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- Mollusca (132 738)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (24 984)
- Class Caudofoveata (143)
- Class Cephalopoda (1 830)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 673)
- Subclass Amphigastropoda † (387)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (53 618)
- Subterclass Sorbeoconcha (147)
- Superorder Hypsogastropoda
- Order Architaenioglossa (4 917)
- Order Caenogastropoda incertae sedis (7 675)
- Order Littorinimorpha (17 166)
- Order Neogastropoda (23 713)
- Superfamily Buccinoidea Rafinesque, 1815 (5 253)
- Superfamily Cancellarioidea Forbes & Hanley, 1851 accepted as Volutoidea Rafinesque, 1815
- Superfamily Conoidea J. Fleming, 1822 (8 671)
- Family Acusidae J. E. Gray, 1853 accepted as Terebridae Mörch, 1852
- Family Borsoniidae Bellardi, 1875 (571)
- Family Bouchetispiridae Kantor, E. E. Strong & Puillandre, 2012 (2)
- Family Clathurellidae H. Adams & A. Adams, 1858 (334)
- Family Clavatulidae J. E. Gray, 1853 (438)
- Family Clavidae T. L. Casey, 1904 accepted as Drilliidae Olsson, 1964
- Family Clionellidae W. Stimpson, 1865 accepted as Clavatulidae J. E. Gray, 1853
- Family Cochlespiridae A. W. B. Powell, 1942 (114)
- Family Conidae J. Fleming, 1822 (1 393)
- Family Conilithidae J. K. Tucker & M. Tenorio, 2009 accepted as Conidae J. Fleming, 1822
- Family Conoidea incertae sedis (317)
- Family Conorbidae De Gregorio, 1880 (19)
- Family Conusidae J. Fleming, 1822 accepted as Conidae J. Fleming, 1822
- Family Cryptoconidae Cossmann, 1896 † (22)
- Family Drilliidae Olsson, 1964 (769)
- Family Fusiturridae Abdelkrim, Aznar-Cormano, Fedosov, Kantor, Lozouet, Phuong, Zaharias & Puillandre, 2018 (19)
- Family Horaiclavidae Bouchet, Kantor, Sysoev & Puillandre, 2011 (315)
- Family Mangeliidae P. Fischer, 1883 (1 064)
- Family Marshallenidae Abdelkrim, Aznar-Cormano, Fedosov, Kantor, Lozouet, Phuong, Zaharias & Puillandre, 2018 (5)
- Family Melatomidae Gill, 1871 accepted as Clavatulidae J. E. Gray, 1853
- Family Mitrolumnidae Sacco, 1904 accepted as Mitromorphidae T. L. Casey, 1904
- Family Mitromorphidae T. L. Casey, 1904 (219)
- Family Pervicaciidae Rudman, 1969 accepted as Terebridae Mörch, 1852
- Family Pleurotomidae J. E. Gray, 1838 accepted as Turridae H. Adams & A. Adams, 1853 (1838)
- Family Pseudomelatomidae J. P. E. Morrison, 1966 (781)
- Family Raphitomidae Bellardi, 1875 (1 156)
- Subfamily Raphitominae Bellardi, 1875 accepted as Raphitomidae Bellardi, 1875
- Genus Abyssobela Kantor & Sysoev, 1986 (1)
- Genus Abyssothauma Sysoev, 1996 (1)
- Genus Acamptodaphne Shuto, 1971 (3)
- Genus Acanthodaphne Bonfitto & Morassi, 2006 (6)
- Genus Aliceia Dautzenberg & H. Fischer, 1897 (3)
- Genus Allo Jousseaume, 1934 accepted as Taranis Jeffreys, 1870
- Genus Andonia G. F. Harris & Burrows, 1891 † (7)
- Genus Anna Risso, 1826 †
- Genus Anomalotomella A. W. B. Powell, 1966 accepted as Pleurotomella (Anomalotomella) A. W. B. Powell, 1966
- Genus Aplotoma Criscione, Hallan, Puillandre & Fedosov, 2020 (1)
- Genus Asperdaphne Hedley, 1922 (27)
- Genus Aspertilla A. W. B. Powell, 1944 accepted as Asperdaphne Hedley, 1922
- Genus Austrobela Criscione, Hallan, Puillandre & Fedosov, 2020 (11)
