MolluscaBase name details

Cyclostoma Draparnaud, 1801

Pomatias elegans
Pomatias elegans

863303  (urn:lsid:marinespecies.org:taxname:863303)

  1. Biota
  2. Animalia (Kingdom)
  3. Mollusca (Phylum)
  4. Gastropoda (Class)
  5. Caenogastropoda (Subclass)
  6. Littorinimorpha (Order)
  7. Littorinoidea (Superfamily)
  8. Pomatiidae (Family)
  9. Cyclostoma (Genus)
 unaccepted (invalid: junior homonym of Cyclostoma Lamarck, 1799)
Genus
Nerita elegans O. F. Müller, 1774 accepted as Pomatias elegans (O. F. Müller, 1774) (type by subsequent designation)
Cyclostomus Montfort, 1810 · unaccepted > unjustified emendation

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  1. Species Cyclostoma terveriana Grateloup, 1840
  2. Subgenus Cyclostoma (Adamsiella) L. Pfeiffer, 1851 accepted as Adamsiella L. Pfeiffer, 1851 (unaccepted combination)
    1. Species Cyclostoma (Adamsiella) cinnamomeum L. Pfeiffer, 1856 (uncertain > taxon inquirendum)
  3. Subgenus Cyclostoma (Adelostoma) E. A. Smith, 1885 accepted as Pseudocyclotus Thiele, 1894 (invalid: junior homonym of Adelostoma Duponchel, 1827)
  4. Subgenus Cyclostoma (Aulopoma) Troschel, 1847 accepted as Aulopoma Troschel, 1847
    1. Species Cyclostoma (Aulopoma) grande L. Pfeiffer, 1855 accepted as Aulopoma grande (L. Pfeiffer, 1855) (original combination)
  5. Subgenus Cyclostoma (Bourciera) L. Pfeiffer, 1852 accepted as Bourciera L. Pfeiffer, 1852 (unaccepted > superseded combination)
    1. Species Cyclostoma (Bourciera) fraseri L. Pfeiffer, 1859 accepted as Bourciera fraseri (L. Pfeiffer, 1859) (original combination)
  6. Subgenus Cyclostoma (Choanopoma) L. Pfeiffer, 1847 accepted as Choanopoma L. Pfeiffer, 1847 accepted as Annularia Schumacher, 1817 (unaccepted > superseded combination)
    1. Species Cyclostoma (Choanopoma) decussatum (Lamarck, 1822) accepted as Diplopoma decussatum (Lamarck, 1822) (unaccepted > superseded combination)
    2. Species Cyclostoma (Choanopoma) echinus L. Pfeiffer, 1864 accepted as Blaesospira echinus (L. Pfeiffer, 1864) (unaccepted > superseded combination, basionym)
    3. Species Cyclostoma (Choanopoma) gonavense Weinland, 1880 accepted as Weinlandipoma gonavense (Weinland, 1880) (basionym)
    4. Species Cyclostoma (Choanopoma) mite L. Pfeiffer, 1854 accepted as Annularia mitis (L. Pfeiffer, 1854) (unaccepted > superseded combination)
    5. Species Cyclostoma (Choanopoma) senticosum Shuttleworth, 1854 accepted as Diplopoma decussatum (Lamarck, 1822) (unaccepted > junior subjective synonym)
    6. Species Cyclostoma (Choanopoma) yunquense L. Pfeiffer, 1860 accepted as Annularisca yunquensis (L. Pfeiffer, 1860) (unaccepted > superseded combination, basionym)
  7. Subgenus Cyclostoma (Chondropoma) L. Pfeiffer, 1847 accepted as Chondropoma L. Pfeiffer, 1847 (unaccepted > superseded combination)
    1. Species Cyclostoma (Chondropoma) aspratile Morelet, 1873 accepted as Diplopoma lachneri (L. Pfeiffer, 1862) accepted as Subannularia lachneri (L. Pfeiffer, 1862) (unaccepted > junior subjective synonym)
    2. Species Cyclostoma (Chondropoma) blauneri Shuttleworth, 1854 accepted as Parachondria blauneri (Shuttleworth, 1854) (original combination)
    3. Species Cyclostoma (Chondropoma) cirratum L. Pfeiffer, 1867 accepted as Turrithyra cirrata (L. Pfeiffer, 1867) (unaccepted > superseded combination)
    4. Species Cyclostoma (Chondropoma) cisnerosi Arango, 1876 accepted as Parachondria auberiana (A. d'Orbigny, 1842) (junior synonym)
    5. Species Cyclostoma (Chondropoma) cordovanum L. Pfeiffer, 1857 accepted as Parachondria cordovanus (L. Pfeiffer, 1857) accepted as Parachondria cordovana (L. Pfeiffer, 1857) (original combination)
    6. Species Cyclostoma (Chondropoma) gundlachi Arango, 1862 accepted as Chondrothyra gundlachi (Arango, 1862) (unaccepted > superseded combination, basionym)
    7. Species Cyclostoma (Chondropoma) inaguense Weinland, 1880 accepted as Chondropoma inaguense (Weinland, 1880) (original combination)
    8. Species Cyclostoma (Chondropoma) kisslingianum Weinland, 1880 accepted as Chondropoma kisslingianum (Weinland, 1880) (original combination)
    9. Species Cyclostoma (Chondropoma) newcombianum (C. B. Adams, 1849) accepted as Parachondria lineolata (Lamarck, 1822) (junior synonym)
    10. Species Cyclostoma (Chondropoma) newtoni Shuttleworth, 1854 accepted as Chondropoma riisei (L. Pfeiffer, 1852) accepted as Chondropomorus riisei (L. Pfeiffer, 1852) accepted as Parachondria riisei (L. Pfeiffer, 1852) (junior synonym)
    11. Species Cyclostoma (Chondropoma) scripturatum Weinland, 1876 accepted as Parachondria scripturatum (Weinland, 1876) (original combination)
    12. Species Cyclostoma (Chondropoma) swiftii Shuttleworth, 1854 accepted as Chondropoma pictum (L. Pfeiffer, 1839) (unaccepted > junior subjective synonym)
    13. Species Cyclostoma (Chondropoma) venezuelense L. Pfeiffer, 1854 accepted as Cyclostoma plicatulum L. Pfeiffer, 1846 accepted as Gouldipoma plicatulum (L. Pfeiffer, 1846) (unaccepted > junior subjective synonym)
    14. Species Cyclostoma (Chondropoma) angustatum L. Pfeiffer, 1854 (uncertain > nomen dubium)
    15. Species Cyclostoma (Chondropoma) dissolutum L. Pfeiffer, 1854 (uncertain > taxon inquirendum, not assessed)
  8. Subgenus Cyclostoma (Cistula) J. E. Gray, 1850 accepted as Parachondria Dall, 1905
    1. Species Cyclostoma (Cistula) cinclidodes L. Pfeiffer, 1854 accepted as Colonina cinclidodes (L. Pfeiffer, 1854) (unaccepted > superseded combination)
    2. Species Cyclostoma (Cistula) riisei (L. Pfeiffer, 1852) accepted as Chondropomorus riisei (L. Pfeiffer, 1852) accepted as Parachondria riisei (L. Pfeiffer, 1852) (unaccepted combination)
  9. Subgenus Cyclostoma (Cochlocycla) Jan, 1830 accepted as Cochlocycla Jan, 1830 accepted as Pomatias S. Studer, 1789 (original rank)
  10. Subgenus Cyclostoma (Cochlostoma) Jan, 1830 accepted as Cochlostoma Jan, 1830 (original rank)
  11. Subgenus Cyclostoma (Colobostylus) Crosse & P. Fischer, 1888 accepted as Colobostylus Crosse & P. Fischer, 1888
    1. Species Cyclostoma (Colobostylus) marcellanum Oppenheim, 1890 † accepted as Cochlostoma marcellanum (Oppenheim, 1890) † (unaccepted > superseded combination)
  12. Subgenus Cyclostoma (Craspedopoma) L. Pfeiffer, 1847 accepted as Craspedopoma L. Pfeiffer, 1847 (unaccepted > superseded rank)
    1. Species Cyclostoma (Craspedopoma) costatum Shuttleworth, 1852 accepted as Craspedopoma costatum (Shuttleworth, 1852) accepted as Craspedopoma annulatum R. T. Lowe, 1860 (unaccepted > junior homonym, original name; non L. Pfeiffer, 1846)
    2. Species Cyclostoma (Craspedopoma) utriculosum F. Sandberger, 1858 † accepted as Physotrema utriculosa (F. Sandberger, 1858) † (unaccepted > superseded combination)
  13. Subgenus Cyclostoma (Cyclophorus) Montfort, 1810 accepted as Cyclophorus Montfort, 1810
    1. Species Cyclostoma (Cyclophorus) aequivocum L. Pfeiffer, 1857 accepted as Acroptychia aequivoca (L. Pfeiffer, 1857) (basionym)
    2. Species Cyclostoma (Cyclophorus) alabastrinum L. Pfeiffer, 1854 accepted as Cyclophorus alabastrinus (L. Pfeiffer, 1854) (original combination)
    3. Species Cyclostoma (Cyclophorus) amboinensis L. Pfeiffer, 1854 accepted as Cyclotus amboinensis (L. Pfeiffer, 1854) (original combination)
    4. Species Cyclostoma (Cyclophorus) amoenum L. Pfeiffer, 1854 accepted as Cyclophorus amoenus L. Pfeiffer, 1852
    5. Species Cyclostoma (Cyclophorus) bairdi L. Pfeiffer, 1854 accepted as Theobaldius bairdi (L. Pfeiffer, 1854) (original combination)
    6. Species Cyclostoma (Cyclophorus) boucardi L. Pfeiffer, 1857 accepted as Amphicyclotus boucardi (L. Pfeiffer, 1857) (original combination)
    7. Species Cyclostoma (Cyclophorus) bourcieri L. Pfeiffer, 1852 accepted as Calaperostoma bourcieri (L. Pfeiffer, 1852) (original combination)
    8. Species Cyclostoma (Cyclophorus) cayennense Shuttleworth, 1852 accepted as Neocyclotus cayennensis (Shuttleworth, 1852) (original combination)
    9. Species Cyclostoma (Cyclophorus) convexiusculum L. Pfeiffer, 1855 accepted as Chondrocyclus convexiusculus (L. Pfeiffer, 1855) (unaccepted > superseded combination)
    10. Species Cyclostoma (Cyclophorus) denselineatus (L. Pfeiffer, 1852) accepted as Cyclophorus (Cyclohelix) denselineatus L. Pfeiffer, 1852 represented as Cyclophorus denselineatus L. Pfeiffer, 1852 (unaccepted combination)
    11. Species Cyclostoma (Cyclophorus) exaltatum L. Pfeiffer, 1855 accepted as Cyclophorus exaltatus (L. Pfeiffer, 1855) (original combination)
    12. Species Cyclostoma (Cyclophorus) excellens (L. Pfeiffer, 1854) accepted as Cyclophorus excellens L. Pfeiffer, 1854 (intended original combination published subsequently)
    13. Species Cyclostoma (Cyclophorus) forbesianus L. Pfeiffer, 1855 accepted as Gassiesia forbesiana (L. Pfeiffer, 1855) (basionym)
    14. Species Cyclostoma (Cyclophorus) fornicatum L. Pfeiffer, 1854 accepted as Gonatorhaphe fornicata (L. Pfeiffer, 1854) (original combination)
    15. Species Cyclostoma (Cyclophorus) ibyatense L. Pfeiffer, 1854 accepted as Cyclophorus ibyatensis L. Pfeiffer, 1854
    16. Species Cyclostoma (Cyclophorus) labiosum L. Pfeiffer, 1854 accepted as Cyclophorus labiosus (L. Pfeiffer, 1854) (original combination)
    17. Species Cyclostoma (Cyclophorus) leucostomum L. Pfeiffer, 1852 accepted as Cyclophorus leucostomus (L. Pfeiffer, 1852) (original combination)
    18. Species Cyclostoma (Cyclophorus) loxostomum L. Pfeiffer, 1854 accepted as Theobaldius loxostoma (L. Pfeiffer, 1854) (original combination)
    19. Species Cyclostoma (Cyclophorus) luridum L. Pfeiffer, 1852 accepted as Cyclophorus luridus (L. Pfeiffer, 1852) (original combination)
    20. Species Cyclostoma (Cyclophorus) lutescens L. Pfeiffer, 1853 accepted as Mexcyclotus lutescens (L. Pfeiffer, 1853) (unaccepted > superseded combination)
    21. Species Cyclostoma (Cyclophorus) picturatum L. Pfeiffer, 1854 accepted as Cyclophorus picturatus (L. Pfeiffer, 1854)
    22. Species Cyclostoma (Cyclophorus) pirrieanum L. Pfeiffer, 1854 accepted as Cyclophorus (Litostylus) nilagiricus (W. H. Benson, 1852) accepted as Cyclophorus nilagiricus (W. H. Benson, 1852) (junior synonym)
    23. Species Cyclostoma (Cyclophorus) polynema L. Pfeiffer, 1855 accepted as Cyclophorus polynema (L. Pfeiffer, 1855) (original combination)
    24. Species Cyclostoma (Cyclophorus) schrammi Shuttleworth, 1857 accepted as Amphicyclotulus schrammi (Shuttleworth, 1857) (original combination)
    25. Species Cyclostoma (Cyclophorus) shiplayi L. Pfeiffer, 1857 accepted as Lagocheilus shiplayi (L. Pfeiffer, 1857) (basionym)
    26. Species Cyclostoma (Cyclophorus) spironema L. Pfeiffer, 1855 accepted as Cyclophorus spironema (L. Pfeiffer, 1855) (original combination)
    27. Species Cyclostoma (Cyclophorus) sumatrense L. Pfeiffer, 1855 accepted as Cyclophorus sumatrensis (L. Pfeiffer, 1855) (original combination)
    28. Species Cyclostoma (Cyclophorus) taeniatum L. Pfeiffer, 1855 accepted as Cyclophorus taeniatus (L. Pfeiffer, 1855) (original combination)
    29. Species Cyclostoma (Cyclophorus) thersites Shuttleworth, 1852 accepted as Cyclophorus thersites (Shuttleworth, 1852) (original combination)
    30. Species Cyclostoma (Cyclophorus) thwaitesi L. Pfeiffer, 1854 accepted as Theobaldius thwaitesi (L. Pfeiffer, 1854) (original combination)
    31. Species Cyclostoma (Cyclophorus) cereum L. Pfeiffer, 1855 (uncertain > taxon inquirendum)
  14. Subgenus Cyclostoma (Cyclostomus) Montfort, 1810 accepted as Cyclostomus Montfort, 1810 accepted as Cyclostoma Draparnaud, 1801 accepted as Pomatias S. Studer, 1789 (unaccepted rank)
    1. Species Cyclostoma (Cyclostomus) boivini L. Pfeiffer, 1857 accepted as Tropidophora tricarinata var. boivini (L. Pfeiffer, 1856) accepted as Tropidophora tricarinata (O. F. Müller, 1774) (unaccepted > junior subjective synonym)
    2. Species Cyclostoma (Cyclostomus) leve L. Pfeiffer, 1855 accepted as Pseudocyclotus levis (L. Pfeiffer, 1855) (unaccepted > superseded combination)
    3. Species Cyclostoma (Cyclostomus) microchasma L. Pfeiffer, 1857 accepted as Tropidophora microchasma (L. Pfeiffer, 1857) (original combination)
    4. Species Cyclostoma (Cyclostomus) sarcodes L. Pfeiffer, 1857 accepted as Tropidophora sarcodes (L. Pfeiffer, 1857) (unaccepted > superseded combination)
    5. Species Cyclostoma (Cyclostomus) gradatum L. Pfeiffer, 1855 (uncertain > taxon inquirendum)
    6. Species Cyclostoma (Cyclostomus) kieneri L. Pfeiffer, 1855 (uncertain > taxon inquirendum)
  15. Subgenus Cyclostoma (Cyclotus) Swainson, 1840 accepted as Cyclotus Swainson, 1840 (unaccepted > superseded combination)
    1. Species Cyclostoma (Cyclotus) bogotense L. Pfeiffer, 1855 accepted as Aperostoma bogotense (L. Pfeiffer, 1855) (unaccepted > superseded combination)
    2. Species Cyclostoma (Cyclotus) chinensis L. Pfeiffer, 1855 accepted as Cyclotus chinensis (L. Pfeiffer, 1855) (original combination)
    3. Species Cyclostoma (Cyclotus) daucinum L. Pfeiffer, 1857 accepted as Cyclotus daucinus (L. Pfeiffer, 1857) (original combination)
    4. Species Cyclostoma (Cyclotus) floccosum Shuttleworth, 1857 accepted as Crocidopoma orbellum (Lamarck, 1822) (original combination)
    5. Species Cyclostoma (Cyclotus) fortunei L. Pfeiffer, 1852 accepted as Cyclotus fortunei L. Pfeiffer, 1852 (unaccepted > superseded combination)
    6. Species Cyclostoma (Cyclotus) glaucostomum L. Pfeiffer, 1863 accepted as Neocyclotus glaucostomus (L. Pfeiffer, 1863) (original combination)
