, 1841) (unaccepted, original combination)
    » Species Helix giengensis Klein, 1846 † accepted as Klikia giengensis (Klein, 1846) † (unaccepted, new combination)
    » Species Helix gigantea Scopoli, 1786 accepted as Polydontes giganteus (Scopoli, 1786) (unaccepted, original combination)
    » Species Helix gilberti Pfeiffer, 1846 accepted as Ponderconcha gilberti (Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix girondica Noulet, 1854 † accepted as Palaeotachea moroguesi (Brongniart, 1810) † (unaccepted, junior synonym)
    » Species Helix glabella Draparnaud, 1801 accepted as Urticicola glabellus (Draparnaud, 1801) (unaccepted, original combination)
    » Species Helix glabrata Megerle von Mühlfeld, 1824 accepted as Pisinna glabrata (Megerle von Mühlfeld, 1824) (unaccepted)
    » Species Helix glanvilliana Ancey, 1890 accepted as Trachycystis glanvilliana (Ancey, 1890) (unaccepted, original combination)
    » Species Helix glauca Linnaeus, 1758 accepted as Pomacea glauca (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix globula Kaleniczenko, 1853 accepted as Stenomphalia selecta (Klika, 1894) (unaccepted, preoccupied name, non Helix globula Lea, 1837)
    » Species Helix globulus O. F. Müller, 1774 accepted as Trigonephrus globulus (O. F. Müller, 1774) (unaccepted, original combination)
    » Species Helix glockeri Quenstedt, 1884 † accepted as Viviparus glockeri (Quenstedt, 1884) † (unaccepted, new combination)
    » Species Helix gloriosa L. Pfeiffer, 1856 accepted as Helicophanta gloriosa (L. Pfeiffer, 1856) (unaccepted, original combination)
    » Species Helix godarti Michaud, 1855 † accepted as Prosoosia godarti (Michaud, 1855) † (unaccepted, new combination)
      » Variety Helix godarti var. planorbiformis Delafond & Depéret, 1893 † accepted as Prosoosia godarti pseudoplanorbis (Wenz, 1924) † (junior homonym of Helix planorbiformis Sacco, 1886; Klikia godarti pseudoplanorbis Wenz, 1924 is a replacement name; new combination)
    » Species Helix goldfussii Thomä, 1845 † accepted as Omphalosagda goldfussii (Thomä, 1845) † (unaccepted, new combination)
    » Species Helix gomerae Wollaston, 1878 accepted as Canariella (Canariella) gomerae (Wollaston, 1878) (unaccepted, original combination)
    » Species Helix gomerensis Morelet, 1864 accepted as Hemicycla gomerensis (Morelet, 1864) (unaccepted, original combination)
    » Species Helix goniochila Pfeiffer, 1862 accepted as Thaitropis ptychostyla (Martens, 1860) (unaccepted, junior synonym)
    » Species Helix goodallii J. S. Miller, 1822 accepted as Helix (Cochlicella) hannensis Rang, 1831 (unaccepted, invalid: junior homonym of Helix goodallii Ferussac, 1821)
    » Species Helix grabhami Wollaston, 1878 accepted as Geomitra grabhami (Wollaston, 1878) (unaccepted, original combination)
    » Species Helix gradata Gould, 1846 accepted as Ouagapia gradata (Gould, 1846) (unaccepted, original combination)
    » Species Helix graellsiana L. Pfeiffer, 1848 accepted as Allognathus graellsianus (L. Pfeiffer, 1848) (unaccepted, original combination)
    » Species Helix graftonensis Cox, 1864 accepted as Helix subrugata Reeve, 1852 (unaccepted, junior synonym)
    » Species Helix grandidieri Crosse & P. Fischer, 1875 accepted as Helicophanta goudotiana (Férussac, 1839) (unaccepted, junior synonym)
    » Species Helix granomalleata Wollaston, 1878 accepted as Hemicycla (Hemicycla) granomalleata (Wollaston, 1878) (unaccepted, original combination)
    » Species Helix granti L. Pfeiffer, 1866 accepted as Aegista granti (L. Pfeiffer, 1865) (unaccepted, original combination)
    » Species Helix granulosa Férussac, 1840 accepted as Ampelita granulosa (Férussac, 1840) (unaccepted, original combination)
