Between brackets is the number of accepted species

Click on "-" to collapse/hide all child taxa
Shows the number of accepted species within the taxon
The last expanded taxon is highlighted
Click on "+" to expand/show all child taxa
Click to see the taxon details page
- Mollusca (132 791)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (25 009)
- Class Caudofoveata (143)
- Class Cephalopoda (1 834)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 697)
- Subclass Amphigastropoda † (390)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (53 636)
- Subterclass Sorbeoconcha (147)
- Superorder Hypsogastropoda
- Order Architaenioglossa (4 918)
- Order Caenogastropoda incertae sedis (7 676)
- Order Littorinimorpha (17 179)
- Order Neogastropoda (23 716)
- Superfamily Buccinoidea Rafinesque, 1815 (5 253)
- Family Alectrionidae Dall, 1908 accepted as Nassariinae Iredale, 1916 (1835)
- Family Anachidae A. N. Golikov & Starobogatov, 1972 accepted as Atiliinae Cossmann, 1901
- Family Arculariidae Iredale, 1915 accepted as Nassariinae Iredale, 1916 (1835)
- Family Austrosiphonidae Cotton & Godfrey, 1938 (58)
- Family Belomitridae Kantor, Puillandre, Rivasseau & Bouchet, 2012 (32)
- Family Beringiidae A. N. Golikov & Starobogatov, 1975 accepted as Beringiinae A. N. Golikov & Starobogatov, 1975
- Family Buccinanopsidae Galindo, Puillandre, Lozouet & Bouchet, 2016 (7)
- Family Buccinidae Rafinesque, 1815 (512)
- Family Buccinoidea incertae sedis (154)
- Family Buccinulidae H. J. Finlay, 1928 accepted as Tudiclidae Cossmann, 1901
- Family Busyconidae Wade, 1917 (1867) (33)
- Family Cassidulidae Gray, 1854 accepted as Melongenidae Gill, 1871 (1854)
- Family Chauvetiidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (61)
- Family Colidae J. E. Gray, 1857 (32)
- Family Colubrariidae Dall, 1904 (162)
- Family Columbellidae Swainson, 1840 (1 201)
- Family Cominellidae J. E. Gray, 1857 (76)
- Family Cyclopsidae Chenu, 1859 accepted as Nassariinae Iredale, 1916 (1835)
- Family Cyrtulidae MacDonald, 1869 accepted as Fusininae Wrigley, 1927
- Family Dolicholatiridae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (43)
- Family Donovaniidae T. L. Casey, 1904 accepted as Chauvetiidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021
- Family Echinofulguridae Petuch, 1994 † (15)
- Family Eosiphonidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (72)
- Family Fasciolariidae Gray, 1853 (883)
- Family Fulguridae Stoliczka, 1867 accepted as Busyconinae Wade, 1917 (1867)
- Family Galeodidae Thiele, 1925 accepted as Melongenidae Gill, 1871 (1854)
- Family Heligmotomidae Adegoke, 1977 † accepted as Melongenidae Gill, 1871 (1854)
- Family Latiridae Iredale, 1929 accepted as Fasciolariinae Gray, 1853
- Family Melongenidae Gill, 1871 (1854) (90)
- Family Nassariidae Iredale, 1916 (1835) (1 083)
- Family Neptuneidae W. Stimpson, 1865 accepted as Neptuneinae W. Stimpson, 1865
- Family Peristerniidae Tryon, 1880 accepted as Peristerniinae Tryon, 1880
- Family Pisaniidae J. E. Gray, 1857 (321)
- Genus Ameranna Landau & Vermeij, 2012 (7)
- Genus Aplus De Gregorio, 1885 (31)
- Genus Appisania Thiele, 1929 accepted as Pisania Bivona e Bernardi, 1832
- Genus Bailya M. Smith, 1944 (14)
- Genus Calicantharus B. L. Clark, 1938 accepted as Pusio J. E. Gray, 1833
- Genus Cancellopollia Vermeij & Bouchet, 1998 (3)
- Genus Cantharulus Meek, 1876 † (4)
- Genus Cantharus Röding, 1798 (26)
- Genus Dianthiphos Watters, 2009 (6)
- Genus Ecmanis Gistel, 1848 (1)
- Genus Editharus Vermeij, 2001 † (10)
- Genus Endopachychilus Cossmann, 1889 † (6)
- Genus Engina J. E. Gray, 1839 (68)
- Genus Enginella Monterosato, 1917 (3)
- Genus Eocantharus B. L. Clark, 1938 † (10)
- Genus Eopreangeria Banerjee & Halder, 2024 † (1)
- Genus Gemophos Olsson & Harbison, 1953 (11)
- Genus Gorgina Preston, 1909 accepted as Engina J. E. Gray, 1839
- Genus Hesperisternia J. A. Gardner, 1944 (13)
- Genus Ickarus Vermeij, 2001 † (1)
