MolluscaBase taxon details

Helix Linnaeus, 1758

153970  (urn:lsid:marinespecies.org:taxname:153970)

accepted
Genus
Helix pomatia Linnaeus, 1758 (type by subsequent designation)
Coenatoria Held, 1838 · unaccepted
Cunula Pallary, 1936 · unaccepted
Helicites W. Martin, 1809 · unaccepted (Established for fossils of Helix...)  
Established for fossils of Helix to distinguish them from extant members of that taxon. Invalid: available only for the purposes of the Principle of Homonymy (Art. 20)
Helix (Helicogena) A. Férussac, 1821 · unaccepted (junior synonym)
Helix (Helix) Linnaeus, 1758 · alternate representation
Helix (Helocogena) [sic] · unaccepted (misspelling)
Helix (Pelasga) P. Hesse, 1908 · alternate representation
Helix (Pomatia) H. Beck, 1837 · unaccepted (Invalid: junior homonym of...)  
Invalid: junior homonym of Pomatia Röding, 1798; and junior objective synonym of Helix
Helix (Tyrrhenaria) P. Hesse, 1918 · unaccepted (original rank)
Pentataenia A. Schmidt, 1855 · unaccepted (junior objective synonym)
Physospira C. R. Boettger, 1914 · unaccepted (junior synonym)
Pomatia Beck, 1837 · unaccepted
Pomatiana Fagot, 1903 · unaccepted
Pseudofigulina P. Hesse, 1917 · unaccepted (invalid; unnecessary substitute name)
Tacheopsis C. R. Boettger, 1909 · unaccepted (junior synonym)
Tyrrhenaria P. Hesse, 1918 · unaccepted (junior synonym)
Species Helix albescens Rossmässler, 1839
Species Helix anctostoma E. von Martens, 1874
Species Helix antiochiensis Kobelt, 1896
Species Helix asemnis Bourguignat, 1860
  » Variety Helix asemnis var. homerica E von Martens, 1889 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
  » Variety Helix asemnis var. plicata "Nägele, 1903" accepted as Helix asemnis Bourguignat, 1860 (in error listed by Neubert (2014) for Helix adanensis var. plicata )
  » Variety Helix asemnis var. venusta E. von Martens, 1889 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
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 ceratina Shuttleworth, 1843
Species Helix cincta O. F. Müller, 1774
  » Subspecies Helix cincta elegans Kobelt, 1906 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
  » Subspecies Helix cincta libanica Kobelt, 1903 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
  » Subspecies Helix cincta melanotica B. Rensch, 1928 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
  » Variety Helix cincta var. anatolica Kobelt, 1891 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
  » Variety Helix cincta var. anctostoma E. von Martens, 1874 accepted as Helix anctostoma E. von Martens, 1874 (basionym)
  » Variety Helix cincta var. cyprica Kobelt, 1891 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
  » Variety Helix cincta var. trojana Kobelt, 1893 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
Species Helix dormitoris (Kobelt, 1898)
  » Subspecies Helix dormitoris arnautorum Knipper, 1939 accepted as Helix dormitoris (Kobelt, 1898) (junior synonym)
  » Subspecies Helix dormitoris hajlensis Knipper, 1939 accepted as Helix dormitoris (Kobelt, 1898) (junior synonym)
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)
  » Variety Helix figulina var. eumolpia Kobelt, 1906 accepted as Helix pomacella Mousson, 1854 (junior synonym)
  » Variety Helix figulina var. nucula Mousson, 1854 accepted as Helix nucula Mousson, 1854 (basionym)
  » Variety Helix figulina var. zonata Germain, 1921 accepted as Helix pomacella Mousson, 1854 (invalid; not Bourguignat, 1860)
Species Helix godetiana Kobelt, 1878
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
  » Subspecies Helix lucorum anaphora Westerlund, 1889 accepted as Helix lucorum Linnaeus, 1758 (junior synonym)
  » Subspecies Helix lucorum hueti Kobelt, 1905 accepted as Helix lucorum Linnaeus, 1758 (junior synonym)
  » Subspecies Helix lucorum loebbeckei Kobelt, 1905 accepted as Helix lucorum Linnaeus, 1758 (junior synonym)
  » Subspecies Helix lucorum moussoni Kobelt, 1905 accepted as Helix lucorum Linnaeus, 1758 (invalid; not L. Pfeiffer, 1849)
  » 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)
  » Variety Helix lucorum var. euphratica E. von Martens, 1874 accepted as Helix lucorum Linnaeus, 1758 (junior synonym)
Species Helix lutescens Rossmässler, 1837
  » Subspecies Helix lutescens fasciata Westerlund, 1889 accepted as Helix lutescens Rossmässler, 1837 (junior synonym)
  » Subspecies Helix lutescens fuscolabiata Westerlund, 1889 accepted as Helix lutescens Rossmässler, 1837 (invalid; not Rossmässler, 1842)
  » Subspecies Helix lutescens serbica Kobelt, 1906 accepted as Helix lutescens Rossmässler, 1837 (invalid; not Kobelt, 1872)
Species Helix maeotica Steklov, 1966 †
Species Helix melanostoma Draparnaud, 1801
  » Variety Helix melanostoma var. candida Rossmässler, 1839 accepted as Helix melanostoma Draparnaud, 1801 (junior synonym)
  » Variety Helix melanostoma var. vittata Rossmässler, 1839 accepted as Helix melanostoma Draparnaud, 1801 (invalid; not O. F. Müller, 1774)
Species Helix mileti Kobelt, 1906
Species Helix mrazeci Sevastos, 1922 †
Species Helix nicaeensis A. Férussac, 1821
Species Helix nucula Mousson, 1854
  » Variety Helix nucula var. mersinae Kobelt, 1896 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
Species Helix pathetica Mousson, 1854
  » Subspecies Helix pathetica armeniaca Kobelt, 1904 accepted as Helix pathetica Mousson, 1854 (junior synonym)
Species Helix pelagonesica (H. Rolle, 1898)
Species Helix philibinensis Rossmässler, 1839
Species Helix pomacella Mousson, 1854
Species Helix pomatella Kobelt, 1876
Species Helix pomatia Linnaeus, 1758
  » Subspecies Helix pomatia albida Moquin-Tandon, 1855 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Subspecies Helix pomatia brunnea Moquin-Tandon, 1855 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Subspecies Helix pomatia expansilabris Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Subspecies Helix pomatia parva Moquin-Tandon, 1855 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Subspecies Helix pomatia quinquefasciata Moquin-Tandon, 1855 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. banatica Kimakowicz, 1890 accepted as Helix pomatia Linnaeus, 1758 (invalid; not Rossmässler, 1838)
  » Variety Helix pomatia var. christinae Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. claudiensis Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. compacta Hazay, 1880 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. costellata Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. decussata Mortillet, 1854 accepted as Helix buchii Dubois de Montpéreux, 1840 (junior synonym)
  » Variety Helix pomatia var. dobrudschae Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. elsae Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. gratiosa Gredler, 1892 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. hajnaldiana Hazay, 1880 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. kapellae Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. krueperi Kobelt, 1906 accepted as Helix schlaeflii Mousson, 1859 (invalid; not O. Boettger, 1891)
  » Variety Helix pomatia var. lagarinae Adami, 1885 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. lednicensis Brancsik, 1888 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. luteola Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. pannonica Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. pedemontana Kobelt, 1907 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. piceata Gredler, 1890 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. pulskyana Hazay, 1880 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. radiata Ulicny, 1885 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. rhodopensis Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. sabulosa Hazay, 1880 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. serbica Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (invalid; not Kobelt, 1872)
  » Variety Helix pomatia var. solitaria Hazay, 1880 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. thessalica O. Boettger, 1886 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
  » Variety Helix pomatia var. transsylvanica Kobelt, 1906 accepted as Helix pomatia Linnaeus, 1758 (junior synonym)
Species Helix pronuba Westerlund, 1879
Species Helix salomonica Nägele, 1899
Species Helix schlaeflii Mousson, 1859
  » Variety Helix schlaeflii var. praestans Blanc, 1879 accepted as Helix schlaeflii Mousson, 1859 (invalid; not L. Pfeiffer, 1854)
Species Helix secernenda Rossmässler, 1847
  » Subspecies Helix secernenda edlaueri Urbanski, 1970 accepted as Helix schlaeflii Mousson, 1859 (junior synonym)
  » Variety Helix secernenda var. insignis Brancsik, 1890 accepted as Helix vladica (Kobelt, 1898) (invalid: junior homonym of H. insignis Zieten, 1830)
  » Variety Helix secernenda var. montenegrina Wohlberedt, 1901 accepted as Helix secernenda Rossmässler, 1847 (junior synonym)
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 toulai Kojumdgieva, 1969 † (accepted > unreplaced junior homonym)
Species Helix valentini Kobelt, 1891
Species Helix vladica (Kobelt, 1898)
  » Subspecies Helix vladica pomatiaeformis Kobelt, 1905 accepted as Helix vladica (Kobelt, 1898) (junior synonym)

Species Helix "plicata" Born, 1778 accepted as Stenomelania plicaria (Born, 1778) (misspelled for plicaria [see erratum, p. 2], not H. plicata [p. 376])
Subgenus Helix (Acanthinula) H. Beck, 1847 accepted as Acanthinula H. Beck, 1847
  » Species Helix (Acanthinula) aculeata O. F. Müller, 1774 accepted as Acanthinula aculeata (O. F. Müller, 1774) (unaccepted combination)
  » Species Helix (Acanthinula) bouryi Cossmann, 1889 † accepted as Acanthinula stueri (Cossmann, 1892) † (junior homonym of H. bouryi Morgan, 1885; Helix stueri is a replacement name)
  » Species Helix (Acanthinula) harpula Reinhardt, 1886 accepted as Salpingoma harpula (Reinhardt, 1886) (original combination)
  » Species Helix (Acanthinula) paronae Sacco, 1887 † accepted as Acanthinula paronae (Sacco, 1887) †
  » Species Helix (Acanthinula) pygmaea Simionescu & Barbu, 1940 † accepted as Acanthinula pygmaea (Simionescu & Barbu, 1940) †
  » Species Helix (Acanthinula) steudneri Jickeli, 1874 accepted as Sitala steudneri (Jickeli, 1874)
  » Species Helix (Acanthinula) tuchoricensis Klika, 1891 † accepted as Acanthinula tuchoricensis (Klika, 1891) †
Subgenus Helix (Acavus) Montfort, 1810 accepted as Acavus Montfort, 1810 (superseded combination)
  » Species Helix (Acavus) coraliolabris E. A. Smith, 1887 accepted as Letitia chapmani (Cox, 1879) (unaccepted > junior subjective synonym)
  » Species Helix (Acavus) fastosa Albers, 1854 accepted as Acavus haemastoma (Linnaeus, 1758) (superseded combination)
  » Species Helix (Acavus) grevillei L. Pfeiffer, 1856 accepted as Acavus grevillei (L. Pfeiffer, 1857) (junior synonym)
  » Species Helix (Acavus) haemastoma Linnaeus, 1758 accepted as Acavus haemastoma (Linnaeus, 1758) (superseded combination)
  » Species Helix (Acavus) melanotragus Born, 1778 accepted as Acavus haemastoma (Linnaeus, 1758) (superseded combination)
  » Species Helix (Acavus) phoenix L. Pfeiffer, 1854 accepted as Acavus phoenix (L. Pfeiffer, 1854) (superseded combination)
  » Species Helix (Acavus) prosperus Albers, 1857 accepted as Acavus haemastoma (Linnaeus, 1758) (superseded combination)
  » Species Helix (Acavus) skinneri Reeve, 1854 accepted as Oligospira skinneri (Reeve, 1854) (superseded combination)
  » Species Helix (Acavus) superba L. Pfeiffer, 1850 accepted as Acavus superbus (L. Pfeiffer, 1850) (superseded combination)
  » Species Helix (Acavus) waltoni Reeve, 1842 accepted as Oligospira valtoni (Reeve, 1842) (superseded combination)
Subgenus Helix (Actinella) R. T. Lowe, 1852 accepted as Actinella R. T. Lowe, 1852
Subgenus Helix (Acusta) Martens, 1860 accepted as Acusta E. von Martens, 1860
  » Species Helix (Acusta) brevispira H. Adams, 1870 accepted as Bradybaena brevispira (H. Adams, 1870) (basionym)
  » Species Helix (Acusta) lineolata Möllendorff, 1875 accepted as Acusta lineolata (Möllendorff, 1875) (original combination)
  » Species Helix (Acusta) plicosa Martens, 1894 accepted as Acusta plicosa (E. von Martens, 1894)
  » Species Helix (Acusta) secusana Gredler, 1892 accepted as Cathaica secusana (Gredler, 1892) (original combination)
  » Species Helix (Acusta) nora H. Adams, 1870 (uncertain > taxon inquirendum)
Subgenus Helix (Aegista) Albers, 1850 accepted as Aegista Albers, 1850
  » Species Helix (Aegista) blakei Kobelt, 1879 accepted as Karaftohelix blakeana (Newcomb, 1865) (junior synonym)
  » Species Helix (Aegista) gerlachi Martens, 1881 accepted as Plectotropis gerlachi (Martens, 1881) (original combination)
  » Species Helix (Aegista) gottschei Möllendorff, 1887 accepted as Aegista gottschei (Möllendorff, 1887) (original combination)
  » Species Helix (Aegista) grumulus Godwin-Austen, 1891 accepted as Landouria grumulus (Godwin-Austen, 1891) (original combination)
  » Species Helix (Aegista) kobensis Schmacker & O. Boettger, 1890 accepted as Aegista (Aegista) kobensis (Schmacker & O. Boettger, 1890) (basionym)
  » Species Helix (Aegista) laurentii Gredler, 1887 accepted as Aegista laurentii (Gredler, 1887) (original combination)
  » Species Helix (Aegista) mitanensis Godwin-Austen, 1889 accepted as Aegista mitanensis (Godwin-Austen, 1889)
  » Species Helix (Aegista) packhaensis Bavay & Dautzenberg, 1909 accepted as Aegista packhaensis (Bavay & Dautzenberg, 1909) (original combination)
  » Species Helix (Aegista) ponticus Halaváts, 1923 † accepted as Apula goniostoma (F. Sandberger, 1872) †
  » Species Helix (Aegista) pudica Godwin-Austen, 1891 accepted as Trachia pudica (Godwin-Austen, 1891) (original combination)
  » Species Helix (Aegista) virilis Gredler, 1887 accepted as Ganesella virilis (Gredler, 1887) (original combination)
  » Species Helix (Aegista) amphiglypta Ancey, 1882 (uncertain > taxon inquirendum)
  » Species Helix (Aegista) pannonica Lörenthey, 1906 † (uncertain > taxon inquirendum)
  » Species Helix (Aegista) perplanata G. Nevill, 1877 (uncertain > taxon inquirendum)
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)
  » Species Helix (Aglaja) macasi E. T. Higgins, 1872 accepted as Epiphragmophora macasi (E. T. Higgins, 1872) (original combination)
  » Species Helix (Aglaja) yocotulana Doering, 1875 accepted as Epiphragmophora hieronymi (Doering, 1875) (junior synonym)
  » Species Helix (Aglaja) farrisi Higgins, 1868 (uncertain > taxon inquirendum)
Subgenus Helix (Amandana) Fagot, 1891 accepted as Xerocrassa (Amandana) Fagot, 1891
Subgenus Helix (Ampelita) H. Beck, 1837 accepted as Ampelita H. Beck, 1837 (original rank)
  » 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, 1862) (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 (Angrandiella) Ancey, 1886 accepted as Epiphragmophora (Angrandiella) Ancey, 1886 (basionym)
Subgenus Helix (Anguispira) Morse, 1864 accepted as Anguispira Morse, 1864
Subgenus Helix (Archelix) Albers, 1850 accepted as Otala Schumacher, 1817 (objective junior synonym)
  » Species Helix (Archelix) pomiformis F. Sandberger, 1858 † accepted as Galactochiloides braunii (Thomä, 1845) † (junior objective synonym)
  » Species Helix (Archelix) tioukaensis Jodot, 1953 † (uncertain > taxon inquirendum)
Subgenus Helix (Arianta) W. Turton, 1831 accepted as Arianta W. Turton, 1831 (unaccepted > superseded combination)
  » Species Helix (Arianta) arbustorum Linnaeus, 1758 accepted as Arianta arbustorum (Linnaeus, 1758) (unaccepted > superseded combination)
Subgenus Helix (Arionta) Martens, 1860 accepted as Arianta W. Turton, 1831 (unjustified emendation of Arianta)
  » Species Helix (Arionta) arbustorum Linnaeus, 1758 accepted as Arianta arbustorum (Linnaeus, 1758) (unaccepted rank)
  » Species Helix (Arionta) arrosa W. G. Binney, 1858 accepted as Helminthoglypta arrosa arrosa (W. G. Binney, 1858)
  » Species Helix (Arionta) carpenteri Newcomb, 1861 accepted as Helminthoglypta carpenteri (Newcomb, 1861) (unaccepted combination)
  » Species Helix (Arionta) coloradoensis Stearns, 1891 accepted as Sonorella coloradoensis (Stearns, 1891) (original combination)
  » Species Helix (Arionta) kelleti [sic] accepted as Xerarionta kellettii (Forbes, 1850) (misspelling of original species name, Helix kellettii Forbes, 1850)
  » Species Helix (Arionta) magdalenensis Stearns, 1891 accepted as Sonorella magdalenensis (Stearns, 1890)
  » Species Helix (Arionta) elatior E. von Martens, 1868 (uncertain > taxon inquirendum, use in more recent taxonomic literature currently undocumented)
  » Species Helix (Arionta) tardyi Delafond & Depéret, 1893 † (uncertain > taxon inquirendum)
Subgenus Helix (Ariophanta) Des Moulins, 1829 accepted as Ariophanta Des Moulins, 1829 (original rank)
Subgenus Helix (Aspasita) Westerlund, 1889 accepted as Aspasita Westerlund, 1889 (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
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 (Bradybaena) Beck, 1837 accepted as Bradybaena Beck, 1837 (original rank)
Subgenus Helix (Brazieria) Ancey, 1887 accepted as Brazieria Ancey, 1887 (superseded combination)
Subgenus Helix (Buliminopsis) Heude, 1890 accepted as Buliminopsis Heude, 1890 (unaccepted rank)
  » Species Helix (Buliminopsis) chineensis Bavay & Dautzenberg, 1909 accepted as Coccoderma chineensis (Bavay & Dautzenberg, 1909) (basionym)
  » Species Helix (Buliminopsis) corti Bavay & Dautzenberg, 1909 accepted as Coccoderma corti (Bavay & Dautzenberg, 1909) (original combination)
  » Species Helix (Buliminopsis) straminea (Möllendorff, 1901) accepted as Ganesella straminea (Möllendorff, 1901) (unaccepted combination)
  » Species Helix (Buliminopsis) substraminea Bavay & Dautzenberg, 1909 accepted as Ganesella substraminea (Bavay & Dautzenberg, 1909) (original combination)
Subgenus Helix (Bulimulus) Leach, 1814 accepted as Bulimulus Leach, 1814
Subgenus Helix (Bulimus) Bruguière, 1789 accepted as Bulimus Bruguière, 1789
Subgenus Helix (Callicochlias) Agassiz, 1847 accepted as Calocochlea Hartmann, 1843 (superseded combination)
Subgenus Helix (Callina) R. T. Lowe, 1855 accepted as Callina R. T. Lowe, 1855 (original rank)
Subgenus Helix (Calocochlea) Hartmann, 1843 accepted as Calocochlea Hartmann, 1843 (original rank)
  » Species Helix (Calocochlea) festiva Donovan, 1825 accepted as Calocochlea festiva (Donovan, 1825) (uncertain > taxon inquirendum)
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) contractiva Mabille, 1889 accepted as Camaena contractiva (Mabille, 1889) (unaccepted 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)
  » Species Helix (Camaena) graeseri Mousson, 1887 accepted as Bradybaena graeseri (Mousson, 1887) (original combination)
  » Species Helix (Camaena) hainanensis H. Adams, 1870 accepted as Camaena hainanensis (H. Adams, 1870) (original combination)
  » Species Helix (Camaena) latilabris Möllendorff, 1874 accepted as Bradybaena latilabris (Möllendorff, 1874) (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) maackii Gerstfeldt, 1859 accepted as Karaftohelix maackii (Gerstfeldt, 1859) (unaccepted > superseded combination)
    » Variety Helix (Camaena) maackii var. unizonalis H. Adams, 1871 (uncertain > unassessed)
  » Species Helix (Camaena) medianus Legrand, 1871 accepted as Mulathena fordei (Brazier, 1871) (junior synonym)
  » Species Helix (Camaena) miranda A. Adams, 1868 accepted as Ainohelix blakeana (Newcomb, 1865) (junior synonym)
  » Species Helix (Camaena) mirifica Bavay & Dautzenberg, 1909 accepted as Aegistohadra mirifica (Bavay & Dautzenberg, 1909) (original combination)
