MolluscaBase - browser

Mollusca (133 259)
Subphylum Aculifera
Subphylum Conchifera
Subphylum Placophora accepted as Polyplacophora
Superclass Aplacophora
Class Amphineura accepted as Aculifera
Class Bivalvia (25 079)
Class Caudofoveata (143)
Class Cephalopoda (1 917)
Class Conchifera accepted as Bivalvia
Class Cricoconarida † (1)
Class Gastropoda (103 007)
Subclass Amphigastropoda † (434)
Subclass Angiogastropoda represented as Gastropoda
Subclass Apogastropoda
Subclass Caenogastropoda (53 817)
Subterclass Sorbeoconcha (147)
Superorder Hypsogastropoda
Order Architaenioglossa (4 921)
Order Caenogastropoda incertae sedis (7 691)
Order Littorinimorpha (17 230)
Superfamily Calyptraeoidea Lamarck, 1809 (203)
Superfamily Capuloidea J. Fleming, 1822 (219)
Superfamily Cassoidea accepted as Tonnoidea Suter, 1913 (1825)
Superfamily Cingulopsoidea Fretter & Patil, 1958 (193)
Superfamily Crepiduloidea J. Fleming, 1822 accepted as Calyptraeoidea Lamarck, 1809
Superfamily Cypraeoidea Rafinesque, 1815 (1 299)
Superfamily Eulimoidea R. A. Philippi, 1853 accepted as Vanikoroidea Gray, 1840
Superfamily Ficoidea Meek, 1864 (1840) (71)
Superfamily Heteropoda Lamarck, 1812 accepted as Pterotracheoidea Rafinesque, 1814
Superfamily Hipponicoidea Troschel, 1861 (99)
Superfamily Littorinoidea Children, 1834 (1 372)
Superfamily Naticoidea Guilding, 1834 (689)
Superfamily Pterotracheoidea Rafinesque, 1814 (63)
Superfamily Rissoacea accepted as Rissooidea Gray, 1847
Superfamily Rissoinoidea W. Stimpson, 1865 accepted as Rissooidea Gray, 1847
Superfamily Rissooidea Gray, 1847 (2 311)
Superfamily Stromboidea Rafinesque, 1815 (839)
Superfamily Tonnoidea Suter, 1913 (1825) (788)
Superfamily Truncatelloidea J. E. Gray, 1840 (6 933)
Family Adeorbidae Monterosato, 1884 accepted as Tornidae Sacco, 1896 (1884)
Family Amnicolidae Tryon, 1863 (132)
Family Anabathridae Keen, 1971 (152)
Family Ascorhiidae Ponder, Nimbs & Shea, 2023 (2)
Family Assimineidae H. Adams & A. Adams, 1856 (428)
Family Baicaliidae P. Fischer, 1885 (59)
Family Beddomeiidae Ponder, Nimbs & Shea, 2023 (58)
Family Benedictiidae Clessin, 1880 accepted as Benedictiinae Clessin, 1880
Family Bithyniidae J. E. Gray, 1857 (367)
Family Bythinellidae Locard, 1893 (213)
Family Caecidae J. E. Gray, 1850 (287)
Subfamily Caecinae J. E. Gray, 1850 (247)
Genus Caecum J. Fleming, 1813 (234)
Subgenus Caecum (Anellum) P. P. Carpenter, 1857 represented as Caecum J. Fleming, 1813
Subgenus Caecum (Bambusum) Olsson & Harbison, 1954 represented as Caecum J. Fleming, 1813
Subgenus Caecum (Brochina) J. E. Gray, 1857 represented as Caecum J. Fleming, 1813
Subgenus Caecum (Caecum) J. Fleming, 1813 represented as Caecum J. Fleming, 1813
Subgenus Caecum (Defolinia) Weisbord, 1962 accepted as Caecum J. Fleming, 1813
Subgenus Caecum (Elephantulum) P. P. Carpenter, 1857 represented as Caecum J. Fleming, 1813
Subgenus Caecum (Fartulum) P. P. Carpenter, 1857 represented as Caecum J. Fleming, 1813
Subgenus Caecum (Meioceras) P. P. Carpenter, 1859 accepted as Meioceras P. P. Carpenter, 1859
Subgenus Caecum (Micranellum) Bartsch, 1920 accepted as Caecum J. Fleming, 1813
Subgenus Caecum (Prolongicaecum) Strausz, 1964 †
Subgenus Caecum (Strebloceras) P. P. Carpenter, 1859 accepted as Strebloceras P. P. Carpenter, 1859
Species Caecum aartseni Van Dingenen, Ceulemans & Landau, 2016 †
Species Caecum abreviatum de Folin, 1870
Species Caecum achates Sykes, 1925
Species Caecum achirona (de Folin, 1867)
Species Caecum achironum (de Folin, 1867) accepted as Caecum achirona (de Folin, 1867)
Species Caecum adamsi Raines, 2020
Species Caecum afrum Selli, 1974 † accepted as Caecum sepimentum de Folin, 1868
Species Caecum agoniatum de Folin, 1867 accepted as Caecum firmatum C. B. Adams, 1852
Species Caecum amaltheanum Hedley, 1899 accepted as Meioceras legumen (Hedley, 1899)
Species Caecum amamiense (T. Habe, 1978) accepted as Mauroceras amamiense (T. Habe, 1978)
Species Caecum amputatum Hedley, 1894
Species Caecum amydroglyptum Rehder, 1980
Species Caecum angustum de Folin, 1886
