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- Mollusca (132 888)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (25 022)
- Class Caudofoveata (143)
- Class Cephalopoda (1 838)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 777)
- Subclass Amphigastropoda † (396)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (53 684)
- Subclass Gastropoda incertae sedis (309)
- Subclass Heterobranchia (39 180)
- Infraclass "Lower Heterobranchia" (1 137)
- Infraclass Euthyneura (37 457)
- Subterclass Acteonimorpha (411)
- Subterclass Ringipleura (2 917)
- Subterclass Tectipleura (34 129)
- Superorder Acochlidiimorpha (48)
- Superorder Ascoglossa accepted as Sacoglossa
- Superorder Basommatophora accepted as Hygrophila
- Superorder Eupulmonata (25 591)
- Order Aillyida accepted as Achatinina
- Order Ellobiida (579)
- Order Gymnomorpha accepted as Systellommatophora
- Order Stylommatophora (24 788)
- Suborder Achatinina (2 912)
- Suborder Elasmognatha accepted as Succineoidei
- Suborder Helicina (21 636)
- Infraorder Arionoidei (140)
- Infraorder Clausilioidei (1 859)
- Superfamily Clausilioidea J. E. Gray, 1855 (1 859)
- Family Clausiliidae J. E. Gray, 1855 (1 762)
- Subfamily Alopiinae A. J. Wagner, 1913 (434)
- Subfamily Clausiliinae J. E. Gray, 1855 (288)
- Subfamily Cochlodininae Lindholm, 1925 accepted as Cochlodinini Lindholm, 1925 (1923)
- Subfamily Constrictinae H. Nordsieck, 1981 † (7)
- Subfamily Eualopiinae H. Nordsieck, 1978 † (30)
- Subfamily Euxininae I. M. Likharev, 1962 accepted as Clausiliinae J. E. Gray, 1855
- Subfamily Garnieriinae C. R. Boettger, 1926 (61)
- Subfamily Laminiferinae Wenz, 1923 (24)
- Subfamily Mentissoideinae Lindholm, 1924 accepted as Mentissoideini Lindholm, 1924
- Subfamily Neniinae Wenz, 1923 (14)
- Subfamily Peruiniinae H. Nordsieck, 2005 (144)
- Subfamily Phaedusinae A. J. Wagner, 1922 (758)
- Tribe Caspiophaedusini H. Nordsieck, 2007 accepted as Serrulinini Ehrmann, 1927 (2)
- Tribe Disjunctariini H. Nordsieck, 2014 † (13)
- Tribe Nordsieckiini H. Nordsieck, 2007 † (8)
- Tribe Phaedusini A. J. Wagner, 1922 (637)
- Genus Acanthophaedusa H. Nordsieck, 2007 (3)
- Genus Acrophaedusa O. Boettger, 1877 accepted as Oospira W. T. Blanford, 1872
- Genus Aprosphyma A. J. Wagner, 1920 accepted as Megalophaedusa O. Boettger, 1877
- Genus Atractophaedusa Ehrmann, 1927 (7)
- Genus Bacillophaedusa Grego & Szekeres, 2011 (1)
- Genus Bacillopheadusa Grego & Szekeres, 2011 accepted as Bacillophaedusa Grego & Szekeres, 2011
- Genus Bathyptychia Lindholm, 1925 (16)
- Genus Breviphaedusa Azuma, 1982 accepted as Stereophaedusa (Breviphaedusa) Azuma, 1982
- Genus Calcariclavis Lindholm, 1924 accepted as Phaedusa H. Adams & A. Adams, 1855
- Genus Castanophaedusa Páll-Gergely & Szekeres, 2017 (2)
- Genus Celsiphaedusa H. Nordsieck, 2001 (1)
- Genus Changphaedusa Motochin & Ueshima, 2017 (1)
- Genus Cirrophaedusa Grego & Szekeres, 2011 accepted as Oospira (Paraformosana) H. Nordsieck, 2003 (1)
- Genus Cylindrophaedusa O. Boettger, 1877 (12)