    » Species Helix gratiosa Cox, 1871 accepted as Bentosites gavisa Iredale, 1933 (unaccepted, invalid: junior homonym of Helix gratiosa Studer, 1820)
    » Species Helix grayi Pfeiffer, 1847 accepted as Meridolum grayi (Pfeiffer, 1847) (unaccepted, original combination)
    » Species Helix greenhilli Cox, 1866 accepted as Pallidelix greenhilli (Cox, 1866) (unaccepted, original combination)
    » Species Helix greenwoodi Gray, 1850 accepted as Rhytida greenwoodi (Gray, 1850) (unaccepted)
    » Species Helix grenvillei Brazier, 1876 accepted as Thysanota grenvillei (Brazier, 1876) (unaccepted, original combination)
    » Species Helix gualinoi Michaud, 1855 † accepted as Megalotachea gualinoi (Michaud, 1855) † (unaccepted, new combination)
    » Species Helix guarani d'Orbigny, 1835 accepted as Bahiensis guarani (d'Orbigny, 1835) (unaccepted)
    » Species Helix guatemalensis Crosse & P. Fischer, 1872 accepted as Lyroconus caecoides (Tate, 1870) (unaccepted)
    » Species Helix guerini Pfeiffer, 1842 accepted as Thysanota guerini (Pfeiffer, 1842) (unaccepted, original combination)
    » Species Helix guestieriana Crosse, 1868 accepted as Helicophanta guestieriana (Crosse, 1868) (unaccepted, original combination)
    » Species Helix guillaini Petit de la Saussaye, 1850 accepted as Ampelita lancula (Férussac, 1821) (unaccepted, junior synonym)
    » Species Helix guiraoana L. Pfeiffer, 1853 accepted as Iberus guiraoanus (L. Pfeiffer, 1853) (unaccepted, original combination)
    » Species Helix gulosa Gould, 1846 accepted as Meridolum gulosum (Gould, 1846) (unaccepted, original combination)
    » Species Helix guttula Pfeiffer, 1853 accepted as Lamprocystis guttula (Pfeiffer, 1853) (unaccepted, original combination)
    » Species Helix gyrina Gassies, 1859 accepted as Andrefrancia dispersa (Gassies, 1863) (unaccepted, invalid: junior homonym of Helix gyrina Deshayes, 1850)
    » Species Helix gyroides L. Pfeiffer, 1871 accepted as Xeropicta derbentina (Krynicki, 1836) (unaccepted, junior synonym)
    » Species Helix gyrorbis Klein, 1846 † accepted as Janulus gyrorbis (Klein, 1846) † (unaccepted, new combination)
    » Species Helix hahni Mabille, 1887 accepted as Camaena hahni (Mabille, 1887) (unaccepted, original combination)
    » Species Helix hainesii Pfeiffer, 1856 accepted as Sarika hainesii (Pfeiffer, 1856) (unaccepted, original combination)
    » Species Helix halata Mousson, 1849 accepted as Asperitas bimaensis halata (Mousson, 1849) (unaccepted, original combination)
    » Species Helix haliotoidea Linnaeus, 1758 accepted as Sinum haliotoideum (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix hannensis Rang, 1831 accepted as Opeas hannense (Rang, 1831) (unaccepted)
    » Species Helix hardouini de Morgan, 1885 accepted as Trachia hardouini (de Morgan, 1885) (unaccepted, original combination)
    » Species Helix harriettae Cox, 1868 accepted as Austrorhytida harriettae (Cox, 1868) (unaccepted, original combination)
    » Species Helix hartvigiana L. Pfeiffer, 1861 accepted as Phortion hartvigianum (L. Pfeiffer, 1861) (unaccepted, original combination)
    » Species Helix haruspica Dall, 1890 † accepted as Pleurodontites haruspica (Dall, 1890) † (unaccepted, new combination)
    » Species Helix haveri Michelotti, 1847 † accepted as Tropidomphalus (Pseudochloritis) haveri (Michelotti, 1847) † (unaccepted, new combination)
    » Species Helix hayii Gray in Griffith & Pidgeon, 1833 accepted as Pedinogyra hayii (Gray in Griffith & Pidgeon, 1833) (unaccepted, original combination)
    » Species Helix headonensis F.E. Edwards, 1852 † accepted as Strobilops headonensis (F.E. Edwards, 1852) † (unaccepted, new combination)