Species Caecum annulatum Emmons, 1858
Species Caecum annulatum Gabb, 1873 †
Species Caecum antillarum P. P. Carpenter, 1858
Species Caecum arabicum Issel, 1869 accepted as Caecum neocaledonicum de Folin, 1868
Species Caecum arabicus Issel, 1869 accepted as Caecum arabicum Issel, 1869
Species Caecum arcuatum de Folin, 1869 accepted as Caecum sepimentum de Folin, 1868
Species Caecum armoricum de Folin, 1869
Species Caecum atlantidis R. B. Watson, 1897
Species Caecum attenuatum de Folin, 1880
Species Caecum auriculatum de Folin, 1868
Species Caecum austrafricanum Vannozzi, Pizzini & Raines, 2015
Species Caecum australe Pizzini & Raines, 2011
Species Caecum bahiahondaense A. M. Strong & Hertlein, 1939 accepted as Caecum clathratum P. P. Carpenter, 1857
Species Caecum bakeri (Bartsch, 1920) accepted as Caecum dextroversum P. P. Carpenter, 1857
Species Caecum banoni Benoist, 1874 †
Species Caecum bathus Pizzini, Raines & Vannozzi, 2013
Species Caecum benhami Goedert & Raines, 2016 †
Species Caecum bensoni Goedert & Raines, 2016 †
Species Caecum berberense Ladd, 1972 † accepted as Caecum sepimentum de Folin, 1868
Species Caecum berthae Lange de Morretes, 1954 accepted as Caecum plicatum P. P. Carpenter, 1858
Species Caecum bezanconi Cossmann, 1888 † accepted as Strebloceras bezanconi (Cossmann, 1888) †
Species Caecum bicinctum de Folin, 1870
Species Caecum bimamillatum de Folin, 1867
Species Caecum bimarginatum Dautzenberg, 1912 accepted as Caecum rolani Pizzini & Nofroni, 2001
Species Caecum bimarginatum P. P. Carpenter, 1858
Species Caecum biminicola Pilsbry, 1951 accepted as Caecum plicatum P. P. Carpenter, 1858
Species Caecum biomaglo Vannozzi, 2023
Species Caecum bipartitum de Folin, 1870
Species Caecum borneoense de Folin, 1879
Species Caecum borneoensis de Folin, 1879 accepted as Caecum borneoense de Folin, 1879
Species Caecum bounty Pizzini & Raines, 2011
Species Caecum brasilicum de Folin, 1874
Species Caecum brennani Raines & Pizzini, 2009
Species Caecum breve de Folin, 1867
Species Caecum buccina de Folin, 1870 accepted as Caecum circumvolutum de Folin, 1867
Species Caecum bucerium (A. N. Golikov, 1967)
Species Caecum bucheri Parenzan, 1979 accepted as Filogranula annulata (O. G. Costa, 1861)
Species Caecum butoti De Jong & Coomans, 1988 accepted as Caecum marmoratum de Folin, 1869
Species Caecum californicum Dall, 1885
Species Caecum campanulatum Raines & Pizzini, 2005
Species Caecum capitanum de Folin, 1874 accepted as Caecum pulchellum W. Stimpson, 1851
Species Caecum carmenense de Folin, 1870 accepted as Caecum circumvolutum de Folin, 1867
Species Caecum carolinianum Dall, 1892
Species Caecum carpenteri (Bartsch, 1920) accepted as Caecum adamsi Raines, 2020
Species Caecum carpenteri Deshayes, 1861 †
Species Caecum caverna Moolenbeek, Faber & Iliffe, 1989
Species Caecum cayosense Rehder, 1943 accepted as Caecum floridanum W. Stimpson, 1851
Species Caecum chilense Stuardo, 1962
Species Caecum chinense de Folin, 1868
Species Caecum cinctum Olsson & Harbison, 1953
Species Caecum circumvolutum de Folin, 1867
Species Caecum clarae Pizzini, 2000 †
Species Caecum clarkii P. P. Carpenter, 1859
Species Caecum clarum E. Lamy, 1909
Species Caecum clathratum P. P. Carpenter, 1857
Species Caecum clava de Folin, 1867
Species Caecum clenchi Olsson & McGinty, 1958 accepted as Caecum cycloferum de Folin, 1867
Species Caecum cocoense Sibaja-Cordero, García-Méndez & Troncoso, 2013
Species Caecum cocoensis [sic] accepted as Caecum cocoense Sibaja-Cordero, García-Méndez & Troncoso, 2013
Species Caecum codoceoae Gálvez & Huidobro, 2017
Species Caecum complanatum de Folin, 1867 accepted as Caecum venustum de Folin, 1867
Species Caecum condylum D. R. Moore, 1969
Species Caecum conjunctum de Folin, 1867 accepted as Caecum pulchellum W. Stimpson, 1851
Species Caecum constrictum Gabb, 1873 †
Species Caecum continens van der Linden & Moolenbeek, 2000
Species Caecum contractum de Folin, 1870 accepted as Caecum bipartitum de Folin, 1870
Species Caecum cooki Pizzini & Raines, 2011