- Genus Dautzenbergiella Lindholm, 1924 (6)
- Genus Decolliphaedusa Azuma, 1982 accepted as Megalophaedusa (Tyrannophaedusa) Pilsbry, 1900
- Genus Diceratoptyx Pilsbry, 1905 accepted as Zaptyx Pilsbry, 1900
- Genus Euphaedusa O. Boettger, 1877 (34)
- Genus Falsiluna Grego & Szekeres, 2011 accepted as Miraphaedusa (Falsiluna) Grego & Szekeres, 2011
- Genus Formosana O. Boettger, 1877 (38)
- Genus Formosanella H. Nordsieck, 2003 (4)
- Genus Fuchsiana Gredler, 1887 (3)
- Genus Hemiphaedusa O. Boettger, 1877 (18)
- Subgenus Hemiphaedusa (Cylindrophaedusa) O. Boettger, 1877 accepted as Cylindrophaedusa O. Boettger, 1877
- Subgenus Hemiphaedusa (Dendrophaedusa) H. Nordsieck, 2002 represented as Hemiphaedusa O. Boettger, 1877
- Subgenus Hemiphaedusa (Hemiphaedusa) O. Boettger, 1877 represented as Hemiphaedusa O. Boettger, 1877
- Subgenus Hemiphaedusa (Hemiphaedusoides) H. Nordsieck, 2001 represented as Hemiphaedusa O. Boettger, 1877
- Subgenus Hemiphaedusa (Hemizaptyx) Pilsbry, 1905 accepted as Zaptyx (Hemizaptyx) Pilsbry, 1905
- Subgenus Hemiphaedusa (Labyrinthiphaedusa) H. Nordsieck, 2001 represented as Hemiphaedusa O. Boettger, 1877
- Subgenus Hemiphaedusa (Lindholmiella) Ehrmann, 1927 accepted as Oospira (Lindholmiella) Ehrmann, 1927
- Subgenus Hemiphaedusa (Margaritiphaedusa) H. Nordsieck, 2001 accepted as Margaritiphaedusa H. Nordsieck, 2001
- Subgenus Hemiphaedusa (Notoptychia) Ehrmann, 1927 represented as Notoptychia Ehrmann, 1927
- Subgenus Hemiphaedusa (Pinguiphaedusa) Azuma, 1982 accepted as Megalophaedusa (Pinguiphaedusa) Azuma, 1982
- Subgenus Hemiphaedusa (Placeophaedusa) Minato, 1994 accepted as Megalophaedusa (Pinguiphaedusa) Azuma, 1982
- Species Hemiphaedusa (Placeophaedusa) awajiensis (Pilsbry, 1900) accepted as Megalophaedusa (Pinguiphaedusa) awajiensis (Pilsbry, 1900)
- Species Hemiphaedusa (Placeophaedusa) expansilabris (O. Boettger, 1877) accepted as Megalophaedusa expansilabris (O. Boettger, 1877)
- Species Hemiphaedusa (Placeophaedusa) pigra (Pilsbry, 1902) accepted as Megalophaedusa (Pinguiphaedusa) pigra (Pilsbry, 1902)
- Subspecies Hemiphaedusa (Placeophaedusa) pigra carnea Kuroda & Abe, 1980 accepted as Megalophaedusa (Pinguiphaedusa) pigra carnea Kuroda & Abe, 1980
- Subspecies Hemiphaedusa (Placeophaedusa) pigra natiensis Habe, 1940 accepted as Megalophaedusa (Pinguiphaedusa) pigra natiensis (Habe, 1940)
- Subspecies Hemiphaedusa (Placeophaedusa) pigra pigra (Pilsbry, 1902) accepted as Megalophaedusa (Pinguiphaedusa) pigra pigra (Pilsbry, 1902)
- Subgenus Hemiphaedusa (Selenophaedusa) Lindholm, 1924 accepted as Selenophaedusa Lindholm, 1924
- Subgenus Hemiphaedusa (Synprosphyma) A. J. Wagner, 1920 accepted as Synprosphyma A. J. Wagner, 1920
- Species Hemiphaedusa acrostoma (Bavay & Dautzenberg, 1909)
- Species Hemiphaedusa amphileuca K.-M. Chang, 1978 accepted as Zaptyx amphileuca (K.-M. Chang, 1978)
- Species Hemiphaedusa antuensis K.-M. Chang, 1995 accepted as Zaptyx antuensis (K.-M. Chang, Tada & Ookubo, 1995)