    7. Species Cyclostoma (Cyclotus) granadense Shuttleworth, 1857 accepted as Neocyclotus granadensis (Shuttleworth, 1857) (original combination)
    8. Species Cyclostoma (Cyclotus) irregulare L. Pfeiffer, 1855 accepted as Incidostoma irregulare (L. Pfeiffer, 1855) (original combination)
    9. Species Cyclostoma (Cyclotus) lindstedti L. Pfeiffer, 1857 accepted as Cyclotus lindstedti (L. Pfeiffer, 1857) (original combination)
    10. Species Cyclostoma (Cyclotus) martinicense Shuttleworth, 1857 accepted as Amphicyclotulus martinicensis (Shuttleworth, 1857) (basionym)
    11. Species Cyclostoma (Cyclotus) montanum L. Pfeiffer, 1855 accepted as Cyclotopsis montana (L. Pfeiffer, 1855) (unaccepted > superseded combination)
    12. Species Cyclostoma (Cyclotus) pterocycloides L. Pfeiffer, 1855 accepted as Cyclotus pterocycloides (L. Pfeiffer, 1855) (original combination)
    13. Species Cyclostoma (Cyclotus) quitense (L. Pfeiffer, 1852) accepted as Incidostoma quitense (L. Pfeiffer, 1852) (unaccepted > superseded combination)
    14. Species Cyclostoma (Cyclotus) sordidum L. Pfeiffer, 1855 accepted as Platyrhaphe sordida (L. Pfeiffer, 1855) (original combination)
    15. Species Cyclostoma (Cyclotus) tubuliferum L. Pfeiffer, 1854 accepted as Cyclotus tubuliferus (L. Pfeiffer, 1854) (original combination)
    16. Species Cyclostoma (Cyclotus) recluzianum L. Pfeiffer, 1854 (uncertain > taxon inquirendum)
  16. Subgenus Cyclostoma (Dissostoma) Cossmann, 1888 † accepted as Dissostoma Cossmann, 1888 † (unaccepted > superseded rank)
  17. Subgenus Cyclostoma (Ericia) Partiot, 1848 accepted as Pomatias S. Studer, 1789
    1. Species Cyclostoma (Ericia) elegans (O. F. Müller, 1774) accepted as Pomatias elegans (O. F. Müller, 1774) (superseded generic combination)
    2. Species Cyclostoma (Ericia) mauretanicum Pallary, 1898 accepted as Tudorella mauretanica (Pallary, 1898) (original name)
    3. Species Cyclostoma (Ericia) multisulcatum Potiez & Michaud, 1838 accepted as Tudorella multisulcata (Potiez & Michaud, 1838)
    4. Species Cyclostoma (Ericia) olivieri Charpentier, 1847 accepted as Pomatias glaucus (G. B. Sowerby II, 1843) (unaccepted > superseded combination)
  18. Subgenus Cyclostoma (Hydrocoena) [sic] accepted as Hydrocena Küster, 1844
    1. Species Cyclostoma (Hydrocoena) moreleti Deshayes, 1863 accepted as Omphalotropis rubens (Quoy & Gaimard, 1832) (junior synonym)
    2. Species Cyclostoma (Hydrocoena) rubens (Quoy & Gaimard, 1832) accepted as Omphalotropis rubens (Quoy & Gaimard, 1832)
  19. Subgenus Cyclostoma (Hygrobium) R. T. Lowe, 1852 accepted as Craspedopoma L. Pfeiffer, 1847
    1. Species Cyclostoma (Hygrobium) lyonnetianum R. T. Lowe, 1852 accepted as Craspedopoma lyonnetianum (R. T. Lowe, 1852) (basionym)
  20. Subgenus Cyclostoma (Hyrcania) Monterosato, 1894 accepted as Pomatias (Hyrcania) Monterosato, 1894 represented as Pomatias S. Studer, 1789
  21. Subgenus Cyclostoma (Jamaicia) C. B. Adams, 1850 accepted as Annularia (Jamaicia) C. B. Adams, 1850 represented as Annularia Schumacher, 1817 (original combination)
    1. Species Cyclostoma (Jamaicia) anomalum C. B. Adams, 1850 accepted as Annularia (Jamaicia) anomala (C. B. Adams, 1850) represented as Annularia anomala (C. B. Adams, 1850) (original combination)
  22. Subgenus Cyclostoma (Japonia) A. Gould, 1859 accepted as Japonia A. Gould, 1859 (unaccepted > superseded rank)
    1. Species Cyclostoma (Japonia) musiva A. Gould, 1859 accepted as Japonia musiva (A. Gould, 1859) (unaccepted > superseded combination)
  23. Subgenus Cyclostoma (Leonia) Gray, 1850 accepted as Leonia Gray, 1850 (superseded generic combination)
    1. Species Cyclostoma (Leonia) jolyi Pallary, 1908 accepted as Leonia mammillaris (Lamarck, 1822) (junior synonym)
    2. Species Cyclostoma (Leonia) mamillare Pallary, 1898 accepted as Leonia mammillaris (Lamarck, 1822) (unjustified emendation by Pallary (1898))
    3. Species Cyclostoma (Leonia) scrobiculata Mousson, 1874 accepted as Leonia scrobiculata (Mousson, 1874) (original name)
    4. Species Cyclostoma (Leonia) scrobiculatum Mousson, 1873 accepted as Leonia scrobiculata (Mousson, 1874) (original name)
  24. Subgenus Cyclostoma (Leptopoma) L. Pfeiffer, 1847 accepted as Leptopoma L. Pfeiffer, 1847 (unaccepted rank)
    1. Species Cyclostoma (Leptopoma) barbatum L. Pfeiffer, 1855 accepted as Lagocheilus barbatus (L. Pfeiffer, 1855) (original combination)
    2. Species Cyclostoma (Leptopoma) bicolor (L. Pfeiffer, 1852) accepted as Leptopoma bicolor L. Pfeiffer, 1852 (unaccepted > superseded combination)
    3. Species Cyclostoma (Leptopoma) conulus L. Pfeiffer, 1854 accepted as Leptopomoides conulus (L. Pfeiffer, 1854) (original combination)
    4. Species Cyclostoma (Leptopoma) duplicatum L. Pfeiffer, 1857 accepted as Leptopoma duplicatum (L. Pfeiffer, 1857) (original combination)
    5. Species Cyclostoma (Leptopoma) flammeus L. Pfeiffer, 1854 accepted as Leptopomoides flammeus (L. Pfeiffer, 1854)
    6. Species Cyclostoma (Leptopoma) hanleyanum L. Pfeiffer, 1856 accepted as Leptopoma hanleyanum (L. Pfeiffer, 1856) (original combination)
    7. Species Cyclostoma (Leptopoma) inornatum F. Sandberger, 1858 † accepted as Leptopomoides inornatus (F. Sandberger, 1858) † (unaccepted > superseded combination)
    8. Species Cyclostoma (Leptopoma) latelimbatum (L. Pfeiffer, 1852) accepted as Leptopoma latelimbatum L. Pfeiffer, 1852
    9. Species Cyclostoma (Leptopoma) poecilum L. Pfeiffer, 1855 accepted as Leptopomoides poecilus (L. Pfeiffer, 1855) (original combination)
    10. Species Cyclostoma (Leptopoma) regulare (L. Pfeiffer, 1852) accepted as Leptopoma regulare L. Pfeiffer, 1852 (unaccepted > superseded combination)
    11. Species Cyclostoma (Leptopoma) sechellarum L. Pfeiffer, 1855 accepted as Leptopoma sechellarum (L. Pfeiffer, 1855) (original combination)
    12. Species Cyclostoma (Leptopoma) semiclausum L. Pfeiffer, 1855 accepted as Leptopoma semiclausum (L. Pfeiffer, 1855) (original combination)
    13. Species Cyclostoma (Leptopoma) sericatum (L. Pfeiffer, 1852) accepted as Leptopoma sericatum L. Pfeiffer, 1852 (unaccepted > superseded combination)
    14. Species Cyclostoma (Leptopoma) signatum L. Pfeiffer, 1857 accepted as Leptopoma signatum (L. Pfeiffer, 1857) (original combination)
    15. Species Cyclostoma (Leptopoma) subconicum L. Pfeiffer, 1859 accepted as Japonia subconica (L. Pfeiffer, 1859) (original combination)
  25. Subgenus Cyclostoma (Ligatella) E. von Martens, 1880 accepted as Ligatella E. von Martens, 1880 accepted as Tropidophora Troschel, 1847
  26. Subgenus Cyclostoma (Megalomastoma) Swainson, 1840 accepted as Megalomastoma Swainson, 1840 (unaccepted combination)
    1. Species Cyclostoma (Megalomastoma) brunneum Swainson, 1840 accepted as Megalomastoma brunneum (Swainson, 1840) (basionym)
    2. Species Cyclostoma (Megalomastoma) croceum (Gmelin, 1791) accepted as Neopupina crocea (Gmelin, 1791) (unaccepted combination)
    3. Species Cyclostoma (Megalomastoma) myersii Haines, 1855 accepted as Pollicaria myersii (Haines, 1855) (basionym)
    4. Species Cyclostoma (Megalomastoma) verruculosum Shuttleworth, 1854 accepted as Megalomastoma verruculosum (Shuttleworth, 1854) (original combination)
  27. Subgenus Cyclostoma (Opisthophorus) W. H. Benson, 1851 accepted as Opisthoporus W. H. Benson, 1851 (unaccepted > misspelling - incorrect subsequent spelling, incorrect subsequent spelling and unaccepted rank)
    1. Species Cyclostoma (Opisthophorus) cochinchinense L. Pfeiffer, 1857 accepted as Rhiostoma cochinchinense (L. Pfeiffer, 1857) (unaccepted > superseded combination, basionym)
    2. Species Cyclostoma (Opisthophorus) euryomphalum L. Pfeiffer, 1857 accepted as Opisthoporus euryomphalus (L. Pfeiffer, 1857) (misspelling of original subgenus, Opisthoporus Benson, 1851)
  28. Subgenus Cyclostoma (Opisthoporus) W. H. Benson, 1851 accepted as Opisthoporus W. H. Benson, 1851 (unaccepted > superseded combination)
    1. Species Cyclostoma (Opisthoporus) euryomphalum L. Pfeiffer, 1857 accepted as Opisthoporus euryomphalus (L. Pfeiffer, 1857) (original combination)
  29. Subgenus Cyclostoma (Otopoma) Gray, 1850 accepted as Otopoma J. E. Gray, 1850
    1. Species Cyclostoma (Otopoma) comorense L. Pfeiffer, 1855 accepted as Otopoma flexilabrum (G. B. Sowerby I, 1843) (junior synonym)
    2. Species Cyclostoma (Otopoma) grandidieri Crosse & P. Fischer, 1868 represented as Cyclostoma grandidieri Crosse & P. Fischer, 1868 accepted as Tropidophora philippiana (L. Pfeiffer, 1852) (basionym)
  30. Subgenus Cyclostoma (Pomatias) S. Studer, 1789 accepted as Pomatias S. Studer, 1789
    1. Species Cyclostoma (Pomatias) partioti Saint-Simon, 1848 accepted as Obscurella partioti (Saint-Simon, 1848) (basionym)
  31. Subgenus Cyclostoma (Pterocyclos) W. H. Benson, 1832 accepted as Pterocyclos W. H. Benson, 1832
    1. Species Cyclostoma (Pterocyclos) charbonnieri Recluz, 1851 accepted as Opisthoporus biciliatus (Mousson, 1849) (junior synonym)
  32. Subgenus Cyclostoma (Tropidophora) Troschel, 1847 accepted as Tropidophora Troschel, 1847
    1. Species Cyclostoma (Tropidophora) kraussianum L. Pfeiffer, 1854 accepted as Tropidophora kraussiana (L. Pfeiffer, 1854) (unaccepted > superseded combination)
    2. Species Cyclostoma (Tropidophora) lirata L. Pfeiffer, 1854 accepted as Tropidophora lirata (L. Pfeiffer, 1854) (unaccepted > superseded combination)
    3. Species Cyclostoma (Tropidophora) tricarinatum (O. F. Müller, 1774) accepted as Tropidophora tricarinata (O. F. Müller, 1774) (unaccepted > superseded combination)
    4. Species Cyclostoma (Tropidophora) caldwellianum G. Nevill, 1878 (uncertain > taxon inquirendum)
    5. Species Cyclostoma (Tropidophora) erronea G. Nevill, 1881 (uncertain > taxon inquirendum)
  33. Subgenus Cyclostoma (Tudora) Gray, 1850 accepted as Tudora J. E. Gray, 1850 (unaccepted combination)
    1. Species Cyclostoma (Tudora) kazika Weinland, 1876 (uncertain > taxon inquirendum)
    2. Species Cyclostoma (Tudora) planospirum L. Pfeiffer, 1856 (uncertain > taxon inquirendum)
  34. Subgenus Cyclostoma (Tudorella) P. Fischer, 1885 accepted as Tudorella P. Fischer, 1885 (original rank)
    1. Species Cyclostoma (Tudorella) sulcatum (Draparnaud, 1805) accepted as Tudorella sulcata (Draparnaud, 1805)
  35. Species Cyclostoma abbreviata Matheron, 1832 † accepted as Rognacia abbreviata (Matheron, 1832) † (unaccepted > superseded combination)
  36. Species Cyclostoma abnatum L. Pfeiffer, 1858 accepted as Parachondria abnata (L. Pfeiffer, 1858) (unaccepted > superseded combination, basionym)
  37. Species Cyclostoma acerbulum Morelet, 1851 accepted as Parachondrops acerbulus (Morelet, 1851) (original combination)
  38. Species Cyclostoma achatinum Draparnaud, 1801 accepted as Viviparus viviparus (Linnaeus, 1758) (a junior synonym)
  39. Species Cyclostoma aculeosum C. B. Adams, 1849 accepted as Annularia hilliana aculeosa (C. B. Adams, 1849) (original combination)
  40. Species Cyclostoma acuminatum G. B. Sowerby I, 1843 accepted as Leptopoma acuminatum (G. B. Sowerby I, 1843) (use in recent liteature currently undocumented)
  41. Species Cyclostoma acutimarginatum G. B. Sowerby I, 1842 accepted as Cyclophorus acutimarginatus (G. B. Sowerby I, 1842) (original combination)
  42. Species Cyclostoma acutum Draparnaud, 1805 accepted as Hydrobia acuta (Draparnaud, 1805) (original combination)
  43. Species Cyclostoma adamsi L. Pfeiffer, 1846 accepted as Parachondria adamsi (L. Pfeiffer, 1846) (original combination)
  44. Species Cyclostoma aequivocum Reeve, 1861 accepted as Chondropometes aequivocum (Reeve, 1861) (invalid; not L. Pfeiffer, 1857)
  45. Species Cyclostoma affine G. B. Sowerby I, 1843 accepted as Tropidophora ligata var. affinis (G. B. Sowerby I, 1843) accepted as Tropidophora ligata (O. F. Müller, 1774) (original combination)
  46. Species Cyclostoma aguilerianum Arango, 1876 accepted as Opisthosiphon aguilerianum (Arango, 1876) (unaccepted > superseded combination)
  47. Species Cyclostoma alatum L. Pfeiffer, 1853 accepted as Annularisca alata (L. Pfeiffer, 1852) (unaccepted > superseded combination)
  48. Species Cyclostoma alayerianum Ancey, 1902 accepted as Tropidophora crenulata Fulton, 1902 (unaccepted > junior subjective synonym)
  49. Species Cyclostoma albersi L. Pfeiffer, 1847 accepted as Crossopoma albersi (L. Pfeiffer, 1847) (unaccepted combination)
  50. Species Cyclostoma alberti Dujardin, 1837 † accepted as Dissostoma mumia alberti (Dujardin, 1837) † (superseded rank and combination)
  51. Species Cyclostoma albescens Weinland, 1862 accepted as Sallepoma ambiguum (Lamarck, 1822) (junior synonym)
  52. Species Cyclostoma albicans G. B. Sowerby I, 1839 accepted as Socotora albicans (G. B. Sowerby I, 1839)
  53. Species Cyclostoma albida Hombron & Jacquinot, 1848 accepted as Ostodes strigatus (A. Gould, 1847) (junior synonym)
  54. Species Cyclostoma album G. B. Sowerby I, 1843 accepted as Colobostylus albus (G. B. Sowerby I, 1833) (original combination)
  55. Species Cyclostoma alluaudi Dautzenberg, 1895 accepted as Tropidophora alluaudi (Dautzenberg, 1895) (original combination)
  56. Species Cyclostoma alternans L. Pfeiffer, 1853 accepted as Tropidophora alternans (L. Pfeiffer, 1853) (original combination)
  57. Species Cyclostoma altum G. B. Sowerby I, 1842 accepted as Coptocheilus altus (G. B. Sowerby I, 1842) (original combination)
  58. Species Cyclostoma alutaceum L. Pfeiffer, 1846 accepted as Farcimen alutaceum (L. Pfeiffer, 1846) (original combination)
