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)
- Superfamily Ampullarioidea Gray, 1824 (250)
- Superfamily Cyclophoroidea J. E. Gray, 1847 (3 904)
- Family Aciculidae J. E. Gray, 1850 (103)
- Family Acmeidae Pollonera, 1905 accepted as Aciculidae J. E. Gray, 1850
- Family Alycaeidae W. T. Blanford, 1864 accepted as Alycaeinae W. T. Blanford, 1864
- Family Bolaniidae Wenz, 1915 accepted as Craspedopomatidae Kobelt & Möllendorff, 1898
- Family Cochlostomatidae Kobelt, 1902 (118)
- Family Craspedopomatidae Kobelt & Möllendorff, 1898 (21)
- Family Cyclophoridae J. E. Gray, 1847 (1 604)
- Family Cytoridae Climo, 1969 accepted as Liareinae A. W. B. Powell, 1946
- Family Dicristidae A. N. Golikov & Starobogatov, 1975 accepted as Neocyclotidae Kobelt & Möllendorff, 1897
- Family Diplommatinidae L. Pfeiffer, 1856 (1 026)
- Subfamily Diplommatininae L. Pfeiffer, 1856 (580)
- Genus Adelopoma Doering, 1885 (11)
- Genus Arinia H. Adams & A. Adams, 1856 (68)
- Subgenus Arinia (Arinia) H. Adams & A. Adams, 1856 represented as Arinia H. Adams & A. Adams, 1856
- Species Arinia (Arinia) calathiscus Quadras & Möllendorff, 1895 represented as Arinia calathiscus Quadras & Möllendorff, 1895
- Species Arinia (Arinia) chrysacme Möllendorff, 1895 represented as Arinia chrysacme Möllendorff, 1895
- Species Arinia (Arinia) cuspidata Möllendorff, 1894 represented as Arinia cuspidata Möllendorff, 1894
- Species Arinia (Arinia) cylindrus Quadras & Möllendorff, 1895 accepted as Arinia scalatella cylindrus Quadras & Möllendorff, 1895
- Species Arinia (Arinia) dichroa Möllendorff, 1895 represented as Arinia dichroa Möllendorff, 1895
- Species Arinia (Arinia) egregia (Hedley & Musson, 1892) accepted as Glyptopupoides egregius (Hedley & Musson, 1892)
- Species Arinia (Arinia) gibbosula Möllendorff, 1895 represented as Arinia gibbosula Möllendorff, 1895
- Species Arinia (Arinia) manopleuris Quadras & Möllendorff, 1896 represented as Arinia manopleuris Quadras & Möllendorff, 1896
- Species Arinia (Arinia) minor (G. B. Sowerby I, 1843) represented as Arinia minor (G. B. Sowerby I, 1843)
- Species Arinia (Arinia) ovulum Möllendorff, 1896 represented as Arinia ovulum Möllendorff, 1896
- Species Arinia (Arinia) pallida Möllendorff, 1896 represented as Arinia pallida Möllendorff, 1896
- Species Arinia (Arinia) scalatella Dohrn, 1862 represented as Arinia scalatella Dohrn, 1862
- Species Arinia (Arinia) tablasensis (Hidalgo, 1888) represented as Arinia tablasensis (Hidalgo, 1888)
- Subgenus Arinia (Euarinia) Kobelt & Möllendorff, 1898 accepted as Arinia H. Adams & A. Adams, 1856
- Subgenus Arinia (Leucarinia) Möllendorff, 1893 represented as Arinia H. Adams & A. Adams, 1856
- Subgenus Arinia (Notharinia) Vermeulen, Phung & Truong, 2007 accepted as Notharinia Vermeulen, Phung & Truong, 2007
- Species Arinia angduensis Maassen, 2006
- Species Arinia ascotrochus Vermeulen, 1996
- Species Arinia attenuata (Vermeulen, Phung & Truong, 2007) accepted as Notharinia attenuata Vermeulen, Phung & Truong, 2007
- Species Arinia bantimurungensis Maassen, 2003
- Species Arinia bathyodon Vermeulen & Khalik, 2022
- Species Arinia biplicata Vermeulen, 1996
- Species Arinia blanda E. A. Smith, 1897
- Species Arinia boreoborneensis Vermeulen, 1996
- Species Arinia borneensis E. A. Smith, 1893
- Species Arinia boucheti Páll-Gergely, 2018
- Species Arinia brevior (Vermeulen, Phung & Truong, 2007) accepted as Notharinia brevior Vermeulen, Phung & Truong, 2007
- Species Arinia brevispira Vermeulen, 1996
- Species Arinia calathiscus Quadras & Möllendorff, 1895
- Species Arinia cathaicola Pilsbry, 1934