  » Species Helix (Camaena) noetlingi E. von Martens, 1897 accepted as Camaena noetlingi (E. von Martens, 1897) (original combination)
  » Species Helix (Camaena) patricia (L. Pfeiffer, 1859) accepted as Chloraea patricia (L. Pfeiffer, 1859) (unaccepted generic combination)
  » Species Helix (Camaena) praetermissi Cox, 1868 accepted as Figuladra incei (L. Pfeiffer, 1846) (junior synonym)
  » Species Helix (Camaena) serotina A. Adams, 1868 accepted as Ainohelix 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)
  » Species Helix (Camaena) tchiliensis Möllendorff, 1875 (uncertain > taxon inquirendum)
Subgenus Helix (Camaenopsis) Dollfus & Dautzenberg, 1924 † accepted as Camaenopsis Dollfus & Dautzenberg, 1924 †
Subgenus Helix (Camena) E. von Martens, 1860 accepted as Camaena Albers, 1850 (invalid: unjustified emendation of Camaena)
  » Species Helix (Camena) congenita E. A. Smith, 1878 accepted as Euhadra congenita (E. A. Smith, 1878) (original combination)
  » Species Helix (Camena) constantiae H. Adams, 1870 accepted as Cathaica constantiae (H. Adams, 1870) (original combination)
  » Species Helix (Camena) congener E. A. Smith, 1878 (uncertain > taxon inquirendum, basionym)
Subgenus Helix (Campylaea) H. Beck, 1837 accepted as Campylaea H. Beck, 1837
  » Species Helix (Campylaea) cingulata Studer, 1820 accepted as Helix cingulata Studer, 1820 (superseded combination)
  » Species Helix (Campylaea) fabarensis Tuccimei, 1889 † accepted as Tacheocampylaea fabarensis (Tuccimei, 1889) † (new combination)
  » Species Helix (Campylaea) krueperi O. Boettger, 1891 accepted as Josephinella krueperi (O. Boettger, 1891) (original combination)
  » Species Helix (Campylaea) macrostoma Rossmässler, 1837 accepted as Campylaea macrostoma (Rossmässler, 1837) (unaccepted combination)
  » Species Helix (Campylaea) narzanensis Krynicki, 1836 accepted as Fruticocampylaea narzanensis (Krynicki, 1836) (unaccepted combination)
    » Variety Helix (Campylaea) narzanensis var. solidior Mousson, 1873 accepted as Hesseola solidior (Mousson, 1873) (original combination)
    » Variety Helix (Campylaea) narzanensis var. perlineata Mousson, 1873 (uncertain > taxon inquirendum)
  » Species Helix (Campylaea) planospira Lamarck, 1822 accepted as Campylaea planospira (Lamarck, 1822) (unaccepted combination)
  » Species Helix (Campylaea) pratensis L. Pfeiffer, 1846 accepted as Hesseola pratensis (L. Pfeiffer, 1846) (unaccepted combination)
  » Species Helix (Campylaea) standfesti Penecke, 1891 † accepted as Pseudochloritis incrassata (Klein, 1853) † (junior synonym)
  » Species Helix (Campylaea) tiesenhauseni Gredler, 1889 accepted as Campylaea (Oricampylaea) illyrica tiesenhauseni (Gredler, 1889) (original combination and rank)
  » Species Helix (Campylaea) toulai Schlosser, 1907 † accepted as Papillotopsis richarzi (Schlosser, 1907) † (junior synonym)
  » Species Helix (Campylaea) ussuriensis Westerlund, 1897 accepted as Karaftohelix ussuriensis (Westerlund, 1897) (original combination)
  » Species Helix (Campylaea) walteri O. Boettger, 1886 accepted as Liburnica hoffmanni walteri (O. Boettger, 1886) (basionym)
  » Species Helix (Campylaea) bozdagensis K. Ali-Zade, 1954 † (uncertain > taxon inquirendum)
  » Species Helix (Campylaea) cyrensis K. Ali-Zade, 1954 † (uncertain > taxon inquirendum)
  » Species Helix (Campylaea) maureliana Bourguignat, 1880 † (uncertain > taxon inquirendum)
    » Variety Helix (Campylaea) maureliana var. robusta G. Nevill, 1880 † (uncertain > taxon inquirendum)
  » Species Helix (Campylaea) ramoriniana Issel, 1867 (uncertain > taxon inquirendum)
Subgenus Helix (Cantareus) Risso, 1826 accepted as Cantareus Risso, 1826
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 (Caracolla) Albers, 1850 accepted as Caracolla Albers, 1850 (unaccepted rank)
  » Species Helix (Caracolla) anceps A. Gould, 1843 accepted as Holkeion anceps (A. Gould, 1843) (original combination)
  » Species Helix (Caracolla) caracolla Linnaeus, 1758 accepted as Caracolus carocolla (Linnaeus, 1758) (unaccepted combination; misspelling of original species name, Helix carocolla Linnaeus, 1758)
  » Species Helix (Caracolla) dealbata Broderip, 1841 accepted as Chloraea broderipii (L. Pfeiffer, 1842)
  » Species Helix (Caracolla) gabata A. Gould, 1843 accepted as Chloritis gabata (A. Gould, 1843) (basionym)
  » Species Helix (Caracolla) marginella Gmelin, 1791 accepted as Caracolus marginella (Gmelin, 1791) (unaccepted combination)
  » Species Helix (Caracolla) papyracea Broderip, 1841 accepted as Chloraea papyracea (Broderip, 1841) (original combination)
  » Species Helix (Caracolla) puella Broderip, 1841 accepted as Chloraea puella (Broderip, 1841) (original combination)
  » Species Helix (Caracolla) reginae Broderip, 1841 accepted as Chloraea reginae (Broderip, 1841) (original combination)
  » Species Helix (Caracolla) retrorsa A. Gould, 1843 accepted as Hemiplecta retrorsa (A. Gould, 1843) (basionym)
  » Species Helix (Caracolla) smaragdina Grateloup, 1840 accepted as Chloraea smaragdina (Grateloup, 1840) (unaccepted generic combination)
  » Species Helix (Caracolla) troilus A. Gould, 1846 accepted as Trochomorpha troilus (A. Gould, 1846) (basionym)
  » Species Helix (Caracolla) virgo Broderip, 1841 accepted as Chloraea virgo (Broderip, 1841) (original combination)
  » Species Helix (Caracolla) arecibensis L. Pfeiffer, 1856 (uncertain)
  » Species Helix (Caracolla) pellucida A. Gould, 1843 (uncertain > taxon inquirendum, Invalid: junior primary homonym of Helix pellucida O.F. Müller, 1774)
Subgenus Helix (Caracollina) H. Beck, 1837 accepted as Caracollina H. Beck, 1837 (original rank)
Subgenus Helix (Caracolus) Montfort, 1810 accepted as Caracolus Montfort, 1810
Subgenus Helix (Carocolla) accepted as Caracolus Montfort, 1810 (incorrect subsequent spelling)
  » Species Helix (Carocolla) acuta Lamarck, 1816 accepted as Lucerna lamarckii (Férussac, 1821) (non Müller, 1774)
  » Species Helix (Carocolla) cleryi Récluz, 1851 accepted as Dendrotrochus cineraceus (Hombron & Jacquinot, 1841) (junior synonym)
  » Species Helix (Carocolla) madagascariensis Lamarck, 1816 accepted as Ampelita madagascariensis (Lamarck, 1816) (original combination)
  » Species Helix (Carocolla) panayensis L. Pfeiffer, 1842 accepted as Hemiglypta panayensis (L. Pfeiffer, 1842) (original combination)
  » Species Helix (Carocolla) parmula Broderip, 1841 accepted as Obba parmula (Broderip, 1841) (original combination)
  » Species Helix (Carocolla) rota Broderip, 1841 accepted as Obba rota (Broderip, 1841) (original combination)
  » Species Helix (Carocolla) sarcocheila Mörch, 1850 accepted as Caracolus sarcocheilus (Mörch, 1850) (original combination)
  » Species Helix (Carocolla) siquijorensis Broderip, 1841 accepted as Anixa siquijorensis (Broderip, 1841) (original combination)
  » Species Helix (Carocolla) zebuensis Broderip, 1841 accepted as Anixa zebuensis (Broderip, 1841) (original combination)
  » Species Helix (Carocolla) zelandiae Gray, 1843 accepted as Thalassohelix zelandiae (Gray, 1843)
Subgenus Helix (Carthusiana) Kobelt, 1871 accepted as Monacha Fitzinger, 1833
Subgenus Helix (Caseolus) R. T. Lowe, 1852 accepted as Caseolus R. T. Lowe, 1852
Subgenus Helix (Cathaica) Möllendorff, 1884 accepted as Cathaica Möllendorff, 1884 (original rank)
Subgenus Helix (Cepolis) Montfort, 1810 accepted as Cepolis Montfort, 1810
Subgenus Helix (Charopa) Martens, 1860 accepted as Charopa Albers, 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) camillae Legrand, 1871 accepted as Thryasona diemenensis (Cox, 1868) (junior synonym)
  » Species Helix (Charopa) coesus Legrand, 1871 accepted as Pedicamista coesus (Legrand, 1871) (original combination)
  » 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) irvinae Legrand, 1871 accepted as Stenacapha hamiltoni (Cox, 1868) (junior synonym)
  » Species Helix (Charopa) limula Legrand, 1871 accepted as Tasmathera limula (Legrand, 1871) (original combination)
  » Species Helix (Charopa) midsoni Legrand, 1871 accepted as Thryasona diemenensis (Cox, 1868) (junior synonym)
  » Species Helix (Charopa) neglecta Brazier, 1871 accepted as Planilaoma luckmanii (Brazier, 1877) (invalid: junior homonym of Helix neglecta Draparnaud, 1805)
  » Species Helix (Charopa) onslowi Brazier, 1871 accepted as Tasmathera ricei (Brazier, 1871) (junior synonym)
  » Species Helix (Charopa) ricei Brazier, 1871 accepted as Tasmathera ricei (Brazier, 1871) (original combination)
  » Species Helix (Charopa) rotella Brazier, 1871 accepted as Tasmathera ricei (Brazier, 1871) (junior synonym)
  » Species Helix (Charopa) scrupulus Legrand, 1871 accepted as Stenacapha hamiltoni (Cox, 1868) (junior synonym)
  » Species Helix (Charopa) spoliata Legrand, 1871 accepted as Stenacapha hamiltoni (Cox, 1868) (junior synonym)
  » Species Helix (Charopa) subdepressa Brazier, 1872 accepted as Meredithena dandenongensis (Petterd, 1879) (invalid: junior homonym of Helix subdepressa d'Orbigny, 1852)
  » Species Helix (Charopa) thompsoni Legrand, 1871 accepted as Thryasona diemenensis (Cox, 1868) (junior synonym)
  » 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 Beck, 1837 (original rank)
  » Species Helix (Chloritis) balansai Morlet, 1886 accepted as Trachia balansai (Morlet, 1886)
  » Species Helix (Chloritis) balatensis Kobelt, 1896 accepted as Chloritis balatensis (Kobelt, 1896) (original combination)
  » Species Helix (Chloritis) brachystoma E. von Martens, 1903 accepted as Chloritis brachystoma (E. von Martens, 1903) (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) delphax Kobelt, 1891 accepted as Chloritis delphax (Kobelt, 1891) (basionym)
  » Species Helix (Chloritis) dentrecasteauxi E. A. Smith, 1884 accepted as Chloritis dentrecasteauxi (E. A. Smith, 1884) (basionym)
  » Species Helix (Chloritis) durandi Bavay & Dautzenberg, 1900 accepted as Trachia durandi (Bavay & Dautzenberg, 1900) (original combination)
  » Species Helix (Chloritis) ephamilla E. A. Smith, 1895 accepted as Disteustoma ephamilla (E. A. Smith, 1895) (basionym)
  » 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) meander Godwin-Austen, 1891 accepted as Chloritis meander (Godwin-Austen, 1891) (original combination)
  » Species Helix (Chloritis) miara Mabille, 1887 accepted as Trichochloritis miara (Mabille, 1887) (unaccepted 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) perambigua E. A. Smith, 1895 accepted as Gemitelix perambigua (E. A. Smith, 1895) (basionym)
  » Species Helix (Chloritis) plena Godwin-Austen, 1891 accepted as Chloritis plena (Godwin-Austen, 1891) (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)
  » Species Helix (Chloritis) sibutuensis E. A. Smith, 1894 accepted as Chloritis sibutuensis (E. A. Smith, 1894) (original combination)
  » Species Helix (Chloritis) subcorpulentus E. A. Smith, 1889 accepted as Tradeustoma subcorpulenta (E. A. Smith, 1889) (basionym)
  » Species Helix (Chloritis) talabensis Kobelt, 1896 accepted as Chloritis talabensis (Kobelt, 1896) (original combination)
  » Species Helix (Chloritis) euphrosyne E. A. Smith, 1895 (uncertain > taxon inquirendum)
Subgenus Helix (Circinaria) Beck, 1837 accepted as Vallonia Risso, 1826 (junior synonym)
Subgenus Helix (Clausilia) Draparnaud, 1805 accepted as Clausilia Draparnaud, 1805 (superseded combination)
  » Species Helix (Clausilia) badia C. Pfeiffer, 1828 accepted as Macrogastra badia badia (C. Pfeiffer, 1828) (invalid; not Gmelin, 1791)
  » Species Helix (Clausilia) costata C. Pfeiffer, 1828 accepted as Cochlodina costata costata (C. Pfeiffer, 1828)
  » Species Helix (Clausilia) diaphana C. Pfeiffer, 1828 accepted as Pseudofusulus varians (C. Pfeiffer, 1828) (junior synonym)
  » Species Helix (Clausilia) interrupta C. Pfeiffer, 1828 accepted as Fusulus interruptus (C. Pfeiffer, 1828) (original combination)
  » Species Helix (Clausilia) parvula A. Férussac, 1807 accepted as Clausilia rugosa parvula (A. Férussac, 1807) (original name)
  » Species Helix (Clausilia) pumila C. Pfeiffer, 1828 accepted as Clausilia pumila (C. Pfeiffer, 1828) (original combination)
  » Species Helix (Clausilia) varians C. Pfeiffer, 1828 accepted as Pseudofusulus varians (C. Pfeiffer, 1828) (original combination)
Subgenus Helix (Cochlicella) A. Férussac, 1821 accepted as Cochlicella A. Férussac, 1821
  » Species Helix (Cochlicella) acuta O. F. Müller, 1774 accepted as Helix acuta O. F. Müller, 1774 (superseded combination)
  » Species Helix (Cochlicella) barbara Linnaeus, 1758 accepted as Helix barbara Linnaeus, 1758 (superseded combination)
  » Species Helix (Cochlicella) hannensis Rang, 1831 accepted as Opeas hannense (Rang, 1831) (original combination)
  » Species Helix (Cochlicella) obeliscus S. Moricand, 1834 accepted as Obeliscus obeliscus (S. Moricand, 1834) (basionym)
  » Species Helix (Cochlicella) ventrosa Férussac, 1821 accepted as Cochlicella barbara (Linnaeus, 1758)
  » Species Helix (Cochlicella) duplicata Mousson, 1873 (uncertain > taxon inquirendum, invalid, not R. T. Lowe, 1831)
Subgenus Helix (Cochlicelle) [sic] accepted as Cochlicella A. Férussac, 1821 (misspelling)
Subgenus Helix (Cochliclona) Jan, 1830 accepted as Rumina Risso, 1826 (junior synonym)
Subgenus Helix (Cochlicopa) A. Férussac, 1821 accepted as Cochlicopa A. Férussac, 1821 (original rank)
  » Species Helix (Cochlicopa) gracilis R. T. Lowe, 1831 accepted as Amphorella gracilis (R. T. Lowe, 1831) (original name)
  » Species Helix (Cochlicopa) melampoides R. T. Lowe, 1831 accepted as Amphorella melampoides (R. T. Lowe, 1831) (original name)
  » Species Helix (Cochlicopa) ovuliformis R. T. Lowe, 1831 accepted as Cylichnidia ovuliformis (R. T. Lowe, 1831) (original name)
  » Species Helix (Cochlicopa) poireti Férussac, 1821 accepted as Poiretia algira (Bruguière, 1792) (junior synonym)
  » Species Helix (Cochlicopa) rosea Férussac, 1821 accepted as Euglandina rosea (Férussac, 1821)
  » Species Helix (Cochlicopa) tornatellina R. T. Lowe, 1831 accepted as Amphorella (Amphorella) tornatellina (R. T. Lowe, 1831) (original combination)
  » Species Helix (Cochlicopa) triticea R. T. Lowe, 1831 accepted as Amphorella triticea (R. T. Lowe, 1831) (original name)
Subgenus Helix (Cochlitoma) Férussac, 1821 accepted as Cochlitoma A. Férussac, 1821 (original rank)
Subgenus Helix (Cochlodina) Férussac, 1821 accepted as Cochlodina A. Férussac, 1821 (original rank)
Subgenus Helix (Cochlodonta) Férussac, 1821 accepted as Cochlodonta Férussac, 1821
  » Species Helix (Cochlodonta) anconostoma R. T. Lowe, 1831 accepted as Lauria cylindracea (Da Costa, 1778) (junior synonym)
  » Species Helix (Cochlodonta) calathiscus R. T. Lowe, 1831 accepted as Leiostyla calathiscus (R. T. Lowe, 1831) (original name)
  » Species Helix (Cochlodonta) cassida R. T. Lowe, 1831 accepted as Leiostyla cassida (R. T. Lowe, 1831) (original name)
  » Species Helix (Cochlodonta) cheilogona R. T. Lowe, 1831 accepted as Leiostyla cheilogona (R. T. Lowe, 1831) (original name)
  » Species Helix (Cochlodonta) goodalli A. Férussac, 1821 accepted as Azeca goodalli (A. Férussac, 1821) (basionym)
  » Species Helix (Cochlodonta) modiola Férussac, 1821 accepted as Gonospira modiola (Férussac, 1821) (basionym)
  » Species Helix (Cochlodonta) modiolinus Férussac, 1827 accepted as Microstrophia clavulata (Lamarck, 1822)
  » Species Helix (Cochlodonta) monticola R. T. Lowe, 1831 accepted as Leiostyla monticola (R. T. Lowe, 1831) (original name)
  » Species Helix (Cochlodonta) mutabilis Férussac, 1821 accepted as Granaria variabilis (Draparnaud, 1801) (junior synonym)
  » Species Helix (Cochlodonta) pagoda A. Férussac, 1821 accepted as Gonidomus concamerata (W. Wood, 1828) (nomen nudum)
  » Species Helix (Cochlodonta) palanga Férussac, 1821 accepted as Pupa palanga Lesson, 1831 (nomen nudum)
  » Species Helix (Cochlodonta) palangula A. Férussac, 1821 (unaccepted > nomen nudum)
  » Species Helix (Cochlodonta) sphinctostoma R. T. Lowe, 1831 accepted as Leiostyla sphinctostoma (R. T. Lowe, 1831) (original name)
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) albata Férussac, 1827 accepted as Zebrinops albata (Férussac, 1827) (original combination)
  » Species Helix (Cochlogena) angulosa Férussac, 1821 accepted as Helix angulosa Moricand, 1836
  » Species Helix (Cochlogena) apodemetes d'Orbigny, 1835 accepted as Bostryx apodemetus (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) cantagallana Rang, 1831 accepted as Megalobulimus terrestris (Spix in J. A. Wagner, 1827) (junior synonym)
  » Species Helix (Cochlogena) citrinovitrea S. Moricand, 1836 accepted as Simpulopsis citrinovitreus (S. Moricand, 1836) (basionym)
  » Species Helix (Cochlogena) collodes G. B. Sowerby I, 1841 accepted as Helicostyla collodes (G. B. Sowerby I, 1841) (original combination)
  » Species Helix (Cochlogena) coxeirana S. Moricand, 1836 accepted as Leiostracus coxiranus (Potiez & Michaud, 1835) (junior synonym)
  » Species Helix (Cochlogena) crepundia d'Orbigny, 1835 accepted as Naesiotus crepundius (d'Orbigny, 1835) (original combination)
  » Species Helix (Cochlogena) decora Férussac, 1821 accepted as Achatinella decora (Férussac, 1821) (basionym)
  » Species Helix (Cochlogena) flammata Cailliaud, 1823 accepted as Bulimus cailliaudi L. Pfeiffer, 1850 (junior primary homonym of Helix flammata Férussac, 1821)
  » Species Helix (Cochlogena) florida G. B. Sowerby I, 1841 accepted as Cochlodryas florida (G. B. Sowerby I, 1841) (original combination)
  » Species Helix (Cochlogena) fragosa Férussac, 1821 accepted as Bulimus fragosus L. Pfeiffer, 1842 (nomen nudum)
  » Species Helix (Cochlogena) fraterculus Férussac, 1821 accepted as Bulimulus fraterculus (Potiez & Michaud, 1838) (nomen nudum)
  » Species Helix (Cochlogena) goniostoma Férussac, 1821 accepted as Gonyostomus goniostomus (A. Férussac, 1821) (basionym)
  » Species Helix (Cochlogena) granulosa Rang, 1831 accepted as Megalobulimus granulosus (Rang, 1831) (basionym)
  » Species Helix (Cochlogena) heterogramma S. Moricand, 1836 accepted as Protoglyptus heterogramma (S. Moricand, 1836) (basionym)
  » Species Helix (Cochlogena) heterotricha S. Moricand, 1836 accepted as Rhinus heterotrichus (S. Moricand, 1836) (original combination)
  » Species Helix (Cochlogena) hydrophana G. B. Sowerby I, 1841 accepted as Dryocochlias metaformis (Férussac, 1821) (original combination)
  » Species Helix (Cochlogena) ignobilis G. B. Sowerby I, 1841 accepted as Cochlodryas ignobilis (G. B. Sowerby I, 1841) (junior synonym)
  » Species Helix (Cochlogena) kremnoica d'Orbigny, 1835 accepted as Megalobulimus maximus (G. B. Sowerby I, 1825) (junior synonym)
  » 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) multicolor Rang, 1831 accepted as Anthinus multicolor (Rang, 1831) (basionym)
  » Species Helix (Cochlogena) polygramma S. Moricand, 1836 accepted as Drymaeus polygramma (S. Moricand, 1836) (basionym)
  » Species Helix (Cochlogena) pulcherrima G. B. Sowerby I, 1841 accepted as Calocochlea pulcherrima (G. B. Sowerby I, 1841) (original combination)
  » Species Helix (Cochlogena) rhodospira Moricand, 1836 accepted as Auris melanostoma (Moricand, 1836)
  » Species Helix (Cochlogena) rocayana d'Orbigny, 1835 accepted as Naesiotus rocayanus (d'Orbigny, 1835) (original combination)
  » Species Helix (Cochlogena) tenera G. B. Sowerby I, 1841 accepted as Cochlodryas tenera (G. B. Sowerby I, 1841) (original combination)
  » Species Helix (Cochlogena) velutinohispida S. Moricand, 1836 accepted as Rhinus velutinohispidus (S. Moricand, 1836) (original combination)