  59. Species Cyclostoma amabile C. B. Adams, 1849 accepted as Annularia scabricula amabilis (C. B. Adams, 1849) (original combination)
  60. Species Cyclostoma amandum C. B. Adams, 1849 accepted as Annularia hilliana amanda (C. B. Adams, 1849) (original combination)
  61. Species Cyclostoma ambigua Delessert, 1841 accepted as Colobostylus interruptus (Lamarck, 1822) (junior homonym of Cyclostoma ambigua Lamarck, 1822)
  62. Species Cyclostoma ambigua Lamarck, 1822 accepted as Sallepoma ambiguum (Lamarck, 1822) (unaccepted > superseded combination)
  63. Species Cyclostoma ammonis Gassies, 1859 accepted as Ostodes ammonis (Gassies, 1859) (original combination)
  64. Species Cyclostoma anceps E. von Martens, 1878 accepted as Tropidophora anceps (E. von Martens, 1878) (original combination)
  65. Species Cyclostoma andrewsae Ancey, 1886 accepted as Tudorisca andrewsae (Ancey, 1886) (unaccepted > superseded combination)
  66. Species Cyclostoma angulifera Souleyet, 1841 accepted as Pterocyclos anguliferus (Souleyet, 1841) (original combination)
  67. Species Cyclostoma annulatum Troschel, 1847 accepted as Theobaldius annulatus (L. Pfeiffer, 1852) (unaccepted > nomen nudum, original combination)
  68. Species Cyclostoma anomalum C. B. Adams, 1850 accepted as Annularia anomala (C. B. Adams, 1850) (unaccepted combination)
  69. Species Cyclostoma anostoma W. H. Benson, 1852 accepted as Schistoloma anostoma (W. H. Benson, 1852) accepted as Coptocheilus anostomus (W. H. Benson, 1852) (original combination)
  70. Species Cyclostoma antillarum G. B. Sowerby I, 1843 accepted as Megalomastoma antillarum (G. B. Sowerby I, 1843) (original combination)
  71. Species Cyclostoma apertum Poey, 1851 accepted as Farcimen tortum (W. Wood, 1828) (unaccepted > junior subjective synonym)
  72. Species Cyclostoma apiae Récluz, 1851 accepted as Ostodes plicatus (A. Gould, 1847) (junior synonym)
  73. Species Cyclostoma aplustre G. B. Sowerby I, 1849 accepted as Tropidophora semidecussata var. aplustre (G. B. Sowerby I, 1849) accepted as Tropidophora semidecussata (L. Pfeiffer, 1847) (unaccepted > junior subjective synonym)
  74. Species Cyclostoma appendiculatum L. Pfeiffer, 1854 accepted as Cyclophorus appendiculatus L. Pfeiffer, 1854 (unaccepted > superseded combination)
  75. Species Cyclostoma apricum Mousson, 1847 accepted as Obscurella aprica (Mousson, 1847) (original name)
  76. Species Cyclostoma aquensis Matheron, 1843 † accepted as Ischurostoma formosum (Boubée, 1832) † (unaccepted > junior subjective synonym)
  77. Species Cyclostoma aquilum G. B. Sowerby I, 1843 accepted as Cyclophorus aquilus (G. B. Sowerby I, 1843) (original combination)
  78. Species Cyclostoma arangianum L. Pfeiffer, 1857 accepted as Diplopoma arangiana (L. Pfeiffer, 1857) (unaccepted > superseded combination)
  79. Species Cyclostoma aratum W. H. Benson, 1851 accepted as Cyclotopsis subdiscoidea (G. B. Sowerby I, 1850) (unaccepted > junior subjective synonym)
  80. Species Cyclostoma architectonicum L. Pfeiffer, 1859 accepted as Diplopoma architectonicum (L. Pfeiffer, 1859) (unaccepted > superseded combination)
  81. Species Cyclostoma armatum C. B. Adams, 1849 accepted as Parachondria armata (C. B. Adams, 1849) (original combination)
  82. Species Cyclostoma arnoudii Michaud, 1837 † accepted as Ischurostoma arnoudii (Michaud, 1837) † (unaccepted > superseded combination)
  83. Species Cyclostoma artense Montrouzier, 1859 accepted as Gassiesia artensis (Montrouzier, 1859) (original combination)
  84. Species Cyclostoma articulata J. E. Gray, 1833 accepted as Tropidophora articulata (J. E. Gray, 1833) (original combination)
  85. Species Cyclostoma articulatum G. B. Sowerby I, 1843 accepted as Adamsiella variabilis variabilis (C. B. Adams, 1849) (junior homonym of Cyclostoma articulata Gray, 1836; junior synonym)
  86. Species Cyclostoma asperulum G. B. Sowerby I, 1843 accepted as Cyclopilsbrya asperula (G. B. Sowerby I, 1843) (basionym)
  87. Species Cyclostoma asperum Potiez & Michaud, 1838 accepted as Tropidophora aspera (Potiez & Michaud, 1838) (original combination)
  88. Species Cyclostoma aspratile Morelet, 1873 accepted as Subannularia lachneri (L. Pfeiffer, 1862) (unaccepted > junior subjective synonym)
  89. Species Cyclostoma atramentarium G. B. Sowerby I, 1843 accepted as Cyclophorus atramentarium (G. B. Sowerby I, 1843) (original combination)
  90. Species Cyclostoma atricapillum G. B. Sowerby I, 1843 accepted as Leptopoma atricapillum (G. B. Sowerby I, 1843) (original combination)
  91. Species Cyclostoma auberianum A. d'Orbigny, 1842 accepted as Parachondria auberiana (A. d'Orbigny, 1842) (unaccepted > superseded combination, basionym)
  92. Species Cyclostoma augustae C. B. Adams, 1849 accepted as Colobostylus augustae (C. B. Adams, 1849)
  93. Species Cyclostoma aurantiacum Deshayes, 1832 accepted as Omphalotropis aurantiaca (Deshayes, 1832) accepted as Omphalotropis rubens (Quoy & Gaimard, 1832) (original combination)
  94. Species Cyclostoma aurantium Anton, 1838 accepted as Cyclostoma sulcatum Draparnaud, 1805 accepted as Tudorella sulcata (Draparnaud, 1805) (junior synonym)
  95. Species Cyclostoma auricomum L. Pfeiffer, 1859 accepted as Annularisca auricoma (L. Pfeiffer, 1859) (unaccepted > superseded combination, original combination)
  96. Species Cyclostoma auriculare J. E. Gray, 1833 accepted as Socotora auricularis (J. E. Gray, 1833) (original combination)
  97. Species Cyclostoma auriculatum A. d'Orbigny, 1842 accepted as Farcimen auriculatum (A. d'Orbigny, 1842) (unaccepted > superseded combination)
  98. Species Cyclostoma auritum Rossmässler, 1837 accepted as Cochlostoma auritum (Rossmässler, 1837) (original combination)
  99. Species Cyclostoma aurora C. B. Adams, 1849 accepted as Parachondria aurora (C. B. Adams, 1849) (original combination)
  100. Species Cyclostoma aurora W. H. Benson, 1851 accepted as Cyclophorus aurora (W. H. Benson, 1851) (invalid; not C. B. Adams, 1849)
  101. Species Cyclostoma avena C. B. Adams, 1849 accepted as Parachondria avena (C. B. Adams, 1849) (original combination)
  102. Species Cyclostoma azaolanum J. C. Jay, 1850 accepted as Leptopoma (Trocholeptopoma) maculatum (I. Lea, 1838) represented as Leptopoma maculatum (I. Lea, 1838) (unaccepted > junior subjective synonym)
  103. Species Cyclostoma balteatum G. B. Sowerby III, 1874 accepted as Tropidophora balteata (G. B. Sowerby III, 1874)
  104. Species Cyclostoma banksianum G. B. Sowerby I, 1843 accepted as Colobostylus banksianus (G. B. Sowerby I, 1843) (original combination)
  105. Species Cyclostoma barbata A. Gould, 1859 accepted as Japonia gouldi Kobelt, 1902 (invalid: junior homonym of Cyclostoma barbatum L. Pfeiffer, 1855; Japonia gouldi is a replacement name )
  106. Species Cyclostoma barclayanum L. Pfeiffer, 1854 accepted as Tropidophora michaudii (Grateloup, 1840) (unaccepted > junior subjective synonym)
  107. Species Cyclostoma barklyanum Chitty, 1853 accepted as Parachondria barklyana (Chitty, 1853) (original combination)
  108. Species Cyclostoma basicarinatum L. Pfeiffer, 1855 accepted as Parachondria basicarinata (L. Pfeiffer, 1855) (original combination)
  109. Species Cyclostoma baudoni Michaud, 1862 † accepted as Tudorella baudoni (Michaud, 1862) † (unaccepted > superseded combination)
  110. Species Cyclostoma beauiana Petit de la Saussaye, 1853 accepted as Amphicyclotulus beauianus (Petit de la Saussaye, 1853) (unaccepted > superseded combination)
  111. Species Cyclostoma belangeri L. Pfeiffer, 1846 accepted as Omphalotropis rubens (Quoy & Gaimard, 1832) (unaccepted > junior subjective synonym)
  112. Species Cyclostoma bensoni L. Pfeiffer, 1854 accepted as Cyclophorus bensoni L. Pfeiffer, 1852
  113. Species Cyclostoma betsileoense E. A. Smith, 1882 accepted as Tropidophora betsileoensis (E. A. Smith, 1882) (original combination)
  114. Species Cyclostoma bewsheri Morelet, 1875 accepted as Tropidophora eugeniae (Reeve, 1857) (unaccepted > junior subjective synonym)
  115. Species Cyclostoma bialozurkense Du Bois de Montpéreux, 1831 † accepted as Hydrobia bialozurkensis (Du Bois de Montpéreux, 1831) † (unaccepted > superseded combination)
  116. Species Cyclostoma biangulatum Pease, 1865 accepted as Garrettia biangulata (Pease, 1865) (original combination)
  117. Species Cyclostoma bicarinatum G. B. Sowerby I, 1843 accepted as Tropidophora bicarinata (G. B. Sowerby I, 1843) (unaccepted > superseded combination)
  118. Species Cyclostoma bicolor A. Gould, 1842 accepted as Farcimen auriculatum bicolor (A. Gould, 1842) (unaccepted > superseded combination)
  119. Species Cyclostoma bilabiata A. d'Orbigny, 1842 accepted as Rhytidothyra bilabiata (A. d'Orbigny, 1842) (unaccepted > incorrect grammatical agreement of specific epithet)
  120. Species Cyclostoma bilabiatum A. d'Orbigny, 1842 accepted as Rhytidothyra bilabiata (A. d'Orbigny, 1842) (unaccepted > superseded combination)
  121. Species Cyclostoma bilabre Menke, 1843 accepted as Chondropoma rufilabre (Potiez & Michaud, 1838) (unaccepted > junior subjective synonym)
  122. Species Cyclostoma binneyanum L. Pfeiffer, 1846 accepted as Adamsiella pulchrior (C. B. Adams, 1845) (unaccepted > junior subjective synonym)
  123. Species Cyclostoma bipartitum Morelet, 1875 † accepted as Tropidophora eugeniae (Reeve, 1857) (unaccepted > junior subjective synonym)
  124. Species Cyclostoma birmanus (L. Pfeiffer, 1852) accepted as Cyclophorus birmanus (L. Pfeiffer, 1852) (unaccepted > superseded combination)
  125. Species Cyclostoma birostre L. Pfeiffer, 1855 accepted as Opisthoporus birostris (L. Pfeiffer, 1855) (original combination)
  126. Species Cyclostoma bisulcatoides Roman, 1907 † accepted as Pomatias bisulcatoides (Roman, 1907) † (unaccepted > superseded combination)
  127. Species Cyclostoma bisulcatum Zieten, 1832 † accepted as Pomatias bisulcatus (Zieten, 1832) † (unaccepted > superseded combination)
  128. Species Cyclostoma bituberculatum G. B. Sowerby I, 1850 accepted as Farcimen bituberculatum (G. B. Sowerby I, 1850) (unaccepted > superseded combination)
  129. Species Cyclostoma blanchetianum S. Moricand, 1836 accepted as Aperostoma blanchetianum (S. Moricand, 1836) (original combination)
  130. Species Cyclostoma blandianum C. B. Adams, 1849 accepted as Annularia lima blandiana (C. B. Adams, 1849) (original combination)
  131. Species Cyclostoma bocageanum Gassies, 1863 accepted as Gassiesia forbesiana (L. Pfeiffer, 1855) (junior synonym)
  132. Species Cyclostoma borneense Metcalfe, 1852 accepted as Cyclophorus perdix borneensis (Metcalfe, 1852) (unaccepted > superseded combination)
  133. Species Cyclostoma borneensis Metcalfe, 1852 (unaccepted > incorrect grammatical agreement of specific epithet)
  134. Species Cyclostoma brasiliense G. B. Sowerby I, 1839 (unaccepted)
  135. Species Cyclostoma brauni Noulet, 1854 † (unaccepted > superseded combination)
  136. Species Cyclostoma breve Draparnaud, 1805 (unaccepted > superseded combination)
  137. Species Cyclostoma breve L. Pfeiffer, 1846 (unaccepted > junior homonym, invalid: junior homonym of Cyclostoma breve Draparnaud, 1805)
  138. Species Cyclostoma bronnii C. B. Adams, 1845 (unaccepted > superseded combination)
  139. Species Cyclostoma brunneum Swainson, 1840 (unaccepted, original combination)
  140. Species Cyclostoma bulimoides Matheron, 1832 † (unaccepted > superseded combination)
  141. Species Cyclostoma burgundiae J. Martin, 1866 † (unaccepted > superseded combination)
  142. Species Cyclostoma cadurcense Noulet, 1854 † (unaccepted > superseded combination)
  143. Species Cyclostoma caffrum Reeve, 1861 (unaccepted, original combination)
  144. Species Cyclostoma calcareum G. B. Sowerby I, 1843 (unaccepted, original combination)
  145. Species Cyclostoma cambieri Bourguignat, 1890 (unaccepted > superseded combination)
  146. Species Cyclostoma campaneum Bourguignat, 1881 † (unaccepted > junior subjective synonym)
  147. Species Cyclostoma campanulatum L. Pfeiffer, 1847 (unaccepted > junior subjective synonym)
  148. Species Cyclostoma campbelli C. B. Adams, 1851 (unaccepted)
  149. Species Cyclostoma campbellii C. B. Adams, 1851 (unaccepted, original combination)
  150. Species Cyclostoma canaliferum G. B. Sowerby I, 1842 (unaccepted, original combination)
  151. Species Cyclostoma canariense A. d'Orbigny, 1836 (unaccepted > superseded combination)
  152. Species Cyclostoma candeana A. d'Orbigny, 1842 (unaccepted > superseded combination)
  153. Species Cyclostoma candidum G. B. Sowerby I, 1843 (unaccepted, junior synonym)
  154. Species Cyclostoma cantori W. H. Benson, 1851 (unaccepted, original combination)
  155. Species Cyclostoma carinatum (Olivier, 1804) (unaccepted > superseded combination)
  156. Species Cyclostoma cariniferum G. B. Sowerby I, 1842 (unaccepted)
  157. Species Cyclostoma carnicolor Ancey, 1902 (unaccepted > junior subjective synonym)
  158. Species Cyclostoma carthusianum J. Martin, 1866 † (unaccepted > superseded combination)
  159. Species Cyclostoma caspius "Mousson, 1876" (unaccepted, misspelling )
  160. Species Cyclostoma castaneum (L. Pfeiffer, 1852) (unaccepted > superseded combination)
  161. Species Cyclostoma castum L. Pfeiffer, 1854 (unaccepted > junior subjective synonym)
  162. Species Cyclostoma catenatum A. Gould, 1842 (unaccepted > superseded combination)
  163. Species Cyclostoma cattaroense L. Pfeiffer, 1841 (unaccepted > superseded combination)
  164. Species Cyclostoma cerastum Mabille, 1886 (unaccepted)
  165. Species Cyclostoma charpentieri Mousson, 1849 (unaccepted, original combination)