- Species Hemiphaedusa arikangensis K.-M. Chang, 1992 accepted as Zaptyx arikangensis (K.-M. Chang, 1992)
- Species Hemiphaedusa attrita (O. Boettger, 1877) accepted as Megalophaedusa (Pinguiphaedusa) attrita (O. Boettger, 1877)
- Species Hemiphaedusa auricoma (Bavay & Dautzenberg, 1899)
- Species Hemiphaedusa babeensis (Bavay & Dautzenberg, 1899) accepted as Synprosphyma (Synprosphyma) babeensis (Bavay & Dautzenberg, 1899)
- Species Hemiphaedusa bagsana (Schmacker & O. Boettger, 1891) accepted as Zaptyx (Thaumatoptyx) bagsana (Schmacker & O. Boettger, 1891)
- Species Hemiphaedusa baibaraensis K.-M. Chang, Tada, C.-C. Hwang & Ookubo, 1998 accepted as Zaptyx (Taiwanphaedusa) baibaraensis (K.-M. Chang, Tada, C.-C. Hwang & Ookubo, 1998)
- Species Hemiphaedusa basilissa (O. Boettger & Schmacker, 1894) accepted as Synprosphyma (Synprosphyma) basilissa (O. Boettger & Schmacker, 1894)
- Species Hemiphaedusa bolovenica (Möllendorff, 1898) accepted as Oospira bolovenica (Möllendorff, 1898)
- Species Hemiphaedusa buduiensis K.-M. Chang & K. Ookubo, 1997 accepted as Zaptyx (Taiwanphaedusa) buduiensis (K.-M. Chang & Ookubo, 1997)
- Species Hemiphaedusa cambojensis (L. Pfeiffer, 1861) accepted as Loosjesia cambojensis (L. Pfeiffer, 1861)
- Species Hemiphaedusa castanea H. Nordsieck, 2012 accepted as Selenophaedusa castanea (H. Nordsieck, 2012)
- Species Hemiphaedusa cecillei (R. A. Philippi, 1847)
- Species Hemiphaedusa celsa (Gredler, 1892) accepted as Celsiphaedusa celsa (Gredler, 1892)
- Species Hemiphaedusa cervicalis (Bavay & Dautzenberg, 1909)
- Species Hemiphaedusa changi C.-C. Hwang & Tada, 2016 accepted as Zaptyx changi (C.-C. Hwang & Tada, 2016)
- Species Hemiphaedusa decurtata (Heude, 1885) accepted as Excussispira decurtata (Heude, 1885)
- Species Hemiphaedusa draesekei (Blume, 1925) accepted as Serriphaedusa draesekei (Blume, 1925)
- Species Hemiphaedusa elamellata (O. Boettger & Schmacker, 1894) accepted as Serriphaedusa elamellata (O. Boettger & Schmacker, 1894)
- Species Hemiphaedusa exilis (H. Adams, 1866) accepted as Zaptyx (Taiwanphaedusa) exilis (H. Adams, 1866)
- Species Hemiphaedusa farooqi Auffenberg & Fakhri, 1995 accepted as Cylindrophaedusa farooqi (Auffenberg & Fakhri, 1995)
- Species Hemiphaedusa fistulata (Bavay & Dautzenberg, 1909)
- Species Hemiphaedusa fortunei (L. Pfeiffer, 1852) accepted as Macrophaedusa cecillii (L. Pfeiffer, 1847)
- Species Hemiphaedusa franciscana (Möllendorff, 1885) accepted as Synprosphyma (Synprosphyma) franciscana (Möllendorff, 1885)
- Species Hemiphaedusa fraterminor (Gredler, 1892) accepted as Synprosphyma fraterminor (Gredler, 1892)
- Species Hemiphaedusa gastrodes (Möllendorff, 1901)
- Species Hemiphaedusa gastroptychia (Möllendorff, 1885) accepted as Oospira (Oospira) gastroptychia (Möllendorff, 1885)
- Species Hemiphaedusa gastrum (Möllendorff, 1901) accepted as Synprosphyma gastrum (Möllendorff, 1901)
- Species Hemiphaedusa gerlachi (Möllendorff, 1881) accepted as Oospira (Oospira) gerlachi (Möllendorff, 1881)