Species Caecum cooperi S. Smith, 1860
Species Caecum cooperi P. P. Carpenter, 1866 accepted as Caecum californicum Dall, 1885
Species Caecum corneum Dunker, 1875 accepted as Caecum ryssotitum de Folin, 1867
Species Caecum cornigerum (Morellet & Morellet, 1943) †
Species Caecum cornucopiae (P. P. Carpenter, 1859) accepted as Meioceras cornucopiae P. P. Carpenter, 1859
Species Caecum coronatum de Folin, 1867 accepted as Caecum imbricatum P. P. Carpenter, 1858
Species Caecum coronellum Dall, 1892 accepted as Caecum cycloferum de Folin, 1867
Species Caecum corrugatulum [sic] accepted as Caecum corrugulatum P. P. Carpenter, 1857
Species Caecum corrugulatum P. P. Carpenter, 1857
Species Caecum costatum A. E. Verrill, 1872 accepted as Caecum cooperi S. Smith, 1860
Species Caecum crassicostum Gabb, 1881 accepted as Caecum floridanum W. Stimpson, 1851
Species Caecum crassum de Folin, 1870
Species Caecum crebricinctum P. P. Carpenter, 1866
Species Caecum crispum A. E. Verrill & K. J. Bush, 1900
Species Caecum crispum Cerulli-Irelli, 1912 † accepted as Caecum clarae Pizzini, 2000 †
Species Caecum crystallinum de Folin, 1880
Species Caecum cubitatum (de Folin, 1868) accepted as Meioceras cubitatum de Folin, 1868
Species Caecum curtatum de Folin, 1867 accepted as Caecum pulchellum W. Stimpson, 1851
Species Caecum cuspidatum Chaster, 1896
Species Caecum cycloferum de Folin, 1867
Species Caecum dakuwaqa Pizzini, Raines & Vannozzi, 2013
Species Caecum dalli Bartsch, 1920 accepted as Caecum quadratum P. P. Carpenter, 1857
Species Caecum danielei Pizzini & Raines, 2011
Species Caecum debile A. E. Verrill & K. J. Bush, 1900
Species Caecum decussatum de Folin, 1869 accepted as Caecum plicatum P. P. Carpenter, 1858
Species Caecum delicatulum A. E. Verrill & K. J. Bush, 1900
Species Caecum derjugini (A. N. Golikov, 1967)
Species Caecum dextroversum P. P. Carpenter, 1857
Species Caecum diegense Bartsch, 1920 accepted as Caecum quadratum P. P. Carpenter, 1857
Species Caecum digitulum Hedley, 1904
Species Caecum diminutum C. B. Adams, 1852
Species Caecum directum Vannozzi, 2019
Species Caecum donmoorei Mitchell-Tapping, 1979
Species Caecum draperi Raines, 2020
Species Caecum dux de Folin, 1871
Species Caecum eburneum C. B. Adams, 1852 accepted as Caecum firmatum C. B. Adams, 1852
Species Caecum eburneum de Folin, 1886 accepted as Caecum folini Kisch, 1959
Species Caecum edwardsi Deshayes, 1861 † accepted as Strebloceras edwardsi (Deshayes, 1861) †
Species Caecum egenum Vannozzi, 2017
Species Caecum elegans Perejaslavtseva, 1891 accepted as Caecum trachea (Montagu, 1803)
Species Caecum elegans de Folin, 1867
Species Caecum elegantissimum P. P. Carpenter, 1859
Species Caecum eliezeri Absalão, 1997
Species Caecum elongatum P. P. Carpenter, 1857
Species Caecum engli Nofroni, Pizzini & Oliverio, 1997
Species Caecum erucatum de Folin, 1867 accepted as Caecum clathratum P. P. Carpenter, 1857
Species Caecum eunoi Nofroni, Pizzini & Oliverio, 1997
Species Caecum exile de Folin, 1880
Species Caecum fasciatum de Folin, 1876 accepted as Caecum trachea (Montagu, 1803)
Species Caecum fijiense Pizzini, Raines & Vannozzi, 2013
Species Caecum fimbratum Folin & Bérillon, 1874 †
Species Caecum firmatum C. B. Adams, 1852
Species Caecum floridanum W. Stimpson, 1851
Species Caecum folini Kisch, 1959
Species Caecum formulosum de Folin, 1869 accepted as Caecum imbricatum P. P. Carpenter, 1858
Variety Caecum formulosum var. paucicostata de Folin, 1869 accepted as Caecum imbricatum P. P. Carpenter, 1858
Variety Caecum formulosum var. simplex de Folin, 1869 accepted as Caecum imbricatum P. P. Carpenter, 1858
Variety Caecum formulosum var. sulcata de Folin, 1869 accepted as Caecum imbricatum P. P. Carpenter, 1858
Species Caecum frugi Vannozzi, 2019
Species Caecum fulvum Kisch, 1959 accepted as Caecum neocaledonicum de Folin, 1868
Species Caecum galapagoense Raines, 2020
Species Caecum geigeri Pizzini & Raines, 2011
Species Caecum glabellum (P. P. Carpenter, 1868)
Species Caecum glabriforme P. P. Carpenter, 1857
