Between brackets is the number of accepted species
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- Mollusca (132 848)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (25 011)
- Class Caudofoveata (143)
- Class Cephalopoda (1 834)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 752)
- Subclass Amphigastropoda † (396)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (53 669)
- Subclass Gastropoda incertae sedis (308)
- Subclass Heterobranchia (39 172)
- Infraclass "Lower Heterobranchia" (1 137)
- Infraclass Euthyneura (37 449)
- Subterclass Acteonimorpha (411)
- Subterclass Ringipleura (2 917)
- Subterclass Tectipleura (34 121)
- Superorder Acochlidiimorpha (48)
- Superorder Ascoglossa accepted as Sacoglossa
- Superorder Basommatophora accepted as Hygrophila
- Superorder Eupulmonata (25 585)
- Order Aillyida accepted as Achatinina
- Order Ellobiida (579)
- Order Gymnomorpha accepted as Systellommatophora
- Order Stylommatophora (24 782)
- Suborder Achatinina (2 912)
- Suborder Elasmognatha accepted as Succineoidei
- Suborder Helicina (21 630)
- Infraorder Arionoidei (140)
- Infraorder Clausilioidei (1 859)
- Infraorder Helicina incertae sedis (3 210)
- Superfamily Coelociontoidea Iredale, 1937 (5)
- Superfamily Papillodermatoidea Wiktor, R. Martin & Castillejo, 1990 (1)
- Superfamily Plectopyloidea Möllendorff, 1898 (144)
- Superfamily Punctoidea E. S. Morse, 1864 (1 789)
- Family Charopidae F. W. Hutton, 1884 (1 118)
- Subfamily Charopinae F. W. Hutton, 1884 (577)
- Genus Acanthoptyx Ancey, 1888 (2)
- Genus Acheronopa Hyman & J. Stanisic, 2005 (1)
- Genus Aeschrodomus Pilsbry, 1892 (1)
- Genus Albiropa Holcroft & J. Stanisic, 2018 (1)
- Genus Allocharopa Iredale, 1937 accepted as Elsothera Iredale, 1933
- Genus Amfractaropa Holcroft, 2018 (2)
- Genus Andrefrancia Solem, 1960 (56)
- Genus Annoselix Iredale, 1939 (1)
- Genus Ba Solem, 1983 (1)
- Genus Ballena Iredale, 1944 accepted as Pseudocharopa Peile, 1929
- Genus Barringtonica Shea, Colgan & J. Stanisic, 2012 (2)
- Genus Bindiropa J. Stanisic, 2022 (1)
- Genus Biomphalopa J. Stanisic, 1990 (3)
- Genus Bischoffena Iredale, 1937 (1)
- Genus Burwellia Holcroft & J. Stanisic, 2018 (1)
- Genus Cancellocochlea Shea, Colgan & J. Stanisic, 2012 (2)
- Genus Cavellia Iredale, 1915 (18)
- Genus Cavellioropa Dell, 1952 (5)
- Genus Charopa E. von Martens, 1860 (18)
- Genus Charopatagonia Miquel & G. M. Barker, 2023 (5)
- Genus Charopella Iredale, 1944 (2)
- Genus Chaureopa Climo, 1985 (9)
- Genus Coenocharopa J. Stanisic, 1990 (8)
- Genus Comboynea Shea, Colgan & J. Stanisic, 2012 (4)
- Genus Comularopa Holcroft, 2018 (2)
- Genus Coricudgia Hyman & J. Stanisic, 2005 (1)
- Genus Corinomala Iredale, 1939 (8)
- Genus Cralopa Iredale, 1941 (2)
- Genus Cryptocharopa Preston, 1913 (1)
- Genus Cumberlandica Shea, Colgan & J. Stanisic, 2012 (3)
- Genus Danielleilona J. Stanisic, 1993 (2)
- Genus Deceptrena Iredale, 1944 accepted as Pseudocharopa Peile, 1929
- Genus Decoriropa Hyman & J. Stanisic, 2005 (1)
- Genus Dentherona Iredale, 1933 (1)
- Genus Dictyoropa Shea, Colgan & J. Stanisic, 2012 (1)
- Genus Diphyoropa Hyman & J. Stanisic, 2005 (4)
- Genus Dipnelix Iredale, 1937 (2)
- Genus Discocharopa Iredale, 1913 (7)