- Species Hemiphaedusa gochishanensis K.-M. Chang, 1999 accepted as Zaptyx (Taiwanphaedusa) gochishanensis (K.-M. Chang, 1999)
- Species Hemiphaedusa guanyangensis T.-C. Luo, D.-N. Chen & G.-Q. Zhang, 1998 accepted as Zaptyx minuta (Yen, 1939)
- Species Hemiphaedusa hemileuca (Pilsbry, 1909) accepted as Stereophaedusa hemileuca (Pilsbry, 1909)
- Species Hemiphaedusa hemmeni H. Nordsieck, 2005 accepted as Zaptyx (Taiwanphaedusa) hemmeni (H. Nordsieck, 2005)
- Species Hemiphaedusa heudeana (Möllendorff, 1882) accepted as Zaptyx (Hemizaptyx) heudeana (Möllendorff, 1882)
- Species Hemiphaedusa huberi Thach, 2016
- Species Hemiphaedusa hupeana (Gredler, 1892) accepted as Bathyptychia (Bathyptychia) hupeana (Gredler, 1892)
- Species Hemiphaedusa ilanensis H. Nordsieck, 2003 accepted as Zaptyx (Thaumatoptyx) ilanensis (H. Nordsieck, 2003)
- Species Hemiphaedusa imperatrix (O. Boettger & Schmacker, 1894) accepted as Synprosphyma (Synprosphyma) imperatrix (O. Boettger & Schmacker, 1894)
- Species Hemiphaedusa ioes (W. H. Benson, 1852) accepted as Cylindrophaedusa ios (W. H. Benson, 1852)
- Species Hemiphaedusa janshanensis K.-M. Chang & W.-L. Wu, 1979 accepted as Zaptyx exilis janshanensis (K.-M. Chang & W.-L. Wu, 1979)
- Species Hemiphaedusa kanaganensis K.-M. Chang, 1980 accepted as Zaptyx kanaganensis (K.-M. Chang, 1980)
- Species Hemiphaedusa kathmandica H. Nordsieck, 1973 accepted as Cylindrophaedusa (Montiphaedusa) kathmandica (H. Nordsieck, 1973)
- Species Hemiphaedusa kawasakii Kuroda, 1936 accepted as Megalophaedusa kawasakii (Kuroda, 1936)
- Species Hemiphaedusa kosakai Kuroda, 1941 accepted as Zaptyx (Taiwanphaedusa) kosakai (Kuroda, 1941)
- Species Hemiphaedusa kuanmini Y.-C. Lee & W.-L. Wu, 2003 accepted as Zaptyx kuanmini (Y.-C. Lee & W.-L. Wu, 2003)
- Species Hemiphaedusa kubinaga Kuroda, 1936 accepted as Megalophaedusa kubinaga (Kuroda, 1936)
- Species Hemiphaedusa kudrengerensis C.-C. Hwang & Ookubo, 2016
- Species Hemiphaedusa kuninoae Kuroda, 1936 accepted as Megalophaedusa kuninoae (Kuroda, 1936)
- Species Hemiphaedusa kyotoensis Kuroda, 1936 accepted as Megalophaedusa kyotoensis (Kuroda, 1936)
- Species Hemiphaedusa labyrinthoides (Sykes, 1898)
- Species Hemiphaedusa lemyrei (Bavay & Dautzenberg, 1899)
- Species Hemiphaedusa lini K.-M. Chang & Tada, 2000 accepted as Zaptyx (Taiwanphaedusa) lini (K.-M. Chang & Tada, 2000)
- Species Hemiphaedusa litouensis K.-M. Chang & Ookubo, 2004 accepted as Zaptyx (Taiwanphaedusa) litouensis (K.-M. Chang & Ookubo, 2004)
- Species Hemiphaedusa lushanensis K.-M. Chang & Maeda, 1982 accepted as Zaptyx (Taiwanphaedusa) lushanensis (K.-M. Chang & Maeda, 1982)
- Species Hemiphaedusa lyra (Gredler, 1887) accepted as Synprosphyma (Synprosphyma) lyra (Gredler, 1887)
- Species Hemiphaedusa maanliauensis K.-M. Chang & W.-K. Wu, 1978 accepted as Zaptyx (Taiwanphaedusa) maanliauensis (K.-M. Chang & W.-K. Wu, 1978)
- Species Hemiphaedusa macroptychia H. Nordsieck, 2007
- Species Hemiphaedusa magaensis K.-M. Chang, 1991 accepted as Zaptyx magaensis (K.-M. Chang, 1991)