  166. Species Cyclostoma chevalieri C. B. Adams, 1851 (unaccepted, original combination)
  167. Species Cyclostoma chittyi C. B. Adams, 1849 (unaccepted, original combination)
  168. Species Cyclostoma chordatum L. Pfeiffer, 1858 (unaccepted > superseded combination)
  169. Species Cyclostoma chordiferum L. Pfeiffer, 1855 (unaccepted, junior synonym)
  170. Species Cyclostoma chromium Morelet, 1877 (unaccepted > superseded combination)
  171. Species Cyclostoma chrysalis L. Pfeiffer, 1854 (unaccepted, original combination)
  172. Species Cyclostoma ciliatum G. B. Sowerby I, 1843 (unaccepted, original combination)
  173. Species Cyclostoma ciliferum Mousson, 1849 (unaccepted, original combination)
  174. Species Cyclostoma cincinnatiensis I. Lea, 1840 (unaccepted > superseded combination)
  175. Species Cyclostoma cincinnus G. B. Sowerby I, 1843 (unaccepted > superseded combination, basionym)
  176. Species Cyclostoma cinclidodes L. Pfeiffer, 1854 (unaccepted > superseded combination, basionym)
  177. Species Cyclostoma cinerascens Rossmässler, 1837 (unaccepted, original combination)
  178. Species Cyclostoma cingulatum G. B. Sowerby I, 1843 (unaccepted, original combination)
  179. Species Cyclostoma citharella A. Gould, 1859 (unaccepted, superseded combination)
  180. Species Cyclostoma citrinum G. B. Sowerby I, 1843 (unaccepted > junior subjective synonym)
  181. Species Cyclostoma clandestinum Deshayes, 1863 † (unaccepted > superseded combination)
  182. Species Cyclostoma clathratula Récluz, 1843 (unaccepted, original combination)
  183. Species Cyclostoma clathratum A. Gould, 1842 (unaccepted > superseded combination)
  184. Species Cyclostoma claudicans Poey, 1851 (unaccepted > superseded combination)
  185. Species Cyclostoma clausum G. B. Sowerby I, 1843 (unaccepted, original combination)
  186. Species Cyclostoma cnissum Mabille, 1886 (unaccepted)
  187. Species Cyclostoma coeloconus W. H. Benson, 1851 (unaccepted, original combination)
  188. Species Cyclostoma colombiensis A. Férussac, 1835 (unaccepted > junior subjective synonym)
  189. Species Cyclostoma comorense L. Pfeiffer, 1855 (unaccepted)
  190. Species Cyclostoma concentricum C. B. Adams, 1849 (unaccepted, junior synonym)
  191. Species Cyclostoma concinnum Scacchi, 1836 (unaccepted, synonym)
  192. Species Cyclostoma concinnum G. B. Sowerby I, 1841 (unaccepted, original combination)
  193. Species Cyclostoma confertum Poey, 1851 (unaccepted > junior subjective synonym)
  194. Species Cyclostoma congener E. A. Smith, 1882 (unaccepted)
  195. Species Cyclostoma conicum Klein, 1853 † (unaccepted > superseded combination)
  196. Species Cyclostoma conoidea de Boissy, 1848 † (unaccepted > junior homonym, junior homonym of Cyclostoma conoidea Pfeiffer, 1846; Bolania rillyensis is a replacement name)
  197. Species Cyclostoma conoideum L. Pfeiffer, 1846 (unaccepted > superseded combination)
  198. Species Cyclostoma consanguineum G. B. Sowerby III, 1874 (unaccepted > junior subjective synonym)
  199. Species Cyclostoma constrictum W. H. Benson, 1851 (unaccepted, original combination)
  200. Species Cyclostoma contectum Millet, 1813 (unaccepted, original combination)
  201. Species Cyclostoma copanense G. B. Sowerby I, 1850 (unaccepted, original combination)
  202. Species Cyclostoma coquandianum Petit de la Saussaye, 1852 (unaccepted > superseded combination, basionym)
  203. Species Cyclostoma coquandii Matheron, 1843 † (unaccepted > junior subjective synonym)
  204. Species Cyclostoma corniculum Mousson, 1849 (unaccepted, original combination)
  205. Species Cyclostoma cornuvenatorium G. B. Sowerby I, 1843 (unaccepted, senior homonym)
  206. Species Cyclostoma coronadoi Poey, 1860 (unaccepted > superseded combination)
  207. Species Cyclostoma corrugatum G. B. Sowerby I, 1843 (unaccepted, original combination)
  208. Species Cyclostoma corrugatum Menke, 1829 (unaccepted, original combination)
  209. Species Cyclostoma costatum L. Pfeiffer, 1846 (unaccepted, original combination)
  210. Species Cyclostoma costulatum Rossmässler, 1837 (unaccepted, junior synonym)
  211. Species Cyclostoma coudertii P. Fischer & Bernardi, 1857 (unaccepted, junior synonym)
  212. Species Cyclostoma courdertii P. Fischer & Bernardi, 1857 (unaccepted, incorrect original spelling: named after M. Coudert)
  213. Species Cyclostoma crassum C. B. Adams, 1851 (unaccepted, original combination)
  214. Species Cyclostoma crassum L. Pfeiffer, 1853 (unaccepted, invalid: not Cyclostoma crassum C. B. Adams, 1851)
  215. Species Cyclostoma crenimargo L. Pfeiffer, 1858 (unaccepted > superseded combination)
  216. Species Cyclostoma crenulatum L. Pfeiffer, 1839 (unaccepted, junior homonym of Cyclostoma crenulatum Potiez & Michaud, 1838)
  217. Species Cyclostoma crenulatum G. B. Sowerby I, 1843 (unaccepted, invalid; not Potiez & Michaud, 1838 nor Pfeiffer, 1839; Cyclostoma adamsi is a replacment name)
  218. Species Cyclostoma crenulatum Potiez & Michaud, 1838 (unaccepted, original combination)
  219. Species Cyclostoma crenulosum C. B. Adams, 1849 (unaccepted, original combination)
  220. Species Cyclostoma creplini Dunker, 1849 (unaccepted > superseded combination)
  221. Species Cyclostoma croceum G. B. Sowerby I, 1843 (unaccepted, original combination)
  222. Species Cyclostoma crosseanum Morelet, 1877 (unaccepted > junior subjective synonym)
  223. Species Cyclostoma cucullata A. Gould, 1856 (unaccepted, superseded combination)
  224. Species Cyclostoma cumingii G. B. Sowerby I, 1832 (unaccepted, original combination)
  225. Species Cyclostoma cuspidatum W. H. Benson, 1851 (unaccepted, original combination)
  226. Species Cyclostoma cuvieriana Petit de la Saussaye, 1841 (unaccepted, original combination)
  227. Species Cyclostoma daudinoti L. Pfeiffer, 1859 (unaccepted > superseded combination)
  228. Species Cyclostoma deburghiae Reeve, 1861 (unaccepted, original combination)
  229. Species Cyclostoma decoloratum L. Pfeiffer, 1859 (unaccepted, original combination)
  230. Species Cyclostoma decurrens Poey, 1858 (unaccepted > superseded combination)
  231. Species Cyclostoma decussata Lamarck, 1822 (unaccepted > superseded combination)
  232. Species Cyclostoma decussatulum C. B. Adams, 1849 (unaccepted, junior synonym)
  233. Species Cyclostoma decussatum G. B. Sowerby I, 1850 (unaccepted, not Lamarck, 1822)
  234. Species Cyclostoma deficiens Gundlach, 1857 (unaccepted > superseded combination)
  235. Species Cyclostoma defloratum Morelet, 1876 † (unaccepted > junior subjective synonym)
  236. Species Cyclostoma delatreana A. d'Orbigny, 1842 (unaccepted > superseded combination)
  237. Species Cyclostoma deliciosum G. B. Sowerby I, 1850 (unaccepted, original combination)
  238. Species Cyclostoma denansi Mabille, 1886 (unaccepted)
  239. Species Cyclostoma denegatum Poey, 1858 (unaccepted > junior subjective synonym)
  240. Species Cyclostoma denselineatus L. Pfeiffer, 1854 (unaccepted, original combination)
  241. Species Cyclostoma dentatum Say, 1825 (unaccepted)
  242. Species Cyclostoma deplanatum L. Pfeiffer, 1855 (unaccepted, original combination)
  243. Species Cyclostoma depressum G. B. Sowerby I, 1850 (unaccepted, junior synonym)
  244. Species Cyclostoma desciscens L. Pfeiffer, 1853 (unaccepted, junior synonym)
  245. Species Cyclostoma deshayesianum Petit de la Saussaye, 1844 (unaccepted, original combination)
  246. Species Cyclostoma desmazuresi Crosse, 1873 (unaccepted, original combination)
  247. Species Cyclostoma diatretum A. Gould, 1847 (unaccepted > junior subjective synonym)
  248. Species Cyclostoma discoideum G. B. Sowerby I, 1843 (unaccepted, original combination)
  249. Species Cyclostoma disjuncta Matheron, 1832 † (unaccepted > superseded combination)
  250. Species Cyclostoma disjunctum Morelet, 1849 (unaccepted, invalid: junior homonym of C. disjunctum Matheron, 1832, and C. disjunctum Moricand, 1846; C. moreletianum is a replacement name)
  251. Species Cyclostoma disjunctum S. Moricand, 1846 (unaccepted > junior homonym, invalid: junior homonym of Cyclostoma disjunctum Matheron, 1832; Cyclostoma moricandi is a replacement name)
  252. Species Cyclostoma dissotropis Morelet, 1882 † (unaccepted, possible junior synonym)
  253. Species Cyclostoma distinctum G. B. Sowerby I, 1843 (unaccepted, original combination)
  254. Species Cyclostoma distomella G. B. Sowerby I, 1843 (unaccepted, original combination)
  255. Species Cyclostoma distortum Haines, 1855 (unaccepted, original combination)
  256. Species Cyclostoma divionense J. Martin, 1866 † (unaccepted > superseded combination)
  257. Species Cyclostoma dolium Thomä, 1845 † (unaccepted > junior subjective synonym)
  258. Species Cyclostoma dominicense L. Pfeiffer, 1850 (unaccepted, original combination)
  259. Species Cyclostoma draparnaudii Matheron, 1843 † (unaccepted > superseded combination)
  260. Species Cyclostoma dubiosum C. B. Adams, 1851 (unaccepted > superseded combination)
  261. Species Cyclostoma dubium L. Pfeiffer, 1846 (unaccepted, original combination)
  262. Species Cyclostoma duffianum C. B. Adams, 1845 (unaccepted > superseded combination)
  263. Species Cyclostoma duisabonis Grateloup, 1840 (unaccepted > junior subjective synonym)
  264. Species Cyclostoma dupontianum Morelet, 1876 (unaccepted, junior synonym)
  265. Species Cyclostoma dutemplei Deshayes, 1863 † (unaccepted > superseded combination)
  266. Species Cyclostoma dyganum Mabille, 1886 (unaccepted)
  267. Species Cyclostoma dysoni L. Pfeiffer, 1853 (unaccepted, original combination)
  268. Species Cyclostoma eburneum L. Pfeiffer, 1858 (unaccepted > superseded combination)
  269. Species Cyclostoma echinatum L. Pfeiffer, 1857 (unaccepted > superseded combination)
  270. Species Cyclostoma egregium Gundlach, 1856 (unaccepted > superseded combination)
  271. Species Cyclostoma elatum (L. Pfeiffer, 1852) (unaccepted > superseded combination)
  272. Species Cyclostoma elegans (O. F. Müller, 1774) (unaccepted > superseded combination)
  273. Species Cyclostoma elegantilites Boubée, 1831 † (unaccepted > superseded combination)
  274. Species Cyclostoma elongatum de Serres, 1844 † (unaccepted > junior subjective synonym)
  275. Species Cyclostoma emilianum Weinland, 1862 (unaccepted, original combination)
  276. Species Cyclostoma enode Gundlach, 1860 (unaccepted > superseded combination)
  277. Species Cyclostoma erectum L. Pfeiffer, 1858 (unaccepted > superseded combination, basionym)
  278. Species Cyclostoma erosa Quoy & Gaimard, 1832 (unaccepted, incorrect gender ending of specific epithet)
  279. Species Cyclostoma erosum Quoy & Gaimard, 1832 (unaccepted, original combination)
  280. Species Cyclostoma euchilum L. Pfeiffer, 1853 (unaccepted > superseded combination)
  281. Species Cyclostoma eugeniae Reeve, 1857 (unaccepted, original combination)
  282. Species Cyclostoma eustolum Crosse & P. Fischer, 1887 (unaccepted, original combination)
  283. Species Cyclostoma evolutum Reeve, 1842 (unaccepted)
  284. Species Cyclostoma excavatum de Serres, 1844 † (unaccepted > junior subjective synonym)
  285. Species Cyclostoma excurrens L. Pfeiffer & Gundlach, 1860 (unaccepted > superseded combination)
  286. Species Cyclostoma exiguum G. B. Sowerby I, 1843 (unaccepted, original combination)
  287. Species Cyclostoma eximium Mousson, 1849 (unaccepted > junior subjective synonym, original name)
  288. Species Cyclostoma expansilabre L. Pfeiffer, 1854 (unaccepted, original combination)
  289. Species Cyclostoma expansum L. Pfeiffer, 1853 (unaccepted)
  290. Species Cyclostoma falsani Fontannes, 1876 † (unaccepted > superseded combination)
  291. Species Cyclostoma fasciata Lamarck, 1816 (unaccepted, junior synonym)
  292. Species Cyclostoma fecundum C. B. Adams, 1849 (unaccepted, original combination)
  293. Species Cyclostoma ferruginea Lamarck, 1822 (unaccepted, original combination)
  294. Species Cyclostoma fibula G. B. Sowerby I, 1843 (unaccepted, original combination)
  295. Species Cyclostoma filocinctum W. H. Benson, 1851 (unaccepted, original combination)
  296. Species Cyclostoma fimbriata Lamarck, 1822 (unaccepted > superseded combination)
  297. Species Cyclostoma fimbriatulum G. B. Sowerby I, 1825 (unaccepted, original combination)
  298. Species Cyclostoma flavula Lamarck, 1822 (unaccepted > junior subjective synonym)
  299. Species Cyclostoma flavum Broderip, 1832 (unaccepted > superseded combination)
  300. Species Cyclostoma flexilabrum G. B. Sowerby I, 1843 (unaccepted, original combination)
  301. Species Cyclostoma floridum L. Pfeiffer, 1855 (unaccepted)
  302. Species Cyclostoma foliaceum (Gmelin, 1791) (unaccepted)
  303. Species Cyclostoma formosum Boubée, 1832 † (unaccepted > superseded combination)
  304. Species Cyclostoma formosum G. B. Sowerby I, 1849 (unaccepted)
  305. Species Cyclostoma fossanense Sacco, 1884 † (unaccepted, superseded rank and combination)
  306. Species Cyclostoma foveolatum Melvill & Ponsonby, 1895 (unaccepted > superseded combination)
  307. Species Cyclostoma fragile L. Pfeiffer, 1859 (unaccepted > superseded combination)
  308. Species Cyclostoma fulguratum L. Pfeiffer, 1854 (unaccepted, original combination)
  309. Species Cyclostoma fulvescens G. B. Sowerby I, 1843 (unaccepted, original combination)
  310. Species Cyclostoma fulvifrons G. B. Sowerby I, 1842 (unaccepted > junior subjective synonym)
  311. Species Cyclostoma funiculalum W. H. Benson, 1838 (unaccepted, original combination)