- Genus Dividospiralia J. Stanisic, 2010 (1)
- Genus Dupucharopa Iredale, 1937 (1)
- Genus Egestula Iredale, 1915 (5)
- Genus Egilodonta Iredale, 1937 (5)
- Genus Egilomen Iredale, 1937 (2)
- Genus Elsothera Iredale, 1933 (9)
- Genus Epinicium Iredale, 1939 (1)
- Genus Eungellaropa Holcroft & J. Stanisic, 2018 (1)
- Genus Excaliburopa J. Stanisic, 2010 (4)
- Genus Excellaoma Iredale, 1937 (4)
- Genus Fectola Iredale, 1915 (11)
- Genus Frustropa Iredale, 1945 (1)
- Genus Gallodema Iredale, 1941 accepted as Paryphantopsis Thiele, 1928
- Genus Geminoropa Kershaw, 1955 (2)
- Genus Gerontia F. W. Hutton, 1882 (1)
- Genus Gouldiropa Hyman & J. Stanisic, 2005 (1)
- Species Gouldiropa carlessi (J. Stanisic, 1990)
- Genus Goweroconcha Iredale, 1944 (6)
- Genus Graeffedon Solem, 1983 (3)
- Genus Groveiana J. Stanisic, 2018 (1)
- Genus Gyrocochlea Hedley, 1924 (23)
- Genus Gyropena Iredale, 1944 accepted as Goweroconcha Iredale, 1944 (1)
- Genus Hedleyoconcha Pilsbry, 1893 (3)
- Genus Hedleyropa Hyman & J. Stanisic, 2005 (1)
- Genus Hirsutaropa Holcroft & J. Stanisic, 2018 (1)
- Genus Howeinsulea Peile, 1929 accepted as Pseudocharopa Peile, 1929
- Genus Huntiana J. Stanisic, 2018 (2)
- Genus Hyaloropa J. Stanisic, 2018 (1)
- Genus Illonesta Iredale, 1941 accepted as Paryphantopsis Thiele, 1928
- Genus Insularopa J. Stanisic, 2018 (1)
- Genus Insullaoma Iredale, 1937 (2)
- Genus Isolderopa J. Stanisic, 2010 (7)
- Genus Kannaropa Iredale, 1937 (1)
- Genus Kermodon Iredale, 1945 (1)
- Genus Koreelahropa J. Stanisic, 2010 (2)
- Genus Kosciuszkoropa J. Stanisic, 2018 (1)
- Genus Lacuropa J. Stanisic, 2018 (1)
- Genus Lagivala Solem, 1983 (6)
- Genus Lauopa Solem, 1983 (1)
- Genus Lenwebbia J. Stanisic, 1990 (3)
- Genus Letomola Iredale, 1941 (2)
- Genus Leurocochlea J. Stanisic, 2010 (2)
- Genus Lidgbirdia Iredale, 1944 accepted as Pseudocharopa Peile, 1929
- Genus Luinodiscus Iredale, 1937 (3)
- Genus Luturopa J. Stanisic, 2010 (3)
- Genus Maafu Solem, 1983 (1)
- Genus Macleayropa J. Stanisic, 2010 (3)
- Genus Macphersonea Shea, Colgan & J. Stanisic, 2012 (1)
- Genus Macrophallikoropa Hyman & J. Stanisic, 2005 (3)
- Genus Marilyniropa Hyman & J. Stanisic, 2005 (1)
- Genus Meredithena J. Stanisic, 2018 (2)
- Genus Metaropa J. Stanisic, 2018 (1)
- Genus Micromphalia Ancey, 1882 (3)
- Genus Minutiropa J. Stanisic, 2018 (1)
- Genus Mocella Iredale, 1915 (5)
- Genus Monomphalus Ancey, 1882 (5)
- Genus Mulathena B. J. Smith & Kershaw, 1985 (1)
- Genus Mussonula Iredale, 1937 (2)
- Genus Mystivagor Iredale, 1944 accepted as Pseudocharopa Peile, 1929 (1)
- Genus Nanoropa J. Stanisic, 2018 (1)
- Genus Nautiliropa J. Stanisic, 1990 (1)
- Genus Neoparyphantopsis Miquel & Araya, 2015 (1)
- Genus Ngairea J. Stanisic, 1990 (5)
- Genus Nodularopa Holcroft, 2018 (1)
- Genus Norfolcioconcha Preston, 1913 (3)
- Genus Notodiscus Thiele, 1931 (1)
- Genus Nullarboropa J. Stanisic, 2018 (1)
- Genus Omphaloropa J. Stanisic, 1990 (2)
- Genus Oreokera J. Stanisic, 1987 (2)
- Genus Oreomava Kershaw, 1956 (3)
- Genus Papulaoma Iredale, 1941 (1)
- Genus Paracharopa Climo, 1983 (6)
- Genus Pararhytida Ancey, 1882 (6)
- Genus Paratrochus Pilsbry, 1893 (2)
- Genus Parvicharopa Solem, 1958 (2)
- Genus Paryphantopsis Thiele, 1928 (27)
