MolluscaBase - browser

Mollusca (133 306)
Subphylum Aculifera
Subphylum Conchifera
Subphylum Placophora accepted as Polyplacophora
Superclass Aplacophora
Class Amphineura accepted as Aculifera
Class Bivalvia (25 080)
Class Caudofoveata (143)
Class Cephalopoda (1 921)
Class Conchifera accepted as Bivalvia
Class Cricoconarida † (1)
Class Gastropoda (103 048)
Subclass Amphigastropoda † (434)
Subclass Angiogastropoda represented as Gastropoda
Subclass Apogastropoda
Subclass Caenogastropoda (53 848)
Subclass Gastropoda incertae sedis (313)
Subclass Heterobranchia (39 231)
Infraclass "Lower Heterobranchia" (1 140)
Infraclass Euthyneura (37 504)
Subterclass Acteonimorpha (413)
Subterclass Ringipleura (2 917)
Subterclass Tectipleura (34 174)
Superorder Acochlidiimorpha (48)
Superorder Ascoglossa accepted as Sacoglossa
Superorder Basommatophora accepted as Hygrophila
Superorder Eupulmonata (25 629)
Order Aillyida accepted as Achatinina
Order Ellobiida (579)
Order Gymnomorpha accepted as Systellommatophora
Order Stylommatophora (24 826)
Suborder Achatinina (2 912)
Suborder Elasmognatha accepted as Succineoidei
Suborder Helicina (21 674)
Suborder Orthurethra accepted as Pupilloidei
Suborder Scolodontina (165)
Superfamily Scolodontoidea H. B. Baker, 1925 (165)
Family Scolodontidae H. B. Baker, 1925 (165)
Subfamily Scolodontinae H. B. Baker, 1925 (118)
Subfamily Tamayoinae Tillier, 1980 (39)
Genus Keranella Roosen, Salvador & Breure, 2025 (2)
Genus Ophiogyra Albers, 1850 accepted as Polygyratia J. E. Gray, 1847
Genus Polygyratia J. E. Gray, 1847 (1)
Subgenus Polygyratia (Polygyratia) J. E. Gray, 1847 accepted as Polygyratia J. E. Gray, 1847
Species Polygyratia (Polygyratia) charybdis (Mörch, 1852) accepted as Polygyratia polygyrata (Born, 1778)
Species Polygyratia (Polygyratia) polygyrata (Born, 1778) accepted as Polygyratia polygyrata (Born, 1778)
Subgenus Polygyratia (Ridleya) Ancey, 1901 accepted as Ridleyconcha Christensen, 2020
Species Polygyratia affinis Pilsbry, 1900 accepted as Systrophia affinis (Pilsbry, 1900)
Species Polygyratia charybdis (Mörch, 1852) accepted as Polygyratia polygyrata (Born, 1778)
Species Polygyratia heligmoida (A. d'Orbigny, 1835) accepted as Systrophia heligmoida (A. d'Orbigny, 1835)
Species Polygyratia polygyrata (Born, 1778)
Species Polygyratia reyrei (Souverbie, 1858) accepted as Entodina reyrei (Souverbie, 1858)
Species Polygyratia sargenti Pilsbry, 1900 accepted as Systrophia sargenti (Pilsbry, 1900)
Species Polygyratia stenostrepta (L. Pfeiffer, 1857) accepted as Systrophia stenostrepta (L. Pfeiffer, 1856)
Genus Ridleya Ancey, 1901 accepted as Ridleyconcha Christensen, 2020
Genus Ridleyconcha Christensen, 2020 (1)
Genus Smenodonta Roosen, Salvador & Breure, 2025 (1)
Genus Xenodiscula Pilsbry, 1919 (3)
Suborder Sigmurethra accepted as Helicina
Suborder Stylommatophora incertae sedis (75)
Order Systellommatophora (224)
Superorder Hygrophila (2 008)
Superorder Pneumopulmonata
Superorder Pylopulmonata (4 286)
Superorder Sacoglossa (391)
Superorder Siphonarimorpha (163)
Order Anaspidea accepted as Aplysiida
Order Aplysiida (101)
Order Aplysiomorpha accepted as Aplysiida
Order Archaeopulmonata accepted as Siphonarioidea Gray, 1827
Order Bullomorpha accepted as Cephalaspidea
Order Cephalaspidea (1 039)
Order Heterostropha accepted as Pyramidellidae J. E. Gray, 1840
Order Pteropoda (414)
Order Runcinacea accepted as Runcinida
Order Runcinida (80)
Order Tectibranchiata
Order Thecosomata
Order Umbraculida (15)
Superorder Euthyneura incertae sedis
Infraclass Heterobranchia incertae sedis (478)
Infraclass Mesoneura (109)
Infraclass Opisthobranchia
Infraclass Pulmonata
Subclass Neomphaliones accepted as Vetigastropoda
Subclass Neritimorpha (1 916)
Subclass Orthogastropoda represented as Gastropoda
Subclass Patellogastropoda (517)
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 (754)
Class Solenoconchia accepted as Scaphopoda
Class Solenogastres (313)
Subclass Chaetodermomorpha accepted as Caudofoveata