- Species Hemiphaedusa margaritifera (Bavay & Dautzenberg, 1909) accepted as Margaritiphaedusa margaritifera (Bavay & Dautzenberg, 1909)
- Species Hemiphaedusa martensiana H. Nordsieck, 1973 accepted as Cylindrophaedusa (Montiphaedusa) martensiana (H. Nordsieck, 1973)
- Species Hemiphaedusa matusimai Habe, 1940 accepted as Megalophaedusa (Mundiphaedusa) kuninoae matusimai (Habe, 1940)
- Species Hemiphaedusa menglunanensis T.-C. Luo, D.-N. Chen & G.-Q. Zhang, 1998 accepted as Phaedusa bocki menglunanensis (T.-C. Luo, D.-N. Chen & G.-Q. Zhang, 1998)
- Species Hemiphaedusa minuta K.-M. Chang & Tada, 2006 accepted as Zaptyx changi (C.-C. Hwang & Tada, 2016)
- Species Hemiphaedusa minuta Yen, 1939 accepted as Zaptyx minuta (Yen, 1939)
- Species Hemiphaedusa minutus K.-M. Chang & Tada, 2006 accepted as Hemiphaedusa minuta K.-M. Chang & Tada, 2006
- Species Hemiphaedusa miyanagai Kuroda, 1936 accepted as Zaptyx stimpsoni miyanagai (Kuroda, 1936)
- Species Hemiphaedusa moellendorffiana (Heude, 1882)
- Species Hemiphaedusa moirati (Bavay & Dautzenberg, 1909) accepted as Synprosphyma moirati (Bavay & Dautzenberg, 1909)
- Species Hemiphaedusa montuosa H. Nordsieck, 2003 accepted as Zaptyx (Thaumatoptyx) montuosa (H. Nordsieck, 2003)
- Species Hemiphaedusa myersi (Schmacker & O. Boettger, 1891) accepted as Zaptyx myersi (Schmacker & O. Boettger, 1891)
- Species Hemiphaedusa nanjiangensis T.-C. Luo, D.-N. Chen & W.-C. Zhou, 2010
- Species Hemiphaedusa natiensis T. Habe, 1940 accepted as Megalophaedusa expansilabris (O. Boettger, 1877)
- Species Hemiphaedusa nigricans H. Nordsieck, 1998 accepted as Taiwanphaedusa nigricans (H. Nordsieck, 1998)
- Species Hemiphaedusa odontochila (Schmacker & O. Boettger, 1891) accepted as Zaptyx odontochila (Schmacker & O. Boettger, 1891)
- Species Hemiphaedusa ooharai H. Nordsieck, 2007
- Species Hemiphaedusa ooi Kuroda, 1941 accepted as Zaptyx (Taiwanphaedusa) ooi (Kuroda, 1941)
- Species Hemiphaedusa paradoxa (Gredler, 1883) accepted as Fuchsiana paradoxa (Gredler, 1883)
- Species Hemiphaedusa pluviatilis (W. H. Benson, 1842)
- Species Hemiphaedusa porphyrostoma (Bavay & Dautzenberg, 1909) accepted as Selenophaedusa porphyrostoma (Bavay & Dautzenberg, 1909)
- Species Hemiphaedusa potanini (Möllendorff, 1902) accepted as Phaedusa potanini Möllendorff, 1901
- Species Hemiphaedusa princeps H. Nordsieck, 2012 accepted as Selenophaedusa princeps (H. Nordsieck, 2012)
- Species Hemiphaedusa pseudoserrata Yen, 1939
- Species Hemiphaedusa pseudosheridani (Zilch, 1954) accepted as Zaptyx pseudosheridani (Zilch, 1954)
- Species Hemiphaedusa ptychochila (O. Boettger, 1877) accepted as Stereophaedusa bernardii (L. Pfeiffer, 1861)
- Species Hemiphaedusa ptycholunella H. Nordsieck, 2016
- Species Hemiphaedusa pumilio H. Nordsieck, 2003 accepted as Zaptyx (Hemizaptyx) pumilio (H. Nordsieck, 2003)
- Species Hemiphaedusa ringens (Schmacker & O. Boettger, 1890)
- Species Hemiphaedusa rustica (Heude, 1889) accepted as Margaritiphaedusa rusticana (H. Nordsieck, 1998)