  » Species Helix (Cochlogena) viminea S. Moricand, 1834 accepted as Leiostracus vimineus (S. Moricand, 1834) (original combination)
  » Species Helix (Cochlogena) virgulata Férussac, 1821 accepted as Drymaeus virgulatus (Férussac, 1821) (basionym)
  » Species Helix (Cochlogena) zebrula Férussac, 1821 accepted as Chondrus zebrulus (Férussac, 1821) (basionym)
Subgenus Helix (Cochlohydra) A. Férussac, 1821 accepted as Succinea Draparnaud, 1801 (junior synonym)
Subgenus Helix (Cochlopupa) Jan, 1830 accepted as Cochlopupa Jan, 1830 (original rank)
Subgenus Helix (Cochlostyla) Férussac, 1821 accepted as Cochlostyla Férussac, 1821 (superseded combination)
  » Species Helix (Cochlostyla) daphnis Broderip, 1841 accepted as Helicostyla daphnis (Broderip, 1841) (original combination)
  » Species Helix (Cochlostyla) faunus Broderip, 1841 accepted as Helicostyla faunus (Broderip, 1841) (original combination)
  » Species Helix (Cochlostyla) frater Férussac, 1821 accepted as Helicostyla frater (Férussac, 1821) (original combination)
  » Species Helix (Cochlostyla) oomorpha G. B. Sowerby I, 1841 accepted as Phoenicobius oomorphus (G. B. Sowerby I, 1841) (original combination)
  » Species Helix (Cochlostyla) orbitulus G. B. Sowerby I, 1841 accepted as Cochlodryas orbitula (G. B. Sowerby I, 1841) (original combination)
  » Species Helix (Cochlostyla) pardalis Férussac, 1821 accepted as Dryptus pardalis (Férussac, 1821) (original combination)
  » Species Helix (Cochlostyla) pithogaster Férussac, 1821 accepted as Helicostyla pithogaster (Férussac, 1821) (original combination)
  » Species Helix (Cochlostyla) sarcinosa Broderip, 1841 accepted as Helicobulinus sarcinosa (Férussac, 1821) (junior homonym of Helix sarcinosa Ferussac, 1821)
  » Species Helix (Cochlostyla) taunaisii Férussac, 1822 accepted as Thaumastus taunaisii (Férussac, 1822) (original combination)
  » Species Helix (Cochlostyla) ticaonica Broderip, 1841 accepted as Helicostyla ticaonica (Broderip, 1841) (original combination)
Subgenus Helix (Codringtonia) Kobelt, 1898 accepted as Codringtonia Kobelt, 1898 (original rank)
Subgenus Helix (Coelospira) Ancey, 1886 accepted as Averellia Ancey, 1887 (invalid; not Hall, 1863, Averellia is a replacement name)
Subgenus Helix (Coliolus) Tapparone Canefri, 1886 accepted as Coliolus Tapparone Canefri, 1886
Subgenus Helix (Conulus) Fitzinger, 1833 accepted as Euconulus Reinhardt, 1883 (Invalid: junior homonym of Conulus Leske, 1778 [Echinodermata])
  » Species Helix (Conulus) barnardensis Brazier, 1876 accepted as Coneuplecta calculosa (A. Gould, 1852) (junior synonym)
  » Species Helix (Conulus) bidens Chemnitz accepted as Perforatella bidentata (Gmelin, 1791) (unavailable name: published in a work rejected by ICZN direction 1)
  » Species Helix (Conulus) chersinella Dall, 1866 accepted as Pristiloma chersinella (Dall, 1866)
  » 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 Kaliella microconus (Mousson, 1865) (junior synonym)
  » Species Helix (Conulus) nepeanensis Brazier, 1876 accepted as Sodaleta nepeanensis (Brazier, 1876) (original combination)
  » Species Helix (Conulus) pampini Cox, 1868 accepted as Coneuplecta pampini (Cox, 1868) (original combination)
  » Species Helix (Conulus) parvissima Legrand, 1871 accepted as Trocholaoma parvissima (Legrand, 1871) (original combination)
  » Species Helix (Conulus) porti Brazier, 1876 accepted as Pupisoma porti (Brazier, 1876) (original combination)
  » Species Helix (Conulus) reedei Brazier, 1876 accepted as Coneuplecta calculosa (A. Gould, 1852) (junior synonym)
  » Species Helix (Conulus) russelli Brazier, 1875 accepted as Sodaleta russelli (Brazier, 1875) (original name)
  » Species Helix (Conulus) starkei Brazier, 1876 accepted as Serostena starkei (Brazier, 1876) (original combination)
  » Species Helix (Conulus) subturritula G. Nevill & H. Nevill, 1871 accepted as Nesokaliella subturritula (G. Nevill & H. Nevill, 1871) (original combination)
  » Species Helix (Conulus) liardeti Brazier, 1872 (uncertain > taxon inquirendum)
  » Species Helix (Conulus) medinensis Dautzenberg, 1890 (uncertain > taxon inquirendum)
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 L. Pfeiffer, 1850 accepted as Crystallopsis tricolor (L. 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 (G. B. Sowerby III, 1890) (original combination)
Subgenus Helix (Corilla) H. Adams & A. Adams, 1855 accepted as Corilla H. Adams & A. Adams, 1855
  » Species Helix (Corilla) charpentieri L. Pfeiffer, 1854 accepted as Corilla adamsi (Gude, 1914) (superseded combination)
  » Species Helix (Corilla) damarensis H. Adams, 1870 accepted as Sculptaria damarensis (H. Adams, 1870) (original combination)
  » Species Helix (Corilla) erronea Albers, 1853 accepted as Corilla erronea (Albers, 1853) (superseded combination)
  » Species Helix (Corilla) hiniduensis H. Nevill, 1871 (unaccepted > nomen nudum)
  » Species Helix (Corilla) humberti Brot, 1864 accepted as Corilla humberti (Brot, 1864) (superseded combination)
  » Species Helix (Corilla) odontophora Benson, 1865 accepted as Corilla odontophora (Benson, 1865) (superseded combination)
  » Species Helix (Corilla) pettos Martens, 1868 accepted as Endothyrella pinacis (Benson, 1859) (junior synonym)
  » Species Helix (Corilla) rivolii Deshayes, 1832 accepted as Corilla rivolii (Deshayes, 1832) (superseded combination)
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 (Coronaria) R. T. Lowe, 1852 accepted as Geomitra Swainson, 1840 (junior synonym)
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)
Subgenus Helix (Crenea) Albers, 1850 accepted as Creneatachea Zilch, 1960 † (junior homonym of Crenea Risso, 1826)
Subgenus Helix (Cristigibba) Tapparone Canefri, 1883 accepted as Cristigibba Tapparone Canefri, 1883 (original rank)
  » Species Helix (Cristigibba) musgravei E. A. Smith, 1895 accepted as Cristigibba musgravei (E. A. Smith, 1895) (basionym)
    » Variety Helix (Cristigibba) musgravei var. efasciata Schepman, 1918 (uncertain > taxon inquirendum)
  » Species Helix (Cristigibba) rhodomphala Tapparone Canefri, 1883 accepted as Cristigibba rhodomphala (Tapparone Canefri, 1883) (basionym)
  » Species Helix (Cristigibba) leptocheila Tapparone Canefri, 1884 (uncertain > taxon inquirendum, use in recent literature currently undocumented)
Subgenus Helix (Cryptaxis) R. T. Lowe, 1855 accepted as Leptaxis (Cryptaxis) R. T. Lowe, 1855
Subgenus Helix (Cryptomphalus) Charpentier, 1837 accepted as Cornu Born, 1778 (junior synonym)
Subgenus Helix (Crystallus) R. T. Lowe, 1855 accepted as Vitrea Fitzinger, 1833
Subgenus Helix (Cyrtochilus) F. Sandberger, 1875 † accepted as Cyrtochilus F. Sandberger, 1875 †
Subgenus Helix (Daedalochila) Beck, 1837 accepted as Daedalochila Beck, 1837 (original rank)
Subgenus Helix (Dentellaria) Schumacher, 1817 accepted as Dentellaria Schumacher, 1817 (unaccepted > superseded combination)
  » Species Helix (Dentellaria) badia Férussac, 1832 accepted as Pleurodonte guadeloupensis (Pilsbry, 1889) (invalid; not Gmelin, 1791)
  » Species Helix (Dentellaria) brachystoma F. Sandberger, 1872 † accepted as Cyrtochilus expansilabris (F. Sandberger, 1858) † (junior subjective synonym)
  » Species Helix (Dentellaria) josephinae (Férussac, 1832) accepted as Pleurodonte josephinae (Férussac, 1832) (unaccepted > superseded combination)
  » Species Helix (Dentellaria) latidentata K. Miller, 1878 accepted as Isomeria bituberculata (L. Pfeiffer, 1853) (unaccepted > junior subjective synonym)
  » Species Helix (Dentellaria) obesa H. Beck, 1837 accepted as Dentellaria obesa (H. Beck, 1837) (original combination)
  » Species Helix (Dentellaria) tridentula K. Miller, 1878 accepted as Isomeria bituberculata (L. Pfeiffer, 1853) (unaccepted > junior subjective synonym)
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 †
Subgenus Helix (Discula) R. T. Lowe, 1852 accepted as Discula R. T. Lowe, 1852 (original rank)
  » Species Helix (Discula) discina R. T. Lowe, 1852 accepted as Discula calcigena discina (R. T. Lowe, 1852) (original name)
  » Species Helix (Discula) multipunctata Mousson, 1872 accepted as Monilearia (Lyrula) multipunctata (Mousson, 1872)
  » Species Helix (Discula) poromphala R. T. Lowe, 1852 accepted as Discula polymorpha poromphala (R. T. Lowe, 1852) (basionym)
  » Species Helix (Discula) pulverulenta R. T. Lowe, 1861 accepted as Monilearia pulverulenta (R. T. Lowe, 1861) (original combination)
  » Species Helix (Discula) senilis R. T. Lowe, 1852 accepted as Discula polymorpha (R. T. Lowe, 1831) (invalid; not Morelet, 1851)
  » Species Helix (Discula) tabellata R. T. Lowe, 1852 accepted as Discula tabellata (R. T. Lowe, 1852) (original combination)
  » Species Helix (Discula) testudinalis R. T. Lowe, 1852 accepted as Testudodiscula testudinalis (R. T. Lowe, 1852) (basionym)
Subgenus Helix (Discus) Fitzinger, 1833 accepted as Discus Fitzinger, 1833 (superseded combination)
  » Species Helix (Discus) agnewi Legrand, 1871 accepted as Exquisitiropa agnewi (Legrand, 1871) (original combination)
  » Species Helix (Discus) biciliata L. Pfeiffer, 1855 accepted as Ruthvenia biciliata (L. Pfeiffer, 1855) (superseded combination)
  » Species Helix (Discus) clathratula L. Pfeiffer, 1850 accepted as Ruthvenia clathratula (L. Pfeiffer, 1850) (superseded combination)
  » Species Helix (Discus) coepta Legrand, 1871 accepted as Stenacapha hamiltoni (Cox, 1868) (junior synonym)
  » 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)
  » Species Helix (Discus) serratus (H. Adams, 1868) accepted as Priodiscus serratus (H. Adams, 1868) (superseded combination)
  » Species Helix (Discus) trifilosa L. Pfeiffer, 1854 accepted as Philalanka trifilosa (L. Pfeiffer, 1854) (superseded combination)
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) atkinsoni Legrand, 1871 accepted as Thryasona diemenensis (Cox, 1868) (junior synonym)
  » 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) daveyensis Legrand, 1871 accepted as Thryasona diemenensis (Cox, 1868) (junior synonym)
  » Species Helix (Discus) derelicta Legrand, 1871 accepted as Paralaoma caputspinulae (Reeve, 1852) (junior synonym)
  » Species Helix (Discus) fuscoradiata Legrand, 1871 accepted as Thryasona diemenensis (Cox, 1868) (junior synonym)
  » Species Helix (Discus) juliformis Legrand, 1871 accepted as Diemenoropa kingstonensis (Legrand, 1871) (junior synonym)
  » Species Helix (Discus) lomonti Brazier, 1876 accepted as Geodiscus lomonti (Brazier, 1876) (original combination)
  » Species Helix (Discus) macdonaldi Legrand, 1871 accepted as Diemenoropa kingstonensis (Legrand, 1871) (junior synonym)
  » Species Helix (Discus) marchianae Legrand, 1871 accepted as Thryasona diemenensis (Cox, 1868) (junior synonym)
  » Species Helix (Discus) occultus Legrand, 1871 accepted as Pedicamista coesus (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; nom nov. pro Helix ceralis Cox, 1873 nec Crosse, 1868)
  » Species Helix (Discus) vigens Legrand, 1871 accepted as Ammoniropa vigens (Legrand, 1871) (original combination)
  » Species Helix (Discus) levieuxi G. Nevill & H. Nevill, 1871 (uncertain > taxon inquirendum)
Subgenus Helix (Dorcasia) Gray, 1838 accepted as Dorcasia Gray, 1838
  » Species Helix (Dorcasia) blackalli Brazier, 1876 accepted as Gloreugenia blackalli (Brazier, 1876) (basionym)
  » Species Helix (Dorcasia) compta H. Adams, 1865 accepted as Vulnus compta (H. Adams, 1865) (basionym)
  » Species Helix (Dorcasia) fodiens (L. Pfeiffer, 1844) accepted as Bradybaena fodiens (L. Pfeiffer, 1844) (unaccepted generic combination)
    » Variety Helix (Dorcasia) fodiens var. cuyoensis Hidalgo, 1890 accepted as Bradybaena fodiens cuyoensis (Hidalgo, 1890) (variety; unaccepted genus combination)
  » Species Helix (Dorcasia) gypsina (Melvill & Ponsonby, 1891) accepted as Trigonephrus gypsinus (Melvill & Ponsonby, 1891) (original combination)
  » Species Helix (Dorcasia) inhluzana Melvill & Ponsonby, 1894 accepted as Natalina quekettiana quekettiana (Melvill & Ponsonby, 1893)
  » Species Helix (Dorcasia) namaquensis (Melvill & Ponsonby, 1891) accepted as Trigonephrus namaquensis (Melvill & Ponsonby, 1891) (original combination)
  » Species Helix (Dorcasia) porphyrostoma (Melvill & Ponsonby, 1891) accepted as Trigonephrus porphyrostoma (Melvill & Ponsonby, 1891) (original combination)
  » Species Helix (Dorcasia) scalpturita Benson, 1859 accepted as Bradybaena scalpturita (Benson, 1859) (unaccepted combination)
  » Species Helix (Dorcasia) similaris Férussac, 1822 accepted as Bradybaena similaris (Férussac, 1822) (unaccepted combination)
  » Species Helix (Dorcasia) subplicifera E. A. Smith, 1895 accepted as Dorcasidea subplicifera (E. A. Smith, 1895) (basionym)
  » Species Helix (Dorcasia) suffodiens O. Boettger, 1891 accepted as Bradybaena suffodiens (O. Boettger, 1891) (basionym)
  » Species Helix (Dorcasia) bolus Benson, 1856 (uncertain > taxon inquirendum)
  » Species Helix (Dorcasia) incauta E. A. Smith, 1895 (uncertain > taxon inquirendum)
  » Species Helix (Dorcasia) zoroaster Theobald, 1859 (uncertain > taxon inquirendum)
Subgenus Helix (Endodonta) Albers, 1850 accepted as Endodonta Albers, 1850
  » Species Helix (Endodonta) kororensis Beddome, 1889 accepted as Semperdon kororensis (Beddome, 1889) (original combination)
  » Species Helix (Endodonta) fuscozonata Beddome, 1889 represented as Helix fuscozonata Beddome, 1889
  » Species Helix (Endodonta) rotundus Godwin-Austen, 1914 (uncertain > taxon inquirendum)
Subgenus Helix (Epiphragmophora) Doering, 1875 accepted as Epiphragmophora Doering, 1875 (original rank)
Subgenus Helix (Epistylia) Swainson, 1840 accepted as Sagda H. Beck, 1837
Subgenus Helix (Eremina) L. Pfeiffer, 1855 accepted as Eremina L. Pfeiffer, 1855 (superseded generic combination)
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 (Eucampylaea) Westerlund, 1876 accepted as Campylaea H. Beck, 1837 (junior synonym)
Subgenus Helix (Euclasta) E. von Martens, 1877 accepted as Euclastaria Pilsbry, 1926
  » Species Helix (Euclasta) euclasta Shuttleworth, 1854 accepted as Euclastaria musicola euclasta (Shuttleworth, 1854) (unaccepted combination)
  » Species Helix (Euclasta) musicola Shuttleworth, 1854 accepted as Euclastaria musicola (Shuttleworth, 1854) (unaccepted combination)
  » Species Helix (Euclasta) velutina Lamarck, 1822 accepted as Aquebana velutina (Lamarck, 1822) (unaccepted combination)
  » Species Helix (Euclasta) portoricensis L. Pfeiffer, 1847 (uncertain > taxon inquirendum)
Subgenus Helix (Eucochlias) G. Nevill, 1878 accepted as Eucochlias G. Nevill, 1878
Subgenus Helix (Euhadra) Pilsbry, 1890 accepted as Euhadra Pilsbry, 1890
Subgenus Helix (Eulota) W. Hartmann, 1841 accepted as Eulota Hartmann, 1841 (unaccepted rank)
  » Species Helix (Eulota) interpres Westerlund, 1879 accepted as Xerolenta obvia (Menke, 1828) (junior synonym)
  » Species Helix (Eulota) jourdyi Morlet, 1886 accepted as Bradybaena jourdyi (Morlet, 1886) (original combination)
  » Species Helix (Eulota) nordenskioldi Westerlund, 1877 accepted as Lindholmomneme nordenskioldi (Westerlund, 1877) (original combination)
  » Species Helix (Eulota) orsinii Porro, 1841 accepted as Monacha orsini (Porro, 1841) (incorrect subsequent spelling and unaccepted combination)
    » Variety Helix (Eulota) orsinii var. umbrica Paulucci, 1878 (uncertain > taxon inquirendum)
  » Species Helix (Eulota) sprattiana De Stefani in De Stefani et al., 1891 † accepted as Monacha sprattiana (De Stefani in De Stefani et al., 1891) † (new combination)
  » Species Helix (Eulota) vignali Bavay & Dautzenberg, 1900 (uncertain > taxon inquirendum)
Subgenus Helix (Eulotella) E. von Martens, 1891 accepted as Bradybaena Beck, 1837 (junior synonym)
  » Species Helix (Eulotella) textoria E. von Martens, 1891 (uncertain > taxon inquirendum)
Subgenus Helix (Euomphalia) Westerlund, 1889 accepted as Euomphalia Westerlund, 1889 (original rank)
Subgenus Helix (Euparypha) W. Hartmann, 1843 accepted as Theba Risso, 1826 (unaccepted)
  » Species Helix (Euparypha) chudeaui Germain, 1908 accepted as Theba chudeaui (Germain, 1908) (basionym)
  » Species Helix (Euparypha) desertorum Forskål, 1775 accepted as Eremina desertorum (Forskål, 1775)
  » Species Helix (Euparypha) pisana (O. F. Müller, 1774) accepted as Theba pisana (O. F. Müller, 1774) (superseded generic combination)
    » Variety Helix (Euparypha) pisana var. alba Pallary, 1904 (uncertain > taxon inquirendum)
    » Variety Helix (Euparypha) pisana var. donelli Pallary, 1904 (uncertain > taxon inquirendum)
    » Variety Helix (Euparypha) pisana var. subplanata Pallary, 1900 (uncertain > taxon inquirendum)
  » Species Helix (Euparypha) seetzeni (L. Pfeiffer, 1847) accepted as Xerocrassa seetzeni (L. Pfeiffer, 1847)
Subgenus Helix (Eurycratera) H. Beck, 1837 accepted as Eurycratera H. Beck, 1837 (unaccepted)
  » Species Helix (Eurycratera) angulata Férussac, 1821 (unaccepted > nomen nudum)
  » 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)
  » Species Helix (Eurycratera) obliterata Férussac, 1822 accepted as Hispaniolana obliterata (Férussac, 1822) (unaccepted combination)
Subgenus Helix (Eurystoma) Albers, 1850 accepted as Trachia E. von Martens, 1860 (unaccepted)
  » Species Helix (Eurystoma) varnensis Toula, 1892 † (uncertain > taxon inquirendum)
Subgenus Helix (Eyryomphala) Beck, 1837 accepted as Discus Fitzinger, 1833 (unaccepted, junior synonym)
Subgenus Helix (Fruticicola) Held, 1838 accepted as Fruticicola Held, 1838 (unaccepted, considered a separate genus)
  » Species Helix (Fruticicola) adaequata Gredler, 1894 accepted as Trichochloritis adaequata (Gredler, 1894) (original combination)
  » Species Helix (Fruticicola) alveolus F. Sandberger, 1873 † accepted as Fruticicola alveolus (F. Sandberger, 1873) †
  » Species Helix (Fruticicola) apicalis Reuss, 1861 † accepted as Leucochroopsis apicalis (Reuss, 1861) † (new combination)
  » Species Helix (Fruticicola) aristata Krynicki, 1836 accepted as Euomphalia aristata (Krynicki, 1836) (superseded combination)
  » Species Helix (Fruticicola) arpatschaiana Mousson, 1873 accepted as Diplobursa pisiformis arpatschaiana (Mousson, 1873) (original combination)
  » Species Helix (Fruticicola) cardiostoma Kobelt, 1879 accepted as Satsuma cardiostoma (Kobelt, 1879) (basionym)
  » Species Helix (Fruticicola) cartusiana O. F. Müller, 1774 accepted as Monacha cartusiana (O. F. Müller, 1774) (unaccepted combination)
  » Species Helix (Fruticicola) cemenelea (Risso, 1826) accepted as Theba cemenelea Risso, 1826 (superseded combination)
  » Species Helix (Fruticicola) ciliata Studer, 1820 (unaccepted > nomen nudum, described as Helix ciliata Hartmann, 1821)
  » Species Helix (Fruticicola) cinctella Draparnaud, 1801 accepted as Helix cinctella Draparnaud, 1801 (superseded combination)
  » Species Helix (Fruticicola) circassica Mousson, 1863 accepted as Circassina frutis circassica (Mousson, 1863) (unaccepted rank)
  » 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) concinna A. Adams, 1868 accepted as Fruticicola concinna (A. Adams, 1868) (basionym)
  » Species Helix (Fruticicola) craspedocheila A. Adams, 1868 accepted as Euhadra craspedocheila (A. Adams, 1868) (basionym)
  » 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) erjaveci Brusina, 1870 accepted as Xerocampylaea erjaveci (Brusina, 1870) (original combination)
  » Species Helix (Fruticicola) everetti H. Adams, 1873 accepted as Helix everetti H. Adams, 1873 (basionym)
  » Species Helix (Fruticicola) fruticum O. F. Müller, 1774 accepted as Fruticicola fruticum (O. F. Müller, 1774) (unaccepted combination)