- Genus Patulopsis Suter, 1892 accepted as Suteria Pilsbry, 1892
- Genus Penescosta Iredale, 1944 (5)
- Genus Pereduropa J. Stanisic, 2010 (4)
- Genus Pernagera Iredale, 1939 (2)
- Genus Phenacharopa Pilsbry, 1893 (2)
- Genus Pillomena Iredale, 1937 (1)
- Genus Pilsbrycharopa Solem, 1958 accepted as Corinomala Iredale, 1939
- Genus Planilaoma Iredale, 1937 (1)
- Genus Planorbacochlea Shea, Colgan & J. Stanisic, 2012 (10)
- Genus Platyrhytida T. D. A. Cockerell, 1895 (5)
- Genus Plesiopsis Ancey, 1888 (1)
- Genus Protractiropa J. Stanisic, 2018 (2)
- Genus Pseudegestula Dell, 1954 (3)
- Genus Pseudocharopa Peile, 1929 (4)
- Genus Pulcharopa Iredale, 1944 accepted as Goweroconcha Iredale, 1944
- Genus Pulchridomus Climo, 1980 (1)
- Genus Radiolaropa Holcroft, 2018 (2)
- Genus Reticharopa Solem, 1959 (4)
- Genus Rhophodon Hedley, 1924 (12)
- Genus Rhytidopsis Ancey, 1882 (5)
- Genus Richardsoniana J. Stanisic, 2010 (1)
- Genus Richmondaropa Shea, Colgan & J. Stanisic, 2012 (2)
- Genus Robinsoniana J. Stanisic, 2018 (1)
- Genus Roblinella Iredale, 1937 (1)
- Genus Saissetia Ancey, 1888 accepted as Platyrhytida T. D. A. Cockerell, 1895
- Genus Setomedea Iredale, 1941 (5)
- Genus Setoturbinata J. Stanisic, 2010 (1)
- Genus Sharniropa Hyman & J. Stanisic, 2005 (3)
- Genus Shearopa J. Stanisic, 2010 (2)
- Genus Simplicaria Mousson, 1891 accepted as Charopa E. von Martens, 1860
- Genus Sinployea Solem, 1983 (51)
- Genus Spiraliropa J. Stanisic, 2010 (1)
- Genus Stanisicaropa Holcroft, 2018 (2)
- Genus Stenacapha B. J. Smith & Kershaw, 1985 (1)
- Genus Stephadiscus Hylton Scott, 1981 (6)
- Genus Suteria Pilsbry, 1892 (2)
- Genus Tasmanoropa Bonham, 2018 (1)
- Genus Tasmathera Bonham, 2018 (3)
- Genus Tateropa J. Stanisic, 2018 (1)
- Genus Teracharopa Maassen, 2000 (3)
- Genus Tesseraria O. Boettger, 1881 accepted as Phenacharopa Pilsbry, 1893
- Genus Thera F. W. Hutton, 1883 accepted as Aeschrodomus Pilsbry, 1892
- Genus Thryasona B. J. Smith & Kershaw, 1985 (1)
- Genus Tristanoropa Holcroft, 2018 (9)
- Genus Tropidotropis Ancey, 1888 (1)
- Genus Tuimalila Solem, 1983 (2)
- Genus Vatusila Solem, 1983 (6)
- Genus Whissonia J. Stanisic, 2018 (1)
- Genus Whitcochlea Holcroft, 2018 (1)
- Genus Whiteheadia Hyman & J. Stanisic, 2005 (1)
- Genus Xenoropa Holcroft, 2018 (1)
- Genus Ygernaropa J. Stanisic, 2010 (2)
- Subfamily Flammoconchinae Schileyko, 2001 (12)
- Subfamily Flammulininae Crosse, 1895 (18)
- Subfamily Otoconchinae T. D. A. Cockerell, 1893 (4)
- Subfamily Phenacohelicinae Suter, 1892 (70)
- Subfamily Ranfurlyinae Schileyko, 2001 (1)
- Subfamily Rotadiscinae H. B. Baker, 1927 (82)
- Subfamily Semperdoninae Solem, 1983 (10)
- Subfamily Therasiinae A. A. Schileyko, 2001 (24)
- Subfamily Thysanotinae Godwin-Austen, 1907 (78)
- Subfamily Trachycystinae Schileyko, 1986 (163)
- Subfamily Trukcharopinae Solem, 1983 (11)
- Genus Alpiniropa J. Stanisic, 2018 (1)
- Genus Amatholedonta D. G. Herbert, 2020 (2)
- Genus Ammoniropa Bonham, 2018 (1)
- Genus Arcadiaropa J. Stanisic, 2020 (1)
- Genus Archiropa Bonham, 2018 (1)
- Genus Austellorien J. Stanisic, 2018 (1)
- Genus Banjoropa J. Stanisic, 2018 (1)
- Genus Biomphalodonta D. G. Herbert, 2020 (1)
- Genus Bonhamaropa J. Stanisic, 2018 (3)