Species Caecum glabrum (Montagu, 1803)
Species Caecum gofasi Pizzini & Nofroni, 2001
Species Caecum gracile P. P. Carpenter, 1858
Species Caecum granulatum Vannozzi, 2019
Species Caecum grippi Bartsch, 1920 accepted as Caecum quadratum P. P. Carpenter, 1857
Species Caecum gulosum Hedley, 1899
Species Caecum gurgulio P. P. Carpenter, 1858
Species Caecum heladum Olsson & Harbison, 1953 †
Species Caecum hemisphericum de Folin, 1867
Species Caecum heptagonum P. P. Carpenter, 1857
Species Caecum heterapex T. Habe, 1963 accepted as Caecum clarum E. Lamy, 1909
Species Caecum heterochromum Raines & Pizzini, 2005
Species Caecum hinoidei T. Habe, 1978 accepted as Caecum neocaledonicum de Folin, 1868
Species Caecum houdasi Cossmann, 1907 †
Species Caecum houdasi Cossmann, 1907 † accepted as Caecum novallecense Cossmann, 1907 †
Species Caecum hyalinum Vannozzi, 2022
Species Caecum imbricatum P. P. Carpenter, 1858
Species Caecum impartitum de Folin, 1867 accepted as Caecum firmatum C. B. Adams, 1852
Species Caecum imperfectum de Folin, 1867 accepted as Caecum laeve C. B. Adams, 1852
Species Caecum imperforatum Kanmacher, 1798
Species Caecum incisum Vannozzi, Pizzini & Raines, 2015
Species Caecum inclinatum de Folin, 1869
Species Caecum incomptum (Monterosato, 1884) accepted as Caecum armoricum de Folin, 1869
Species Caecum infimum de Folin, 1867
Species Caecum inflatulum Vannozzi, 2017
Species Caecum inflatum de Folin, 1869
Species Caecum inhacaense Albano & Pizzini, 2011
Species Caecum insculptum P. P. Carpenter, 1857
Species Caecum insigne de Folin, 1867 accepted as Caecum imbricatum P. P. Carpenter, 1858
Species Caecum instructum de Folin, 1870 accepted as Caecum bipartitum de Folin, 1870
Species Caecum insularum D. R. Moore, 1969
Species Caecum interruptum de Folin, 1867 accepted as Caecum clathratum P. P. Carpenter, 1857
Species Caecum intortum Vannozzi, Pizzini & Raines, 2015
Species Caecum invisibile Egger & Jörger, 2020
Species Caecum iricolor Vannozzi, 2023
Species Caecum irregulare de Folin, 1867 accepted as Caecum floridanum W. Stimpson, 1851
Species Caecum japonicum (Habe, 1978)
Species Caecum johnsoni Winkley, 1908
Species Caecum jonatani Espinosa, Ortea & Fernández-Garcés, 2007
Species Caecum jonesae Swinnen & Simone, 2024
Species Caecum jucundum de Folin, 1867
Species Caecum knysnaense Vannozzi, Pizzini & Raines, 2015
Species Caecum kontiki Pizzini & Raines, 2011
Species Caecum laeve C. B. Adams, 1852
Species Caecum lapita Pizzini, Raines & Vannozzi, 2013
Species Caecum laqueatum C. B. Adams, 1852
Species Caecum larieyense Lozouet, Lesport & Renard, 2001 †
Species Caecum legumen Hedley, 1899 accepted as Mauroceras legumen (Hedley, 1899)
Species Caecum leilae Vannozzi, Pizzini & Raines, 2015
Species Caecum leptoglyphos de Folin, 1881 accepted as Caecum textile de Folin, 1867
Species Caecum lermondi Dall, 1924 accepted as Meioceras nitidum (W. Stimpson, 1851)
Species Caecum leve C. B. Adams, 1852 accepted as Caecum laeve C. B. Adams, 1852
Species Caecum licalum Bartsch, 1920 accepted as Caecum quadratum P. P. Carpenter, 1857
Species Caecum lightfootae Pizzini, Nofroni & Oliverio, 1994 accepted as Caecum atlantidis R. B. Watson, 1897
Species Caecum lightfootanum Raines, 2020
Species Caecum lilianum Hedley, 1903 accepted as Caecum sepimentum de Folin, 1868
Species Caecum limnetes G. E. Long, 1972
Species Caecum limpidum de Folin, 1874
Species Caecum lindae Vannozzi, Pizzini & Raines, 2015
Species Caecum lineicinctum de Folin, 1880
Species Caecum liratocinctum P. P. Carpenter, 1857 accepted as Caecum laqueatum C. B. Adams, 1852
Species Caecum lituus Deshayes, 1861 † accepted as Strebloceras lituus (Deshayes, 1861) †
Species Caecum lohri (A. M. Strong & Hertlein, 1939) accepted as Caecum superbum de Folin, 1867
Species Caecum loyaltense Pizzini, Raines & Vannozzi, 2013
Species Caecum lozoueti Vannozzi & Renda, 2024
Species Caecum lucidum de Folin, 1867
Species Caecum macrum van der Linden & Moolenbeek, 2000
Species Caecum maculatum T. Habe, 1963 accepted as Caecum sepimentum de Folin, 1868