- Species Hemiphaedusa rusticana H. Nordsieck, 1998 accepted as Margaritiphaedusa rusticana (H. Nordsieck, 1998)
- Species Hemiphaedusa sangpingensis T.-C. Luo & D.-N. Chen, 1997 accepted as Oospira phyllostoma (Heude, 1888)
- Species Hemiphaedusa sangpingensis D.-N. Chen & G.-Q. Zhang, 1999 accepted as Oospira phyllostoma (Heude, 1888)
- Species Hemiphaedusa similaris (H. Adams, 1867) accepted as Zaptyx similaris (H. Adams, 1867)
- Species Hemiphaedusa spinifera H. Nordsieck, 2012 accepted as Selenophaedusa spinifera (H. Nordsieck, 2005)
- Species Hemiphaedusa strictaluna (O. Boettger, 1877) accepted as Zaptyx stimpsoni strictaluna (O. Boettger, 1877)
- Species Hemiphaedusa strictilabris (Schmacker & O. Boettger, 1890) accepted as Bathyptychia (Strictiphaedusa) strictilabris (Schmacker & O. Boettger, 1890)
- Species Hemiphaedusa suilla (Bavay & Dautzenberg, 1909) accepted as Synprosphyma suilla (Bavay & Dautzenberg, 1909)
- Species Hemiphaedusa taibuensis K.-M. Chang & Tada, 2005 accepted as Zaptyx taibuensis (K.-M. Chang & Tada, 2005)
- Species Hemiphaedusa takahashii (Kuroda, 1932)
- Species Hemiphaedusa takahasii (Kuroda, 1932) accepted as Zaptyx (Thaumatoptyx) takahasii Kuroda, 1932
- Species Hemiphaedusa takkiriensis K.-M. Chang, 1985
- Species Hemiphaedusa tantaensis K.-M. Chang & W.-K. Wu, 1977 accepted as Zaptyx tantaensis (K.-M. Chang & W.-K. Wu, 1977)
- Species Hemiphaedusa thaleroptyx (Möllendorff, 1882)
- Species Hemiphaedusa thatkheana (Bavay & Dautzenberg, 1899) accepted as Selenophaedusa thatkheana (Bavay & Dautzenberg, 1899)
- Species Hemiphaedusa thibetiana (Deshayes, 1870) accepted as Synprosphyma thibetiana (Deshayes, 1870)
- Species Hemiphaedusa tosana (Pilsbry, 1900) accepted as Stereophaedusa tosana (Pilsbry, 1900)
- Species Hemiphaedusa ventriculus (Möllendorff, 1901)
- Species Hemiphaedusa wanshiensis (Blume, 1927) accepted as Synprosphyma wanshiensis (Blume, 1927)
- Species Hemiphaedusa wentschuanensis (Blume, 1925)
- Species Hemiphaedusa whitteni H. Nordsieck, 2012 accepted as Margaritiphaedusa whitteni (H. Nordsieck, 2012)
- Species Hemiphaedusa xichangensis T.-C. Luo, D.-N. Chen & G.-Q. Zhang, 1998 accepted as Synprosphyma xichangensis (T.-C. Luo, D.-N. Chen & G.-Q. Zhang, 1998)
- Species Hemiphaedusa yagurai Kuroda, 1936 accepted as Megalophaedusa yagurai (Kuroda, 1936)
- Species Hemiphaedusa yunyangensis D.-N. Chen & G.-Q. Zhang, 1999 accepted as Oospira jinyungensis (D.-N. Chen & G.-Q. Zhang, 1999)
- Species Hemiphaedusa yunyangensis T.-C. Luo & D.-N. Chen, 1997 accepted as Oospira jinyungensis (D.-N. Chen & G.-Q. Zhang, 1999)
- Genus Hemizaptyx Pilsbry, 1905 accepted as Zaptyx (Hemizaptyx) Pilsbry, 1905
- Genus Heterozaptyx Pilsbry, 1906 accepted as Zaptyx Pilsbry, 1900
- Genus Heudiella Annandale, 1924 accepted as Macrophaedusa Möllendorff, 1883
- Genus Idiozaptyx Pilsbry, 1909 accepted as Zaptyx (Zaptyx) Pilsbry, 1900
- Genus Juttingia Loosjes, 1965 (4)
- Genus Leptacme Ehrmann, 1927 accepted as Oospira (Leptocochlea) Grego & Szekeres, 2011