  » Species Helix (Fruticicola) gibbosa A. Adams, 1868 accepted as Satsuma gibbosa (A. Adams, 1868)
  » Species Helix (Fruticicola) globula Krynicki, 1838 (unaccepted > nomen nudum)
  » Species Helix (Fruticicola) goniostoma F. Sandberger, 1872 † accepted as Apula goniostoma (F. Sandberger, 1872) †
  » Species Helix (Fruticicola) hispidus Linnaeus, 1758 accepted as Trochulus hispidus (Linnaeus, 1758) (unaccepted combination)
  » Species Helix (Fruticicola) homalospira Reuss, 1861 † accepted as Pseudomonacha homalospira (Reuss, 1861) † (new combination)
  » Species Helix (Fruticicola) kalganensis Möllendorff, 1875 accepted as Cathaica subrugosa kalganensis (Möllendorff, 1874) (original combination)
  » Species Helix (Fruticicola) leptoloma F. Sandberger, 1858 † accepted as Leucochroopsis leptoloma (F. Sandberger, 1858) †
  » Species Helix (Fruticicola) mataianensis G. Nevill, 1878 accepted as Cathaica mataianensis (G. Nevill, 1878) (original 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) (invalid; not A. Adams & Angas, 1864)
  » Species Helix (Fruticicola) peculiaris A. Adams, 1868 accepted as Satsuma japonica peculiaris (A. Adams, 1868) (original combination)
  » Species Helix (Fruticicola) phaeozona E. von Martens, 1874 accepted as Cathaica phaeozona (E. von Martens, 1874) (superseded combination)
  » Species Helix (Fruticicola) plectotropis E. von Martens, 1864 accepted as Fruticicola plectotropis (E. von Martens, 1864)
  » Species Helix (Fruticicola) proba A. Adams, 1868 accepted as Aegista proba (A. Adams, 1868) (original combination)
  » Species Helix (Fruticicola) similaris Férussac, 1822 accepted as Bradybaena similaris (Férussac, 1822) (unaccepted combination)
  » Species Helix (Fruticicola) sphinctostoma A. Adams, 1868 accepted as Satsuma sphinctostoma (A. Adams, 1868) (original combination)
  » Species Helix (Fruticicola) strigella Draparnaud, 1801 accepted as Euomphalia strigella (Draparnaud, 1801) (unaccepted combination)
  » Species Helix (Fruticicola) subvillosa F. Sandberger, 1858 † accepted as Hochheimia subvillosa (F. Sandberger, 1858) †
  » Species Helix (Fruticicola) talischana E. von Martens, 1880 accepted as Monacha talischana (E. von Martens, 1880) (original combination)
  » Species Helix (Fruticicola) telonensis Mittré, 1842 accepted as Urticicola glabellus telonensis (Mittre, 1842)
  » Species Helix (Fruticicola) umbrosa C. Pfeiffer, 1828 accepted as Urticicola umbrosus (C. Pfeiffer, 1828) (unaccepted combination)
  » Species Helix (Fruticicola) vaceki Schlosser, 1907 † accepted as Apula goniostoma (F. Sandberger, 1872) † (junior subjective synonym)
  » Species Helix (Fruticicola) verrucosa Reinhardt, 1877 accepted as Lepidopisum verrucosum (Reinhardt, 1877) (original combination)
  » Species Helix (Fruticicola) muscicola (temporary name)
  » Species Helix (Fruticicola) aconae Issel, 1872 (uncertain > taxon inquirendum)
  » Species Helix (Fruticicola) despecta A. Adams, 1868 (uncertain, use in recent literature not established by editor)
  » Species Helix (Fruticicola) diaega Bourguignat, 1877 (uncertain > taxon inquirendum)
  » Species Helix (Fruticicola) gelida Bourguignat, 1877 (uncertain > taxon inquirendum)
  » Species Helix (Fruticicola) moutoni Mittré, MS (uncertain > taxon inquirendum)
    » Variety Helix (Fruticicola) moutoni var. subfossilis G. Nevill, 1880 † (uncertain > taxon inquirendum)
  » Species Helix (Fruticicola) pseudoglobula Mousson, 1873 (uncertain > taxon inquirendum)
  » Species Helix (Fruticicola) semirugosa Kobelt, 1884 (uncertain > taxon inquirendum, use in recent literature currently undocumented)
  » Species Helix (Fruticicola) sphaerulata Reinhardt, 1883 (uncertain > taxon inquirendum)
Subgenus Helix (Fruticocampylaea) Kobelt, 1871 accepted as Fruticocampylaea Kobelt, 1871 (unaccepted, original rank)
  » Species Helix (Fruticocampylaea) adshariensis Lindholm, 1913 accepted as Hesseola adshariensis (Lindholm, 1913) (basionym)
  » Species Helix (Fruticocampylaea) eichwaldi L. Pfeiffer, 1846 accepted as Caucasigena eichwaldi (L. Pfeiffer, 1846)
  » Species Helix (Fruticocampylaea) gerassimovi Lindholm, 1913 accepted as Caucasigena eichwaldi rengarteni (Lindholm, 1913) (junior synonym)
  » Species Helix (Fruticocampylaea) gredleri Hilber, 1882 accepted as Cathaica przewalskii gredleri (Hilber, 1882) (original combination and rank)
  » Species Helix (Fruticocampylaea) ioannis Mortillet, 1854 accepted as Caucasocressa ioannis (Mortillet, 1854) (chresonym)
  » 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 (Fruticoconus) Möllendorff, 1882 accepted as Fruticoconus Möllendorff, 1882 (unaccepted, original rank)
  » Species Helix (Fruticoconus) trochulus Möllendorff, 1882 accepted as Ganesella schomburgiana (Möllendorff, 1884) (invalid, non Helix trochulus Adams)
Subgenus Helix (Fruticotrochus) Kobelt, 1879 accepted as Fruticotrochus Kobelt, 1879 (unaccepted)
Subgenus Helix (Galactochilus) F. Sandberger, 1875 accepted as Polydontes (Galactochilus) F. Sandberger, 1875 (unaccepted, basionym)
Subgenus Helix (Galaxias) Beck, 1837 accepted as Trigonephrus Pilsbry, 1905 (unaccepted, invalid: junior homonym of Galaxias Cuvier, 1816)
Subgenus Helix (Ganesella) W. T. Blanford, 1863 accepted as Ganesella W. T. Blanford, 1863 (unaccepted, original rank)
Subgenus Helix (Gastrodonta) Albers, 1850 accepted as Gastrodonta Albers, 1850 (unaccepted, original rank)
Subgenus Helix (Geostrochus) van Hasselt, 1823 accepted as Geotrochus van Hasselt, 1823 (unaccepted, incorrect subsequent spelling)
Subgenus Helix (Geotrochus) van Hasselt, 1823 accepted as Geotrochus van Hasselt, 1823 (unaccepted, unaccepted rank)
  » Species Helix (Geotrochus) adonis Angas, 1870 accepted as Papuina adonis (Angas, 1870) (original combination)
  » Species Helix (Geotrochus) bantamensis E.A. Smith, 1887 accepted as Ganesella bantamensis (E. A. Smith, 1887) (basionym)
  » Species Helix (Geotrochus) blanfordi H. Adams, 1865 accepted as Helix (Geotrochus) blanfordiana H. Adams, 1869 (Invalid: junior primary homonym of Helix blanfordi Theobald, 1859: Helix (Geotrochus) blanfordiana H. Adams, 1869 is a replacement name.)
  » Species Helix (Geotrochus) blanfordiana H. Adams, 1869 accepted as Papuina blanfordiana (H. Adams, 1869) (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) chapmani Cox, 1879 accepted as Letitia chapmani (Cox, 1879) (original combination)
  » Species Helix (Geotrochus) cleryi Récluz, 1851 accepted as Helix (Carocolla) cleryi Récluz, 1851
  » Species Helix (Geotrochus) dampieri Angas, 1869 accepted as Papuina dampieri (Angas, 1869) (original combination)
  » Species Helix (Geotrochus) deidamia Angas, 1870 accepted as Papuina meta (L. Pfeiffer, 1856) (junior synonym)
  » Species Helix (Geotrochus) donnaisabellae Angas, 1869 accepted as Papuina donnaisabellae (Angas, 1869) (original combination)
  » Species Helix (Geotrochus) gelata Cox, 1873 accepted as Papuina gelata (Cox, 1873) (original name)
  » 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) hedleyi E. A. Smith, 1892 accepted as Papuina hedleyi (E. A. Smith, 1892) (basionym)
  » Species Helix (Geotrochus) heimburgi Brancsik, 1891 accepted as Papustyla hindei (Cox, 1886) (junior synonym)
  » Species Helix (Geotrochus) hermione Angas, 1870 accepted as Papuina hermione (Angas, 1870) (original combination)
  » Species Helix (Geotrochus) labillardierei E. A. Smith, 1884 accepted as Trochonanina helicinoides labillardierei (E. A. Smith, 1884) (basionym)
  » Species Helix (Geotrochus) lacteolata E. A. Smith, 1887 accepted as Canefriula lacteolata (E. A. Smith, 1887) (basionym)
  » Species Helix (Geotrochus) latiaxis E. A. Smith, 1883 accepted as Letitia latiaxis (E. A. Smith, 1883) (basionym)
  » 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 Megalacron novaegeorgiensis (Cox, 1870) (junior synonym)
  » Species Helix (Geotrochus) niahensis Godwin-Austen, 1891 accepted as Geotrochus niahensis (Godwin-Austen, 1891) (original combination)
  » Species Helix (Geotrochus) papillifera Klika, 1891 † accepted as Metacampylaea papillifera (Klika, 1891) † (new combination)
  » Species Helix (Geotrochus) perakensis Crosse, 1879 accepted as Ganesella perakensis (Crosse, 1879) (basionym)
  » Species Helix (Geotrochus) philomela Angas, 1872 accepted as Papuina philomela (Angas, 1872) (original combination)
  » Species Helix (Geotrochus) poirieri Tapparone-Canefri, 1878 accepted as Papuina blanfordiana (H. Adams, 1869)
  » Species Helix (Geotrochus) redempta Cox, 1873 accepted as Papuina redempta (Cox, 1873) (original combination)
  » Species Helix (Geotrochus) rufofilosa Bock, 1881 accepted as Ganesella rufofilosa (Bock, 1881) (original combination)
  » Species Helix (Geotrochus) strabo Brazier, 1876 accepted as Rhynchotrochus strabo (Brazier, 1876) (original combination)
  » Species Helix (Geotrochus) subflava Godwin-Austen, 1891 accepted as Ganesella subflava (Godwin-Austen, 1891) (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) tigaensis Godwin-Austen, 1891 accepted as Ganesella tigaensis (Godwin-Austen, 1891) (original combination)
  » 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)
  » Species Helix (Geotrochus) zeno Brazier, 1876 accepted as Letitia zeno (Brazier, 1876) (original combination)
Subgenus Helix (Glaphyra) Albers, 1850 accepted as Vallonia Risso, 1826 (unaccepted, Invalid: junior homonym of Glaphyra Newman, 1840 [Coleoptera])
Subgenus Helix (Glyptorhagada) Pilsbry, 1891 accepted as Glyptorhagada Pilsbry, 1890 (unaccepted, original rank)
Subgenus Helix (Goniodiscus) Fitzinger, 1833 accepted as Gonyodiscus Fitzinger, 1833 (unaccepted, misspelling)
Subgenus Helix (Gonostoma) Held, 1838 accepted as Helicodonta A. Férussac, 1821 (unaccepted, invalid: junior homonym of Gonostoma Rafinesque, 1810)
  » Species Helix (Gonostoma) althi Łomnicki, 1886 † accepted as Palaeotachea silvana (Klein, 1853) † (junior subjective synonym)
  » Species Helix (Gonostoma) baudinensis E. A. Smith, 1893 accepted as Baudinella baudinensis (E. A. Smith, 1893) (basionym)
  » Species Helix (Gonostoma) binodata Möllendorff, 1886 accepted as Pseudaspasita binodata (Möllendorff, 1886) (original combination)
  » 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) contorta Ziegler accepted as Lindholmiola corcyrensis (Rossmässler, 1838) (junior synonym)
  » Species Helix (Gonostoma) diodonta A. Férussac, 1832 accepted as Soosia diodonta (A. Férussac, 1832) (unaccepted combination)
  » Species Helix (Gonostoma) diplomphala Möllendorff, 1885 accepted as Amphicoelina diplomphala (Möllendorff, 1885) (original combination)
  » Species Helix (Gonostoma) godarti Michaud, 1855 † accepted as Prosoosia godarti (Michaud, 1855) †
    » Variety Helix (Gonostoma) 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)
  » 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) obvoluta O. F. Müller, 1774 accepted as Helicodonta obvoluta (O. F. Müller, 1774) (superseded combination)
  » Species Helix (Gonostoma) osculum Thomä, 1845 † accepted as Klikia osculum (Thomä, 1845) †
  » 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) sublenticula F. Sandberger, 1858 † accepted as Canariella lapicidella (Thomä, 1845) † (junior subjective synonym)
  » Species Helix (Gonostoma) sublenticuloides Łomnicki, 1886 † accepted as Canariella sublenticuloides (Łomnicki, 1886) † (new combination)
  » Species Helix (Gonostoma) tenuispirata Łomnicki, 1886 † accepted as Caracollina barreri (Bourguignat, 1881) † (junior subjective synonym)
  » Species Helix (Gonostoma) columnae Kobelt, 1889 (uncertain > taxon inquirendum)
  » Species Helix (Gonostoma) negropontina Westerlund, 1898 (uncertain > taxon inquirendum)
Subgenus Helix (Grandipatula) Cossmann, 1889 † accepted as Grandipatula Cossmann, 1889 † (unaccepted)
Subgenus Helix (Hadra) Martens, 1860 accepted as Hadra E. von Martens, 1860 (unaccepted)
  » 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) bourkensis E. A. Smith, 1891 accepted as Galadistes bourkensis (E. A. Smith, 1891) (original combination)
  » 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) flindersi A. Adams & Angas, 1864 accepted as Sinumelon flindersi (A. Adams & Angas, 1864) (original combination)
  » Species Helix (Hadra) fodinalis Bednall, 1892 accepted as Sinumelon fodinale (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) obliqirugosa E. A. Smith, 1894 accepted as Xanthomelon obliquirugosum (E. A. Smith, 1894) (basionym)
  » Species Helix (Hadra) oscarensis Cox, 1892 accepted as Westraltrachia oscarensis (Cox, 1892) (original combination)
  » Species Helix (Hadra) pachychilus E. A. Smith, 1893 accepted as Camaena pachychila Pilsbry, 1893 (objective junior synonym)
  » Species Helix (Hadra) pancala Schmacker & O. Boettger, 1891 accepted as Pancala batanica pancala (Schmacker & O. Boettger, 1891) (original combination)
  » Species Helix (Hadra) parsoni Cox, 1872 accepted as Figuladra incei curtisiana (L. Pfeiffer, 1864) (junior synonym)
  » Species Helix (Hadra) patruelis A. Adams & Angas, 1864 accepted as Cupedora patruelis (A. Adams & 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) stirophora E. A. Smith, 1895 accepted as Sulcobasis stirophora (E. A. Smith, 1895) (basionym)
  » Species Helix (Hadra) subgibbera Möllendorff, 1885 accepted as Camaena subgibbera (Möllendorff, 1885) (original combination)
  » 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) vulpis Gredler, 1887 accepted as Camaena vulpis (Gredler, 1887) (original combination)
  » Species Helix (Hadra) xanthoderma Möllendorff, 1882 accepted as Camaena hainanensis xanthoderma (Möllendorff, 1882) (unaccepted combination and rank)
  » Species Helix (Hadra) yeppoonensis Beddome, 1897 accepted as Figuladra incei lessoni (Pfeiffer, 1846) (junior synonym)
  » Species Helix (Hadra) sanctaeluciae E. A. Smith, 1889 (uncertain > taxon inquirendum)
Subgenus Helix (Helicella) Gray, 1847 accepted as Oxychilus Fitzinger, 1833 (unaccepted, Invalid: junior homonym of Helicella A. Férussac, 1821)
  » 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) carnicolor Férussac, 1821 accepted as Hemitrochus varians (Menke, 1829) (nomen nudum)
  » Species Helix (Helicella) cretica L. Pfeiffer, 1841 accepted as Xerocrassa cretica (L. Pfeiffer, 1841) (original name)
  » Species Helix (Helicella) draparnaldi H. Beck, 1837 accepted as Oxychilus draparnaudi (H. Beck, 1837) (replacement name)
  » 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) richardii Férussac, 1821 accepted as Allogona profunda (Say, 1821) (nomen nudum)
  » Species Helix (Helicella) sepulcralis Férussac, 1821 accepted as Ampelita sepulcralis (Férussac, 1821) (original combination)
  » Species Helix (Helicella) planorbitanus De Gregorio, 1880 † (uncertain > taxon inquirendum)
Subgenus Helix (Helicella) A. Férussac, 1821 accepted as Helicella A. Férussac, 1821 (unaccepted, original rank)
  » Species Helix (Helicella) bicolor R. T. Lowe, 1831 accepted as Lemniscia michaudi (Deshayes, 1832) (homonym; non Helix bicolor J. Adams, 1800)
  » Species Helix (Helicella) bifrons R. T. Lowe, 1831 accepted as Janulus bifrons (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) calva R. T. Lowe, 1831 accepted as Caseolus (Caseolus) calvus (R. T. Lowe, 1831)
  » Species Helix (Helicella) cheiranthicola R. T. Lowe, 1831 accepted as Discula cheiranthicola (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) compacta R. T. Lowe, 1831 accepted as Caseolus innominatus compactus (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) compar R. T. Lowe, 1831 accepted as Disculella compar (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) consors R. T. Lowe, 1831 accepted as Caseolus consors (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) dealbata R. T. Lowe, 1831 accepted as Caseolus hartungi (Albers, 1852) (name preoccupied; non Helix dealbata Say, 1821)
    » Variety Helix (Helicella) dealbata var. granulata R. T. Lowe, 1831 accepted as Caseolus hartungi hartungi (Albers, 1852) (junior synonym; preoccupied by Helix granulata Alder 1830)
    » Variety Helix (Helicella) dealbata var. laevis R. T. Lowe, 1831 accepted as Caseolus hartungi hartungi (Albers, 1852) (homonym; non Helix laevis W. Wood, 1828)
  » Species Helix (Helicella) depauperata R. T. Lowe, 1831 accepted as Spirorbula depauperata (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) diaphanella Krynicki, 1836 accepted as Oxychilus diaphanellus (Krynicki, 1836) (original combination)
  » Species Helix (Helicella) diaphora Westerlund, 1896 accepted as Archaica apollinis (E. von Martens, 1882) (junior synonym)
  » Species Helix (Helicella) duplicata R. T. Lowe, 1831 accepted as Hystricella bicarinata bicarinata (G. B. Sowerby I, 1824) (junior synonym)
  » Species Helix (Helicella) echinulata R. T. Lowe, 1831 accepted as Hystricella echinulata (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) exilis A. Férussac, 1821 accepted as Ariophanta bistrialis (H. Beck, 1837) (Invalid: junior homonym of Helix exilis O. F. Müller, 1774; Nanina bistrialis is a replacement name)
  » Species Helix (Helicella) lauta R. T. Lowe, 1831 accepted as Cernuella virgata (Da Costa, 1778) (junior synonym)
  » Species Helix (Helicella) lentiginosa R. T. Lowe, 1831 accepted as Actinella lentiginosa lentiginosa (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) leptosticta R. T. Lowe, 1831 accepted as Caseolus leptostictus leptostictus (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) lurida R. T. Lowe, 1831 accepted as Domunculifex littorinella (Mabille, 1883) (invalid: junior homonym of Helix lurida C. Pfeiffer, 1828)
  » Species Helix (Helicella) obtecta R. T. Lowe, 1831 accepted as Spirorbula obtecta (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) oxytropis R. T. Lowe, 1831 accepted as Wollastonaria oxytropis (R. T. Lowe, 1831)
  » Species Helix (Helicella) paupercula R. T. Lowe, 1831 accepted as Steenbergia paupercula (R. T. Lowe, 1831) (basionym)
  » Species Helix (Helicella) pilosa Sandri & Kučik, 1846 accepted as Liburnica (Liburnica) setosa setosa (A. Férussac, 1832) (junior synonym)
  » Species Helix (Helicella) polymorpha R. T. Lowe, 1831 accepted as Discula polymorpha (R. T. Lowe, 1831) (original name)
    » Variety Helix (Helicella) polymorpha var. arenicola R. T. Lowe, 1831 accepted as Discula polymorpha arenicola (R. T. Lowe, 1831) (original name)
    » Variety Helix (Helicella) polymorpha var. attrita R. T. Lowe, 1831 accepted as Discula attrita (R. T. Lowe, 1831) (original name)
    » Variety Helix (Helicella) polymorpha var. calcigena R. T. Lowe, 1831 accepted as Discula calcigena (R. T. Lowe, 1831) (original name)
    » Variety Helix (Helicella) polymorpha var. depressiuscula R. T. Lowe, 1831 accepted as Discula polymorpha depressiuscula (R. T. Lowe, 1831) (original name)
    » Variety Helix (Helicella) polymorpha var. irrasa R. T. Lowe, 1831 accepted as Discula polymorpha polymorpha (R. T. Lowe, 1831) (junior synonym)
    » Variety Helix (Helicella) polymorpha var. pulvinata R. T. Lowe, 1831 accepted as Discula pulvinata (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicella) portosanctana G. B. Sowerby I, 1824 accepted as Pseudocampylaea portosanctanae (G. B. Sowerby I, 1824) (superseded combination)
  » Species Helix (Helicella) punctulata G. B. Sowerby I, 1824 accepted as Caseolus punctulatus (G. B. Sowerby I, 1824) (superseded combination)
  » Species Helix (Helicella) pusilla R. T. Lowe, 1831 accepted as Paralaoma servilis (Shuttleworth, 1852) (name preoccupied; non Helix pusilla Vallot, 1801)
  » Species Helix (Helicella) similaris Férussac, 1821 accepted as Bradybaena similaris (Férussac, 1822) (nomen nudum)