Species Caecum maestratii Pizzini, Raines & Vannozzi, 2013 accepted as Mauroceras maestratii (Pizzini, Raines & Vannozzi, 2013)
Species Caecum magellanicum (di Geronimo, Privitera & Valdovinos, 1995)
Species Caecum malleatum de Folin, 1868 accepted as Caecum modestum de Folin, 1868
Species Caecum mamillatum † accepted as Caecum mammillatum S. V. Wood, 1848 †
Species Caecum mammillatum S. V. Wood, 1848 †
Species Caecum maori Pizzini & Raines, 2006
Species Caecum maraisi Vannozzi, Pizzini & Raines, 2015
Species Caecum marginatum de Folin, 1869
Species Caecum marmoratum de Folin, 1869
Species Caecum massambabense Absalão, 1994
Species Caecum mauritianum de Folin, 1867
Species Caecum metamorphosicum S. Lima, Santos & Absalão, 2013
Species Caecum microannulatum Vannozzi & Renda, 2024
Species Caecum microcyclos de Folin, 1880 accepted as Caecum attenuatum de Folin, 1880
Species Caecum microcyclus [sic] accepted as Caecum microcyclos de Folin, 1880
Species Caecum microstriatum Pizzini, Raines & Vannozzi, 2013
Species Caecum miliarium Vannozzi & Renda, 2024
Species Caecum mineuri Lozouet, 1999 †
Species Caecum minutum de Folin, 1867 accepted as Caecum dextroversum P. P. Carpenter, 1857
Species Caecum miocenicum Benoist, 1874 †
Species Caecum mirabile de Folin, 1867 accepted as Caecum insculptum P. P. Carpenter, 1857
Species Caecum mirificum de Folin, 1867
Species Caecum modestum de Folin, 1868
Species Caecum monstrosum C. B. Adams, 1852 accepted as Caecum firmatum C. B. Adams, 1852
Species Caecum moorei (Marincovich, 1973)
Species Caecum morelletorum Gougerot & Le Renard, 1978 †
Species Caecum morgan Vannozzi, Pizzini & Raines, 2015
Species Caecum multiannulatum Dautzenberg & Bouge, 1933 accepted as Caecum vertebrale Hedley, 1899
Species Caecum multicostatum de Folin, 1867
Species Caecum musorstomi Pizzini, Raines & Vannozzi, 2013
Species Caecum mutabile de Folin, 1869 accepted as Caecum venustum de Folin, 1867
Species Caecum nasutum Vannozzi, 2019
Species Caecum nebulosum (Rehder, 1943) accepted as Meioceras cornucopiae P. P. Carpenter, 1859
Species Caecum nemoralis Lozouet, 2015 †
Species Caecum neocaledonicum de Folin, 1868
Species Caecum neoguineanum Vannozzi, 2019
Species Caecum nitidum W. Stimpson, 1851 accepted as Meioceras nitidum (W. Stimpson, 1851)
Species Caecum nofronii Vannozzi, 2019
Species Caecum novallecense Cossmann, 1907 †
Species Caecum oahuense Pilsbry, 1921
Species Caecum obesum A. E. Verrill & K. J. Bush, 1900 accepted as Caecum plicatum P. P. Carpenter, 1858
Species Caecum obtusum P. P. Carpenter, 1857 accepted as Caecum subspirale P. P. Carpenter, 1857
Species Caecum occidentale (Bartsch, 1920) accepted as Caecum dextroversum P. P. Carpenter, 1857
Species Caecum occultum de Folin, 1867 accepted as Caecum strangulatum de Folin, 1867
Species Caecum orcutti Dall, 1885
Species Caecum orientale de Folin, 1868 accepted as Caecum clarkii P. P. Carpenter, 1859
Species Caecum paradoxum de Folin, 1867
Species Caecum parryensis Ladd, 1972 † accepted as Mauroceras kajiyamai (T. Habe, 1963)
Species Caecum parvulum de Folin, 1867 accepted as Caecum dextroversum P. P. Carpenter, 1857
Species Caecum parvum C. B. Adams, 1852
Species Caecum pascuanum Raines & Pizzini, 2005
Species Caecum pertenuis Laws, 1941 †
Species Caecum phronimum de Folin, 1867 accepted as Caecum floridanum W. Stimpson, 1851
Species Caecum planum de Folin, 1874
Species Caecum plicatum P. P. Carpenter, 1858
Species Caecum pollicare P. P. Carpenter, 1859
Species Caecum praebanoni Gougerot, 1977 †
Species Caecum praegrande Vannozzi, 2017
Species Caecum pseudoglabrum Gougerot, 1977 †
Species Caecum pulchellum W. Stimpson, 1851
Species Caecum puntagordanum Weisbord, 1962 † accepted as Caecum floridanum W. Stimpson, 1851
Species Caecum putnamense Mansfield, 1924 accepted as Caecum johnsoni Winkley, 1908
Species Caecum putnamensis Mansfield, 1924 accepted as Caecum putnamense Mansfield, 1924
Species Caecum pygmaeum C. B. Adams, 1852 accepted as Caecum firmatum C. B. Adams, 1852