    » Species Helix heberti Deshayes, 1863 † accepted as Ochthephila (Caseolus) heberti (Deshayes, 1863) † (unaccepted, new combination)
    » Species Helix heckeliana Crosse, 1872 accepted as Monomphalus rossiterianus (Crosse, 1871) (unaccepted, unnecessary nom. nov. for Helix rossiteriana Crosse, 1871, by Crosse treated as a junior homonym of Helix rossiteri Angas, 1869)
    » Species Helix hectori Suter, 1890 accepted as Huonodon hectori (Suter, 1890) (unaccepted, original combination)
    » Species Helix heldreichi L. Pfeiffer, 1846 accepted as Thiessea heldreichi (L. Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix helva Cox, 1870 accepted as Reticharopa helva (Cox, 1870) (unaccepted, original combination)
    » Species Helix hemipleuris Möllendorff, 1885 accepted as Metodontia huaiensis hemipleuris Möllendorff, 1885 (unaccepted, original combination)
    » Species Helix hemisphaerica Michaud, 1837 † accepted as Grandipatula hemisphaerica (Michaud, 1837) † (unaccepted, new combination)
    » Species Helix henschei L. Pfeiffer, 1867 accepted as Trochomorpha henschei (L. Pfeiffer, 1867) (unaccepted, original combination)
    » Species Helix hepatizon Gould, 1845 accepted as Rhysotina hepatizon (Gould, 1845) (unaccepted, original combination)
    » Species Helix hermanni L. Pfeiffer, 1866 accepted as Rotadiscus hermanni (L. Pfeiffer, 1866) (unaccepted)
    » Species Helix hermione Angas, 1870 accepted as Papuina hermione (Angas, 1869) (unaccepted, original combination)
    » Species Helix hesperarche Cockerell, 1914 † accepted as Hodopoeus hesperarche (Cockerell, 1914) † (unaccepted, new combination)
    » Species Helix hetaera Pfeiffer, 1860 accepted as Zyghelix forsteriana (Reeve, 1852) (unaccepted, junior synonym)
    » Species Helix heynemanni L. Pfeiffer, 1862 accepted as Libera heynemanni (L. Pfeiffer, 1862) (unaccepted, original combination)
    » Species Helix hidalgoiana Crosse, 1864 accepted as Trochomorpha hidalgoiana (Crosse, 1864) (unaccepted, original combination)
    » Species Helix hierosolyma Mousson, 1854 accepted as Levantina lithophaga (Conrad, 1852) (unaccepted, junior synonym)
    » Species Helix hierosolymitana Bourguignat, 1852 accepted as Pyramidula rupestris (Draparnaud, 1801) (unaccepted, junior synonym)
    » Species Helix hildagoiana Crosse, 1864 accepted as Trochomorpha zenobia (L. Pfeiffer, 1863) (unaccepted, junior synonym)
    » Species Helix hipparionum Ping, 1929 † accepted as Vallonia hipparionum (Ping, 1929) † (unaccepted, new combination)
    » Species Helix hispanica Rossmässler, 1838 accepted as Allognathus balearicus (Rossmässler, 1838) (unaccepted, preoccupied name; non Helix lactea var. Hispanica Potiez & Michaud, 1835)
    » Species Helix hispida Linnaeus, 1758 accepted as Trochulus hispidus (Linnaeus, 1758) (unaccepted, original combination)
    » Species Helix hispidula Lamarck, 1822 accepted as Canariella hispidula (Lamarck, 1822) (unaccepted, new combination)
    » Species Helix hitachi Ijima, 1891 accepted as Euhadra brandtii brandtii (Kobelt, 1875) (unaccepted, junior synonym)
    » Species Helix hochheimensis O. Boettger, 1897 † accepted as Omphalosagda hochheimensis (O. Boettger, 1897) † (unaccepted, new combination)
    » Species Helix hochstetteri L. Pfeiffer, 1862 accepted as Powelliphanta hochstetteri (L. Pfeiffer, 1862) (unaccepted)
    » Species Helix hololoma Möllendorff, 1887 accepted as Aulacospira hololoma (Möllendorff, 1887) (unaccepted, original combination)
    » Species Helix homalospira Morelet, 1883 accepted as Psichion homalospira (Morelet, 1883) (unaccepted, original combination)
    » Species Helix hombresi Fontannes, 1884 † accepted as Parachloraea hombresi (Fontannes, 1884) † (unaccepted, new combination)