- Genus Leptocochlea Grego & Szekeres, 2011 accepted as Oospira (Leptocochlea) Grego & Szekeres, 2011
- Genus Lindholmiella Ehrmann, 1927 accepted as Oospira (Lindholmiella) Ehrmann, 1927 (1)
- Genus Liparophaedusa Lindholm, 1924 (6)
- Genus Loosjesia H. Nordsieck, 2002 (1)
- Genus Luchuphaedusa Pilsbry, 1901 accepted as Stereophaedusa (Luchuphaedusa) Pilsbry, 1901
- Genus Macrenoica A. J. Wagner, 1920 accepted as Oospira W. T. Blanford, 1872
- Genus Macrophaedusa Möllendorff, 1883 (3)
- Genus Macrophaedusella H. Nordsieck, 2001 (1)
- Genus Mansuyia H. Nordsieck, 2002 accepted as Dautzenbergiella (Mansuyiella) H. Nordsieck, 2003
- Genus Margaritiphaedusa H. Nordsieck, 2001 (10)
- Genus Megalophaedusa O. Boettger, 1877 (63)
- Genus Mesophaedusa Ehrmann, 1929 accepted as Stereophaedusa (Mesophaedusa) Ehrmann, 1929
- Genus Messageriella Páll-Gergely & Szekeres, 2017 (2)
- Genus Metazaptyx Pilsbry, 1905 accepted as Zaptyx (Zaptyx) Pilsbry, 1900
- Genus Minatoia Hunyadi & Szekeres, 2016 (1)
- Genus Miraphaedusa H. Nordsieck, 2005 (4)
- Genus Mundiphaedusa Minato, 1979 accepted as Megalophaedusa (Megalophaedusa) O. Boettger, 1877
- Genus Musaphaedusa H. Nordsieck, 2018 (1)
- Genus Nannophaedusa H. Nordsieck, 2012 (1)
- Genus Nemiphaedeesa O. Boettger, 1877 accepted as Hemiphaedusa O. Boettger, 1877
- Genus Neophaedusa Kuroda & Minato, 1975 accepted as Megalophaedusa (Neophaedusa) Kuroda & Minato, 1975
- Genus Nesiophaedusa Pilsbry, 1905 accepted as Stereophaedusa (Luchuphaedusa) Pilsbry, 1901
- Genus Notoptychia Ehrmann, 1927 (3)
- Genus Oligozaptyx Pilsbry, 1905 accepted as Zaptyx (Stereozaptyx) Pilsbry, 1905
- Genus Oophaedusa Pilsbry, 1905 accepted as Stereophaedusa (Oophaedusa) Pilsbry, 1905
- Genus Oospira W. T. Blanford, 1872 (98)
- Genus Paganizaptyx Azuma, 1982 accepted as Zaptyx Pilsbry, 1900
- Genus Papilliphaedusa H. Nordsieck, 2003 (8)
- Genus Paraphaedusa O. Boettger, 1899 (7)
- Genus Parazaptyx Pilsbry, 1905 accepted as Zaptyx (Parazaptyx) Pilsbry, 1905
- Genus Pauciphaedusa Minato & T. Habe, 1983 accepted as Megalophaedusa (Pauciphaedusa) Minato & T. Habe, 1983
- Genus Phaedusa H. Adams & A. Adams, 1855 (55)
- Genus Pictophaedusa Azuma, 1982 accepted as Reinia (Pictophaedusa) Azuma, 1982
- Genus Pinguiphaedusa Azuma, 1982 accepted as Megalophaedusa (Pinguiphaedusa) Azuma, 1982
- Genus Pliciphaedusa H. Nordsieck, 1998 accepted as Stereophaedusa (Pliciphaedusa) H. Nordsieck, 1998 (1)
- Genus Polyptychephora A. J. Wagner, 1920 accepted as Phaedusa H. Adams & A. Adams, 1855
- Genus Probosciphaedusa Z.-Y. Chen, 2021 (1)
- Genus Proreinia Thiele, 1931 accepted as Reinia Kobelt, 1876
- Genus Pseudonenia O. Boettger, 1877 accepted as Oospira W. T. Blanford, 1872
- Genus Pulchraptyx Minato, 1981 accepted as Zaptyx (Pulchraptyx) Minato, 1981
- Genus Reinia Kobelt, 1876 (16)
- Genus Renschiphaedusa Loosjes & Loosjes-van Bemmel, 1973 accepted as Phaedusa H. Adams & A. Adams, 1855
- Genus Rufospira Möllendorff, 1883 accepted as Oospira W. T. Blanford, 1872
- Genus Selenophaedusa Lindholm, 1924 (20)