  312. Species Cyclostoma fuscolineatum C. B. Adams, 1845 (unaccepted, junior synonym)
  313. Species Cyclostoma fusculum L. Pfeiffer, 1853 (unaccepted, original combination)
  314. Species Cyclostoma garelli Souleyet, 1852 (unaccepted, original combination)
  315. Species Cyclostoma gassiesi Souverbie, 1859 (unaccepted, original combination)
  316. Species Cyclostoma gayi Hupée, 1854 (unaccepted, original combination)
  317. Species Cyclostoma gibbum Eydoux, 1838 (unaccepted, invalid: junior homonym of C. gibbum Draparnaud, 1805; Alycaeus eydouxi is a replacement name)
  318. Species Cyclostoma gibbum Draparnaud, 1805 (unaccepted > superseded combination)
  319. Species Cyclostoma giganteum Reeve, 1842 (unaccepted, original combination)
  320. Species Cyclostoma gironnieri Souleyet, 1842 (unaccepted, misspelling of original species name, Cyclostoma gironnierii Souleyet, 1842)
  321. Species Cyclostoma gironnierii Souleyet, 1842 (unaccepted, junior synonym)
  322. Species Cyclostoma glabrum Zieten, 1832 † (unaccepted > superseded combination)
  323. Species Cyclostoma glaucum G. B. Sowerby II, 1843 (unaccepted, original combination)
  324. Species Cyclostoma globosum W. H. Benson, 1854 (unaccepted, original combination)
  325. Species Cyclostoma gonavense Weinland, 1880 (unaccepted, original combination)
  326. Species Cyclostoma goniostoma Reeve, 1842 (unaccepted, original combination)
  327. Species Cyclostoma goudotianum G. B. Sowerby I, 1843 (unaccepted, original combination)
  328. Species Cyclostoma gouldianum Poey, 1854 (unaccepted > superseded combination, basionym)
  329. Species Cyclostoma gracile L. Pfeiffer, 1849 (unaccepted > superseded combination)
  330. Species Cyclostoma grandidieri Crosse & P. Fischer, 1868 (unaccepted, junior synonym)
  331. Species Cyclostoma granosum C. B. Adams, 1850 (unaccepted, original combination; unaccepted rank)
  332. Species Cyclostoma granulosa Grateloup, 1827 † (unaccepted > superseded combination)
  333. Species Cyclostoma grataloupi L. Pfeiffer, 1853 (unaccepted, synonym)
  334. Species Cyclostoma grateloupi L. Pfeiffer, 1853 (unaccepted)
  335. Species Cyclostoma gratum Petit de la Saussaye, 1850 (unaccepted > superseded combination)
  336. Species Cyclostoma grayanum L. Pfeiffer, 1846 (unaccepted, original combination)
  337. Species Cyclostoma grayanum C. B. Adams, 1847 (unaccepted, junior homonym of Cyclostoma grayanum L. Pfeiffer, 1846)
  338. Species Cyclostoma grenadense Shuttleworth, 1857 (unaccepted, misspelling of original name)
  339. Species Cyclostoma griffithianum C. B. Adams, 1850 (unaccepted, original combination)
  340. Species Cyclostoma griseum L. Pfeiffer, 1854 (unaccepted)
  341. Species Cyclostoma gruneri L. Pfeiffer, 1846 (unaccepted, original combination)
  342. Species Cyclostoma guadeloupense (L. Pfeiffer, 1847) (unaccepted > junior subjective synonym)
  343. Species Cyclostoma guatemalensis L. Pfeiffer, 1853 (unaccepted, original combination)
  344. Species Cyclostoma guayaquilense G. B. Sowerby I, 1850 (unaccepted, original combination)
  345. Species Cyclostoma guestierianum Gassies, 1866 (unaccepted, original combination)
  346. Species Cyclostoma guildingianum L. Pfeiffer, 1851 (unaccepted, original combination)
  347. Species Cyclostoma guillaini Petit de la Saussaye, 1850 (unaccepted, original combination)
  348. Species Cyclostoma guimarasense G. B. Sowerby I, 1843 (unaccepted, original combination)
  349. Species Cyclostoma gutierrezi L. Pfeiffer, 1858 (unaccepted > superseded combination, basionym)
  350. Species Cyclostoma guttatum L. Pfeiffer, 1853 (unaccepted, original combination)
  351. Species Cyclostoma habichi Weinland, 1862 (unaccepted)
  352. Species Cyclostoma halophilum W. H. Benson, 1851 (unaccepted, original combination)
  353. Species Cyclostoma hanningtoni G. B. Sowerby III, 1890 (unaccepted, junior synonym)
  354. Species Cyclostoma harveianum G. B. Sowerby I, 1842 (unaccepted)
  355. Species Cyclostoma helicinaeformis de Boissy, 1848 † (unaccepted > superseded combination)
  356. Species Cyclostoma heliciniforme L. Pfeiffer, 1852 (unaccepted, original combination)
  357. Species Cyclostoma helicinum L. Pfeiffer, 1847 (unaccepted)
  358. Species Cyclostoma helicoides Grateloup, 1840 (unaccepted, original combination)
  359. Species Cyclostoma helicoides G. B. Sowerby I, 1843 (unaccepted, invalid; not Grateloup, 1840, Cyclostoma turbinatum is a replacement name)
  360. Species Cyclostoma hemiglyptum Fontannes, 1884 † (unaccepted > superseded combination)
  361. Species Cyclostoma hespericum Morelet & Drouët, 1857 (unaccepted > superseded combination)
  362. Species Cyclostoma hildebrandti E. von Martens, 1876 (unaccepted, original combination)
  363. Species Cyclostoma hillianum C. B. Adams, 1845 (unaccepted, original combination)
  364. Species Cyclostoma himalayanum L. Pfeiffer, 1853 (unaccepted)
  365. Species Cyclostoma histrio L. Pfeiffer, 1853 (unaccepted, original combination; junior synonym)
  366. Species Cyclostoma hoemastoma Grateloup, 1840 (unaccepted, junior synonym)
  367. Species Cyclostoma hoffmeisteri W. H. Benson, 1851 (unaccepted, misspelling of original name Aulopoma hofmeisteri Troschel, 1847)
  368. Species Cyclostoma honestum Poey, 1851 (unaccepted > superseded combination)
  369. Species Cyclostoma horridulum Morelet, 1882 (unaccepted > superseded combination)
  370. Species Cyclostoma housei Haines, 1855 (unaccepted, original combination)
  371. Species Cyclostoma humphreysianum L. Pfeiffer, 1846 (unaccepted, misspelling of original species name, Cyclostoma humphreysianus L. Pfeiffer, 1846)
  372. Species Cyclostoma humphreysianus L. Pfeiffer, 1846 (unaccepted, original combination)
  373. Species Cyclostoma hyacinthinum C. B. Adams, 1849 (unaccepted, original combination; junior synonym)
  374. Species Cyclostoma hydii Weinland, 1862 (unaccepted, original combination)
  375. Species Cyclostoma ictericum G. B. Sowerby I, 1843 (unaccepted, original combination)
  376. Species Cyclostoma idolum A. d'Orbigny, 1842 (unaccepted > junior objective synonym)
  377. Species Cyclostoma ignescens (L. Pfeiffer, 1852) (unaccepted > superseded combination)
  378. Species Cyclostoma ignilabre C. B. Adams, 1849 (unaccepted, original combination)
  379. Species Cyclostoma illustre Poey, 1858 (unaccepted > junior subjective synonym)
  380. Species Cyclostoma immaculatum G. B. Sowerby I, 1839 (unaccepted)
  381. Species Cyclostoma immersum Gundlach, 1857 (unaccepted, original combination)
  382. Species Cyclostoma impurum Draparnaud, 1801 (unaccepted, unnecessary sybstitute name for Helix tentaculata)
  383. Species Cyclostoma inaguense Weinland, 1880 (unaccepted, unaccepted combination)
  384. Species Cyclostoma inca A. d'Orbigny, 1835 (unaccepted > superseded combination)
  385. Species Cyclostoma incisa Hombron & Jacquinot, 1848 (unaccepted, original combination)
  386. Species Cyclostoma incomptum G. B. Sowerby I, 1850 (unaccepted, original combination)
  387. Species Cyclostoma inconspicuum G. B. Sowerby I, 1843 (unaccepted, original combination)
  388. Species Cyclostoma incultum Poey, 1851 (unaccepted)
  389. Species Cyclostoma indicum Deshayes, 1832 (unaccepted, original combination)
  390. Species Cyclostoma infans E. A. Smith, 1884 (unaccepted, original combination)
  391. Species Cyclostoma inflata Deshayes, 1824 † (unaccepted > junior subjective synonym)
  392. Species Cyclostoma inornata Redfield, 1854 (unaccepted, junior synonym)
  393. Species Cyclostoma insigne G. B. Sowerby I, 1843 (unaccepted, original combination)
  394. Species Cyclostoma insuetum Deshayes, 1863 † (unaccepted > superseded combination)
  395. Species Cyclostoma insulare L. Pfeiffer, 1854 (unaccepted, original combination)
  396. Species Cyclostoma intermedium C. B. Adams, 1849 (unaccepted)
  397. Species Cyclostoma interrupta Lamarck, 1822 (unaccepted > superseded combination)
  398. Species Cyclostoma interruptum A. Gould, 1844 (unaccepted > junior subjective synonym)
  399. Species Cyclostoma interstitiale L. Pfeiffer, 1859 (unaccepted > superseded combination)
  400. Species Cyclostoma itierii Guérin-Méneville, 1847 (unaccepted, original combination)
  401. Species Cyclostoma jagici Brusina, 1892 † (unaccepted > superseded combination)
  402. Species Cyclostoma jamaicense G. B. Sowerby I, 1843 (unaccepted)
  403. Species Cyclostoma jamaicense (Dillwyn, 1823) (unaccepted > superseded combination)
  404. Species Cyclostoma jayanum C. B. Adams, 1849 (unaccepted, original combination)
  405. Species Cyclostoma jerdoni W. H. Benson, 1851 (unaccepted, original combination)
  406. Species Cyclostoma johnsoni E. A. Smith, 1882 (unaccepted, original combination)
  407. Species Cyclostoma jousseaumianum Mabille, 1886 (unaccepted, original combination)
  408. Species Cyclostoma jugosum C. B. Adams, 1851 (unaccepted, original combination)
  409. Species Cyclostoma kochi Gaál, 1910 † (unaccepted > superseded combination)
  410. Species Cyclostoma koechlinianum Merian, 1849 † (unaccepted, superseded rank and combination)
  411. Species Cyclostoma kraussianum L. Pfeiffer, 1854 (unaccepted > superseded combination)
  412. Species Cyclostoma kuesteri L. Pfeiffer, 1852 (unaccepted > superseded combination)
  413. Species Cyclostoma labellum Thomä, 1845 † (unaccepted > superseded combination)
  414. Species Cyclostoma laetum Poey, 1858 (unaccepted > superseded combination)
  415. Species Cyclostoma laeve (W. Wood, 1828) (unaccepted)
  416. Species Cyclostoma laeve L. Pfeiffer, 1848 (unaccepted, junior secondary homonym of Turbo laevis W. Wood, 1828)
  417. Species Cyclostoma laevigatum Menke, 1830 (unaccepted, junior synonym)
  418. Species Cyclostoma laevigatum P. B. Webb & S. Berthelot, 1833 (unaccepted > junior homonym, not Cyclostoma laevigatum Menke, 1830)
  419. Species Cyclostoma lamarckii Petit de la Saussaye, 1850 (unaccepted, original combination)
  420. Species Cyclostoma lamellosum C. B. Adams, 1851 (unaccepted, original combination)
  421. Species Cyclostoma lapidaria Say, 1817 (unaccepted > superseded combination)
  422. Species Cyclostoma largillierti L. Pfeiffer, 1846 (unaccepted, original combination)
  423. Species Cyclostoma lartetii Noulet, 1854 † (unaccepted > superseded combination)
  424. Species Cyclostoma latilabris A. d'Orbigny, 1842 (unaccepted > superseded combination)
  425. Species Cyclostoma laxatum G. B. Sowerby I, 1850 (unaccepted, original combination)
  426. Species Cyclostoma leai Tryon, 1869 (unaccepted > superseded combination)
  427. Species Cyclostoma leferi Morelet, 1861 (unaccepted > superseded combination)
  428. Species Cyclostoma lemani Basterot, 1825 † (unaccepted > superseded combination)
  429. Species Cyclostoma letourneuxi (Bourguignat, 1887) (unaccepted)
  430. Species Cyclostoma leve L. Pfeiffer, 1855 (unaccepted > superseded combination)
  431. Species Cyclostoma lienardi Morelet, 1877 (unaccepted > superseded combination)
  432. Species Cyclostoma ligatula Grateloup, 1840 (unaccepted, original combination)
  433. Species Cyclostoma lignarium L. Pfeiffer, 1857 (unaccepted > superseded combination)
  434. Species Cyclostoma lima C. B. Adams, 1845 (unaccepted, original combination)
  435. Species Cyclostoma limbiferum L. Pfeiffer, 1846 (unaccepted > superseded combination)
  436. Species Cyclostoma lincinella Lamarck, 1822 (unaccepted > junior subjective synonym)
  437. Species Cyclostoma lineatum L. Pfeiffer, 1854 (unaccepted, original combination)
  438. Species Cyclostoma lineolata Lamarck, 1822 (unaccepted > superseded combination)
  439. Species Cyclostoma linguiferum G. B. Sowerby I, 1843 (unaccepted)
  440. Species Cyclostoma lingulatum G. B. Sowerby I, 1843 (unaccepted, original combination)
  441. Species Cyclostoma liricinctum W. H. Benson, 1853 (unaccepted > superseded combination, original combination)
  442. Species Cyclostoma listeri G. B. Sowerby I, 1843 (unaccepted, original combination)
  443. Species Cyclostoma lithidion G. B. Sowerby I, 1843 (unaccepted, original combination)
  444. Species Cyclostoma litturatum L. Pfeiffer, 1850 (unaccepted, junior synonym)
  445. Species Cyclostoma longicollis L. Pfeiffer, 1855 (unaccepted, original combination)
  446. Species Cyclostoma lubricum Held, 1847 (unaccepted, junior synonym)
  447. Species Cyclostoma lucidum R. T. Lowe, 1831 (unaccepted, junior synonym)
  448. Species Cyclostoma lunelii Matheron, 1843 † (unaccepted > superseded combination)
  449. Species Cyclostoma luridum L. Pfeiffer, 1858 (unaccepted, invalid; not Pfeiffer, 1852)
  450. Species Cyclostoma lutea Quoy & Gaimard, 1832 (unaccepted, junior synonym)
  451. Species Cyclostoma luteostoma G. B. Sowerby I, 1843 (unaccepted, original combination)
  452. Species Cyclostoma lutetianum Bourguignat, 1869 † (unaccepted > junior subjective synonym)
  453. Species Cyclostoma luzonicum G. B. Sowerby I, 1842 (unaccepted, junior synonym)
  454. Species Cyclostoma lychnus Morelet, 1863 (unaccepted > junior subjective synonym)
  455. Species Cyclostoma lynchus [sic] (unaccepted > misspelling - incorrect subsequent spelling)
  456. Species Cyclostoma macareae Petit de la Saussaye, 1853 (unaccepted > junior subjective synonym)
  457. Species Cyclostoma mackinlayi L. Pfeiffer, 1859 (unaccepted > superseded combination)
  458. Species Cyclostoma mactum Poey, 1852 (unaccepted > superseded combination)
  459. Species Cyclostoma maculata I. Lea, 1838 (unaccepted, original combination, incorrect gender ending)
  460. Species Cyclostoma maculatum Draparnaud, 1805 (unaccepted, junior synonym)
