Between brackets is the number of accepted species
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- Mollusca (131 605)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (24 511)
- Class Caudofoveata (143)
- Class Cephalopoda (1 772)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida †
- Class Gastropoda (102 072)
- Subclass Amphigastropoda † (382)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (53 117)
- Subterclass Sorbeoconcha (146)
- Superorder Hypsogastropoda
- Order Architaenioglossa (4 912)
- Order Caenogastropoda incertae sedis (7 648)
- Order Littorinimorpha (17 086)
- Superfamily Calyptraeoidea Lamarck, 1809 (202)
- Superfamily Capuloidea J. Fleming, 1822 (218)
- 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 (1 213)
- Family Amphiperatidae J. E. Gray, 1853 accepted as Ovulidae J. Fleming, 1822
- Family Cypraeidae Rafinesque, 1815 (748)
- Subfamily Adustinae Cotton & Steadman, 1946 accepted as Erroneinae F. A. Schilder, 1927
- Subfamily Archicypraeinae F. A. Schilder, 1927 † accepted as Gisortiinae F. A. Schilder, 1927 †
- Subfamily Bernayinae Schilder, 1927 † accepted as Gisortiinae F. A. Schilder, 1927 †
- Subfamily Cypraeinae Rafinesque, 1815 (81)
- Subfamily Cypraeovulinae F. A. Schilder, 1927 (47)
- Subfamily Erosariinae Schilder, 1924 (118)
- Subfamily Erroneinae F. A. Schilder, 1927 (149)
- Subfamily Gisortiinae F. A. Schilder, 1927 † (60)
- Genus Afrocypraea F. A. Schilder, 1932 †
- Genus Archicypraea F. A. Schilder, 1926 † (9)
- Genus Bernaya Jousseaume, 1884 † (19)
- Subgenus Bernaya (Bernaya) Jousseaume, 1884 † accepted as Bernaya Jousseaume, 1884 †
- Species Bernaya (Bernaya) beardi Groves, 2004 † accepted as Protocypraea beardi (Groves, 2004) †
- Species Bernaya (Bernaya) crawfordcatei Groves, 1990 † accepted as Protocypraea crawfordcatei (Groves, 1990) †
- Species Bernaya (Bernaya) gemmellaroi (Di Stefano, 1882) † represented as Bernaya gemmellaroi (Di Stefano, 1882) †
- Species Bernaya (Bernaya) grovesi Squires & Demetrion, 1992 † accepted as Semicypraea grovesi (Squires & Demetrion, 1992) †
- Species Bernaya (Bernaya) jeanae Groves, 2004 † accepted as Protocypraea jeanae (Groves, 2004) †
- Species Bernaya (Bernaya) molisana Capasso, 2024 † represented as Bernaya molisana Capasso, 2024 †
- Species Bernaya (Bernaya) squiresi Groves, 2011 † represented as Bernaya squiresi Groves, 2011 †
- Subgenus Bernaya (Neobernaya) F. A. Schilder, 1927 accepted as Neobernaya Schilder, 1927
- Subgenus Bernaya (Protocypraea) Schilder, 1927 † accepted as Protocypraea Schilder, 1927 †
- Species Bernaya amandula Pacaud, 2018 †
- Species Bernaya angystoma (Deshayes, 1835) †
- Species Bernaya catei F. A. Schilder, 1963 † accepted as Zoila venusta bakeri (Gatliff, 1916)
- Species Bernaya cavata (Edwards, 1865) †
- Species Bernaya chathamensis Cernohorsky, 1971 † accepted as Zoila chathamensis (Cernohorsky, 1971) †
- Species Bernaya excellens (Koenen, 1890) †
- Species Bernaya fresnoensis (F. M. Anderson, 1905) †
- Species Bernaya fultoni (G. B. Sowerby III, 1903) accepted as Afrozoila fultoni (G. B. Sowerby III, 1903)
- Species Bernaya gemmellaroi (Di Stefano, 1882) †
- Species Bernaya grovesi Squires & Demetrion, 1992 † accepted as Semicypraea grovesi (Squires & Demetrion, 1992) †
- Species Bernaya jeanae Groves, 2004 † accepted as Protocypraea jeanae (Groves, 2004) †
- Species Bernaya kaylinae Squires & Groves, 2023 †