  » Species Helix (Helicella) subdentata A. Férussac, 1821 accepted as Theba subdentata (A. Férussac, 1821) (basionym)
Subgenus Helix (Helicigona) Férussac, 1821 accepted as Helicigona A. Férussac, 1821 (unaccepted)
Subgenus Helix (Helicodonta) A. Férussac, 1821 accepted as Helicodonta A. Férussac, 1821 (unaccepted)
  » Species Helix (Helicodonta) arcta R. T. Lowe, 1831 accepted as Actinella arcta (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicodonta) arridens R. T. Lowe, 1831 accepted as Actinella arridens (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicodonta) badia Férussac, 1832 accepted as Pleurodonte guadeloupensis (Pilsbry, 1889) (invalid: junior homonym of Helix badia Gmelin, 1791)
  » Species Helix (Helicodonta) contortula Krynicki, 1837 accepted as Vitrea contortula (Krynicki, 1837) (original combination)
  » Species Helix (Helicodonta) diodonta A. Férussac, 1832 accepted as Soosia diodonta (A. Férussac, 1832) (original combination)
  » Species Helix (Helicodonta) fausta R. T. Lowe, 1831 accepted as Actinella fausta (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicodonta) julia Férussac, 1821 accepted as Lucerna lucerna (O. F. Müller, 1774) (junior synonym)
  » Species Helix (Helicodonta) knoxvillina Férussac, 1821 accepted as Mesodon elevatus (Say, 1821) (nomen nudum)
  » Species Helix (Helicodonta) lamarckii Férussac, 1821 accepted as Lucerna lamarckii (Férussac, 1821)
  » Species Helix (Helicodonta) parilis Férussac, 1822 accepted as Pleurodonte parilis (Férussac, 1822) (basionym)
  » Species Helix (Helicodonta) texasiana S. Moricand, 1834 accepted as Linisa texasiana (S. Moricand, 1834)
Subgenus Helix (Helicogena) A. Férussac, 1821 accepted as Helix Linnaeus, 1758 (unaccepted, junior synonym)
  » Species Helix (Helicogena) adanensis Kobelt, 1896 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
    » Subspecies Helix (Helicogena) adanensis globulosa Kobelt, 1904 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
    » Subspecies Helix (Helicogena) adanensis pyrami Kobelt, 1904 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
  » Species Helix (Helicogena) afficta A. Férussac, 1821 accepted as Canariella planaria (Lamarck, 1822) (nomen nudum)
  » Species Helix (Helicogena) afficta A. Férussac, 1832 accepted as Canariella planaria (Lamarck, 1822) (junior synonym)
  » Species Helix (Helicogena) ancyrensis Kobelt, 1905 accepted as Helix lucorum Linnaeus, 1758 (junior synonym)
  » Species Helix (Helicogena) auricoma Férussac, 1821 accepted as Zachrysia auricoma (Férussac, 1821)
  » 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) berytensis Kobelt, 1905 accepted as Helix antiochiensis Kobelt, 1896 (junior synonym)
  » Species Helix (Helicogena) bowdichiana A. Férussac, 1832 † accepted as Caseolus (Helicomela) bowdichianus (A. Férussac, 1832) †
  » Species Helix (Helicogena) bulveriana R. T. Lowe, 1831 accepted as Callina bulverii (W. Wood, 1828) (junior synonym)
  » Species Helix (Helicogena) caelatura A. Férussac, 1821 accepted as Plegma caelatura (A. Férussac, 1821) (original combination)
  » Species Helix (Helicogena) castanostoma Germain, 1921 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
  » Species Helix (Helicogena) cavata Mousson, 1854 accepted as Helix engaddensis Bourguignat, 1852
  » Species Helix (Helicogena) ciliciana Kobelt, 1904 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
  » Species Helix (Helicogena) contundata Férussac, 1821 accepted as Helix (Helicogena) contusa Férussac, 1821 (unaccepted > incorrect original spelling)
  » Species Helix (Helicogena) contusa Férussac, 1821 accepted as Streptaxis contusus (Férussac, 1821) (original combination)
  » Species Helix (Helicogena) crispata Férussac, 1821 accepted as Polydontes crispatus (Férussac, 1821) (basionym)
  » Species Helix (Helicogena) despotina Kobelt, 1906 accepted as Helix philibinensis Rossmässler, 1839 (junior synonym)
  » Species Helix (Helicogena) duschekensis Kobelt, 1906 accepted as Helix buchii Dubois de Montpéreux, 1840 (junior synonym)
  » Species Helix (Helicogena) eduardi Kobelt, 1905 accepted as Helix antiochiensis Kobelt, 1896 (junior synonym)
  » Species Helix (Helicogena) engaddensis Bourguignat, 1852 accepted as Helix engaddensis Bourguignat, 1852
  » Species Helix (Helicogena) erubescens R. T. Lowe, 1831 accepted as Leptaxis simia (A. Férussac, 1832) (name preoccupied; non Helix erubescens Solander, 1786)
  » Species Helix (Helicogena) everekensis Kobelt, 1907 accepted as Helix lucorum Linnaeus, 1758 (junior synonym)
  » Species Helix (Helicogena) furva R. T. Lowe, 1831 accepted as Leptaxis furva (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicogena) grothei Kobelt, 1905 accepted as Helix pronuba Westerlund, 1879 (junior synonym)
  » Species Helix (Helicogena) groviana A. Férussac, 1832 accepted as Leptaxis groviana (A. Férussac, 1832) (basionym)
  » Species Helix (Helicogena) halepensis Kobelt, 1905 accepted as Helix lucorum Linnaeus, 1758 (junior synonym)
  » Species Helix (Helicogena) heligmoida d'Orbigny, 1835 accepted as Systrophia heligmoida (d'Orbigny, 1835) (basionym)
  » Species Helix (Helicogena) kisonis Kobelt, 1905 accepted as Helix engaddensis Bourguignat, 1852
  » Species Helix (Helicogena) kolasinensis Kobelt, 1906 accepted as Helix dormitoris (Kobelt, 1898) (unjustified emendation of the original name)
  » Species Helix (Helicogena) mississiensis Kobelt, 1909 accepted as Helix fathallae Nägele, 1901 (junior synonym)
  » Species Helix (Helicogena) modesta A. Férussac, 1822 accepted as Hemicycla modesta (A. Férussac, 1822) (basionym)
  » Species Helix (Helicogena) nicaeensis A. Férussac, 1821 accepted as Helix nicaeensis A. Férussac, 1821 (emendation of Helix niceensis A. Férussac, 1821)
  » Species Helix (Helicogena) niceensis A. Férussac, 1821 accepted as Helix nicaeensis A. Férussac, 1821 (original name)
  » Species Helix (Helicogena) otaheitana Férussac, 1821 accepted as Ryssota otaheitana (Férussac, 1821) (original combination)
  » Species Helix (Helicogena) pelasgica Kobelt, 1904 accepted as Helix figulina Rossmässler, 1839 (junior synonym)
    » Subspecies Helix (Helicogena) pelasgica cosensis Kobelt, 1904 accepted as Helix nucula Mousson, 1854 (junior synonym)
    » Subspecies Helix (Helicogena) pelasgica rhodensis Kobelt, 1904 accepted as Helix nucula Mousson, 1854 (junior synonym)
  » Species Helix (Helicogena) phlebophora R. T. Lowe, 1831 accepted as Leptaxis nivosa (G. B. Sowerby I, 1824) (junior synonym)
  » Species Helix (Helicogena) pivensis Kobelt, 1906 accepted as Helix dormitoris (Kobelt, 1898) (junior synonym)
  » Species Helix (Helicogena) pomatia Linnaeus, 1758 accepted as Helix pomatia Linnaeus, 1758
  » Species Helix (Helicogena) pseudopomatia Kobelt, 1903 accepted as Helix fathallae Nägele, 1901 (junior synonym)
  » Species Helix (Helicogena) quinquefasciata Kobelt, 1905 accepted as Helix lucorum Linnaeus, 1758 (junior synonym)
  » Species Helix (Helicogena) raddei O. Boettger, 1886 accepted as Helix albescens Rossmässler, 1839 (junior synonym)
  » Species Helix (Helicogena) rueppelli Kobelt, 1904 accepted as Helix pronuba Westerlund, 1879 (junior synonym)
  » Species Helix (Helicogena) secernenda (Rossmässler, 1847) accepted as Helix secernenda Rossmässler, 1847
    » Subspecies Helix (Helicogena) secernenda dimidiata Kobelt, 1906 accepted as Helix secernenda Rossmässler, 1847 (junior synonym)
    » Subspecies Helix (Helicogena) secernenda kormosi Kobelt, 1906 accepted as Helix secernenda Rossmässler, 1847 (junior synonym)
    » Subspecies Helix (Helicogena) secernenda njegusensis Kobelt, 1906 accepted as Helix secernenda Rossmässler, 1847 (junior synonym)
    » Subspecies Helix (Helicogena) secernenda subalbescens Kobelt, 1906 accepted as Helix secernenda Rossmässler, 1847 (junior synonym)
    » Subspecies Helix (Helicogena) secernenda subligata Kobelt, 1906 accepted as Helix secernenda Rossmässler, 1847 (junior synonym)
    » Subspecies Helix (Helicogena) secernenda subobtusata Kobelt, 1906 accepted as Helix secernenda Rossmässler, 1847 (junior synonym)
  » Species Helix (Helicogena) similaris Férussac, 1822 accepted as Bradybaena similaris (Férussac, 1822) (basionym)
  » Species Helix (Helicogena) speideli O. Boettger, 1907 accepted as Helix philibinensis Rossmässler, 1839 (junior synonym)
  » Species Helix (Helicogena) stolacensis Kobelt, 1906 accepted as Helix dormitoris (Kobelt, 1898) (junior synonym)
  » Species Helix (Helicogena) sturanyi Kobelt, 1906 accepted as Helix dormitoris (Kobelt, 1898) (junior synonym)
  » Species Helix (Helicogena) subtilis R. T. Lowe, 1831 accepted as Caracollina lenticula (Michaud, 1831) (original name)
  » Species Helix (Helicogena) thracica Kobelt, 1906 accepted as Helix philibinensis Rossmässler, 1839 (junior synonym)
  » Species Helix (Helicogena) undata R. T. Lowe, 1831 accepted as Leptaxis groviana groviana (A. Férussac, 1832) (name preoccupied; non Helix undata Gmelin, 1791)
  » Species Helix (Helicogena) undulata Férussac, 1821 accepted as Hispaniolana crispata (Férussac, 1821) (invalid: junior homonym of Helix undulata Gmelin, 1791)
  » Species Helix (Helicogena) volensis Kobelt, 1906 accepted as Helix pelagonesica (H. Rolle, 1898) (junior synonym)
  » Species Helix (Helicogena) webbiana R. T. Lowe, 1831 accepted as Lampadia webbiana (R. T. Lowe, 1831) (original name)
  » Species Helix (Helicogena) wohlberedti Kobelt, 1905 accepted as Helix vladica (Kobelt, 1898) (junior synonym)
  » Species Helix (Helicogena) critica Kobelt, 1903 (uncertain > taxon inquirendum, use in recent literature currently undocumented)
  » Species Helix (Helicogena) turricula K. Ali-Zade, 1954 † (uncertain > taxon inquirendum)
Subgenus Helix (Helicomela) R. T. Lowe, 1855 accepted as Caseolus (Helicomela) R. T. Lowe, 1855 (unaccepted, basionym)
Subgenus Helix (Helicophanta) A. Férussac, 1821 accepted as Helicophanta A. Férussac, 1821 (unaccepted, original rank)
Subgenus Helix (Helicostyla) Férussac, 1821 accepted as Cochlostyla Férussac, 1821 (unaccepted, original rank)
Subgenus Helix (Helocogena) [sic] accepted as Helicogena A. Férussac, 1821 (unaccepted, misspelling)
Subgenus Helix (Hemicycla) Swainson, 1840 accepted as Hemicycla Swainson, 1840 (unaccepted)
Subgenus Helix (Hemiplecta) Albers, 1850 accepted as Hemiplecta Albers, 1850 (unaccepted)
Subgenus Helix (Hemistenotrema) O. Boettger, 1897 † accepted as Hemistenotrema O. Boettger, 1897 † (unaccepted)
Subgenus Helix (Hemitrochus) Swainson, 1840 accepted as Hemitrochus Swainson, 1840 (unaccepted, unaccepted combination)
Subgenus Helix (Hispidella) R. T. Lowe, 1852 accepted as Actinella (Hispidella) R. T. Lowe, 1852 (unaccepted, basionym)
  » Species Helix (Hispidella) deusta R. T. Lowe, 1861 (uncertain > taxon inquirendum)
Subgenus Helix (Hyalina) S. Studer, 1820 accepted as Vitrina Draparnaud, 1801 (unaccepted, junior objective synonym)
  » Species Helix (Hyalina) euristhmia Slavík, 1869 † accepted as Esuinella nana (A. Braun in Walchner, 1851) † (tentative junior subjective synonym)
  » Species Helix (Hyalina) impressa F. Sandberger, 1862 † accepted as Oxychilus subcellarium (Thomä, 1845) † (junior subjective synonym)
  » Species Helix (Hyalina) invasa L. Pfeiffer, 1855 accepted as Stauroglypta anthoniana (C. B. Adams, 1849) (junior synonym)
  » Species Helix (Hyalina) mendica Slavík, 1869 † accepted as Oxychilus mendicus (Slavík, 1869) † (new combination)
  » Species Helix (Hyalina) monroensis Lewis, 1871 accepted as Paravitrea placentula (Shuttleworth, 1852)
  » Species Helix (Hyalina) nelsonensis Brazier, 1871 accepted as Prolesophanta nelsonensis (Brazier, 1871) (basionym)
Subgenus Helix (Hyalinia) Charpentier, 1837 accepted as Oxychilus Fitzinger, 1833 (unaccepted, junior synonym)
  » Species Helix (Hyalinia) exulata E. A. Smith, 1884 (uncertain > taxon inquirendum)
Subgenus Helix (Hygromia) Risso, 1826 accepted as Hygromia Risso, 1826 (unaccepted)
  » 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 (unaccepted, original rank)
Subgenus Helix (Iberus) Montfort, 1810 accepted as Iberus Montfort, 1810 (unaccepted)
  » Species Helix (Iberus) berkeleii R. T. Lowe, 1861 accepted as Hemicycla berkeleii (R. T. Lowe, 1861) (original combination)
  » Species Helix (Iberus) buelowi Maltzan, 1886 accepted as Marmorana scabriuscula buelowi (Maltzan, 1886) (basionym)
  » Species Helix (Iberus) circeja Kobelt, 1903 accepted as Marmorana serpentina circeja (Kobelt, 1903) (basionym)
  » Species Helix (Iberus) delgadoi Roman, 1907 † accepted as Iberus delgadoi (Roman, 1907) †
  » Species Helix (Iberus) dschulfensis [sic] accepted as Levantina bellardi (Mousson, 1854) (misspelling of original species name Helix dschulfensii Dubois, 1857)
  » Species Helix (Iberus) gualtieranus Linnaeus, 1758 accepted as Iberus gualtieranus (Linnaeus, 1758) (unaccepted combination)
  » Species Helix (Iberus) melii Kobelt, 1903 accepted as Marmorana serpentina circeja (Kobelt, 1903) (junior synonym)
  » Species Helix (Iberus) merita Mousson, 1872 † accepted as Hemicycla merita (Mousson, 1872) †
  » Species Helix (Iberus) muralis O. F. Müller, 1774 accepted as Marmorana muralis (O. F. Müller, 1774) (unaccepted combination)
  » Species Helix (Iberus) olcesei Pallary, 1899 accepted as Rossmaessleria scherzeri olcesei (Pallary, 1899) (original combination)
  » Species Helix (Iberus) richarzi Schlosser, 1907 † accepted as Papillotopsis richarzi (Schlosser, 1907) † (new combination)
  » Species Helix (Iberus) rollei Maltzan, 1886 accepted as Marmorana muralis insularis (Benoit, 1857) (presumed synonym)
  » Species Helix (Iberus) semitecta Mousson, 1872 † accepted as Hemicycla semitecta (Mousson, 1872) †
  » Species Helix (Iberus) sicanoides (Kobelt, 1881) accepted as Rossmaessleria scherzeri sicanoides (Kobelt, 1881) (superseded generic combination)
  » Species Helix (Iberus) strigata A. Férussac, 1821 accepted as Marmorana signata umbrica (Mabille, 1867) (homonym; non Helix strigata O. F. Müller, 1774)
  » Species Helix (Iberus) villica Paulucci, 1882 accepted as Tyrrheniberus villicus (Paulucci, 1882) (original combination)
  » Species Helix (Iberus) viola Kobelt, 1889 accepted as Rossmaessleria scherzeri viola (Kobelt, 1889) (superseded generic combination)
  » Species Helix (Iberus) weberi Pallary, 1904 accepted as Rossmaessleria scherzeri boettgeri (Kobelt, 1889) (original combination)
  » Species Helix (Iberus) wollastoni R. T. Lowe, 1852 accepted as Leptaxis wollastoni (R. T. Lowe, 1852) (original name)
Subgenus Helix (Irus) R. T. Lowe, 1852 accepted as Spirorbula R. T. Lowe, 1852 (unaccepted, junior synonym)
Subgenus Helix (Isaurica) Kobelt, 1901 accepted as Isaurica Kobelt, 1901 (unaccepted, original rank)
Subgenus Helix (Isognostoma) Fitzinger, 1833 accepted as Isognomostoma Fitzinger, 1833 (unaccepted, incorrect subsequent spelling and unaccepted rank)
Subgenus Helix (Isomeria) Albers, 1850 accepted as Isomeria Albers, 1850 (unaccepted, original rank)
  » Species Helix (Isomeria) equestrata Germain, 1907 accepted as Isomeria globosa (Broderip, 1832) (not J. Moricand, 1858)
  » Species Helix (Isomeria) fordiana Pilsbry, 1889 accepted as Isomeria fordiana (Pilsbry, 1889) (original combination)
  » Species Helix (Isomeria) gealei E. A. Smith, 1877 accepted as Isomeria gealei (E. A. Smith, 1877) (original combination)
  » Species Helix (Isomeria) granulatissima K. Miller, 1878 accepted as Isomeria kolbergi (K. Miller, 1878) (unaccepted > junior subjective synonym)
  » Species Helix (Isomeria) kolbergi K. Miller, 1878 accepted as Isomeria kolbergi (K. Miller, 1878) (original combination)
  » Species Helix (Isomeria) loxensis K. Miller, 1879 accepted as Isomeria hartwegi (L. Pfeiffer, 1846) (unaccepted > junior subjective synonym)
  » Species Helix (Isomeria) meyeri Kobelt, 1894 accepted as Isomeria meyeri (Kobelt, 1894) (original combination)
  » Species Helix (Isomeria) parietidentata K. Miller, 1878 accepted as Isomeria cymatodes (L. Pfeiffer, 1852) (unaccepted > junior subjective synonym)
  » Species Helix (Isomeria) peritropis Pilsbry, 1889 accepted as Isomeria continua (Reeve, 1854) (junior synonym)
  » Species Helix (Isomeria) scalena E. von Martens, 1881 accepted as Isomeria scalena (E. von Martens, 1881) (original combination)
  » Species Helix (Isomeria) wolfi Reibisch, 1896 accepted as Isomeria aequatoriana (Hidalgo, 1867) (junior synonym)
  » Species Helix (Isomeria) faunus Philippi, 1851 (uncertain > unassessed)
Subgenus Helix (Isthmia) Gray, 1821 accepted as Vertigo (Isthmia) Gray, 1821 (unaccepted, original name)
Subgenus Helix (Jacosta) Gray, 1821 accepted as Xerosecta Monterosato, 1892 (unaccepted, invalid: Placed on Index)
  » Species Helix (Jacosta) amphiconus Maltzan, 1883 accepted as Xerocrassa amphiconus (Maltzan, 1883) (original combination)
  » Species Helix (Jacosta) aspasta Westerlund, 1896 accepted as Cathaica cavimargo (E. von Martens, 1879) (junior synonym)
  » Species Helix (Jacosta) euphacodes Maltzan, 1883 accepted as Xerocrassa siderensis (Maltzan, 1883) (junior synonym)
  » Species Helix (Jacosta) fallaciosa Férussac, 1832 accepted as Trachia fallaciosa (Férussac, 1832) (superseded combination)
  » Species Helix (Jacosta) gautieri Germain, 1908 accepted as Xerophila gautieri (Germain, 1908)
  » Species Helix (Jacosta) huidobroi Azpeitia, 1925 accepted as Xerotricha huidobroi (Azpeitia, 1925) (original combination)
  » Species Helix (Jacosta) moraguesi Kobelt, 1883 accepted as Xerocrassa moraguesi (Kobelt, 1883) (original combination)
  » Species Helix (Jacosta) siderensis Maltzan, 1883 accepted as Xerocrassa siderensis (Maltzan, 1883) (original combination)
  » Species Helix (Jacosta) siphnica Kobelt, 1883 accepted as Xerocrassa siphnica (Kobelt, 1883) (original name)
  » Species Helix (Jacosta) sphakiota Maltzan, 1883 accepted as Xerocrassa mesostena (Westerlund, 1879) (junior synonym)
  » Species Helix (Jacosta) subcalcarata Nägele, 1903 accepted as Helicopsis subcalcarata (Nägele, 1903) (original combination)
Subgenus Helix (Janira) Albers, 1850 accepted as Oreobba Pilsbry, 1894 (unaccepted, Invalid: junior homonym of Janira Leach, 1814 [Crustacea]; Oreooba is a replacement name)
Subgenus Helix (Janulus) R. T. Lowe, 1852 accepted as Janulus R. T. Lowe, 1852 (unaccepted, original rank)
Subgenus Helix (Jasonella) Lindholm, 1927 accepted as Jasonella Lindholm, 1927 (unaccepted, new combination)
Subgenus Helix (Jeanneretia) L. Pfeiffer, 1877 accepted as Jeanneretia L. Pfeiffer, 1877 (unaccepted, original rank)
Subgenus Helix (Kaliella) W. T. Blanford, 1863 accepted as Kaliella W. T. Blanford, 1863 (unaccepted)
  » Species Helix (Kaliella) peliosanthi Mörch, 1872 accepted as Kaliella peliosanthi (Mörch, 1872) (original combination)
Subgenus Helix (Katostoma) R. T. Lowe, 1855 accepted as Leptaxis (Katostoma) R. T. Lowe, 1855 (unaccepted, basionym)
Subgenus Helix (Labyrinthus) Beck, 1837 accepted as Labyrinthus H. Beck, 1837 (unaccepted)
Subgenus Helix (Leiocheila) Albers, 1850 accepted as Eurycratera H. Beck, 1837 (unaccepted, objective junior synonym)
Subgenus Helix (Lemniscia) R. T. Lowe, 1855 accepted as Lemniscia R. T. Lowe, 1855 (unaccepted)
Subgenus Helix (Leptaxis) R. T. Lowe, 1852 accepted as Leptaxis R. T. Lowe, 1852 (unaccepted)
  » Species Helix (Leptaxis) digna Mousson, 1872 † accepted as Hemicycla digna (Mousson, 1872) †
  » Species Helix (Leptaxis) erubescens R. T. Lowe, 1831 accepted as Leptaxis simia (A. Férussac, 1832) (name preoccupied; non Helix erubescens Solander, 1786)