  461. Species Cyclostoma maculosa Souleyet, 1842 (unaccepted > junior subjective synonym)
  462. Species Cyclostoma maculosum G. B. Sowerby I, 1843 (unaccepted, original combination)
  463. Species Cyclostoma madagascariensis J. E. Gray, 1833 (unaccepted)
  464. Species Cyclostoma mahogani A. Gould, 1842 (unaccepted > junior subjective synonym)
  465. Species Cyclostoma majusculum Morelet, 1851 (unaccepted > superseded combination)
  466. Species Cyclostoma malayanum W. H. Benson, 1852 (unaccepted, original combination)
  467. Species Cyclostoma mamillare Pallary, 1898 (unaccepted, unjustified emendation by Pallary (1898))
  468. Species Cyclostoma mammillaris Lamarck, 1822 (unaccepted > superseded combination, basionym)
  469. Species Cyclostoma mani Poey, 1851 (unaccepted > superseded combination, original combination)
  470. Species Cyclostoma margarita L. Pfeiffer, 1853 (unaccepted, original combination)
  471. Species Cyclostoma marginalbum L. Pfeiffer, 1859 (unaccepted > superseded combination)
  472. Species Cyclostoma marginata Say, 1821 (unaccepted > junior homonym, invalid: junior homonym of Cyclostoma marginatum G. Fischer, 1807; Pupa albilabris is a replacement name)
  473. Species Cyclostoma maritimum C. B. Adams, 1846 (unaccepted, original combination)
  474. Species Cyclostoma massena R. P. Lesson, 1831 (unaccepted, original combination)
  475. Species Cyclostoma matheroni Deshayes, 1863 † (unaccepted > superseded combination)
  476. Species Cyclostoma mauretanica Pallary, 1898 (unaccepted, original combination)
  477. Species Cyclostoma megacheilos Potiez & Michaud, 1838 (unaccepted, original combination)
  478. Species Cyclostoma megacheilus G. B. Sowerby I, 1843 (unaccepted > junior homonym, junior primary homonym; non Cyclostoma megacheilos Potiez & Michaud, 1838)
  479. Species Cyclostoma melanostoma Petit de la Saussaye, 1841 (unaccepted, original combination)
  480. Species Cyclostoma melitense G. B. Sowerby I, 1843 (unaccepted, original combination)
  481. Species Cyclostoma menkeanum R. A. Philippi, 1847 (unaccepted > incorrect grammatical agreement of specific epithet)
  482. Species Cyclostoma mexicanum Menke, 1830 (unaccepted > superseded combination)
  483. Species Cyclostoma michaudii Grateloup, 1840 (unaccepted > superseded combination)
  484. Species Cyclostoma microstoma Deshayes, 1824 † (unaccepted > superseded combination)
  485. Species Cyclostoma milium W. H. Benson, 1853 (unaccepted, original combination)
  486. Species Cyclostoma minima Lörenthey, 1893 † (unaccepted > superseded combination)
  487. Species Cyclostoma minium L. Pfeiffer, 1858 (unaccepted > superseded combination)
  488. Species Cyclostoma minus G. B. Sowerby I, 1843 (unaccepted, original combination)
  489. Species Cyclostoma minutissimum G. B. Sowerby I, 1832 (unaccepted, original combination)
  490. Species Cyclostoma mirandum C. B. Adams, 1849 (unaccepted > superseded combination)
  491. Species Cyclostoma modestum C. B. Adams, 1849 (unaccepted, junior synonym)
  492. Species Cyclostoma modestum Petit de la Saussaye, 1850 (unaccepted > superseded combination)
  493. Species Cyclostoma monachus Morelet, 1866 (unaccepted, original combination)
  494. Species Cyclostoma moniliatum Morelet, 1881 (unaccepted, original combination)
  495. Species Cyclostoma monstrosum C. B. Adams, 1849 (unaccepted, original combination)
  496. Species Cyclostoma montrouzieri Souverbie, 1859 (unaccepted, original combination)
  497. Species Cyclostoma mordax C. B. Adams, 1849 (unaccepted, original combination)
  498. Species Cyclostoma moreleti L. Pfeiffer, 1850 (unaccepted, junior synonym)
  499. Species Cyclostoma moreletianum Petit de la Saussaye, 1850 (unaccepted, original combination)
  500. Species Cyclostoma moribundum C. B. Adams, 1849 (unaccepted > superseded combination)
  501. Species Cyclostoma moricandi L. Pfeiffer, 1852 (unaccepted, original combination)
  502. Species Cyclostoma moulinsii Grateloup, 1840 (unaccepted, original combination)
  503. Species Cyclostoma moussonianum C. B. Adams, 1851 (unaccepted, original combination)
  504. Species Cyclostoma mucronatum G. B. Sowerby I, 1843 (unaccepted, original combination)
  505. Species Cyclostoma multifasciata Grateloup, 1840 (unaccepted)
  506. Species Cyclostoma multilabris Lamarck, 1839 (unaccepted > superseded combination, basionym)
  507. Species Cyclostoma multiliratum L. Pfeiffer, 1854 (unaccepted, original combination)
  508. Species Cyclostoma multisulcatum Potiez & Michaud, 1838 (unaccepted, original combination)
  509. Species Cyclostoma mumia Lamarck, 1804 † (unaccepted > superseded combination)
  510. Species Cyclostoma musiva A. Gould, 1859 (unaccepted > superseded combination)
  511. Species Cyclostoma mutatum C. B. Adams, 1851 (unaccepted, junior synonym)
  512. Species Cyclostoma muticum C. B. Adams, 1849 (unaccepted, original combination)
  513. Species Cyclostoma myersii Haines, 1855 (unaccepted, original combination)
  514. Species Cyclostoma myrtinum Mabille, 1886 (unaccepted)
  515. Species Cyclostoma naticoides Récluz, 1843 (unaccepted, original combination)
  516. Species Cyclostoma neglectum L. Pfeiffer, 1858 (unaccepted > superseded combination)
  517. Species Cyclostoma newcombianum C. B. Adams, 1849 (unaccepted, junior synonym)
  518. Species Cyclostoma nigriculum L. Pfeiffer & Gundlach, 1860 (unaccepted, original combination)
  519. Species Cyclostoma nigrum Gray, 1850 (unaccepted)
  520. Species Cyclostoma nilagiricum W. H. Benson, 1852 (unaccepted, original combination)
  521. Species Cyclostoma nitens C. B. Adams, 1849 (unaccepted)
  522. Species Cyclostoma nitidum G. B. Sowerby I, 1842 (unaccepted > superseded combination)
  523. Species Cyclostoma niveum Petit de la Saussaye, 1850 (unaccepted, original combination)
  524. Species Cyclostoma nobile (L. Pfeiffer, 1852) (unaccepted)
  525. Species Cyclostoma nobilitatum Poey, 1858 (unaccepted > superseded combination)
  526. Species Cyclostoma nodulatum Poey, 1851 (unaccepted > superseded combination)
  527. Species Cyclostoma nodulosum C. B. Adams, 1850 (unaccepted, junior synonym)
  528. Species Cyclostoma novaehiberniae Quoy & Gaimard, 1832 (unaccepted, original combination)
  529. Species Cyclostoma obligatum A. Gould, 1847 (unaccepted, original combination)
  530. Species Cyclostoma obscurum Draparnaud, 1805 (unaccepted, original combination)
  531. Species Cyclostoma obscurum G. B. Sowerby I, 1843 (unaccepted, invalid: junior homonym of Cyclostoma obscurum Draparnaud, 1805)
  532. Species Cyclostoma obsoleta Lamarck, 1822 (unaccepted > junior subjective synonym)
  533. Species Cyclostoma obtusum Draparnaud, 1801 (unaccepted, a junior synonym)
  534. Species Cyclostoma occlusum Mörch, 1852 (unaccepted, original combination)
  535. Species Cyclostoma oceanica Hombron & Jacquinot, 1848 (unaccepted > incorrect grammatical agreement of specific epithet, incorrect original spelling)
  536. Species Cyclostoma ochraceum Melvill & Ponsonby, 1896 (unaccepted > superseded combination)
  537. Species Cyclostoma oculuscapri Reeve, 1842 (unaccepted > junior subjective synonym, )
  538. Species Cyclostoma olivieri Charpentier, 1847 (unaccepted, junior synonym)
  539. Species Cyclostoma opalinum Mousson, 1849 (unaccepted > junior subjective synonym, original name)
  540. Species Cyclostoma orbella Lamarck, 1822 (unaccepted, basionym)
  541. Species Cyclostoma orbiculatum W. H. Benson, 1853 (unaccepted > superseded combination, original combination)
  542. Species Cyclostoma orbignyi L. Pfeiffer, 1853 (unaccepted > superseded combination)
  543. Species Cyclostoma orophilum W. H. Benson, 1853 (unaccepted, original combination)
  544. Species Cyclostoma ortix Eydoux, 1838 (unaccepted, junior synonym)
  545. Species Cyclostoma ottone L. Pfeiffer, 1846 (unaccepted > superseded combination)
  546. Species Cyclostoma ottonis L. Pfeiffer, 1846 (unaccepted > incorrect grammatical agreement of specific epithet)
  547. Species Cyclostoma ovatum L. Pfeiffer, 1853 (unaccepted)
  548. Species Cyclostoma oxytremum L. Pfeiffer & Gundlach, 1860 (unaccepted > superseded combination, basionym)
  549. Species Cyclostoma pallescens C. B. Adams, 1851 (unaccepted, original combination)
  550. Species Cyclostoma panayense G. B. Sowerby I, 1843 (unaccepted, original combination)
  551. Species Cyclostoma papyraceum C. B. Adams, 1850 (unaccepted, original combination)
  552. Species Cyclostoma parvulum Deshayes, 1863 † (unaccepted > superseded combination)
  553. Species Cyclostoma parvum Pease, 1865 (unaccepted, original combination)
  554. Species Cyclostoma parvum G. B. Sowerby I, 1843 (unaccepted, original combination)
  555. Species Cyclostoma patera L. Pfeiffer, 1854 (unaccepted, original combination)
  556. Species Cyclostoma patulum Draparnaud, 1801 (unaccepted, original combination)
  557. Species Cyclostoma paulucciae Crosse & P. Fischer, 1882 (unaccepted > junior subjective synonym)
  558. Species Cyclostoma pauperatum C. B. Adams, 1849 (unaccepted, original combination)
  559. Species Cyclostoma pauperculum G. B. Sowerby I, 1850 (unaccepted > junior subjective synonym, original combination)
  560. Species Cyclostoma pearmanaeanum Chitty, 1853 (unaccepted, original combination)
  561. Species Cyclostoma pearsoni W. H. Benson, 1851 (unaccepted, original combination)
  562. Species Cyclostoma pellucida Grateloup, 1840 (unaccepted, typographic error on page 454 for "perlucidum"; not an available name)
  563. Species Cyclostoma pellucida Hombron & Jacquinot, 1848 (unaccepted, original combination; incorrect gender of species name)
  564. Species Cyclostoma perdix Broderip & G. B. Sowerby I, 1830 (unaccepted, original combination)
  565. Species Cyclostoma perlatum Gundlach, 1857 (unaccepted > superseded combination)
  566. Species Cyclostoma perlucida Grateloup, 1840 (unaccepted, original combination)
  567. Species Cyclostoma pernobilis A. Gould, 1843 (unaccepted, superseded combination)
  568. Species Cyclostoma perpallidum C. B. Adams, 1851 (unaccepted, original combination)
  569. Species Cyclostoma perplexum G. B. Sowerby I, 1843 (unaccepted, original combination)
  570. Species Cyclostoma perplicatum L. Pfeiffer, 1857 (unaccepted > superseded combination)
  571. Species Cyclostoma perspectivum L. Pfeiffer, 1859 (unaccepted > superseded combination)
  572. Species Cyclostoma pertusum Morelet, 1861 (unaccepted, original combination)
  573. Species Cyclostoma petitianum L. Pfeiffer, 1850 (unaccepted, original combination)
  574. Species Cyclostoma petricosum Morelet, 1851 (unaccepted > superseded combination)
  575. Species Cyclostoma pfeifferianum Poey, 1854 (unaccepted > superseded combination)
  576. Species Cyclostoma phaenotopicum W. H. Benson, 1851 (unaccepted > superseded combination)
  577. Species Cyclostoma philippinarum G. B. Sowerby I, 1842 (unaccepted, original combination)
  578. Species Cyclostoma physetum Bourguignat, 1875 † (unaccepted > junior subjective synonym)
  579. Species Cyclostoma pictum G. B. Sowerby I, 1843 (unaccepted, junior homonym of Cyclostoma pictum L. Pfeiffer, 1839)
  580. Species Cyclostoma pictum L. Pfeiffer, 1839 (unaccepted > superseded combination)
  581. Species Cyclostoma pileus G. B. Sowerby I, 1843 (unaccepted, use in recent liteature currently undocumented)
  582. Species Cyclostoma pisum C. B. Adams, 1849 (unaccepted, original combination)
  583. Species Cyclostoma planatum Du Bois de Montpéreux, 1831 † (unaccepted > superseded combination)
  584. Species Cyclostoma planorbula Lamarck, 1816 (unaccepted, junior homonym of Cyclostoma planorbula Lamarck, 1804; incorrect gender of species name)
  585. Species Cyclostoma plebeium G. B. Sowerby I, 1843 (unaccepted, original combination)
  586. Species Cyclostoma plicatulum L. Pfeiffer, 1846 (unaccepted, original combination)
  587. Species Cyclostoma plicatum A. Gould, 1847 (unaccepted, original combination)
  588. Species Cyclostoma plicosum L. Pfeiffer, 1854 (unaccepted, original combination)
  589. Species Cyclostoma poeyana A. d'Orbigny, 1842 (unaccepted > superseded combination)
  590. Species Cyclostoma politum G. B. Sowerby I, 1843 (unaccepted, original combination)
  591. Species Cyclostoma pollex A. Gould, 1856 (unaccepted, junior subjective synonym)
  592. Species Cyclostoma ponderosum L. Pfeiffer, 1853 (unaccepted > superseded combination)
  593. Species Cyclostoma popayana I. Lea, 1838 (unaccepted > superseded combination)
  594. Species Cyclostoma porphyriticum W. H. Benson, 1851 (unaccepted, junior synonym)
  595. Species Cyclostoma praecurrens De Stefani, 1880 † (unaccepted > superseded combination)
  596. Species Cyclostoma pretrei A. d'Orbigny, 1842 (unaccepted > superseded combination)
  597. Species Cyclostoma principalis L. Pfeiffer, 1859 (unaccepted, original combination)
  598. Species Cyclostoma procax Poey, 1851 (unaccepted, original combination)
  599. Species Cyclostoma prominula A. d'Orbigny, 1838 (unaccepted, original combination)
  600. Species Cyclostoma proximum C. B. Adams, 1849 (unaccepted, original combination)
  601. Species Cyclostoma psilomitum L. Pfeiffer, 1853 (unaccepted > superseded combination)
  602. Species Cyclostoma pterostomum Poey, 1861 (unaccepted > nomen nudum)
  603. Species Cyclostoma pudica A. d'Orbigny, 1842 (unaccepted > superseded combination)
  604. Species Cyclostoma pulchellum G. B. Sowerby I, 1843 (unaccepted, original combination)
  605. Species Cyclostoma pulchra Gray, 1833 (unaccepted, incorrect grammatical agreement of specific epithet)