Species Caecum pygmaeum (Defrance, 1819) †
Species Caecum quadratum P. P. Carpenter, 1857
Species Caecum rapanuiense Raines & Pizzini, 2005
Species Caecum regulare P. P. Carpenter, 1858
Species Caecum rehderi Raines & Pizzini, 2005
Species Caecum restrictum Vannozzi & Renda, 2024
Species Caecum reversum P. P. Carpenter, 1857
Species Caecum richthofeni A. M. Strong & Hertlein, 1939 accepted as Caecum strangulatum de Folin, 1867
Species Caecum rijgersmai De Jong & Coomans, 1988
Species Caecum roederi Raines, C. L. Powell & LaFollette, 2023 †
Species Caecum rolani Pizzini & Nofroni, 2001
Species Caecum rostratum de Folin, 1881
Species Caecum rotundum de Folin, 1868 accepted as Meioceras nitidum (W. Stimpson, 1851)
Species Caecum ruggerii Pizzini, 1997 accepted as Caecum clarum E. Lamy, 1909
Species Caecum ryssotitum de Folin, 1867
Species Caecum saavedrae V. Beltrán, 1965 accepted as Caecum auriculatum de Folin, 1868
Species Caecum sardinianum de Folin, 1870 accepted as Caecum clarkii P. P. Carpenter, 1859
Species Caecum saucatsense Benoist, 1874 †
Species Caecum sculptum de Folin, 1881 accepted as Caecum imbricatum P. P. Carpenter, 1858
Species Caecum searleswoodii P. P. Carpenter, 1859
Species Caecum semicinctum de Folin, 1867
Species Caecum semilaeve P. P. Carpenter, 1857
Species Caecum semitrachea Monterosato, 1884 accepted as Caecum trachea (Montagu, 1803)
Species Caecum senegambianum de Folin, 1870
Species Caecum sepimentum de Folin, 1868
Species Caecum sericeum de Folin, 1873
Species Caecum shaskyi Raines, 2020
Species Caecum simplicissimum Thiele, 1925
Species Caecum sinuatum de Folin, 1879
Species Caecum skoglundae Pizzini, Raines & Nofroni, 2007
Species Caecum smithi Cooper, 1872 accepted as Caecum cooperi S. Smith, 1860
Species Caecum smriglioi Pizzini, Nofroni & Bonfitto, 2008
Species Caecum solitarium W. R. B. Oliver, 1915 accepted as Caecum maori Pizzini & Raines, 2006
Species Caecum someri (de Folin, 1867)
Species Caecum spiculum Raines, 2020
Species Caecum spinosum de Folin, 1873
Species Caecum strangulatum de Folin, 1867
Species Caecum striatum de Folin, 1868
Species Caecum strictum de Folin, 1871
Species Caecum strigosum de Folin, 1868
Species Caecum suave de Folin, 1869 accepted as Caecum firmatum C. B. Adams, 1852
Species Caecum subannulatum de Folin, 1870
Species Caecum subaustrale Stuardo, 1970
Species Caecum subcylindratum Pizzini, Raines & Vannozzi, 2013
Species Caecum subflavum de Folin, 1880
Species Caecum subornatum de Folin, 1869 accepted as Caecum laeve C. B. Adams, 1852
Species Caecum subornatum de Folin, 1874
Species Caecum subquadratum P. P. Carpenter, 1859
Species Caecum subspirale P. P. Carpenter, 1857
Species Caecum subvolutum de Folin, 1874
Species Caecum succineum de Folin, 1880
Species Caecum superbum de Folin, 1867
Species Caecum suteri Odhner, 1924 accepted as Caecum digitulum Hedley, 1904
Species Caecum swinneni Nofroni, Pizzini & Oliverio, 1997
Species Caecum syriacum de Folin, 1869 accepted as Caecum auriculatum de Folin, 1868
Species Caecum taeniatum de Folin, 1869
Species Caecum taeniatum de Folin, 1867 accepted as Caecum diminutum C. B. Adams, 1852
Species Caecum tahitianum Pizzini & Raines, 2011
Species Caecum temporale Vannozzi & Renda, 2024
Species Caecum tenue A. E. Verrill & K. J. Bush, 1900
Species Caecum tenue Milaschewitsch, 1912 accepted as Caecum armoricum de Folin, 1869
Species Caecum tenuicostatum de Folin, 1881
Species Caecum tenuistriatum O. Boettger, 1869 †
Species Caecum teres P. P. Carpenter, 1857
Species Caecum termes Heilprin, 1889 accepted as Caecum plicatum P. P. Carpenter, 1858
Species Caecum textile de Folin, 1867
Species Caecum thionvillense Gougerot & Le Renard, 1984 †
Species Caecum tomaculum Weisbord, 1962 accepted as Caecum ryssotitum de Folin, 1867
Species Caecum tornatum A. E. Verrill & K. J. Bush, 1900
Species Caecum torquetum de Folin, 1867
Species Caecum tortile Dall, 1892
Species Caecum trachea (Montagu, 1803)
Species Caecum trindadense S. Lima, Santos & Absalão, 2013