- Species Bernaya kroisbachensis Traub, 1981 †
- Species Bernaya marcominii Dolin & Aguerre, 2016 †
- Species Bernaya media (Deshayes, 1835) †
- Species Bernaya molisana Capasso, 2024 †
- Species Bernaya obesa (Deshayes, 1865) †
- Species Bernaya peschli Traub, 1981 †
- Species Bernaya sayani †
- Species Bernaya schouveri Dolin & Aguerre, 2016 †
- Species Bernaya sixi Pacaud & Robert, 2016 †
- Species Bernaya squiresi Groves, 2011 †
- Species Bernaya teulerei (Cazenavette, 1846) accepted as Afrozoila teulerei (Cazenavette, 1846)
- Species Bernaya velaini (de Raincourt, 1877) †
- Species Bernaya vicetina Zamberlan & Checchi, 2014 †
- Species Bernaya zoiloides F. A. Schilder, 1958 †
- Genus Garviea Dolin & Dockery, 2018 † (2)
- Genus Gisortia Jousseaume, 1884 † (4)
- Genus Mandolina Jousseaume, 1884 † (2)
- Genus Megalocypraea F. A. Schilder, 1927 † accepted as Gisortia Jousseaume, 1884 †
- Genus Megalocypraea Schilder, 1927 † accepted as Gisortia Jousseaume, 1884 †
- Genus Palaeocypraea F. A. Schilder, 1928 † (5)
- Genus Protocypraea Schilder, 1927 † (14)
- Genus Pseudogisortia Schilder, 1941 † accepted as Gisortia Jousseaume, 1884 †
- Genus Vicetia Fabiani, 1905 † (5)
- Subfamily Luriinae Schilder, 1932 (89)
- Subfamily Mandolininae Schilder, 1932 † accepted as Gisortiinae F. A. Schilder, 1927 †
- Subfamily Mauritiinae Steadman & Cotton, 1946 accepted as Mauritiini Steadman & Cotton, 1946
- Subfamily Pustulariinae Gill, 1871 (9)
- Subfamily Umbiliinae Schilder, 1932 (23)
- Subfamily Zoilinae Iredale, 1935 (35)
- Subfamily Zonariinae F. A. Schilder, 1932 (137)
- Genus Protopirula Rennie, 1930 † accepted as Cypraea Linnaeus, 1758
- Genus Sinusigera A. d'Orbigny, 1853
- Family Eocypraeidae F. A. Schilder, 1924 (74)
- Family Ovulidae J. Fleming, 1822 (391)
- Family Pediculariidae Gray, 1853 accepted as Pediculariinae Gray, 1853
- 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 (98)
- Superfamily Littorinoidea Children, 1834 (1 370)
- Superfamily Naticoidea Guilding, 1834 (687)
- 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 (2 309)
- Superfamily Stromboidea Rafinesque, 1815 (833)
- Superfamily Tonnoidea Suter, 1913 (1825) (786)
- Superfamily Truncatelloidea J. E. Gray, 1840 (6 892)
- Superfamily Vanikoroidea Gray, 1840 (1 332)
- Superfamily Velutinoidea Gray, 1840 (647)
- Superfamily Vermetoidea Rafinesque, 1815 (172)
- Superfamily Xenophoroidea Troschel, 1852 (1840) accepted as Stromboidea Rafinesque, 1815
- Order Neogastropoda (23 325)
- Order Stenoglossa accepted as Neogastropoda
- Subclass Gastropoda incertae sedis (298)
- Subclass Heterobranchia (39 106)
- Subclass Neomphaliones accepted as Vetigastropoda
- Subclass Neritimorpha (1 898)
- Subclass Orthogastropoda represented as Gastropoda
- Subclass Patellogastropoda (510)
- Subclass Prosobranchia
- Subclass Psilogastropoda represented as Gastropoda
- Subclass Vetigastropoda (6 761)
- Class Lamellibranchiata accepted as Bivalvia
- Class Loricata accepted as Polyplacophora
- Class Mollusca incertae sedis † (371)
- Class Monoplacophora (229)
- Class Pelecypoda accepted as Bivalvia
- Class Polyplacophora (1 378)
- Class Polyplaxiphora accepted as Polyplacophora
- Class Rostroconchia † (64)
- Class Scaphopoda (752)
- Class Solenoconchia accepted as Scaphopoda
- Class Solenogastres (313)
- Subclass Chaetodermomorpha accepted as Caudofoveata