  606. Species Cyclostoma pulchrius C. B. Adams, 1845 (unaccepted > superseded combination)
  607. Species Cyclostoma pulchrum J. E. Gray, 1833 (unaccepted, original combination)
  608. Species Cyclostoma pulchrum J. E. Gray, 1933 (unaccepted, original combination)
  609. Species Cyclostoma pulverulentum L. Pfeiffer, 1854 (unaccepted > junior subjective synonym)
  610. Species Cyclostoma punctata Grateloup, 1840 (unaccepted, original combination)
  611. Species Cyclostoma pupa M. Braun, 1838 † (unaccepted > superseded combination)
  612. Species Cyclostoma pupiforme G. B. Sowerby I, 1843 (unaccepted, original combination)
  613. Species Cyclostoma pupiniforme G. B. Sowerby I, 1842 (unaccepted, original combination)
  614. Species Cyclostoma pupoides Morelet, 1849 (unaccepted, original combination)
  615. Species Cyclostoma pupoides (Anton, 1838) (unaccepted > superseded combination)
  616. Species Cyclostoma purum Forbes, 1850 (unaccepted, original combination)
  617. Species Cyclostoma pusillum G. B. Sowerby I, 1843 (unaccepted, original combination)
  618. Species Cyclostoma pyrostoma G. B. Sowerby I, 1842 (unaccepted > superseded combination)
  619. Species Cyclostoma quadrifilosum W. H. Benson, 1852 (unaccepted, basionym)
  620. Species Cyclostoma quaternata Lamarck, 1822 (unaccepted > superseded combination)
  621. Species Cyclostoma quinquefasciatum C. B. Adams, 1849 (unaccepted, junior synonym)
  622. Species Cyclostoma radiolatum E. von Martens, 1881 (unaccepted, original combination)
  623. Species Cyclostoma radiosum Morelet, 1849 (unaccepted, junior synonym)
  624. Species Cyclostoma rafflesii Broderip & G. B. Sowerby I, 1830 (unaccepted, original combination)
  625. Species Cyclostoma rangelinum Poey, 1851 (unaccepted > superseded combination)
  626. Species Cyclostoma rangii A. Férussac, 1827 (unaccepted, original combination)
  627. Species Cyclostoma ravidum W. H. Benson, 1851 (unaccepted, original combination)
  628. Species Cyclostoma redfieldianum C. B. Adams, 1849 (unaccepted, original combination)
  629. Species Cyclostoma rete Weinland, 1862 (unaccepted, original combination)
  630. Species Cyclostoma reticulatum A. Adams & Reeve, 1850 (unaccepted > superseded combination)
  631. Species Cyclostoma reticulatum W. H. Baily, 1858 † (unaccepted > superseded combination)
  632. Species Cyclostoma retrorsum C. B. Adams, 1850 (unaccepted, original combination)
  633. Species Cyclostoma revinctum Poey, 1851 (unaccepted, original combination)
  634. Species Cyclostoma revocatum L. Pfeiffer, 1857 (unaccepted > superseded combination, basionym)
  635. Species Cyclostoma rhinoceronthophylum Sacco, 1886 † (unaccepted > superseded combination)
  636. Species Cyclostoma rigidulum Morelet, 1851 (unaccepted > superseded combination)
  637. Species Cyclostoma rivulare Eichwald, 1829 (unaccepted)
  638. Species Cyclostoma rollei Weinland, 1862 (unaccepted, original combination)
  639. Species Cyclostoma roseum A. Gould, 1847 (unaccepted, original combination)
  640. Species Cyclostoma rostellatum L. Pfeiffer, 1851 (unaccepted, invalid: junior homonym of Cyclostoma rostellatum Partiot, 1848; Opisthoporus singaporeanus is a replacement name)
  641. Species Cyclostoma rotundatum Poey, 1854 (unaccepted, invalid; not Du Bois de Montpéreux, 1831)
  642. Species Cyclostoma rotundatum Du Bois de Montpéreux, 1831 † (unaccepted > superseded combination)
  643. Species Cyclostoma rubens Quoy & Gaimard, 1832 (unaccepted, original combination)
  644. Species Cyclostoma rubeschi Reuss, 1849 † (unaccepted > superseded combination)
  645. Species Cyclostoma rubicundum Morelet, 1849 (unaccepted, original combination)
  646. Species Cyclostoma rufescens G. B. Sowerby I, 1843 (unaccepted, original combination)
  647. Species Cyclostoma rufilabrum G. B. Sowerby I, 1843 (unaccepted, objective junior synonym and homonym)
  648. Species Cyclostoma rufilabrum Potiez & Michaud, 1838 (unaccepted, original combination)
  649. Species Cyclostoma rufopictum L. Pfeiffer & Gundlach, 1860 (unaccepted > superseded combination)
  650. Species Cyclostoma rugulosum L. Pfeiffer, 1839 (unaccepted > superseded combination)
  651. Species Cyclostoma sagebieni Poey, 1858 (unaccepted > superseded combination)
  652. Species Cyclostoma sagittiferum C. B. Adams, 1851 (unaccepted, original combination)
  653. Species Cyclostoma sagra A. d'Orbigny, 1842 (unaccepted > superseded combination)
  654. Species Cyclostoma salebrosum Morelet, 1849 (unaccepted > superseded combination)
  655. Species Cyclostoma salleanum L. Pfeiffer, 1850 (unaccepted, original combination)
  656. Species Cyclostoma santacruzensis L. Pfeiffer, 1855 (unaccepted, original combination)
  657. Species Cyclostoma sarcodes L. Pfeiffer, 1857 (unaccepted > superseded combination)
  658. Species Cyclostoma sarritum W. H. Benson, 1851 (unaccepted, original combination)
  659. Species Cyclostoma sauliae G. B. Sowerby I, 1843 (unaccepted)
  660. Species Cyclostoma saxorum Weinland, 1862 (unaccepted, original combination)
  661. Species Cyclostoma scabriculum G. B. Sowerby I, 1843 (unaccepted, original combination)
  662. Species Cyclostoma scalare (L. Pfeiffer, 1852) (unaccepted > superseded combination)
  663. Species Cyclostoma scalare Du Bois de Montpéreux, 1831 † (unaccepted > superseded combination)
  664. Species Cyclostoma schafarziki Gaál, 1910 † (unaccepted > superseded combination)
  665. Species Cyclostoma schrammeni Andreae, 1902 † (unaccepted > superseded combination)
  666. Species Cyclostoma scitulum A. Gould, 1847 (unaccepted, original combination)
  667. Species Cyclostoma sculptum L. Pfeiffer, 1857 (unaccepted > superseded combination, basionym)
  668. Species Cyclostoma sectilabrum A. Gould, 1843 (unaccepted, original combination)
  669. Species Cyclostoma semicanum Morelet, 1851 (unaccepted, original combination)
  670. Species Cyclostoma semicoronatum L. Pfeiffer & Gundlach, 1860 (unaccepted > superseded combination, basionym)
  671. Species Cyclostoma semidecussatum L. Pfeiffer, 1847 (unaccepted > superseded combination)
  672. Species Cyclostoma semilabris Lamarck, 1822 (unaccepted, original combination)
  673. Species Cyclostoma semiliratum Morelet, 1881 (unaccepted, original combination)
  674. Species Cyclostoma seminudum C. B. Adams, 1851 (unaccepted, original combination)
  675. Species Cyclostoma semistriatum G. B. Sowerby I, 1843 (unaccepted, original combination)
  676. Species Cyclostoma semisulcatum G. B. Sowerby I, 1843 (unaccepted, original combination)
  677. Species Cyclostoma sepultum Rambur, 1862 † (unaccepted > superseded combination)
  678. Species Cyclostoma sericatum Morelet, 1851 (unaccepted > junior subjective synonym)
  679. Species Cyclostoma sericatum (L. Pfeiffer, 1852) (unaccepted)
  680. Species Cyclostoma sericinum C. B. Adams, 1851 (unaccepted, original combination)
  681. Species Cyclostoma serraticosta Weinland, 1862 (unaccepted)
  682. Species Cyclostoma serriana Matheron, 1843 † (unaccepted, subjective synonym)
  683. Species Cyclostoma serriferum C. B. Adams, 1849 (unaccepted, junior synonym)
  684. Species Cyclostoma shepardianum C. B. Adams, 1850 (unaccepted, original combination)
  685. Species Cyclostoma shuttleworthi L. Pfeiffer, 1853 (unaccepted > superseded combination)
  686. Species Cyclostoma siamense G. B. Sowerby I, 1850 (unaccepted, original combination)
  687. Species Cyclostoma sikorae Fulton, 1901 (unaccepted, original combination)
  688. Species Cyclostoma simile Draparnaud, 1805 (unaccepted, original combination)
  689. Species Cyclostoma simile G. B. Sowerby I, 1843 (unaccepted > junior homonym, non Draparnaud, 1805)
  690. Species Cyclostoma simulacrum Morelet, 1849 (unaccepted, original combination)
  691. Species Cyclostoma simulans C. B. Adams, 1851 (unaccepted, original combination)
  692. Species Cyclostoma solarium Matheron, 1843 † (unaccepted > superseded combination)
  693. Species Cyclostoma solenatum Poey, 1851 (unaccepted > junior subjective synonym, basionym)
  694. Species Cyclostoma solidulum L. Pfeiffer & Gundlach, 1860 (unaccepted > superseded combination, basionym)
  695. Species Cyclostoma solidum C. B. Adams, 1849 (unaccepted, junior homonym of Cyclostoma solidum Menke, 1830; C. jayanum is nom. nov.)
  696. Species Cyclostoma sordidum Gundlach, 1856 (unaccepted > junior homonym, invalid; not L. Pfeiffer, 1855, Annularia spurca is a replacement name)
  697. Species Cyclostoma souleyetianum Petit de la Saussaye, 1850 (unaccepted, original combination)
  698. Species Cyclostoma sowerbyi L. Pfeiffer, 1847 (unaccepted, original combination)
  699. Species Cyclostoma sparnacense Deshayes, 1863 † (unaccepted > superseded combination)
  700. Species Cyclostoma speciosum R. A. Philippi, 1847 (unaccepted > incorrect grammatical agreement of specific epithet)
  701. Species Cyclostoma spiniferum Morelet, 1861 (unaccepted > junior subjective synonym)
  702. Species Cyclostoma spinulosum C. B. Adams, 1849 (unaccepted, original combination)
  703. Species Cyclostoma spiracellum A. Adams & Reeve, 1850 (unaccepted > superseded combination)
  704. Species Cyclostoma spurca Grateloup, 1840 (unaccepted, original combination; incorrect gender of species name)
  705. Species Cyclostoma spurcum Grateloup, 1840 (unaccepted, original combination)
  706. Species Cyclostoma spurcum G. B. Sowerby I, 1843 (unaccepted > superseded combination, invalid: junior homonym of Grateloup, 1840; Cyclostoma conoideum is a replacement name)
  707. Species Cyclostoma squamosum Peyrot, 1933 † (unaccepted > junior subjective synonym)
  708. Species Cyclostoma stenomphalum L. Pfeiffer, 1846 (unaccepted > superseded combination)
  709. Species Cyclostoma stenostoma G. B. Sowerby I, 1843 (unaccepted)
  710. Species Cyclostoma stramineum G. B. Sowerby I, 1843 (unaccepted > superseded combination)
  711. Species Cyclostoma strangulatum L. Pfeiffer, 1846 (unaccepted, original combination)
  712. Species Cyclostoma strigatum A. Gould, 1847 (unaccepted, original combination)
  713. Species Cyclostoma striolatum (Porro, 1840) (unaccepted, chresonym)
  714. Species Cyclostoma subcampanulatum Mabille, 1886 (unaccepted)
  715. Species Cyclostoma subcarinata Michelotti, 1840 † (unaccepted > superseded combination)
  716. Species Cyclostoma subdiscoideum G. B. Sowerby I, 1850 (unaccepted, original combination)
  717. Species Cyclostoma subelegans Bourguignat, 1869 † (unaccepted > junior subjective synonym)
  718. Species Cyclostoma subinfundibulum J. Martin, 1866 † (unaccepted, subjective synonym)
  719. Species Cyclostoma subpyrenaicum Noulet, 1854 † (unaccepted > superseded combination)
  720. Species Cyclostoma subrugosum G. B. Sowerby I, 1850 (unaccepted, original combination)
  721. Species Cyclostoma substriatum G. B. Sowerby I, 1843 (unaccepted, unaccepted combination)
  722. Species Cyclostoma succineum G. B. Sowerby I, 1832 (unaccepted > superseded combination)
  723. Species Cyclostoma sulcata Draparnaud, 1805 (unaccepted, incorrect grammatical agreement of specific epithet)
  724. Species Cyclostoma sulcata Lamarck, 1822 (unaccepted > incorrect grammatical agreement of specific epithet)
  725. Species Cyclostoma sulcatum Draparnaud, 1805 (unaccepted, original combination)
  726. Species Cyclostoma sulcatum Lamarck, 1822 (unaccepted > junior homonym)
  727. Species Cyclostoma sulculatum Paladilhe, 1873 † (unaccepted > superseded combination)
  728. Species Cyclostoma suturale G. B. Sowerby I, 1843 (unaccepted, original combination)
  729. Species Cyclostoma szadeczkyi Gaál, 1910 † (unaccepted > superseded combination)
  730. Species Cyclostoma tahitensis Pease, 1861 (unaccepted, original combination)
  731. Species Cyclostoma tamsianum L. Pfeiffer, 1850 (unaccepted > junior subjective synonym)
  732. Species Cyclostoma tappanianum C. B. Adams, 1851 (unaccepted > superseded combination, basionym)
  733. Species Cyclostoma taylorianum L. Pfeiffer, 1851 (unaccepted, junior synonym)
  734. Species Cyclostoma tectilabre C. B. Adams, 1849 (unaccepted, original combination)
  735. Species Cyclostoma tenebricosum A. Adams & Reeve, 1848 (unaccepted > superseded combination)
  736. Species Cyclostoma tenebrosum Morelet, 1849 (unaccepted > superseded combination)
  737. Species Cyclostoma tentorium L. Pfeiffer, 1850 (unaccepted, original combination)
  738. Species Cyclostoma tenue G. B. Sowerby I, 1843 (unaccepted, original combination)
  739. Species Cyclostoma tenuilabiatum Metcalfe, 1852 (unaccepted, original combination)
  740. Species Cyclostoma tenuistriatum C. B. Adams, 1849 (unaccepted, original combination)
  741. Species Cyclostoma terebrale A. Gould, 1847 (unaccepted, original combination)
  742. Species Cyclostoma tersum W. H. Benson, 1853 (unaccepted, original combination)
  743. Species Cyclostoma tessellatum Rossmässler, 1837 (unaccepted, original combination)
  744. Species Cyclostoma textum L. Pfeiffer, 1858 (unaccepted > superseded combination, basionym)
  745. Species Cyclostoma texturatum G. B. Sowerby I, 1850 (unaccepted, original combination)
  746. Species Cyclostoma thersites Shuttleworth, 1852 (unaccepted > superseded combination)
  747. Species Cyclostoma thoreyanum R. A. Philippi, 1851 (unaccepted > superseded combination, basionym)
  748. Species Cyclostoma thysanorhaphe G. B. Sowerby I, 1843 (unaccepted, original combination)
  749. Species Cyclostoma tiara A. Gould, 1847 (unaccepted, original combination)
  750. Species Cyclostoma tigrinum G. B. Sowerby I, 1843 (unaccepted, original combination)