    » Species Helix hombroni Pfeiffer, 1857 accepted as Chloritis quercina hombroni (Pfeiffer, 1857) (unaccepted, basionym)
    » Species Helix hookeri Reeve, 1854 accepted as Notodiscus hookeri (Reeve, 1854) (unaccepted, original combination)
    » Species Helix hookeriana Petterd, 1879 accepted as Groveiana hookeriana (Petterd, 1879) (unaccepted, original combination)
    » Species Helix horrida L. Pfeiffer, 1863 accepted as Moellendorffia horrida (Pfeiffer, 1863) (unaccepted, original combination)
    » Species Helix hortulana Thomä, 1845 † accepted as Palaeotachea hortulana (Thomä, 1845) † (unaccepted, new combination)
    » Species Helix hottentota Melvill & Ponsonby, 1891 accepted as Paralaoma hottentota (Melvill & Ponsonby, 1891) (unaccepted, original combination)
    » Species Helix hova Angas, 1877 accepted as Ampelita hova (Angas, 1877) (unaccepted, original combination)
    » Species Helix howeinsulae Cox, 1873 accepted as Epiglypta howeinsulae (Cox, 1873) (unaccepted, original combination)
    » Species Helix huaheinensis L. Pfeiffer, 1853 accepted as Nesodiscus huaheinensis (L. Pfeiffer, 1853) (unaccepted, original combination)
    » Species Helix hubbardi A. D. Brown, 1861 accepted as Strobilops hubbardi (A. D. Brown, 1861) (unaccepted, original combination)
    » Species Helix hubbardi A.D. Brown, 1861 accepted as Strobilops hubbardi (A. D. Brown, 1861) (unaccepted, new combination)
    » Species Helix hudsoniae Benson, 1864 accepted as Sheldonia hudsoniae (Benson, 1864) (unaccepted, original combination)
    » Species Helix hueensis Wattebled, 1886 accepted as Pupisoma hueense (Wattebled, 1886) (unaccepted, original combination)
    » Species Helix hugonis Pfeiffer, 1863 accepted as Dyakia hugonis (Pfeiffer, 1863) (unaccepted, original combination)
    » Species Helix humphreysiana I. Lea, 1841 accepted as Hemiplecta humphreysiana (I. Lea, 1841) (unaccepted, original combination)
    » Species Helix hungerfordiana Möllendorff, 1884 accepted as Yakuchloritis hungerfordianus (Möllendorff, 1884) (unaccepted, original combination)
    » Species Helix hunteri Cox, 1872 accepted as Crystallopsis hunteri (Cox, 1872) (unaccepted, original combination)
    » Species Helix huttoni L. Pfeiffer, 1842 accepted as Landouria huttoni (L. Pfeiffer, 1842) (unaccepted, original combination)
    » Species Helix hygrohylaea d'Orbigny, 1835 accepted as Drymaeus hygrohylaeus (d'Orbigny, 1835) (unaccepted, original combination)
    » Species Helix hystricella L. Pfeiffer, 1859 accepted as Cookeconcha hystricellus (L. Pfeiffer, 1859) (unaccepted, original combination)
    » Species Helix hystrix L. Pfeiffer, 1846 accepted as Cookeconcha hystrix (L. Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix hystrix Cox, 1868 accepted as Mussonena spinei (Cox, 1868) (unaccepted, invalid: junior homonym of Helix hystrix Pfeiffer, 1846)
    » Species Helix ide Gray, 1850 accepted as Suteria ide (Gray, 1850) (unaccepted)
    » Species Helix ignescens L. Pfeiffer, 1861 accepted as Nanina ignescens (L. Pfeiffer, 1861) (unaccepted, original combination)
    » Species Helix illustris L. Pfeiffer, 1862 accepted as Camaena illustris (L. Pfeiffer, 1862) (unaccepted, original combination)
    » Species Helix illyrica Stabile, 1864 accepted as Campylaea illyrica (Stabile, 1864) (unaccepted, original combination)
    » Species Helix immaculata Adams & Reeve, 1850 accepted as Satsuma largillierti (Pfeiffer, 1849) (unaccepted, junior synonym)
    » Species Helix imperfecta Deshayes, 1863 accepted as Caldwellia imperfecta (Deshayes, 1863) (unaccepted, original combination)
    » Species Helix impexa Reeve, 1852 accepted as Expocystis rustica (Pfeiffer, 1852) (unaccepted, replacement name for Helix inconspicua Forbes, 1852; H. rustica as the earlier name has priority)