- Genus Janiopsis Rovereto, 1899 † (13)
- Genus Jeannea Iredale, 1912 accepted as Pisania (Jeannea) Iredale, 1912
- Genus Lagena Röding, 1798 accepted as Pollia J. E. Gray, 1834
- Genus Micrologus Fraussen & Rosado, 2011 (1)
- Genus Monostiolum Dall, 1904 (12)
- Species Monostiolum atlanticum (Coelho, Matthews & Cardoso, 1970)
- Species Monostiolum auratum Watters & C. J. Finlay, 1989
- Species Monostiolum crebristriatus (P. P. Carpenter, 1856)
- Species Monostiolum fumosum Watters, 2009
- Species Monostiolum harryleei E. F. García, 2006
- Species Monostiolum hungaricum (Csepreghy-Meznerics, 1954) †
- Species Monostiolum nigricostatum (Reeve, 1846) accepted as Sinetectula nigricostata (Reeve, 1846)
- Species Monostiolum nocturnum Watters, 2009
- Species Monostiolum pictum (Reeve, 1844)
- Species Monostiolum rosewateri Watters & C. J. Finlay, 1989
- Species Monostiolum simonei Watters, 2016
- Species Monostiolum tessellatum (Reeve, 1844)
- Species Monostiolum varians (Michelotti, 1847) †
- Species Monostiolum weberi (Watters, 1983) accepted as Bailya weberi (Watters, 1983)
- Genus Muricantharus Olsson, 1971 accepted as Hesperisternia J. A. Gardner, 1944
- Genus Pisania Bivona e Bernardi, 1832 (26)
- Genus Pollia J. E. Gray, 1834 (28)
- Genus Proboscidea Möller, 1832 accepted as Ecmanis Gistel, 1848
- Genus Pusio J. E. Gray, 1833 (3)
- Genus Pusiostoma Swainson, 1840 accepted as Engina J. E. Gray, 1839
- Genus Samudra Beets, 1987 † (1)
- Genus Sinetectula Fraussen & Vermeij, 2021 (6)
- Genus Solenosteira Dall, 1890 (9)
- Genus Steye Faber, 2004 (4)
- Genus Sukunaia Cernohorsky, 1966 accepted as Pisania Bivona e Bernardi, 1832
- Genus Tritonidea Swainson, 1840 accepted as Pollia J. E. Gray, 1834
- Genus Tritonidia [sic] accepted as Pollia J. E. Gray, 1834
- Genus Triumphis J. E. Gray, 1857 (3)
- Genus Zeapollia H. J. Finlay, 1926 † accepted as Cantharus Röding, 1798
- Family Prodotiidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (27)
- Family Prosiphonidae A. W. B. Powell, 1951 (165)
- Family Pusiostomatidae Iredale, 1940 accepted as Pisaniidae J. E. Gray, 1857
- Family Pyrenidae Suter, 1909 accepted as Atiliinae Cossmann, 1901
- Family Retimohniidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (31)
- Family Tudiclidae Cossmann, 1901 (195)
- Family Volemidae Winckworth, 1945 accepted as Melongenidae Gill, 1871 (1854)
- Superfamily Cancellarioidea Forbes & Hanley, 1851 accepted as Volutoidea Rafinesque, 1815
- Superfamily Conoidea J. Fleming, 1822 (8 674)
- Superfamily Mitroidea Swainson, 1831 (633)
- Superfamily Muricacea accepted as Muricoidea Rafinesque, 1815
- Superfamily Muricoidea Rafinesque, 1815 (2 940)
- Superfamily Neogastropoda incertae sedis (296)
- Superfamily Olivoidea Latreille, 1825 (740)
- Superfamily Pholidotomoidea Cossmann, 1896 † (55)
- Superfamily Pseudolivoidea De Gregorio, 1880 accepted as Olivoidea Latreille, 1825
- Superfamily Pyrifusoidea Bandel & Dockery, 2001 † accepted as Pholidotomoidea Cossmann, 1896 †
- Superfamily Sarganoidea Stephenson, 1923 † accepted as Pholidotomoidea Cossmann, 1896 †
- Superfamily Toxoglossa Troschel, 1848 accepted as Conoidea J. Fleming, 1822
- Superfamily Turbinelloidea Swainson, 1835 (1 252)
- Superfamily Volutoidea Rafinesque, 1815 (3 873)
- Order Stenoglossa accepted as Neogastropoda
- Subclass Gastropoda incertae sedis (308)
- Subclass Heterobranchia (39 156)
- Subclass Neomphaliones accepted as Vetigastropoda
- Subclass Neritimorpha (1 914)
- Subclass Orthogastropoda represented as Gastropoda
- Subclass Patellogastropoda (511)
- Subclass Prosobranchia
- Subclass Psilogastropoda represented as Gastropoda
- Subclass Vetigastropoda (6 782)
- 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 (1 377)
- Class Polyplaxiphora accepted as Polyplacophora
- Class Rostroconchia † (64)
- Class Scaphopoda (752)
- Class Solenoconchia accepted as Scaphopoda
- Class Solenogastres (313)
- Subclass Chaetodermomorpha accepted as Caudofoveata