  » Species Helix (Leptaxis) fluctuosa R. T. Lowe, 1852 † accepted as Leptaxis fluctuosa (R. T. Lowe, 1852) † (original combination)
  » Species Helix (Leptaxis) hyaena R. T. Lowe, 1852 accepted as Leptaxis simia hyaena (R. T. Lowe, 1852) (basionym)
  » Species Helix (Leptaxis) leonina R. T. Lowe, 1852 accepted as Leptaxis groviana leonina (R. T. Lowe, 1852) (basionym)
  » Species Helix (Leptaxis) membranacea R. T. Lowe, 1852 accepted as Leptaxis membranacea (R. T. Lowe, 1852) (original combination)
  » Species Helix (Leptaxis) psammophora R. T. Lowe, 1852 † accepted as Leptaxis psammophora (R. T. Lowe, 1852) †
  » Species Helix (Leptaxis) vulcania R. T. Lowe, 1852 accepted as Leptaxis groviana vulcania (R. T. Lowe, 1852) (basionym)
  » Species Helix (Leptaxis) craticulata C. T. Lowe, 1852 (uncertain > taxon inquirendum)
Subgenus Helix (Leucochroa) H. Beck, 1837 accepted as Theba Risso, 1826 (unaccepted, junior synonym)
Subgenus Helix (Levantina) Kobelt, 1871 accepted as Levantina Kobelt, 1871 (unaccepted)
  » 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)
  » 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 Assyriella longinqua Schütt & Subai, 1996 (preoccupied name, non Helix dohrni Paulucci, 1882)
  » Species Helix (Levantina) praecellens Nägele, 1901 accepted as Amanica praecellens (Nägele, 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)
  » Species Helix (Levantina) chrysostomi Rolle, 1894 (uncertain > taxon inquirendum)
  » Species Helix (Levantina) gertrudis Rolle, 1894 (uncertain > taxon inquirendum)
  » Species Helix (Levantina) lapithoensis Rolle, 1894 (uncertain > taxon inquirendum)
Subgenus Helix (Limicolarius) Beck, 1837 accepted as Limicolaria Schumacher, 1817 (unaccepted, unjustified emendation of Limicolaria)
Subgenus Helix (Liochila) Martens, 1860 accepted as Leiocheila Albers, 1850 (unaccepted, unjustified emendation of Leiocheila)
Subgenus Helix (Lucerna) Swainson, 1840 accepted as Lucerna Swainson, 1840 (unaccepted, unaccepted combination)
  » Species Helix (Lucerna) acuta Lamarck, 1816 accepted as Lucerna lamarckii (Férussac, 1821) (junior synonym)
  » Species Helix (Lucerna) lindsleyana Vendryes, 1899 accepted as Dentellaria atavus (L. Pfeiffer, 1859) (junior synonym)
  » Species Helix (Lucerna) tridentina Férussac, 1832 accepted as Dentellaria tridentina (Férussac, 1832) (unaccepted combination)
  » Species Helix (Lucerna) vendryesi Cockerell, 1892 accepted as Dentellaria sloaneana (L. Pfeiffer, 1868) (junior synonym)
Subgenus Helix (Lucilla) R. T. Lowe, 1852 accepted as Lucilla R. T. Lowe, 1852 (unaccepted, original rank)
Subgenus Helix (Lyrula) Wollaston, 1878 accepted as Monilearia (Lyrula) Wollaston, 1878 (unaccepted)
Subgenus Helix (Lysinoe) A. Adams & H. Adams, 1855 accepted as Lysinoe H. Adams & A. Adams, 1855 (unaccepted, unaccepted combination)
  » Species Helix (Lysinoe) queretaroana Dall, 1897 accepted as Humboldtiana queretaroana (Dall, 1897) (original combination)
  » Species Helix (Lysinoe) sebastiana Dall, 1897 accepted as Lysinoe sebastiana (Dall, 1897) (original combination)
Subgenus Helix (Macrocyclis) Beck, 1837 accepted as Macrocyclis H. Beck, 1837 (unaccepted)
Subgenus Helix (Macularia) Albers, 1850 accepted as Macularia Albers, 1850 (unaccepted)
  » Species Helix (Macularia) atlasica Mousson, 1873 accepted as Loxana beaumieri (Mousson, 1873)
  » Species Helix (Macularia) bailloni Kobelt, 1887 accepted as Loxana bailloni (Kobelt, 1887) (original combination)
  » Species Helix (Macularia) beaumieri Mousson, 1873 accepted as Loxana beaumieri (Mousson, 1873) (basionym)
  » 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) callirhoe Rolle, 1894 accepted as Isaurica callirhoe (Rolle, 1894) (original combination)
  » Species Helix (Macularia) eckingensis F. Sandberger, 1875 † accepted as Cepaea eckingensis (F. Sandberger, 1875) † (new combination)
  » Species Helix (Macularia) elsana F. Sandberger, 1880 † accepted as Eobania vermiculata elsana (F. Sandberger, 1880) †
  » Species Helix (Macularia) majoris De Stefani, 1880 † accepted as Marmorana majoris (De Stefani, 1880) †
  » Species Helix (Macularia) moussoniana Wollaston, 1878 † accepted as Hemicycla moussoniana (Wollaston, 1878) †
  » Species Helix (Macularia) niciensis Férussac, 1821 accepted as Helix niciensis Férussac, 1821 (superseded combination)
    » Variety Helix (Macularia) niciensis var. colorata G. Nevill, 1880 (uncertain > taxon inquirendum)
    » Variety Helix (Macularia) niciensis var. primitiva G. Nevill, 1880 † (uncertain > taxon inquirendum)
    » Variety Helix (Macularia) niciensis var. speluncarum G. Nevill, 1880 † (uncertain > taxon inquirendum)
  » 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) rerayana Mousson, 1873 accepted as Loxana rerayana (Mousson, 1873) (original combination)
  » Species Helix (Macularia) saponacea R. T. Lowe, 1861 accepted as Hemicycla saponacea (R. T. Lowe, 1861) (original name)
  » Species Helix (Macularia) subvermiculata F. Sandberger, 1875 † accepted as Palaeotachea silvana (Klein, 1853) † (junior subjective synonym)
  » Species Helix (Macularia) torresi Roman, 1907 † accepted as Pseudotachea torresi (Roman, 1907) † (new combination)
  » Species Helix (Macularia) tyraica Łomnicki, 1886 † accepted as Palaeotachea silvana (Klein, 1853) † (junior subjective synonym)
  » Species Helix (Macularia) vermiculata O.F. Müller, 1774 accepted as Eobania vermiculata (O. F. Müller, 1774)
  » Species Helix (Macularia) vittata O. F. Müller, 1774 accepted as Pseudotrachia vittata (O. F. Müller, 1774) (superseded combination)
  » Species Helix (Macularia) arichensis Kobelt, 1884 (uncertain > taxon inquirendum, use in recent literature currently undocumented)
  » Species Helix (Macularia) duriezi Kobelt, 1884 (uncertain > taxon inquirendum, use in recent literature currently undocumented)
  » Species Helix (Macularia) grossularia E. von Martens, 1900 (uncertain > taxon inquirendum, invalid; not Pfeiffer, 1861)
  » Species Helix (Macularia) praedisposita Mousson, 1873 (uncertain > taxon inquirendum)
Subgenus Helix (Maltzanella) P. Hesse, 1917 accepted as Maltzanella P. Hesse, 1917 (unaccepted)
  » Species Helix (Maltzanella) maltzani Kobelt, 1883 accepted as Maltzanella maltzani (Kobelt, 1883) (unaccepted combination)
Subgenus Helix (Marmorana) W. Hartmann, 1844 accepted as Marmorana W. Hartmann, 1844 (unaccepted)
  » Species Helix (Marmorana) atlasica Mousson, 1873 accepted as Helix (Macularia) atlasica Mousson, 1873 (superseded generic combination)
  » Species Helix (Marmorana) beaumieri Mousson, 1873 accepted as Helix (Macularia) beaumieri Mousson, 1873 (superseded generic combination)
  » Species Helix (Marmorana) soluta (Michaud, 1839) accepted as Alabastrina soluta (Michaud, 1839) (superseded generic combination)
Subgenus Helix (Merope) Martens, 1860 accepted as Helix Linnaeus, 1758 (unaccepted)
Subgenus Helix (Mesodon) A. Férussac, 1821 accepted as Mesodon Férussac, 1821 (unaccepted)
  » Species Helix (Mesodon) albolabris Say, 1817 accepted as Neohelix albolabris (Say, 1817) (unaccepted combination)
  » Species Helix (Mesodon) dallii Stearns in White, 1885 † accepted as Vespericola dallii (Stearns in White, 1885) † (new combination (cf.))
  » Species Helix (Mesodon) kiowaensis C. T. Simpson, 1888 accepted as Patera kiowaensis (C. T. Simpson, 1888)
  » Species Helix (Mesodon) lawae Lewis, 1874 accepted as Praticolella lawae (J. Lewis, 1874) (emendation)
  » Species Helix (Mesodon) lawii J. Lewis, 1874 accepted as Praticolella lawae (J. Lewis, 1874) (incorrect original spelling)
  » Species Helix (Mesodon) thyroides Say, 1817 accepted as Mesodon thyroidus (Say, 1817) (unaccepted combination; misspelling of original species name, Helix thyroidus Say, 1817)
  » Species Helix (Mesodon) columbiana (uncertain)
  » Species Helix (Mesodon) mullani (uncertain)
Subgenus Helix (Metodontia) Möllendorff, 1886 accepted as Metodontia Möllendorff, 1886 (unaccepted, original rank)
Subgenus Helix (Microconus) Strebel & Pfeffer, 1879 accepted as Microconus Strebel & Pfeffer, 1879 (unaccepted, unaccepted combination)
Subgenus Helix (Microcystis) Beck, 1838 accepted as Microcystis Beck, 1838 (unaccepted)
  » Species Helix (Microcystis) catletti Brazier, 1872 accepted as Innesoconcha catletti (Brazier, 1872) (original combination)
Subgenus Helix (Micromphalia) Ancey, 1882 accepted as Micromphalia Ancey, 1882 (unaccepted, original rank)
Subgenus Helix (Microphysa) E. von Martens, 1860 accepted as Hojeda H. B. Baker, 1926 (unaccepted)
Subgenus Helix (Microphyura) Ancey, 1882 accepted as Microphyura Ancey, 1882 (unaccepted, original rank)
Subgenus Helix (Mitra) Albers, 1850 accepted as Lampadia Albers, 1854 (unaccepted, invalid: junior homonym of Mitra Lamarck, 1798; Lampadia is a replacement name)
Subgenus Helix (Moellendorffia) Ancey, 1887 accepted as Moellendorffia Ancey, 1887 (unaccepted)
  » 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) erdmanni Schmacker & O. Boettger, 1894 accepted as Moellendorffiella erdmanni (Schmacker & O. Boettger, 1894) (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 (Bavay & Dautzenberg, 1899) (original combination)
Subgenus Helix (Monacha) Fitzinger, 1833 accepted as Monacha Fitzinger, 1833 (unaccepted)
Subgenus Helix (Monomphalus) Ancey, 1882 accepted as Monomphalus Ancey, 1882 (unaccepted, original rank)
Subgenus Helix (Mycena) Albers, 1850 accepted as Hemicycla Swainson, 1840 (unaccepted, objective junior synonym )
Subgenus Helix (Nanina) Gray, 1834 accepted as Nanina J. E. Gray, 1834 (unaccepted, superseded combination)
  » Species Helix (Nanina) atricolor Godwin-Austen, 1875 accepted as Macrochlamys atricolor (Godwin-Austen, 1875) (original combination)
  » Species Helix (Nanina) bilineata Godwin-Austen, 1876 accepted as Macrochlamys bilineata (Godwin-Austen, 1876) (basionym)
  » Species Helix (Nanina) cleamesi E. A. Smith, 1882 accepted as Kalidos cleamesi (E. A. Smith, 1882) (original combination)
  » Species Helix (Nanina) döhrniana L. Pfeiffer, 1860 accepted as Sarika dohrniana (L. Pfeiffer, 1860) (original combination)
  » Species Helix (Nanina) fragilis (T. Hutton, 1838) accepted as Macrochlamys fragilis (T. Hutton, 1838) (superseded combination)
  » Species Helix (Nanina) globosa Godwin-Austen, 1876 accepted as Cryptaustenia globosa (Godwin-Austen, 1876) (basionym)
  » Species Helix (Nanina) granaria Bock, 1881 accepted as Dyakia granaria (Bock, 1881) (original combination)
  » Species Helix (Nanina) irradiata Gould, 1846 accepted as Serpho kivi (Gray, 1843)
  » Species Helix (Nanina) maarseveeni Bock, 1881 accepted as Dyakia maarseveeni (Bock, 1881) (original combination)
  » Species Helix (Nanina) mouhoti L. Pfeiffer, 1860 accepted as Cryptozona mouhoti (L. Pfeiffer, 1860) (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) rubricata Gould, 1846 accepted as Helix rubricata A. Gould, 1846
  » Species Helix (Nanina) scorpio Gould, 1846 accepted as Orpiella scorpio (Gould, 1846) (original combination)
  » Species Helix (Nanina) shisha Godwin-Austen, 1875 accepted as Macrochlamys shisha (Godwin-Austen, 1875) (original combination)
  » Species Helix (Nanina) solidiuscula E. A. Smith, 1885 accepted as Orpiella solidiuscula (E. A. Smith, 1885) (original combination)
  » Species Helix (Nanina) caesia L. Pfeiffer, 1861 (uncertain > taxon inquirendum)
  » Species Helix (Nanina) ruida Gould, 1846 (uncertain > taxon inquirendum)
Subgenus Helix (Numidia) Issel, 1885 accepted as Xeroplana Monterosato, 1892 (unaccepted, invalid; not Forster, 1817 nor Cocco, 1832, Xerofalsa is a replacement name)
Subgenus Helix (Obba) Beck, 1837 accepted as Obba Beck, 1837 (unaccepted)
  » Species Helix (Obba) devincta Tapparone Canefri, 1884 accepted as Obba marginata devincta (Tapparone Canefri, 1884) (original combination)
  » Species Helix (Obba) goldiei Brazier, 1884 accepted as Meliobba goldiei (Brazier, 1884) (original 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)
  » Species Helix (Obba) parmula (Broderip, 1841) accepted as Obba parmula (Broderip, 1841) (unaccepted > superseded combination)
    » Variety Helix (Obba) parmula var. discus Deshayes, 1850 accepted as Obba parmula (Broderip, 1841) (unaccepted > junior subjective synonym)
  » Species Helix (Obba) sororcula E. von Martens, 1867 accepted as Obba marginata devincta (Tapparone Canefri, 1884) (invalid; not Benoit, 1859; Helix devincta is a replacement name)
Subgenus Helix (Obbinula) Stache, 1889 † accepted as Obbinula Stache, 1889 † (unaccepted)
Subgenus Helix (Ochthephila) Beck, 1837 accepted as Trochoidea T. Brown, 1827 (unaccepted, junior synonym)
Subgenus Helix (Omalonyx) d'Orbigny, 1838 accepted as Omalonyx d'Orbigny, 1838 (unaccepted, original rank)
Subgenus Helix (Ophiogyra) Albers, 1850 accepted as Polygyratia Gray, 1847 (unaccepted, objective junior synonym)
Subgenus Helix (Ophiospila) Ancey, 1887 accepted as Solaropsis H. Beck, 1837 (unaccepted)
Subgenus Helix (Pachya) Albers, 1850 accepted as Pachya Albers, 1850 (unaccepted, 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 & H. Fischer, 1907) (original combination)
  » Species Helix (Papuina) grata (Michelin, 1831) accepted as Rhynchotrochus grata (Michelin, 1831)
  » Species Helix (Papuina) groulti Dautzenberg, 1902 accepted as Papuina groulti (Dautzenberg, 1902) (basionym)
  » Species Helix (Papuina) ianthe E. A. Smith, 1891 accepted as Papuina ianthe (E. A. Smith, 1891) (basionym)
  » Species Helix (Papuina) lintschuana Kobelt, 1894 accepted as Meliobba lintschuana (Kobelt, 1894) (original combination)
  » Species Helix (Papuina) multizona (Lesson, 1831) accepted as Papuina multizona (Lesson, 1831)
  » Species Helix (Papuina) obiensis Dautzenberg, 1902 accepted as Papuina obiensis (Dautzenberg, 1902) (invalid; not E. von Martens, 1898, no replacement name has been proposed)
  » Species Helix (Papuina) pallens Bavay, 1908 accepted as Dendrotrochus leucotropis (Pfeiffer, 1861) (junior synonym)
  » Species Helix (Papuina) pelechystoma Tapparone Canefri, 1880 accepted as Papuina pelechystoma (Tapparone Canefri, 1880) (basionym)
  » Species Helix (Papuina) phaeostoma Martens, 1878 accepted as Megalacron phaeostoma (Pfeiffer, 1877)
  » Species Helix (Papuina) piliscus E. von Martens, 1898 accepted as Papuina piliscus (E. von Martens, 1898) (original combination)
  » 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)
  » Species Helix (Papuina) aerope E. A. Smith, 1891 (uncertain > taxon inquirendum)
  » Species Helix (Papuina) agnochelus E. A. Smith, 1892 (uncertain > taxon inquirendum)
  » Species Helix (Papuina) hero E. A. Smith, 1891 (uncertain > taxon inquirendum)
Subgenus Helix (Parachloraea) F. Sandberger, 1873 † accepted as Parachloraea F. Sandberger, 1873 † (unaccepted)
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 (Patera) Albers, 1850 accepted as Patera Albers, 1850
Subgenus Helix (Patula) Held, 1838 accepted as Discus Fitzinger, 1833 (unaccepted)
  » Species Helix (Patula) abyssinica Jickeli, 1874 accepted as Trachycystis abyssinica (Jickeli, 1874) (original combination)
  » Species Helix (Patula) amblygona Reinhardt, 1877 accepted as Punctum amblygonum (Reinhardt, 1877) (original combination)
  » Species Helix (Patula) coppingeri E. A. Smith, 1881 accepted as Radiodiscus coppingeri (E. A. Smith, 1881) (original combination)
  » Species Helix (Patula) cryophila E. von Martens, 1865 accepted as Toltecia pusilla (Lowe, 1831) (junior synonym)
  » Species Helix (Patula) depressa A. Adams, 1868 accepted as Discus pauper (A. 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) humilis Benson, 1838 accepted as Pyramidula humilis (Benson, 1838) (superseded combination)
  » Species Helix (Patula) jaenensis Clessin, 1882 accepted as Pyramidula jaenensis (Clessin, 1882)
  » Species Helix (Patula) lepta Westerlund, 1883 accepted as Punctum lepta (Westerlund, 1883) (original combination)
  » Species Helix (Patula) magellanica E. A. Smith, 1881 accepted as Radiodiscus magellanicus (E. A. Smith, 1881) (original combination)
  » Species Helix (Patula) margatensis Legrand, 1871 accepted as Tasmaphena ruga (Legrand, 1871) (junior synonym)
  » Species Helix (Patula) paludinaeformis F. Sandberger, 1858 † accepted as Acanthinula paludinaeformis (F. Sandberger, 1858) †
  » Species Helix (Patula) pygmaea Draparnaud, 1801 accepted as Punctum pygmaeum (Draparnaud, 1801) (unaccepted combination)
  » Species Helix (Patula) recurrecta Oppenheim, 1890 † accepted as Pfefferiola recurrecta (Oppenheim, 1890) †
  » Species Helix (Patula) rotundata O. F. Müller, 1774 accepted as Discus rotundatus (O. F. Müller, 1774) (unaccepted combination)
  » Species Helix (Patula) ruderata W. Hartmann, 1821 accepted as Discus ruderatus (W. Hartmann, 1821) (unaccepted combination)
  » Species Helix (Patula) rupestris Draparnaud, 1801 accepted as Pyramidula rupestris (Draparnaud, 1801) (unaccepted 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) solaria Menke, 1830 accepted as Discus perspectivus (Megerle von Mühlfeld, 1816) (junior synonym)
  » 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) stellata Brazier, 1871 accepted as Paralaoma caputspinulae (Reeve, 1852) (junior synonym)
  » Species Helix (Patula) stephensi Legrand, 1871 accepted as Stenacapha hamiltoni (Cox, 1868) (junior synonym)
  » Species Helix (Patula) stokesi E. A. Smith, 1884 accepted as Neophenacohelix lucetta (Hutton, 1884)
  » Species Helix (Patula) subteres Clessin, 1877 † accepted as Lucilla subteres (Clessin, 1877) † (new combination)
  » Species Helix (Patula) unwini Brazier, 1889 accepted as Hawaiia minuscula (A. 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)
  » Species Helix (Patula) abietina Bourguignat, 1864 (uncertain > taxon inquirendum)
  » Species Helix (Patula) elatior A. Adams, 1868 (uncertain, use in recent literature not established by editor)
  » Species Helix (Patula) perspectiva (uncertain)
Subgenus Helix (Pella) E. von Martens, 1860 accepted as Trachycystis Pilsbry, 1893 (unaccepted, invalid; non Stephens, 1832 [Coleoptera])
  » Species Helix (Pella) actinotrichia Melvill & Ponsonby, 1892 accepted as Chilocystis actinotrichia (Melvill & Ponsonby, 1892) (basionym)
  » 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) darnaudi L. Pfeiffer, 1857 accepted as Lejeania darnaudi (L. Pfeiffer, 1857)
  » 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)
  » 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)
  » Species Helix (Pella) whytei E. A. Smith, 1894 accepted as Zingis whytei (E. A. Smith, 1894) (basionym)
Subgenus Helix (Petasia) Beck, 1837 accepted as Perforatella Schlüter, 1838 (unaccepted, Invalid: junior homonym of Petasia Stephens, 1829 [Lepidoptera])
Subgenus Helix (Phaedra) Albers, 1850 accepted as Hemitrochus Swainson, 1840 (unaccepted, Invalid: junior homonym of Phaedra Horsfield, 1829 [Lepidoptera])
Subgenus Helix (Phania) 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 homonym)
Subgenus Helix (Philina) Albers, 1850 accepted as Obba 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)
Subgenus Helix (Pilsbrya) Ancey, 1887 accepted as Epiphragmophora (Pilsbrya) Ancey, 1887 (unaccepted, original rank)
Subgenus Helix (Pilula) E. von Martens, 1898 accepted as Pilula E. von Martens, 1898 (unaccepted)
Subgenus Helix (Pitys) H. Beck, 1837
  » Species Helix (Pitys) oparana H. Beck, 1837 (unaccepted > nomen nudum)
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 (Placentula) R. T. Lowe, 1852 accepted as Disculella Pilsbry, 1895 (unaccepted, invalid: junior homonym of Placentula Lamarck, 1822; Disculella is a replacement name.)