    » Species Helix improbata Mousson, 1861 accepted as Xerocrassa langloisiana (Bourguignat, 1853) (unaccepted, junior synonym)
    » Species Helix inca d'Orbigny, 1835 accepted as Thaumastus inca (d'Orbigny, 1835) (unaccepted, original combination)
    » Species Helix incei Pfeiffer, 1846 accepted as Figuladra incei (Pfeiffer, 1846) (unaccepted, original combination)
      » Subspecies Helix incei multifasciata Cox, 1864 accepted as Steorra mulgravensis (Brazier, 1872) (invalid: junior homonym of Helix multifasciata Weinland & Anton, 1857)
    » Species Helix incerta Draparnaud, 1805 accepted as Retinella incerta (Draparnaud, 1805) (unaccepted, original combination)
    » Species Helix inclara Morelet, 1889 accepted as Trachycystis inclara (Morelet, 1889) (unaccepted, original combination)
    » Species Helix inconspicua Forbes, 1852 accepted as Expocystis rusticus (Pfeiffer, 1852) (unaccepted, invalid: junior homonym of Helix inconspicua Adams, 1849; Helix rustica Pfeiffer, 1852 is a replacement name)
    » Species Helix incrassata Klein, 1853 † accepted as Pseudochloritis incrassata (Klein, 1853) † (unaccepted, new combination)
    » Species Helix increscens Thomä, 1845 † accepted as Archaeozonites increscens (Thomä, 1845) † (unaccepted, new combination)
    » Species Helix indica L. Pfeiffer, 1846 accepted as Euplecta indica (L. Pfeiffer, 1846) (unaccepted, original combination)
    » Species Helix induta Tate, 1878 accepted as Cupedora evandaleana (Pfeiffer, 1864) (unaccepted, Invalid: junior homonym of Helix induya Pfeiffer, 1846)
    » Species Helix inequalis L. Pfeiffer, 1854 accepted as Ptychorhytida inequalis (L. Pfeiffer, 1854) (unaccepted, original combination)
    » Species Helix inermis Morelet, 1864 accepted as Gonaxis inermis (Morelet, 1864) (unaccepted, original combination)
    » Species Helix inesilla Mabille, 1889 accepted as Camaena choboensis (Mabille, 1889) (unaccepted, synonym)
    » Species Helix infecta Reeve, 1852 accepted as Fectola infecta (Reeve, 1852) (unaccepted)
    » Species Helix inflata Kobelt, 1876 accepted as Pseudotrizona inflata (Kobelt, 1876) (unaccepted, original combination)
    » Species Helix inflexa Zieten, 1832 † accepted as Agalactochilus inflexus (Zieten, 1832) † (unaccepted, new combination)
    » Species Helix infrendens Gould, 1843 accepted as Sesara infrendens (Gould, 1843) (unaccepted, original combination)
    » Species Helix infudibulus Hombron & Jacquinot, 1841 accepted as Tuimalila infudibulus (Hombron & Jacquinot, 1841) (unaccepted, original combination)
    » Species Helix infula Benson, 1848 accepted as Sitala infula (Benson, 1848) (unaccepted, original combination)
    » Species Helix infundibulum Valenciennes, 1846 accepted as Helicophanta falconeri Gray, 1834 (unaccepted, junior synonym)
    » Species Helix ingens C. B. Adams, 1850 accepted as Lucerna lamarckii (Férussac, 1821) (unaccepted)
    » Species Helix ingersollii Bland, 1875 accepted as Microphysula ingersollii (Bland, 1875) (unaccepted, new combination)
    » Species Helix injussa W. T. Blanford & H. F. Blanford, 1861 accepted as Sitala injussa (W. T. Blanford & H. F. Blanford, 1861) (unaccepted, original combination)
    » Species Helix inops Mousson, 1872 accepted as Monilearia inops (Mousson, 1872) (unaccepted, original combination)
    » Species Helix inops Morelet, 1889 accepted as Helix inclara Morelet, 1889 (unaccepted, invalid; junior homonym of Helix inops Mousson, 1872)
    » Species Helix insignis Zieten, 1832 † accepted as Joossia insignis (Zieten, 1832) † (unaccepted, new combination)
    » Species Helix instrumosa Dall, 1890 † accepted as Cepolis