Species Caecum triornatum de Folin, 1870 accepted as Caecum bipartitum de Folin, 1870
Species Caecum troglodyta Moolenbeek, Faber & Iliffe, 1989
Species Caecum tumidum P. P. Carpenter, 1858 †
Species Caecum uncinatum de Folin, 1867 accepted as Caecum strangulatum de Folin, 1867
Species Caecum undatum P. P. Carpenter, 1857 accepted as Caecum parvum C. B. Adams, 1852
Species Caecum uvea Pizzini, Raines & Vannozzi, 2013 accepted as Caecum folini Kisch, 1959
Species Caecum validum de Folin, 1867 accepted as Caecum subspirale P. P. Carpenter, 1857
Species Caecum vanuatuarum Pizzini, Raines & Vannozzi, 2013
Species Caecum varanoi Pizzini, Nofroni & Bonfitto, 2008
Species Caecum variegatum de Folin, 1867
Species Caecum venosum de Folin, 1867
Species Caecum venustum de Folin, 1867
Species Caecum veracruzanum de Folin, 1870 accepted as Caecum circumvolutum de Folin, 1867
Species Caecum verai J. A. Moreno, Peñas & Rolán, 2003 †
Species Caecum vertebrale Hedley, 1899
Species Caecum vestitum de Folin, 1870 accepted as Caecum circumvolutum de Folin, 1867
Species Caecum vicinum de Folin, 1870
Species Caecum virginiae Pizzini, Raines & Vannozzi, 2013
Species Caecum vitreum P. P. Carpenter, 1859
Species Caecum wakense Raines & Vannozzi, 2024
Species Caecum wami Raines & Pizzini, 2009
Species Caecum wayae Pizzini & Nofroni, 2001
Species Caecum zaagmani De Jong & Coomans, 1988
Genus Mauroceras Vannozzi, 2019 (8)
Genus Meioceras P. P. Carpenter, 1859 (4)
Genus Pizzinia Vannozzi, 2017 (1)
Subfamily Ctiloceratinae Iredale & Laseron, 1957 (31)
Subfamily Pedumicrinae Iredale & Laseron, 1957 accepted as Ctiloceratinae Iredale & Laseron, 1957
Subfamily Strebloceratinae Bandel, 1996 (9)
Genus Brochina Gray, 1857 accepted as Caecum (Brochina) J. E. Gray, 1857
Genus Brochus T. Brown, 1827 accepted as Caecum J. Fleming, 1813
Genus Caecalium J. Fleming, 1822 accepted as Caecum J. Fleming, 1813
Genus Carinocera Iredale & Laseron, 1957 accepted as Ctiloceras (Carinocera) Iredale & Laseron, 1957
Genus Coecum [sic] accepted as Caecum J. Fleming, 1813
Genus Cornuoides T. Brown, 1827 accepted as Caecum J. Fleming, 1813
Genus Elephantanellum Bartsch, 1920 accepted as Caecum J. Fleming, 1813
Genus Elephantellum [sic] accepted as Elephantanellum Bartsch, 1920
Genus Elephantulum P. P. Carpenter, 1857 accepted as Caecum (Elephantulum) P. P. Carpenter, 1857
Genus Fartulum P. P. Carpenter, 1857 accepted as Caecum (Fartulum) P. P. Carpenter, 1857
Genus Gladioceras Iredale & Laseron, 1957 accepted as Parastrophia (Watsonia) de Folin, 1880
Genus Micranellum Bartsch, 1920 accepted as Caecum J. Fleming, 1813
Genus Mioceras Cossmann, 1912 accepted as Meioceras P. P. Carpenter, 1859
Genus Moreletia de Folin, 1869 accepted as Parastrophia de Folin, 1869
Genus Odontidium R. A. Philippi, 1836 accepted as Caecum J. Fleming, 1813
Genus Pedumicra Iredale & Laseron, 1957 accepted as Parastrophia de Folin, 1869
Genus Phleboceras de Folin, 1868 accepted as Strebloceras P. P. Carpenter, 1859
Genus Pictocaecum T. Habe, 1978 accepted as Caecum J. Fleming, 1813
Genus Pseudoparastrophia Di Staso, 1905 accepted as Parastrophia de Folin, 1869
Genus Spirolidium O. G. Costa, 1861 accepted as Parastrophia de Folin, 1869
Genus Torresella Iredale & Laseron, 1957 accepted as Ctiloceras (Torresella) Iredale & Laseron, 1957
Genus Transcopia Iredale & Laseron, 1957 accepted as Ctiloceras (Transcopia) Iredale & Laseron, 1957
Genus Watsonia de Folin, 1880 accepted as Parastrophia (Watsonia) de Folin, 1880
Family Caledoniellidae Rosewater, 1969 (6)
Family Calopiidae Ponder, 1999 (3)
Family Circulidae Fretter & Graham, 1962 accepted as Vitrinellidae K. J. Bush, 1897
Family Clenchiellidae D. W. Taylor, 1966 (14)
Family Cochliopidae Tryon, 1866 (414)
Family Coxiellidae Iredale, 1943 accepted as Tomichiidae Wenz, 1938
Family Ctiloceratidae Iredale & Laseron, 1957 accepted as Ctiloceratinae Iredale & Laseron, 1957
Family Cyclotropidae Iredale, 1941 accepted as Ekadantinae Thiele, 1929
Family Elachisinidae Ponder, 1985 (71)
Family Emmericiidae Brusina, 1870 (46)
Family Epigridae Ponder, 1985 (4)