  » Species Helix (Placentula) micromphala R. T. Lowe, 1852 accepted as Caseolus micromphalus (R. T. Lowe, 1852) (basionym)
  » Species Helix (Placentula) spirorbis R. T. Lowe, 1852 accepted as Disculella spirulina (T. D. A. Cockerell, 1921) (invalid: junior homonym of Helix spirorbis Linnaeus, 1758; Geomitra spirulina is a replacement name)
  » Species Helix (Placentula) fictilis R. T. Lowe, 1852 (uncertain > taxon inquirendum)
Subgenus Helix (Plagioptycha) L. Pfeiffer, 1955 accepted as Plagioptycha L. Pfeiffer, 1855 (unaccepted, unaccepted combination)
  » Species Helix (Plagioptycha) maynardi Pilsbry, 1891 accepted as Plagioptycha maynardi (Pilsbry, 1891) (original combination)
  » Species Helix (Plagioptycha) diaphana Lamarck, 1822 (uncertain > taxon inquirendum)
  » Species Helix (Plagioptycha) riisei L. Pfeiffer, 1856 (uncertain > taxon inquirendum)
Subgenus Helix (Planispira) Beck, 1837 accepted as Planispira Beck, 1837 (unaccepted, original rank)
  » Species Helix (Planispira) buxtoni Brazier, 1880 accepted as Patrubella buxtoni (Brazier, 1880) (basionym)
  » Species Helix (Planispira) collis Mousson, 1881 accepted as Planispira zonaria (Linnaeus, 1767) (suspected synonym)
  » Species Helix (Planispira) exceptiuncula (Férussac, 1823) accepted as Planispira exceptiuncula (Férussac, 1823)
  » Species Helix (Planispira) halmaherica Strubell, 1892 accepted as Planispira halmaherica (Strubell, 1892)
  » Species Helix (Planispira) plexus Legrand, 1871 accepted as Stenacapha hamiltoni (Cox, 1868) (junior synonym)
  » Species Helix (Planispira) semiquadrivolvis E. von Martens, 1903 accepted as Planispira semiquadrivolvis (E. von Martens, 1903) (original combination)
  » Species Helix (Planispira) surrecta Kobelt, 1894 accepted as Planispira surrecta (Kobelt, 1894) (basionym)
  » Species Helix (Planispira) zonaria Linnaeus, 1767 accepted as Planispira zonaria (Linnaeus, 1767)
    » Variety Helix (Planispira) zonaria var. nitidiuscula O. Boettger, 1891 accepted as Planispira zonaria (Linnaeus, 1767) (junior synonym)
    » Variety Helix (Planispira) zonaria var. fasciolata Lesson (uncertain > taxon inquirendum, invalid; not Spix, 1827)
    » Variety Helix (Planispira) zonaria var. lineolata Martens (uncertain > taxon inquirendum)
    » Variety Helix (Planispira) zonaria var. martini Schepman, 1893 (uncertain)
  » Species Helix (Planispira) aspasia H. Adams, 1865 (uncertain > taxon inquirendum)
  » Species Helix (Planispira) deaniana J. Ford, 1890 (uncertain > taxon inquirendum)
Subgenus Helix (Platystoma) Ancey, 1882 accepted as Platyrhytida Cockerell, 1895 (unaccepted, invalid: junior homonym of Platystoma Meigen, 1803 [Diptera] and others; Saissetia and Platyrhytida are replacement names)
Subgenus Helix (Plebecula) R. T. Lowe, 1852 accepted as Actinella (Plebecula) R. T. Lowe, 1852 (unaccepted, basionym)
  » Species Helix (Plebecula) giramica R. T. Lowe, 1852 accepted as Actinella giramica (R. T. Lowe, 1852) (basionym)
  » Species Helix (Plebecula) vulgata R. T. Lowe, 1852 accepted as Plebecula nitidiuscula (G. B. Sowerby I, 1824) (unaccepted > junior homonym)
  » Species Helix (Plebecula) canicalensis C. T. Lowe, 1852 (uncertain > taxon inquirendum)
Subgenus Helix (Plectopylis) Benson, 1860 accepted as Plectopylis Benson, 1860 (unaccepted, original rank)
  » Species Helix (Plectopylis) andersoni W. T. Blanford, 1869 accepted as Hunyadiscus andersoni (W. T. Blanford, 1869) (basionym)
  » Species Helix (Plectopylis) brachydiscus Godwin-Austen, 1879 accepted as Chersaecia dextrorsa (Benson, 1860) (junior synonym)
  » 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) christinae H. Adams, 1870 accepted as Laeocathaica christinae (H. Adams, 1870)
  » Species Helix (Plectopylis) feddeni W. T. Blanford, 1865 accepted as Chersaecia feddeni (W. T. 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) giardi H. Fischer, 1898 accepted as Gudeodiscus giardi (H. Fischer, 1898) (basionym)
  » Species Helix (Plectopylis) karenorum W. T. Blanford, 1865 accepted as Plectopylis karenorum (W. T. 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. T. Blanford, 1870) (basionym)
  » Species Helix (Plectopylis) minor Godwin-Austen, 1879 accepted as Endothyrella minor (Godwin-Austen, 1879)
  » Species Helix (Plectopylis) munipurensis Godwin-Austen, 1875 accepted as Endothyrella serica (Godwin-Austen, 1875) (junior synonym)
  » Species Helix (Plectopylis) nagaensis Godwin-Austen, 1875 accepted as Chersaecia nagaensis nagaensis (Godwin-Austen, 1875) (original combination)
  » Species Helix (Plectopylis) oglei Godwin-Austen, 1879 accepted as Endothyrella oglei (Godwin-Austen, 1879) (basionym)
  » Species Helix (Plectopylis) perarcta W. T. Blanford, 1865 accepted as Chersaecia perarcta perarcta (W. T. Blanford, 1865) (original combination)
  » Species Helix (Plectopylis) ponsonbyi Godwin-Austen, 1888 accepted as Chersaecia feddeni (W. T. Blanford, 1865) (junior synonym)
  » Species Helix (Plectopylis) pseudophis Godwin-Austen, 1875 accepted as Chersaecia leiophis (Benson, 1860) (junior synonym)
  » Species Helix (Plectopylis) refugia Gould, 1846 accepted as Chersaecia refuga (Gould, 1846)
  » Species Helix (Plectopylis) schlumbergeri Morlet, 1886 accepted as Halongella schlumbergeri (Morlet, 1886) (basionym)
  » Species Helix (Plectopylis) secura Heude, 1890 accepted as Sicradiscus securus (Heude, 1890) (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) subchristinae Ancey, 1882 accepted as Laeocathaica christinae (H. Adams, 1870) (junior synonym)
  » Species Helix (Plectopylis) trilamellaris Godwin-Austen, 1875 accepted as Chersaecia shanensis (Stoliczka, 1873) (junior synonym)
Subgenus Helix (Plectotropis) E. von Martens, 1860 accepted as Plectotropis E. von Martens, 1860 (unaccepted)
  » Species Helix (Plectotropis) albocrenata Bavay & Dautzenberg, 1909 accepted as Helix (Plectotropis) albocrenatus Bavay & Dautzenberg, 1909 (specific epithet is not in agreement with generic name)
  » Species Helix (Plectotropis) albocrenatus Bavay & Dautzenberg, 1909 accepted as Plectotropis albocrenatus (Bavay & Dautzenberg, 1909) (original combination)
  » Species Helix (Plectotropis) applanata Möllendorff, 1884 accepted as Plectotropis applanata (Möllendorff, 1884)
  » Species Helix (Plectotropis) armstrongi E. A. Smith, 1895 accepted as Planispira armstrongi (E. A. Smith, 1895) (original combination)
  » Species Helix (Plectotropis) bonnieri H. Fischer, 1898 accepted as Plectotropis bonnieri (H. Fischer, 1898) (original combination)
  » Species Helix (Plectotropis) catostoma W. T. Blanford, 1869 accepted as Aegista catostoma (W. T. Blanford, 1869) (unaccepted combination)
  » Species Helix (Plectotropis) christinae H. Adams, 1870 accepted as Laeocathaica christinae (H. Adams, 1870) (basionym)
  » Species Helix (Plectotropis) conella A. Adams, 1868 accepted as Aegista (Plectotropis) conella (A. Adams, 1868) (basionym)
  » 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) gerlachi Martens, 1881 accepted as Plectotropis gerlachi (Martens, 1881) (unaccepted combination)
  » Species Helix (Plectotropis) gitaena Bavay & Dautzenberg, 1909 accepted as Aegista gitaena (Bavay & Dautzenberg, 1908) (original combination)
  » Species Helix (Plectotropis) howardi Angas, 1869 accepted as Contramelon howardi (Angas, 1869) (original combination)
  » Species Helix (Plectotropis) hupensis Gredler, 1885 accepted as Plectotropis hupensis (Gredler, 1885) (original combination)
  » Species Helix (Plectotropis) huttonii L. Pfeiffer, 1842 accepted as Landouria huttonii (L. Pfeiffer, 1842) (unaccepted combination)
  » Species Helix (Plectotropis) hyperteleia Morlet, 1892 accepted as Plectotropis hyperteleia (Morlet, 1892) (original combination)
  » Species Helix (Plectotropis) lautsi Schmacker & O. Boettger, 1890 accepted as Aegista lautsi (Schmacker & O. Boettger, 1890) (basionym)
  » Species Helix (Plectotropis) lofouana Möllendorff, 1888 accepted as Plectotropis lofouana (Möllendorff, 1888) (original combination)
  » Species Helix (Plectotropis) mariella H. Adams, 1870 accepted as Pseudiberus mariella (H. Adams, 1870) (basionym)
  » Species Helix (Plectotropis) ningpoensis O. Boettger, 1892 accepted as Plectotropis trichotropis ningpoensis (O. Boettger, 1892) (original combination and rank)
  » Species Helix (Plectotropis) oldhami Benson, 1859 accepted as Aegista oldhami (Benson, 1859) (unaccepted combination)
  » Species Helix (Plectotropis) phayrei Theobald, 1859 accepted as Aegista phayrei (Theobald, 1859) (unaccepted 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) shermani L. Pfeiffer, 1866 accepted as Videnoida shermani (L. Pfeiffer, 1866) (unaccepted combination)
  » Species Helix (Plectotropis) squamulifera Möllendorff, 1887 accepted as Plectotropis squamulifera (Möllendorff, 1887) (original combination)
  » Species Helix (Plectotropis) subconella Möllendorff, 1888 accepted as Plectotropis subconella (Möllendorff, 1888) (original combination)
  » Species Helix (Plectotropis) subinflexa Mabille, 1889 accepted as Aegista subinflexa (Mabille, 1889) (unaccepted combination)
  » Species Helix (Plectotropis) tapeina Benson, 1836 accepted as Aegista tapeina (Benson, 1836) (unaccepted combination)
    » Variety Helix (Plectotropis) tapeina var. akoutongensis Theobald, 1859 accepted as Plectotropis akowtongensis (Theobald, 1859) (incorrect subsequent spelling and unaccepted combination)
    » Variety Helix (Plectotropis) tapeina var. rotatoria L. Pfeiffer, 1842 accepted as Landouria rotatoria (L. Pfeiffer, 1842) (unaccepted combination)
    » Variety Helix (Plectotropis) tapeina var. bhamoensis G. Nevill, 1877 (uncertain > taxon inquirendum)
  » Species Helix (Plectotropis) trichotropis L. Pfeiffer, 1850 accepted as Plectotropis trichotropis (L. Pfeiffer, 1850) (unaccepted combination)
  » Species Helix (Plectotropis) trochula A. Adams, 1868 accepted as Neoaegista trochula (A. Adams, 1868) (original combination)
  » Species Helix (Plectotropis) visayana Möllendorff, 1888 accepted as Plectotropis visayana (Möllendorff, 1888) (original combination)
  » Species Helix (Plectotropis) xydaea Bavay & Dautzenberg, 1909 accepted as Plectotropis xydaea (Bavay & Dautzenberg, 1909) (original combination)
  » Species Helix (Plectotropis) chaudroni Bavay & Dautzenberg, 1909 (uncertain > taxon inquirendum, debated synonym)
  » Species Helix (Plectotropis) perplanata G. Nevill, 1877 (uncertain > taxon inquirendum)
Subgenus Helix (Pleurodonta) Albers, 1850 accepted as Pleurodonte Fischer von Waldheim, 1807 (unaccepted, unjustified emendation to original name, Pleurodonte Fischer von Waldheim, 1807)
Subgenus Helix (Poecilostola) Ancey, 1886 accepted as Pilsbrya Ancey, 1887 (unaccepted, invalid: junior homonym of Poecilostola Schiner, 1863 [Diptera]; Pilsbrya is a replacement name)
Subgenus Helix (Polydontes) Montfort, 1810 accepted as Polydontes Montfort, 1810 (unaccepted, unaccepted combination)
Subgenus Helix (Polygyra) Say, 1818 accepted as Polygyra Say, 1818 (unaccepted)
  » Species Helix (Polygyra) acutedentata W. G. Binney, 1858 accepted as Linisa acutedentata (W. G. Binney, 1858) (original combination)
  » Species Helix (Polygyra) anilis Gabb, 1865 accepted as Linisa anilis (Gabb, 1865) (original combination)
  » Species Helix (Polygyra) auriculata (Say, 1818) accepted as Daedalochila auriculata (Say, 1818) (superseded combination)
  » Species Helix (Polygyra) behri Gabb, 1865 accepted as Linisa behri (Gabb, 1865) (original combination)
  » Species Helix (Polygyra) couchiana I. Lea, 1857 accepted as Linisa ariadnae (L. Pfeiffer, 1848)
  » Species Helix (Polygyra) deltoidea Simpson, 1888 accepted as Daedalochila deltoidea (Simpson, 1888)
  » Species Helix (Polygyra) hensaniensis Gredler, 1885 accepted as Moellendorffia hensaniensis (Gredler, 1885) (original combination)
  » Species Helix (Polygyra) implicata Martens, 1865 accepted as Linisa implicata (E. von Martens, 1865)
  » Species Helix (Polygyra) loisa W. G. Binney, 1858 accepted as Linisa acutedentata (W. G. Binney, 1858) (junior synonym)
  » Species Helix (Polygyra) microdiscus Bavay, 1908 accepted as Stenopylis coarctata (Möllendorff, 1894) (junior synonym)
  » Species Helix (Polygyra) mooreana W. G. Binney, 1857 accepted as Daedalochila mooreana (W. G. Binney, 1857)
  » Species Helix (Polygyra) oppilata Morelet, 1849 accepted as Linisa oppilata (Morelet, 1849)
  » Species Helix (Polygyra) planorbiformis Sacco, 1886 † accepted as Protodrepanostoma planorbiforme (Sacco, 1886) †
    » Variety Helix (Polygyra) planorbiformis var. tassaroliana Sacco, 1889 † (uncertain > taxon inquirendum)
  » Species Helix (Polygyra) plioauriculata Sacco, 1889 † accepted as Protodrepanostoma plioauriculatum (Sacco, 1889) † (new combination)
  » Species Helix (Polygyra) solidens Mabille, 1895 accepted as Linisa anilis (Gabb, 1865) (junior synonym)
  » Species Helix (Polygyra) tamaulipasensis I. Lea, 1857 accepted as Linisa tamaulipasensis (I. Lea, 1857)
  » Species Helix (Polygyra) tholus W. G. Binney, 1857 accepted as Daedalochila mooreana (W. G. Binney, 1857)
  » Species Helix (Polygyra) triangularis Mabille, 1895 accepted as Linisa behri (Gabb, 1865) (junior synonym)
  » Species Helix (Polygyra) trisinuata Martens, 1867 accepted as Moellendorffia trisinuata (E. von Martens, 1867) (unaccepted combination)
  » Species Helix (Polygyra) lundii Mörch, 1871 (uncertain > unassessed)
Subgenus Helix (Polygyrella) Bland, 1869 accepted as Polygyrella Bland, 1869 (unaccepted, original combination)
Subgenus Helix (Polymita) H. Beck, 1837 accepted as Polymita H. Beck, 1837 (unaccepted, original rank)
Subgenus Helix (Pomatia) H. Beck, 1837 accepted as Helix Linnaeus, 1758 (unaccepted, Invalid: junior homonym of Pomatia Röding, 1798; and junior objective synonym of Helix)
  » Species Helix (Pomatia) achidea Kobelt, 1895 accepted as Helix anctostoma E. von Martens, 1874 (junior synonym)
  » Species Helix (Pomatia) adanensis Kobelt, 1896 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
    » Variety Helix (Pomatia) adanensis var. incrassata Nägele, 1903 accepted as Helix asemnis Bourguignat, 1860 (invalid; not Klein, 1853)
    » Variety Helix (Pomatia) adanensis var. plicata Nägele, 1903 accepted as Helix asemnis Bourguignat, 1860 (invalid; not Born, 1778)
    » Variety Helix (Pomatia) adanensis var. sarica Kobelt, 1896 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
  » Species Helix (Pomatia) antiochiensis Kobelt, 1896 accepted as Helix antiochiensis Kobelt, 1896 (original combination)
  » Species Helix (Pomatia) aperta Born, 1778 accepted as Helix aperta Born, 1778 (superseded combination)
  » Species Helix (Pomatia) aspersa O. F. Müller, 1774 accepted as Cornu aspersum (O. F. Müller, 1774) (superseded combination)
  » Species Helix (Pomatia) baristata Kobelt, 1895 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
  » Species Helix (Pomatia) beilanica Westerlund, 1892 accepted as Helix anctostoma E. von Martens, 1874 (junior synonym)
  » Species Helix (Pomatia) bituminis Kobelt, 1895 accepted as Helix anctostoma E. von Martens, 1874 (junior synonym)
  » Species Helix (Pomatia) chassyana Kobelt, 1895 accepted as Helix nucula Mousson, 1854 (junior synonym)
  » Species Helix (Pomatia) cornarae Kobelt, 1895 accepted as Helix cincta O. F. Müller, 1774
  » Species Helix (Pomatia) dorylaeensis Kobelt, 1903 accepted as Helix lucorum Linnaeus, 1758 (junior synonym)
  » Species Helix (Pomatia) dorylaensis Nägele, 1903 accepted as Helix lucorum Linnaeus, 1758 (suspected synonym)
  » Species Helix (Pomatia) epidaphne Kobelt, 1895 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
  » Species Helix (Pomatia) escherichi O. Boettger, 1898 accepted as Helix escherichi O. Boettger, 1898 (original combination)