  751. Species Cyclostoma torquatum Poey, 1858 (unaccepted > superseded combination)
  752. Species Cyclostoma tourannensis Souleyet, 1852 (unaccepted)
  753. Species Cyclostoma tractum Poey, 1858 (unaccepted > superseded combination)
  754. Species Cyclostoma translucidum G. B. Sowerby I, 1843 (unaccepted, original combination)
  755. Species Cyclostoma transvaalense Melvill & Ponsonby, 1891 (unaccepted > superseded combination)
  756. Species Cyclostoma tricarinata Say, 1817 (unaccepted, original combination)
  757. Species Cyclostoma triexaratum J. Martin, 1866 † (unaccepted > superseded combination)
  758. Species Cyclostoma trissostropis Morelet, 1882 (unaccepted, possible junior synonym)
  759. Species Cyclostoma trochlea W. H. Benson, 1851 (unaccepted > superseded combination, original combination)
  760. Species Cyclostoma troscheli L. Pfeiffer, 1850 (unaccepted, junior synonym)
  761. Species Cyclostoma truncatulum Draparnaud, 1801 (unaccepted, synonym)
  762. Species Cyclostoma truncatum L. Pfeiffer, 1849 (unaccepted, invalid; unnecessary replacement name )
  763. Species Cyclostoma tuba G. B. Sowerby I, 1842 (unaccepted, original combination)
  764. Species Cyclostoma tubulare Morelet, 1861 (unaccepted > superseded combination)
  765. Species Cyclostoma tubulum Reeve, 1857 (unaccepted)
  766. Species Cyclostoma turbinatum L. Pfeiffer, 1846 (unaccepted)
  767. Species Cyclostoma turgidum "L. Pfeiffer, 1851" (unaccepted, nomen nudum; in error for Cyclophorus turgidus L. Pfeiffer, 1852)
  768. Species Cyclostoma turriculatum R. A. Philippi, 1836 (unaccepted > superseded combination)
  769. Species Cyclostoma turritellatum Lamarck, 1804 † (unaccepted > superseded combination)
  770. Species Cyclostoma turritum L. Pfeiffer, 1853 (unaccepted > superseded combination)
  771. Species Cyclostoma umbricola Weinland, 1862 (unaccepted, original combination)
  772. Species Cyclostoma undatum Metcalfe, 1852 (unaccepted, original combination)
  773. Species Cyclostoma unicarinata Lamarck, 1822 (unaccepted > superseded combination)
  774. Species Cyclostoma unifasciatum G. B. Sowerby I, 1825 (unaccepted)
  775. Species Cyclostoma vacoense Morelet, 1882 (unaccepted > junior subjective synonym)
  776. Species Cyclostoma validum G. B. Sowerby I, 1842 (unaccepted > superseded combination)
  777. Species Cyclostoma vallatum A. Gould, 1847 (unaccepted, original combination)
  778. Species Cyclostoma vannostrandi Arango, 1876 (unaccepted, original combination)
  779. Species Cyclostoma variabile C. B. Adams, 1849 (unaccepted, original combination)
  780. Species Cyclostoma varians C. B. Adams, 1851 (unaccepted, original combination)
  781. Species Cyclostoma vasconense Noulet, 1854 † (unaccepted > superseded combination)
  782. Species Cyclostoma ventricosa A. d'Orbigny, 1842 (unaccepted > superseded combination)
  783. Species Cyclostoma ventricosum Hombron & Jacquinot, 1848 (unaccepted, original combination)
  784. Species Cyclostoma verecundum Poey, 1851 (unaccepted > junior subjective synonym)
  785. Species Cyclostoma versicolor L. Pfeiffer, 1846 (unaccepted, unaccepted combination)
  786. Species Cyclostoma verticillatum Morelet, 1882 (unaccepted > junior subjective synonym)
  787. Species Cyclostoma vesconis Morelet, 1860 (unaccepted > superseded combination)
  788. Species Cyclostoma vespertinum Morelet, 1851 (unaccepted > superseded combination)
  789. Species Cyclostoma vexillum G. B. Sowerby III, 1873 (unaccepted, original combination)
  790. Species Cyclostoma vieillardi Gassies, 1870 (unaccepted, junior synonym)
  791. Species Cyclostoma violaceum (L. Pfeiffer, 1852) (unaccepted > superseded combination)
  792. Species Cyclostoma virgatum G. B. Sowerby I, 1843 (unaccepted, original combination)
  793. Species Cyclostoma virgineum C. B. Adams, 1850 (unaccepted, original combination; junior synonym)
  794. Species Cyclostoma virgo L. Pfeiffer, 1854 (unaccepted)
  795. Species Cyclostoma viridescens Pease, 1861 (unaccepted, original combination)
  796. Species Cyclostoma vitellinum (L. Pfeiffer, 1852) (unaccepted > superseded combination)
  797. Species Cyclostoma vitreum Quoy & Gaimard, 1832 (unaccepted, Invalid: junior homonym of Cyclostoma vitreum Draparnaud, 1801; considered as a distinct species in the Solomon Islands by Delsaerdt (2016))
  798. Species Cyclostoma vitreum R. P. Lesson, 1831 (unaccepted, Invalid: junior homonym of Cyclostoma vitreum Draparnaud, 1801)
  799. Species Cyclostoma vitreum Draparnaud, 1801 (unaccepted, original combination)
  800. Species Cyclostoma vittattum G. B. Sowerby I, 1842 (unaccepted, original combination)
  801. Species Cyclostoma volvuloides G. B. Sowerby I, 1850 (unaccepted > junior subjective synonym)
  802. Species Cyclostoma vortex Weinland, 1862 (unaccepted, original combination)
  803. Species Cyclostoma wahlbergi W. H. Benson, 1852 (unaccepted, original combination)
  804. Species Cyclostoma wallacei L. Pfeiffer, 1857 (unaccepted, original combination)
  805. Species Cyclostoma wilkinsonii C. B. Adams, 1849 (unaccepted, original combination)
  806. Species Cyclostoma woltzianum Terver, 1839 (unaccepted > unavailable name, incorrect subsequent spelling)
  807. Species Cyclostoma woodiana I. Lea, 1862 (unaccepted, original combination)
  808. Species Cyclostoma xanthocheilus G. B. Sowerby I, 1850 (unaccepted, original combination)
  809. Species Cyclostoma xanthostoma G. B. Sowerby I, 1843 (unaccepted, original combination)
  810. Species Cyclostoma yallahense C. B. Adams, 1851 (unaccepted, original combination)
  811. Species Cyclostoma yaterasense L. Pfeiffer, 1859 (unaccepted > superseded combination)
  812. Species Cyclostoma zanguebaricum Petit de la Saussaye, 1850 (unaccepted, original combination)
  813. Species Cyclostoma zebra Grateloup, 1840 (unaccepted, original combination)
  814. Species Cyclostoma zebrinum W. H. Benson, 1836 (unaccepted, original combination)
  815. Species Cyclostoma zollingeri Mousson, 1849 (unaccepted, junior synonym)
  816. Species Cyclostoma zonatum Petit de la Saussaye, 1850 (unaccepted, original combination)
  817. Species Cyclostoma zonulatum G. B. Sowerby I, 1850 (unaccepted)
  818. Species Cyclostoma abeillei Grateloup, 1840 (uncertain > taxon inquirendum)
  819. Species Cyclostoma agglutinans Hombron & Jacquinot, 1848 (uncertain > unassessed)
  820. Species Cyclostoma annulatus L. Pfeiffer, 1849 (uncertain > unassessed)
  821. Species Cyclostoma arthurii Grateloup, 1840 (uncertain > taxon inquirendum)
  822. Species Cyclostoma bifasciatum G. B. Sowerby I, 1850 (uncertain > nomen dubium)
  823. Species Cyclostoma bilabiatum G. B. Sowerby I, 1843 (uncertain > taxon inquirendum, use in recent liteature currently undocumented; not d'Orbigny, 1842)
  824. Species Cyclostoma brazieri J. C. Cox, 1870 (uncertain > taxon inquirendum)
  825. Species Cyclostoma bulimoides Hombron & Jacquinot, 1848 (uncertain > unassessed, invalid; not Olivier, 1804)
  826. Species Cyclostoma burtoni Ancey, 1892 (uncertain > taxon inquirendum)
  827. Species Cyclostoma canescens L. Pfeiffer, 1853 (uncertain > taxon inquirendum)
  828. Species Cyclostoma carneum L. Pfeiffer, 1848 (uncertain > unassessed)
  829. Species Cyclostoma ceylanicum L. Pfeiffer, 1849 (uncertain > unassessed)
  830. Species Cyclostoma chloriticum L. Pfeiffer, 1854 (uncertain > taxon inquirendum)
  831. Species Cyclostoma chlorostoma G. B. Sowerby I, 1843 (uncertain > nomen dubium)
  832. Species Cyclostoma cinctum G. B. Sowerby I, 1843 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)
  833. Species Cyclostoma clathratulum G. B. Sowerby I, 1843 (uncertain > taxon inquirendum)
  834. Species Cyclostoma cognatum Mabille, 1886 (uncertain > taxon inquirendum, no documented use in recent literature)
  835. Species Cyclostoma coronatum Poey, 1858 (uncertain > unassessed)
  836. Species Cyclostoma costulatum Issel, 1865 (uncertain > taxon inquirendum)
  837. Species Cyclostoma cumanense L. Pfeiffer, 1853 (uncertain > taxon inquirendum)
  838. Species Cyclostoma cylindricum Anton, 1838 (uncertain > taxon inquirendum, status in recent literature not researched by editor)
  839. Species Cyclostoma diaphanum L. Pfeiffer, 1853 (uncertain > taxon inquirendum)
  840. Species Cyclostoma disculus L. Pfeiffer, 1853 (uncertain > taxon inquirendum)
  841. Species Cyclostoma euomplaum R. A. Philippi, 1851 (uncertain > unassessed)
  842. Species Cyclostoma exigua Hombron & Jacquinot, 1848 (uncertain > unassessed, invalid; not Cyclostoma exiguum G. B. Sowerby I, 1843)
  843. Species Cyclostoma fasciculare L. Pfeiffer, 1853 (uncertain > taxon inquirendum)
  844. Species Cyclostoma filostriatum G. B. Sowerby III, 1874 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)
  845. Species Cyclostoma filosum G. B. Sowerby I, 1839 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)
  846. Species Cyclostoma fragile Bosquet, 1859 † (uncertain > taxon inquirendum)
  847. Species Cyclostoma guayaquilense G. B. Sowerby I, 1850 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)
  848. Species Cyclostoma haemastomum Anton, 1838 (uncertain > taxon inquirendum, status in recent literature not researched by editor)
  849. Species Cyclostoma hanleyi L. Pfeiffer, 1847 (uncertain > unassessed)
  850. Species Cyclostoma harpa L. Pfeiffer, 1853 (uncertain > taxon inquirendum)
  851. Species Cyclostoma heliciformis Matheron, 1832 † (uncertain > taxon inquirendum)
  852. Species Cyclostoma inconspicuum G. B. Sowerby I, 1843 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)
  853. Species Cyclostoma integrum L. Pfeiffer, 1853 (uncertain > taxon inquirendum)
  854. Species Cyclostoma involvulus G. B. Sowerby I, 1843 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)
  855. Species Cyclostoma irroratum G. B. Sowerby I, 1843 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)
  856. Species Cyclostoma kusteri L. Pfeiffer, 1853 (uncertain > taxon inquirendum)
  857. Species Cyclostoma latum L. Pfeiffer, 1858 (uncertain > unassessed)
  858. Species Cyclostoma leonhardi Anton, 1838 (uncertain > taxon inquirendum, status in recent literature not researched by editor)
  859. Species Cyclostoma lineolatum Anton, 1838 (uncertain, invalid; not Lamarck, 1822)
  860. Species Cyclostoma lugubre L. Pfeiffer, 1853 (uncertain > taxon inquirendum)
  861. Species Cyclostoma lutea R. P. Lesson, 1831 (uncertain > unassessed)
  862. Species Cyclostoma maculatum I. Lea, 1838 (uncertain > taxon inquirendum, invalid; a junior homonym of Cyclostoma maculatum Draparnaud, 1805)
  863. Species Cyclostoma martinii Deshayes, 1853 (uncertain, status in recent literature not researched by editor)
  864. Species Cyclostoma melanostoma Hombron & Jacquinot, 1848 (uncertain > unassessed, invalid; not Petit de la Saussaye, 1841)
  865. Species Cyclostoma mitra Weinland, 1862 (uncertain > taxon inquirendum)
  866. Species Cyclostoma obesum G. B. Sowerby I, 1843 (uncertain > taxon inquirendum, use in recent liteature currently undocumented)
  867. Species Cyclostoma oceanicum Hombron & Jacquinot, 1848 (uncertain > unassessed)
  868. Species Cyclostoma omoium Mabille, 1886 (uncertain > taxon inquirendum, no documented use in recent literature)
  869. Species Cyclostoma pallidum L. Pfeiffer, 1853 (uncertain > taxon inquirendum)
  870. Species Cyclostoma papua Quoy & Gaimard, 1832 (uncertain > taxon inquirendum, status not researched)
  871. Species Cyclostoma permanaeanum Chitty, 1853 (uncertain > unassessed)
marine, brackish, fresh, terrestrial
neuter
Draparnaud, J. P. R. (1801). <i>Tableau des mollusques terrestres et fluviatiles de la France</i>. Montpellier / Paris (Renaud / Bossange, Masson & Besson). 1-116. , available online at https://www.biodiversitylibrary.org/page/28587765
page(s): 37 [details] 
MolluscaBase eds. (2021). MolluscaBase. Cyclostoma Draparnaud, 1801. Accessed at: http://www.molluscabase.org/aphia.php?p=taxdetails&id=863303 on 2025-03-30
Date
action
by
2015-11-13 02:48:14Z
created
Rosenberg, Gary
2017-06-19 12:44:39Z
changed
Bank, Ruud
2018-10-05 14:15:48Z
changed
Vinarski, Maxim
2019-05-02 05:17:31Z
changed
Köhler, Frank

Creative Commons License The webpage text is licensed under a Creative Commons Attribution 4.0 License


original description Draparnaud, J. P. R. (1801). <i>Tableau des mollusques terrestres et fluviatiles de la France</i>. Montpellier / Paris (Renaud / Bossange, Masson & Besson). 1-116. , available online at https://www.biodiversitylibrary.org/page/28587765
page(s): 37 [details] 

basis of record Westerlund, C. A. (1886). <i>Fauna der in der paläarctischen Region (...) lebenden Binnenconchylien</i>. I. Fam. Testacellidae, Glandinidae, Vitrinidae & Leucochroidae. – Lund: Håkan Ohlsson. 88 + 7 (Register) + 16 (Dritte Beilage [Nachträge und Berichtigungen zum Heft IV (I): pp. 1-6; Nachträge und Berichtigungen zum Heft V (II): pp. 6-15; Bemerkungen zum Heft I (III): p. 16]) pp. , available online at https://biodiversitylibrary.org/page/10893267
page(s): 8 [details] 
From editor or global species database
Editor's comment It is not clear whether Draparnaud intended to apply the name Cyclostoma Lamarck, 1799 to a group of French non-marine molluscs, or whether he intended to establish a new genus, which would then be a junior homonym of Cyclostoma Lamarck, 1799. The latter opinion has mostly been followed in the literature and is accepted here. [details]
From editor or global species database
Pomatias elegans
Pomatias elegans
Image from typetaxon
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