- Species Arinia chejuensis O.-K. Kwon & J.-S. Lee, 1991
- Species Arinia chrysacme Möllendorff, 1895
- Species Arinia clausa Vermeulen, 1996
- Species Arinia congener Vermeulen & Khalik, 2022
- Species Arinia contracta Quadras & Möllendorff, 1895
- Species Arinia costata Möllendorff, 1887
- Species Arinia crassilabris (Vermeulen, Phung & Truong, 2007) accepted as Notharinia crassilabris Vermeulen, Phung & Truong, 2007
- Species Arinia crassiventris B. Rensch, 1931
- Species Arinia cuspidata Möllendorff, 1894
- Species Arinia cylindrica Vermeulen, 1996
- Species Arinia cylindrus Quadras & Möllendorff, 1895 accepted as Arinia scalatella cylindrus Quadras & Möllendorff, 1895
- Species Arinia dentifera Vermeulen, 1996
- Species Arinia devians Möllendorff, 1887
- Species Arinia dichroa Möllendorff, 1895
- Species Arinia dilatata Maassen, 2003
- Species Arinia dioryx Vermeulen, 1996
- Species Arinia distanciae Nicolas, 1891 †
- Species Arinia distorta Vermeulen, 1996
- Species Arinia ferecognita Vermeulen, 1996
- Species Arinia gibbosula Möllendorff, 1895
- Species Arinia hoeksemai Maassen, 2003
- Species Arinia holopleuris Möllendorff, 1887 accepted as Arinia minus holopleuris Möllendorff, 1887
- Species Arinia inexpectans Solem, 1964
- Species Arinia japonica Pilsbry & Y. Hirase, 1903
- Species Arinia jensi Maassen, 2001
- Species Arinia kessneri Maassen, 2003
- Species Arinia linnei (Maassen, 2008) accepted as Notharinia linnei Maassen, 2008
- Species Arinia loumboensis Maassen, 2006
- Species Arinia manggaraica B. Rensch, 1931 accepted as Palaina manggaraica (B. Rensch, 1931)
- Species Arinia manopleuris Quadras & Möllendorff, 1896
- Species Arinia maolanensis W.-H. Zhang, D.-N. Chen & W.-C. Zhou, 2013 accepted as Sinoarinia maolanensis (W.-H. Zhang, D.-N. Chen & W.-C. Zhou, 2013)
- Species Arinia micro Marzuki & Foon, 2016
- Species Arinia minahassae Kobelt, 1897
- Species Arinia minor (G. B. Sowerby I, 1843) accepted as Arinia minus (G. B. Sowerby I, 1843)
- Species Arinia minus (G. B. Sowerby I, 1843)
- Species Arinia minutior Möllendorff, 1894
- Species Arinia minutissima Möllendorff, 1887
- Species Arinia mirifica Y. Li, W.-C. Zhou & T.-C. Luo, 2005 accepted as Sinoarinia mirifica (Y. Li, W.-C. Zhou & T.-C. Luo, 2005)
- Species Arinia obesa Vermeulen, 1996
- Species Arinia oviformis Vermeulen, 1996
- Species Arinia ovulum Möllendorff, 1896
- Species Arinia palainaeformis B. Rensch, 1931
- Species Arinia pallida Möllendorff, 1896
- Species Arinia panhai Maassen, 2001 accepted as Plectostoma panhai (Maassen, 2001)
- Species Arinia paricostata Vermeulen, 1996
- Species Arinia patagiata van Benthem Jutting, 1958
- Species Arinia pertusa Vermeulen, 1996
- Species Arinia plagiostoma Möllendorff, 1894
- Species Arinia pseudopomatias (Gredler, 1902)
- Species Arinia saeperobustior Vermeulen, 1996
- Species Arinia scalatella Dohrn, 1862
- Species Arinia semiconica Vermeulen & Khalik, 2022
- Species Arinia similis E. A. Smith, 1893
- Species Arinia simplex Vermeulen, 1996
- Species Arinia sinulabris Möllendorff, 1894
- Species Arinia sowerbyi (L. Pfeiffer, 1852) accepted as Arinia minor (G. B. Sowerby I, 1843)
- Species Arinia stenotrochus Vermeulen, 1996
- Species Arinia streptaxiformis Vermeulen, 1996
- Species Arinia strophostoma Vermeulen, 1996
- Species Arinia tablasensis (Hidalgo, 1888)
- Species Arinia talautana (Fulton, 1899)
- Species Arinia tjendanae B. Rensch, 1931
- Species Arinia toradjensis Maassen, 2003
- Species Arinia turgida Vermeulen, 1996
- Species Arinia valkenburgi Vermeulen, 1996
- Species Arinia wasupondensis Maassen, 2003
- Species Arinia yanseni Nurinsiyah & Hausdorf, 2017