Family Erhaiidae G. M. Davis & Y.-H. Kuo, 1985 (36)
Family Fairbankiinae Thiele, 1928 accepted as Iravadiidae Thiele, 1928
Family Falsicingulidae Slavoshevskaya, 1975 (5)
Family Fontigentidae D. W. Taylor, 1966 (16)
Family Helicostoidae Pruvot-Fol, 1937 accepted as Helicostoinae Pruvot-Fol, 1937
Family Hyalidae A. N. Golikov & Starobogatov, 1975 accepted as Iravadiidae Thiele, 1928
Family Hydrobiidae W. Stimpson, 1865 (2 115)
Family Hydrococcidae Thiele, 1928 (1)
Family Iravadiidae Thiele, 1928 (140)
Family Kolhymamnicolidae Starobogatov, 1983 accepted as Amnicolinae Tryon, 1863
Family Limnoreidae B. Dybowski, 1911 accepted as Baicaliidae P. Fischer, 1885
Family Lithoglyphidae Tryon, 1866 (174)
Family Lithoglyphulidae Radoman, 1973 accepted as Horatiinae D. W. Taylor, 1966
Family Litthabitellidae Falniowski & Hofman, 2023 (4)
Family Mesocochliopidae X.-H. Yu, 1987 † (6)
Family Micromelaniidae B. Dybowski & Grochmalicki, 1913 accepted as Pyrgulinae Brusina, 1882
Family Micropyrgulidae Radoman, 1973 accepted as Pyrgulinae Brusina, 1882
Family Moitessieriidae Bourguignat, 1864 (315)
Family Orientaliidae Radoman, 1973 accepted as Horatiinae D. W. Taylor, 1966
Family Orientalinidae Radoman, 1978 accepted as Horatiinae D. W. Taylor, 1966
Family Palaeobaicaliidae Sitnikova & Vinarski, 2023 † (11)
Family Paludestrinidae R. B. Newton, 1891 accepted as Eatoniellidae Ponder, 1965
Family Paludinellidae T. Habe, 1976 accepted as Ekadantinae Thiele, 1929
Family Pomatiopsidae W. Stimpson, 1865 (285)
Family Potamopyrgidae F. C. Baker, 1928 accepted as Tateidae Thiele, 1925
Family Pseudomerelininae Starobogatov, 1989 accepted as Iravadiidae Thiele, 1928
Family Pyrgulidae Brusina, 1882 (1869) accepted as Hydrobiidae W. Stimpson, 1865
Family Spirostyliferinidae Layton, Middelfart, Tatarnic & N. G. Wilson, 2019 (2)
Family Squamapicidae L.-J. Zhang & von Rintelen, 2024 (1)
Family Stenothyridae Tryon, 1866 (123)
Family Synceratidae Bartsch, 1920 accepted as Assimineinae H. Adams & A. Adams, 1856
Family Tanousiidae Starobogatov, 1983 accepted as Horatiinae D. W. Taylor, 1966
Family Tateidae Thiele, 1925 (435)
Family Teinostomatidae Cossmann, 1917 (111)
Family Terrestribythinellidae Sitnikova, Starobogatov & V. V. Anistratenko, 1992 accepted as Bythinellidae Locard, 1893
Family Tomichiidae Wenz, 1938 (29)
Family Tornidae Sacco, 1896 (1884) (405)
Family Truncatellidae J. E. Gray, 1840 (125)
Family Truncatelloidea incertae sedis (5)
Family Tutuilanidae Hubendick, 1952 accepted as Omphalotropidinae Thiele, 1927
Family Vitrinellidae K. J. Bush, 1897 (333)
Subfamily Fontigentinae D. W. Taylor, 1966 accepted as Fontigentidae D. W. Taylor, 1966
Subfamily Hemistomiinae Thiele, 1929 accepted as Tateidae Thiele, 1925
Subfamily Orientalininae Radoman, 1978 accepted as Horatiinae D. W. Taylor, 1966
Subfamily Stenothyrinae Tryon, 1866 accepted as Stenothyridae Tryon, 1866
Subfamily Tomichiinae Wenz, 1938 accepted as Tomichiidae Wenz, 1938
Superfamily Vanikoroidea Gray, 1840 (1 331)
Superfamily Velutinoidea Gray, 1840 (648)
Superfamily Vermetoidea Rafinesque, 1815 (172)
Superfamily Xenophoroidea Troschel, 1852 (1840) accepted as Stromboidea Rafinesque, 1815
Order Neogastropoda (23 828)
Order Stenoglossa accepted as Neogastropoda
Subclass Gastropoda incertae sedis (313)
Subclass Heterobranchia (39 224)
Subclass Neomphaliones accepted as Vetigastropoda
Subclass Neritimorpha (1 916)
Subclass Orthogastropoda represented as Gastropoda
Subclass Patellogastropoda (514)
Subclass Prosobranchia
Subclass Psilogastropoda represented as Gastropoda
Subclass Vetigastropoda (6 789)
Class Lamellibranchiata accepted as Bivalvia
Class Loricata accepted as Polyplacophora
Class Mollusca incertae sedis † (372)
Class Monoplacophora (229)
Class Pelecypoda accepted as Bivalvia
Class Polyplacophora (1 381)
Class Polyplaxiphora accepted as Polyplacophora
Class Rostroconchia † (64)
Class Scaphopoda (753)
Class Solenoconchia accepted as Scaphopoda
Class Solenogastres (313)
Subclass Chaetodermomorpha accepted as Caudofoveata