  » Species Helix (Pomatia) godetiana Kobelt, 1878 accepted as Helix godetiana Kobelt, 1878 (basionym)
  » Species Helix (Pomatia) infidelium Kobelt, 1896 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
  » Species Helix (Pomatia) issica Kobelt, 1895 accepted as Helix anctostoma E. von Martens, 1874 (junior synonym)
  » Species Helix (Pomatia) mazzulopsis Pilsbry, 1893 accepted as Cornu aspersum (O. F. Müller, 1774)
  » Species Helix (Pomatia) moabitica Goldfuss, 1893 accepted as Helix asemnis Bourguignat, 1860 (junior synonym)
  » Species Helix (Pomatia) pediaea Kobelt, 1895 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
  » Species Helix (Pomatia) pericalla Kobelt & Rolle, 1896 accepted as Helix asemnis Bourguignat, 1860
  » Species Helix (Pomatia) racopsis Kobelt, 1895 accepted as Helix pachya Bourguignat, 1860 (junior synonym)
  » Species Helix (Pomatia) salomonica Nägele, 1899 accepted as Helix salomonica Nägele, 1899 (superseded combination)
  » Species Helix (Pomatia) stenarochila Kobelt, 1895 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
  » Species Helix (Pomatia) thiesseana Kobelt, 1878 accepted as Helix borealis Mousson, 1859 (junior synonym)
  » Species Helix (Pomatia) trixenostoma Kobelt, 1895 accepted as Helix cincta O. F. Müller, 1774 (junior synonym)
  » Species Helix (Pomatia) valentini Kobelt, 1891 accepted as Helix valentini Kobelt, 1891
  » Species Helix (Pomatia) xeraethia Kobelt, 1895 accepted as Helix nucula Mousson, 1854 (junior synonym)
  » Species Helix (Pomatia) xerekia Nägele, 1903 accepted as Helix pachya Bourguignat, 1860 (junior synonym)
Subgenus Helix (Prothelidomus) Oppenheim, 1890 † accepted as Prothelidomus Oppenheim, 1890 † (unaccepted)
Subgenus Helix (Psadara) K. Miller, 1878 accepted as Solaropsis (Psadara) K. Miller, 1878 (unaccepted, original combination)
  » Species Helix (Psadara) boetzkesi K. Miller, 1878 accepted as Solaropsis boetzkesi (K. Miller, 1878) (original combination)
  » Species Helix (Psadara) iris K. Miller, 1878 accepted as Solaropsis iris (K. Miller, 1878) (original combination)
Subgenus Helix (Pseudobuliminus) Gredler, 1886 accepted as Pseudobuliminus Gredler, 1886 (unaccepted, original rank)
Subgenus Helix (Pseudotachea) C. R. Boettger, 1909 accepted as Pseudotachea C. R. Boettger, 1909 (unaccepted)
Subgenus Helix (Pseudoxerophila) Westerlund, 1879 accepted as Pseudoxerophila Westerlund, 1879 (unaccepted, original rank)
Subgenus Helix (Pyramidula) Fitzinger, 1833 accepted as Pyramidula Fitzinger, 1833 (unaccepted)
Subgenus Helix (Rhagada) E. von Martens, 1860 accepted as Rhagada E. von Martens, 1860 (unaccepted, original rank)
  » 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) langleyana Brazier, 1875 accepted as Stenacapha hamiltoni (Cox, 1868) (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)
  » Species Helix (Rhytida) boydi Angas, 1870 (uncertain > taxon inquirendum)
Subgenus Helix (Rhytidopsis) Ancey, 1882 accepted as Rhytidopsis Ancey, 1882 (unaccepted, original rank)
Subgenus Helix (Rimula) R. T. Lowe, 1852 accepted as Actinella R. T. Lowe, 1852 (unaccepted, invalid; preoccupied)
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 (Sagda) Beck, 1837 accepted as Sagda H. Beck, 1837 (unaccepted, original rank)
Subgenus Helix (Sagdellina) Cossmann, 1889 † accepted as Sagdellina Cossmann, 1889 † (unaccepted)
Subgenus Helix (Sagdinella) Mörch, 1872 accepted as Pupina Vignard, 1829 (unaccepted)
  » Species Helix (Sagdinella) didrichsenii Mörch, 1872 (uncertain > taxon inquirendum)
  » Species Helix (Sagdinella) microtrochus Mörch, 1876 (uncertain > taxon inquirendum)
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) (invalid; preoccupied)
  » Species Helix (Satsuma) microtrochus Möllendorff, 1886 accepted as Ganesella microtrochus (Möllendorff, 1886) (original combination)
  » Species Helix (Satsuma) microtrochus Möllendorff, 1887 accepted as Helix (Satsuma) trochomorpha Möllendorff, 1888 (junior homonym of Helix (Satsuma) microtrochus Moellendorff, 1886)
  » Species Helix (Satsuma) trochus Möllendorff, 1887 accepted as Ganesella ulingensis Zilch, 1966 (invalid, non H. trochus, O. F. Müller, 1774)
  » Species Helix (Satsuma) trochomorpha Möllendorff, 1888 (uncertain > taxon inquirendum)
Subgenus Helix (Sculptaria) L. Pfeiffer, 1855 accepted as Sculptaria L. Pfeiffer, 1855 (unaccepted, original rank)
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, original rank)
Subgenus Helix (Solaropsis) Beck, 1837 accepted as Solaropsis H. Beck, 1837 (unaccepted, original rank)
  » Species Helix (Solaropsis) castelnaui [sic] accepted as Solaropsis castelnaudii (Deville & Hupé, 1850) (misspelling of original name, Helix castelnaudii)
  » Species Helix (Solaropsis) leopoldina Strubell, 1895 accepted as Solaropsis leopoldina (Strubell, 1895) (basionym)
  » Species Helix (Solaropsis) pellisserpentis Gmelin, 1791 accepted as Solaropsis pellisserpentis (Gmelin, 1791)
  » Species Helix (Solaropsis) rosarium (L. Pfeiffer, 1850) accepted as Solaropsis rosarium (L. Pfeiffer, 1850) (unaccepted combination)
  » Species Helix (Solaropsis) tiloriensis Angas, 1879 accepted as Solaropsis tiloriensis (Angas, 1879) (basionym)
Subgenus Helix (Sophina) Benson, 1859 accepted as Sophina Benson, 1859 (unaccepted, original rank)
Subgenus Helix (Sphaerospira) Mörch, 1867 accepted as Sphaerospira Mörch, 1867 (unaccepted)
Subgenus Helix (Spirorbula) C. T. Lowe, 1852 accepted as Spirorbula R. T. Lowe, 1852 (unaccepted, original rank)
Subgenus Helix (Stegodera) E. von Martens, 1876 accepted as Stegodera E. von Martens, 1876 (unaccepted, original rank)
Subgenus Helix (Stenotrema) Rafinesque, 1819 accepted as Stenotrema Rafinesque, 1819 (unaccepted)
Subgenus Helix (Stephanoda) E. von Martens, 1860 accepted as Stephanoda E. von Martens, 1860 (unaccepted, original rank)
Subgenus Helix (Stepsanoda) L. Pfeiffer, 1879 accepted as Stephanoda E. von Martens, 1860 (unaccepted, unjustified emendation of Stephanoda Martens, 1860)
Subgenus Helix (Sterna) Albers, 1850 accepted as Elona H. Adams & A. Adams, 1855 (unaccepted, Invalid: junior homonym of Sterna Linnaeus, 1758 [Aves]: Iberus (Elona) H. Adams & A. Adams, 1855 is a replacement name)
Subgenus Helix (Streptaxis) Gray, 1837 accepted as Streptaxis Gray, 1837 (unaccepted, original combination)
  » Species Helix (Streptaxis) candei Petit de la Saussaye, 1842 accepted as Streptaxis candei Petit de la Saussaye, 1842 (original combination)
  » Species Helix (Streptaxis) streptodon S. Moricand, 1851 accepted as Streptartemon streptodon (S. Moricand, 1851) (original combination)
  » Species Helix (Streptaxis) dejecta Petit de la Saussaye, 1942 (uncertain > taxon inquirendum)
  » Species Helix (Streptaxis) petitii Gould, 1843 (uncertain > taxon inquirendum)
Subgenus Helix (Stylodonta) De Cristofori & Jan, 1832 accepted as Stylodonta De Cristofori & Jan, 1832 (unaccepted, superseded combination)
  » Species Helix (Stylodonta) studeriana Férussac, 1821 accepted as Stylodonta studeriana (A. Férussac, 1821) (superseded combination)
  » Species Helix (Stylodonta) unidentata Holten, 1802 accepted as Stylodonta unidentata (Holten, 1802) (superseded combination)
Subgenus Helix (Systenostoma) Bavay & Dautzenberg, 1909 accepted as Systenostoma Bavay & Dautzenberg, 1909 (unaccepted, original rank)
Subgenus Helix (Tachaea) [sic] accepted as Cepaea Held, 1838 (unaccepted, incorrect subsequent spelling; junior homonym of Tachea Fleming, 1822 [Aves])
Subgenus Helix (Tachea) W. Turton, 1831 accepted as Cepaea Held, 1838 (unaccepted, Invalid: junior homonym of Tachea Fleming, 1822 [Aves])
  » Species Helix (Tachea) atrolabiata Krynicki, 1833 accepted as Caucasotachea atrolabiata (Krynicki, 1833) (unaccepted combination)
  » Species Helix (Tachea) coquandi (Morelet, 1854) accepted as Pseudotachea liturata (L. Pfeiffer, 1853) (superseded generic combination)
    » Variety Helix (Tachea) coquandi var. tenuis Pallary, 1904 (uncertain > taxon inquirendum)
  » Species Helix (Tachea) nemoralis Linnaeus, 1758 accepted as Helix nemoralis Linnaeus, 1758 (superseded combination)
  » Species Helix (Tachea) palaeocastrensis De Stefani in De Stefani et al., 1891 † accepted as Cernuella palaeocastrensis (De Stefani in De Stefani et al., 1891) †
  » Species Helix (Tachea) placentina De Stefani, 1880 † accepted as Cepaea placentina (De Stefani, 1880) † (new combination)
  » Species Helix (Tachea) sabina Tuccimei, 1889 † accepted as Murella (Opica) sabina (Tuccimei, 1889) † (new combination)
  » Species Helix (Tachea) turonensis (Deshayes, 1832) † accepted as Megalotachea turonensis (Deshayes, 1832) †
  » Species Helix (Tachea) bennetiana G. Nevill, 1880 † (uncertain > taxon inquirendum)
  » Species Helix (Tachea) leonidae Bogachev, 1936 † (uncertain > taxon inquirendum)
  » Species Helix (Tachea) mentonica G. Nevill, 1880 † (uncertain > taxon inquirendum)
  » Species Helix (Tachea) oedesima G. Nevill, 1880 † (uncertain > taxon inquirendum)
    » Variety Helix (Tachea) oedesima var. colorata G. Nevill, 1880 † (uncertain > taxon inquirendum)
    » Variety Helix (Tachea) oedesima var. crassior G. Nevill, 1880 † (uncertain > taxon inquirendum)
  » Species Helix (Tachea) paretiana Issel, 1867 † (uncertain > taxon inquirendum)
  » Species Helix (Tachea) williamsiana G. Nevill, 1880 (uncertain > taxon inquirendum)
    » Variety Helix (Tachea) williamsiana var. spanias G. Nevill, 1880 † (uncertain > taxon inquirendum)
    » Variety Helix (Tachea) williamsiana var. subnemoralis G. Nevill, 1880 † (uncertain > taxon inquirendum)
Subgenus Helix (Tacheocampylaea) L. Pfeiffer, 1877 accepted as Tacheocampylaea L. Pfeiffer, 1877 (unaccepted, original rank)
  » Species Helix (Tacheocampylaea) carotii Paulucci, 1882 accepted as Tacheocampylaea carotii (Paulucci, 1882)
  » Species Helix (Tacheocampylaea) doderleini Brusina, 1897 † accepted as Mesodontopsis doderleini (Brusina, 1897) † (new combination)
  » Species Helix (Tacheocampylaea) melonii Maltzan, 1886 accepted as Tacheocampylaea carotii (Paulucci, 1882) (junior synonym)
Subgenus Helix (Tectula) R. T. Lowe, 1852 accepted as Discula R. T. Lowe, 1852 (unaccepted, junior subjective synonym)
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) erythrostoma Beck, 1837 accepted as Theba subdentata helicella (W. Wood, 1828) (junior synonym)
  » 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) strigella (Draparnaud, 1801) accepted as Euomphalia strigella (Draparnaud, 1801) (unaccepted > superseded combination)
  » 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)
  » Species Helix (Theba) ziczac Gould, 1846 accepted as Phenacohelix ziczac (Gould, 1846)
Subgenus Helix (Thelidomus) Swainson, 1840 accepted as Thelidomus Swainson, 1840 (unaccepted, unaccepted combination)
  » Species Helix (Thelidomus) lima Férussac, 1821 accepted as Granodomus lima (Férussac, 1821) (unaccepted combination)
  » Species Helix (Thelidomus) squamosa (Férussac, 1821) accepted as Cepolis squamosa (Férussac, 1821) (unaccepted combination)
  » Species Helix (Thelidomus) angulifera E. von Martens, 1877 (uncertain > taxon inquirendum)
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 W. T. Blanford, 1869 accepted as Aegista catostoma (W. T. Blanford, 1869) (original combination)
  » Species Helix (Trachia) clarus Godwin-Austen, 1888 accepted as Trachia clarus (Godwin-Austen, 1888) (original combination)
  » Species Helix (Trachia) delibrata Benson, 1836 accepted as Bouchetcamaena delibrata (Benson, 1836) (unaccepted > superseded combination)
    » Variety Helix (Trachia) delibrata var. fasciata Godwin-Austen, 1875 accepted as Burmochloritis fasciata (Godwin-Austen, 1875) (unaccepted > superseded combination, superseded combination)
    » Variety Helix (Trachia) delibrata var. khasiensis G. Nevill, 1877 accepted as Chloritis delibrata khasiensis (G. Nevill, 1877) (original combination)
  » Species Helix (Trachia) dentoni J. Ford, 1889 accepted as Trachiopsis strangulata (Hombron & Jacquinot, 1841) (unaccepted > junior subjective synonym)
  » Species Helix (Trachia) derbyana E. A. Smith, 1894 accepted as Westraltrachia derbyi (Cox, 1892) (junior synonym)
  » Species Helix (Trachia) emensus Godwin-Austen, 1888 accepted as Trachia emensus (Godwin-Austen, 1888) (original combination)
  » 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)
  » Species Helix (Trachia) malbatensis Hidalgo, 1890 accepted as Chloritis malbatensis (Hidalgo, 1890) (original combination)
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].)
  » Species Helix (Trichia) annexa Westerlund, 1897 accepted as Fruticicola schrenckii (Middendorff, 1850) (junior synonym)
  » Species Helix (Trichia) czekanowskii Westerlund, 1897 accepted as Stygius stuxbergi (Westerlund, 1876) (junior synonym)
  » Species Helix (Trichia) densecostulata Retowski, 1887 accepted as Monacha densecostulata (Retowski, 1887) (original combination)
  » Species Helix (Trichia) dieckmanni Mousson, 1887 accepted as Karaftohelix dieckmanni (Mousson, 1887) (original combination)
  » Species Helix (Trichia) eutheta Westerlund, 1897 accepted as Karaftohelix dieckmanni (Mousson, 1887) (junior synonym)
  » Species Helix (Trichia) kusmici Clessin, 1887 accepted as Hiltrudia kusmici (Clessin, 1887) (original combination)
  » Species Helix (Trichia) nothra Westerlund, 1897 accepted as Trochulus hispidus (Linnaeus, 1758) (junior synonym)
  » Species Helix (Trichia) podolica Westerlund, 1897 accepted as Euomphalia strigella (Draparnaud, 1801) (junior synonym)
  » Species Helix (Trichia) rhysota Westerlund, 1896 accepted as Lindholmomneme rhysota (Westerlund, 1876)
  » Species Helix (Trichia) rufispira (Martens, 1874) accepted as Cathaica rufispira (Martens, 1874) (original combination)
    » Subspecies Helix (Trichia) rufispira fuscior Rosen, 1903 accepted as Cathaica rufispira fuscior (Rosen, 1903) (original combination)
  » Species Helix (Trichia) stuxbergi Westerlund, 1876 accepted as Stygius stuxbergi (Westerlund, 1876) (original combination)
  » Species Helix (Trichia) transsylvanica Westerlund, 1876 accepted as Lozekia transsylvanica (Westerlund, 1876) (basionym)
  » Species Helix (Trichia) verna Westerlund, 1897 accepted as Stygius stuxbergi (Westerlund, 1876) (junior synonym)
  » Species Helix (Trichia) chrysotricha O. Boettger, 1888 (uncertain > taxon inquirendum)
Subgenus Helix (Trichia) W. Hartmann, 1840 accepted as Trochulus Chemnitz, 1786 (unaccepted)
Subgenus Helix (Trichochloritis) Pilsbry, 1891 accepted as Trichochloritis Pilsbry, 1891 (unaccepted, original rank)
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 (Triodopsis) Rafinesque, 1819 accepted as Triodopsis Rafinesque, 1819 (unaccepted)
Subgenus Helix (Trochomorpha) Albers, 1850 accepted as Trochomorpha Albers, 1850 (unaccepted, original rank)
  » Species Helix (Trochomorpha) conicoides Metcalfe, 1851 accepted as Geotrochus conicoides (Metcalfe, 1852) (superseded combination)
  » 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, 1864) (junior synonym)
  » Species Helix (Trochomorpha) fessonia Angas, 1870 accepted as Trochomorpha fessonia (Angas, 1870) (original combination)
  » Species Helix (Trochomorpha) helicoides Metcalfe, 1851 accepted as Geotrochus conicoides (Metcalfe, 1852) (superseded combination)
  » Species Helix (Trochomorpha) juanita Angas, 1873 accepted as Trochomorpha juanita (Angas, 1873) (original combination)
  » Species Helix (Trochomorpha) latimarginata E. A. Smith, 1884 accepted as Trochomorpha latimarginata (E. A. Smith, 1884) (basionym)
Subgenus Helix (Trochomorphoides) G. Nevill, 1878 accepted as Trochomorphoides G. Nevill, 1878 (unaccepted)
Subgenus Helix (Trochonanina) Mousson, 1869 accepted as Trochonanina Mousson, 1869 (