- Genus Brigaloropa J. Stanisic, 2020 (1)
- Genus Carnaropa J. Stanisic, 2020 (2)
- Genus Chordaropa J. Stanisic, 2016 (1)
- Genus Cineropa J. Stanisic, 2020 (2)
- Genus Climocella Goulstone, 1996 (21)
- Genus Colhueconus Miquel & Bellosi, 2010 † (1)
- Genus Costulodonta D. G. Herbert, 2020 (5)
- Genus Dendropa B. A. Marshall & Worthy, 2017 (2)
- Genus Eddiea J. Stanisic, 2020 (4)
- Genus Exquisitiropa J. Stanisic, 2018 (1)
- Genus Gadoropa Bonham, 2018 (1)
- Genus Geminoropa Iredale, 1933 accepted as Geminoropa Kershaw, 1955
- Genus Iterodonta D. G. Herbert, 2020 (1)
- Genus Kessneropa Bonham, 2018 (1)
- Genus Lithocouperia J. Stanisic, 2016 (1)
- Genus Lorelleia J. Stanisic, 2018 (1)
- Genus Lottaropa Bonham, 2018 (1)
- Genus Oreokera Iredale, 1941 accepted as Oreokera J. Stanisic, 1987
- Genus Patagocharopa Miquel & P. E. Rodriguez, 2016 † (1)
- Genus Phialodonta D. G. Herbert, 2020 (6)
- Genus Platyumbiropa J. Stanisic, 2020 (2)
- Genus Queridomus Iredale, 1937 accepted as Thysanota Albers, 1860
- Genus Reticularopa J. Stanisic, 2016 (1)
- Family Cystopeltidae T. D. A. Cockerell, 1891 (34)
- Family Dipnelicidae Iredale, 1937 accepted as Charopidae F. W. Hutton, 1884
- Family Discidae Thiele, 1931 (1866) (91)
- Family Endodontidae Pilsbry, 1895 (225)
- Family Flammulinidae Crosse, 1895 accepted as Flammulininae Crosse, 1895
- Family Gonyodiscidae A. J. Wagner, 1928 accepted as Discidae Thiele, 1931 (1866)
- Family Hedleyoconchidae Iredale, 1942 accepted as Charopidae F. W. Hutton, 1884
- Family Helicodiscidae Pilsbry, 1927 (37)
- Family Laomidae Suter, 1913 accepted as Punctidae E. S. Morse, 1864
- Family Oopeltidae T. D. A. Cockerell, 1891 (11)
- Family Oreohelicidae Pilsbry, 1939 (68)
- Family Paralaomidae Iredale, 1941 accepted as Punctidae E. S. Morse, 1864
- Family Patulastridae Steenberg, 1925 accepted as Punctidae E. S. Morse, 1864
- Family Patulidae Tryon, 1866 accepted as Discidae Thiele, 1931 (1866)
- Family Phenacohelicidae Suter, 1892 accepted as Charopinae F. W. Hutton, 1884
- Family Pseudocharopidae Iredale, 1944 accepted as Charopidae F. W. Hutton, 1884
- Family Punctidae E. S. Morse, 1864 (203)
- Family Trachycystidae Schileyko, 1986 accepted as Trachycystinae Schileyko, 1986
- Genus Afrodontops Kadolsky, 2020 † (2)
- Superfamily Testacelloidea J. E. Gray, 1840 (20)
- Superfamily Urocoptoidea Pilsbry, 1898 (1868) (1 251)
- Infraorder Helicoidei (5 691)
- Infraorder Limacoidei (4 251)
- Infraorder Oleacinoidei (497)
- Infraorder Orthalicoidei (1 581)
- Infraorder Partuloinei accepted as Pupilloidei
- Infraorder Pupilloidei (3 436)
- Infraorder Rhytidoidei (581)
- Infraorder Sagdoinei accepted as Helicoidei
- Infraorder Succineoidei (384)
- Suborder Orthurethra accepted as Pupilloidei
- Suborder Scolodontina (165)
- Suborder Sigmurethra accepted as Helicina
- Suborder Stylommatophora incertae sedis (75)
- Order Systellommatophora (224)
- Superorder Hygrophila (2 005)
- Superorder Pneumopulmonata
- Superorder Pylopulmonata (4 285)
- 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 (1 034)
- 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 (108)
- Infraclass Opisthobranchia
- Infraclass Pulmonata
- 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