- Genus Diplommatina W. H. Benson, 1849 (433)
- Genus Euadnita Iredale, 1941 accepted as Diplommatina (Sinica) Möllendorff, 1885
- Genus Euarinia Kobelt & Möllendorff, 1898 accepted as Arinia H. Adams & A. Adams, 1856
- Genus Gyrostropha Ancey, 1887 accepted as Opisthostoma W. T. Blanford & H. F. Blanford, 1860
- Genus Opisthostoma W. T. Blanford & H. F. Blanford, 1860 (68)
- Genus Pseudopalaina Möllendorff, 1897 accepted as Diplommatina W. H. Benson, 1849
- Subfamily Laotiinae Páll-Gergely, 2024 (5)
- Genus Anostomella E. von Martens, 1867 accepted as Palaina O. Semper, 1865
- Genus Cardiostoma F. Sandberger, 1870 † (2)
- Genus Cylindropalaina Möllendorff, 1897 accepted as Palaina O. Semper, 1865
- Genus Diancta E. von Martens, 1864 (24)
- Genus Eclogarinia Wenz, 1939 (1)
- Genus Eclogarinia Iredale, 1933 accepted as Eclogarinia Wenz, 1939
- Genus Entypogyra Hrubesch, 1965 † (1)
- Genus Eudiplommatina Kobelt & Möllendorff, 1898 accepted as Diplommatininae L. Pfeiffer, 1856
- Genus Eupalaina Kobelt & Möllendorff, 1898 accepted as Palaina (Eupalaina) Kobelt & Möllendorff, 1898
- Genus Euthema T. Yu, B. Wang & H. Pan, 2018 † (8)
- Genus Fermepalaina Iredale, 1945 (2)
- Genus Gastroptychia Kobelt & Möllendorff, 1900 (11)
- Genus Geothauma Crosse, 1893 accepted as Plectostoma H. Adams, 1865
- Genus Habeastrum Simone, 2019 (3)
- Genus Helicomorpha Möllendorff, 1890 (9)
- Genus Hungerfordia R. H. Beddome, 1889 (41)
- Genus Kontschania Páll-Gergely & Grego, 2020 (1)
- Genus Luzonocoptis Páll-Gergely & Hunyadi, 2017 (2)
- Genus Macropalaina Möllendorff, 1897 accepted as Palaina O. Semper, 1865
- Genus Moderata Páll-Gergely, 2020 (1)
- Genus Moussonia O. Semper, 1865 (24)
- Genus Niahia Vermeulen, 1996 (1)
- Genus Nicida W. T. Blanford, 1868 (14)
- Genus Notharinia Vermeulen, Phung & Truong, 2007 (12)
- Genus Occidentina Harzhauser & Neubauer, 2018 † (2)
- Genus Palaina O. Semper, 1865 (180)
- Genus Paleodiplommatina D. A. Bullis, Herhold, Czekanski-Moir, Grimaldi & Rundell, 2020 † accepted as Euthema T. Yu, B. Wang & H. Pan, 2018 †
- Genus Palmatina Iredale, 1944 (3)
- Genus Paradiancta Möllendorff, 1895 (1)
- Genus Paxillus H. Adams & A. Adams, 1851 accepted as Gastroptychia Kobelt & Möllendorff, 1900
- Genus Plectostoma H. Adams, 1865 (82)
- Genus Pseudonicida Hrubesch, 1965 † (1)
- Genus Pugnellia Oppenheim, 1895 † (1)
- Genus Pulchraspira T. Yu, Salvador & Jarzembowski, 2021 † (1)
- Genus Pupoidea Pease, 1865 accepted as Palaina O. Semper, 1865
- Genus Sinoarinia Z.-Y. Chen & M. Wu, 2020 (4)
- Genus Sohtsuia Z.-Y. Chen, 2023 (1)
- Genus Styx Oppenheim, 1895 † (1)
- Genus Velepalaina Iredale, 1937 (5)
- Genus Whittenia T.-S. Liew & Clements, 2020 (2)
- Family Ferussinidae Wenz, 1923 (1915) † accepted as Ferussininae Wenz, 1923 (1915) †
- Family Hainesiidae Thiele, 1929 (220)
- Family Lagocheilidae Stoliczka, 1872 accepted as Cyclophoridae J. E. Gray, 1847
- Family Maizaniidae Tielecke, 1940 (40)
- Family Megalomastomatidae W. T. Blanford, 1864 (100)
- Family Megalostomatidae [sic] accepted as Megalomastomatidae W. T. Blanford, 1864
- Family Neocyclotidae Kobelt & Möllendorff, 1897 (242)
- Family Pupinidae L. Pfeiffer, 1853 (427)
- Family Strophostomatidae Wenz, 1915 † accepted as Ferussininae Wenz, 1923 (1915) †
- Genus Carinomphalus W. Yü, 1974 † (1)
- Genus Diplommoptychia Maillard, 1884 †
- Genus Loriolina Huckriede, 1967 † (1)
- Genus Maillardinus Bandel, 1991 † (1)
- Superfamily Viviparoidea Gray, 1847 (764)
- Order Caenogastropoda incertae sedis (7 676)
- Order Littorinimorpha (17 179)
- Order Neogastropoda (23 716)
- 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