- Genus Selenoptyx Pilsbry, 1908 accepted as Zaptyx (Selenoptyx) Pilsbry, 1908
- Genus Serriphaedusa H. Nordsieck, 2001 (18)
- Genus Sinigena Lindholm, 1925 (2)
- Genus Siphonophaedusa Lindholm, 1924 accepted as Oospira (Siphonophaedusa) Lindholm, 1924 (1)
- Genus Solitariphaedusa Motochin & Ueshima, 2017 (1)
- Genus Spinulaphaedusa Minato, 1994 accepted as Megalophaedusa (Tyrannophaedusa) Pilsbry, 1900
- Genus Stercophaedusa O. Boettger, 1877 accepted as Stereophaedusa O. Boettger, 1877
- Genus Stereophaedusa O. Boettger, 1877 (50)
- Genus Stereozaptyx Pilsbry, 1905 accepted as Zaptyx (Stereozaptyx) Pilsbry, 1905
- Genus Streptodera Lindholm, 1925 (1)
- Genus Taiwanphaedusa Motochin & Ueshima, 2017 (2)
- Genus Tauphaedusa H. Nordsieck, 2003 (15)
- Genus Thaumatoptyx Pilsbry, 1908 accepted as Zaptyx (Thaumatoptyx) Pilsbry, 1908
- Genus Tosaphaedusa Ehrmann, 1929 (2)
- Genus Tyrannophaedusa Pilsbry, 1900 accepted as Megalophaedusa (Tyrannophaedusa) Pilsbry, 1900
- Genus Tyrannozaptyx Käufel, 1930 accepted as Zaptyx (Tyrannozaptyx) Käufel, 1930
- Genus Vastina Ehrmann, 1929 accepted as Stereophaedusa (Mesophaedusa) Ehrmann, 1929
- Genus Ventriphaedusa Azuma, 1982 accepted as Megalophaedusa (Ventriphaedusa) Azuma, 1982
- Genus Vitriphaedusa Azuma, 1982 accepted as Megalophaedusa (Vitriphaedusa) Azuma, 1982
- Genus Zaptychopsis Ehrmann, 1927 accepted as Zaptyx (Zaptychopsis) Ehrmann, 1927
- Genus Zaptyx Pilsbry, 1900 (91)
- Tribe Pontophaedusini H. Nordsieck, 2022 (3)
- Tribe Pravispirini H. Nordsieck, 2007 accepted as Serrulinini Ehrmann, 1927
- Tribe Serrulellini H. Nordsieck, 2007 † (20)
- Tribe Serrulinini Ehrmann, 1927 (31)
- Tribe Synprosphymini H. Nordsieck, 2007 accepted as Synprosphyminae H. Nordsieck, 2007
- Genus Excussispira Lindholm, 1925 (8)
- Genus Graecophaedusa Rähle, 1982 (1)
- Genus Serrulinella H. Nordsieck, 1984 (1)
- Genus Synprosphyma A. J. Wagner, 1920 (34)
- Subfamily Serrulininae Ehrmann, 1927 accepted as Serrulinini Ehrmann, 1927
- Subfamily Synprosphyminae H. Nordsieck, 2007 accepted as Phaedusinae A. J. Wagner, 1922
- Genus Cirrobasis Conrad, 1874 † (1)
- Genus Dactylius F. Sandberger, 1872 † accepted as Filholia Bourguignat, 1877 †
- Genus Dactylomorpha Gude, 1911 † accepted as Filholia Bourguignat, 1877 †
- Genus Dextroformosana O. Boettger & Schmacker, 1894 accepted as Formosana O. Boettger, 1877
- Genus Dextrospira Hrubesch, 1965 † (1)
- Genus Distortiphaedusa Grego & Szekeres, 2011 accepted as Oospira (Distortiphaedusa) Grego & Szekeres, 2011
- Genus Pirostoma Möllendorff, 1873 accepted as Macrogastra W. Hartmann, 1841
- Family Filholiidae Wenz, 1923 † (82)
- Family Palaeostoidae H. Nordsieck, 1986 † (15)
- Infraorder Helicina incertae sedis (3 210)
- Infraorder Helicoidei (5 691)
- Infraorder Limacoidei (4 251)
- Infraorder Oleacinoidei (497)
- Infraorder Orthalicoidei (1 587)
- 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 (1 036)
- 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 (6 783)
- 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