- Genus Austrodaphnella Laseron, 1954 (4)
- Genus Austropusilla Laseron, 1954 (3)
- Genus Austrotheta Criscione, Hallan, Puillandre & Fedosov, 2020 (3)
- Genus Awheaturris Beu, 1970 † (4)
- Genus Azorilla F. Nordsieck, 1968 accepted as Teretia Norman, 1888
- Genus Azorita F. Nordsieck, 1968 accepted as Pleurotomella A. E. Verrill, 1872
- Genus Bathybela Kobelt, 1905 (3)
- Genus Bathypota F. Nordsieck, 1968 accepted as Bathybela Kobelt, 1905
- Genus Biconitoma Criscione, Hallan, Puillandre & Fedosov, 2020 (1)
- Genus Buccinaria Kittl, 1887 (12)
- Genus Caribedaphne Espinosa, Fernández-Garcés & Ortea, 2020 (4)
- Genus Cenodagreutes E. H. Smith, 1967 accepted as Cyrillia Kobelt, 1905
- Genus Cirillia Monterosato, 1884 accepted as Cyrillia Kobelt, 1905
- Genus Clathromangelia Monterosato, 1884 (25)
- Genus Clathromangilia Cossmann, 1896 accepted as Clathromangelia Monterosato, 1884
- Genus Clathurina Melvill, 1917 accepted as Kermia W. R. B. Oliver, 1915 (2)
- Genus Clinura Bellardi, 1875 (10)
- Genus Cochlioconus Yokoyama, 1928 accepted as Thatcheria Angas, 1877
- Genus Cordieria Monterosato, 1884 accepted as Raphitoma Bellardi, 1847 (1)
- Genus Cryptodaphne A. W. B. Powell, 1942 (8)
- Genus Cyrillia Kobelt, 1905 (9)
- Genus Cyrtoides F. Nordsieck, 1968 accepted as Raphitoma Bellardi, 1847
- Genus Daphnella Hinds, 1844 (115)
- Genus Diaugasma Melvill, 1917 (4)
- Genus Eubela Dall, 1889 (13)
- Genus Eucyclotoma O. Boettger, 1895 (12)
- Genus Eudaphne Bartsch, 1931 accepted as Daphnella Hinds, 1844
- Genus Eudaphnella Bartsch, 1933 accepted as Daphnella Hinds, 1844
- Genus Exomilus Hedley, 1918 (10)
- Genus Famelica Bouchet & Warén, 1980 (16)
- Genus Favriella Hornung, 1920 † (6)
- Genus Feliciella E. Lamy, 1934 accepted as Taranis Jeffreys, 1870
- Genus Fenestrosyrinx H. J. Finlay, 1926 accepted as Taranis Jeffreys, 1870
- Genus Fusidaphne Laseron, 1954 accepted as Pleurotomella A. E. Verrill, 1872
- Genus Fusobela Criscione, Hallan, Puillandre & Fedosov, 2020 (2)
- Genus Genea Bellardi, 1873 † accepted as Andonia G. F. Harris & Burrows, 1891 †
- Genus Glaciotomella Criscione, Hallan, Puillandre & Fedosov, 2020 (1)
- Genus Gladiobela Criscione, Hallan, Puillandre & Fedosov, 2020 (7)
- Genus Globodaphne Criscione, Hallan, Puillandre & Fedosov, 2020 (1)
- Genus Glyphostomoides Shuto, 1983 (2)
- Genus Gymnobela A. E. Verrill, 1884 (64)
- Genus Hemidaphne Hedley, 1918 accepted as Daphnella Hinds, 1844
- Genus Hemilienardia O. Boettger, 1895 (43)
- Genus Hokianga Laws, 1947 † (1)
- Genus Homotoma Bellardi, 1875 accepted as Raphitoma Bellardi, 1847
- Genus Isodaphne Laseron, 1954 (3)
- Genus Kermia W. R. B. Oliver, 1915 (36)
- Genus Kuroshiodaphne Shuto, 1965 (6)
- Genus Leiosyrinx Bouchet & A. Sysoev, 2001 (4)
- Genus Leufroyia Monterosato, 1884 (24)
- Genus Lineotoma F. Nordsieck, 1977 accepted as Cyrillia Kobelt, 1905
- Genus Litachilus A. W. B. Powell, 1944 accepted as Teleochilus G. F. Harris, 1897
- Genus Lusitanops F. Nordsieck, 1968 (11)
- Genus Magnella Dittmer, 1960 accepted as Mioawateria Vella, 1954
- Genus Majox F. Nordsieck, 1968 accepted as Gymnobela A. E. Verrill, 1884
- Genus Maoridaphne A. W. B. Powell, 1942 † (3)
- Genus Metuonella Sorgenfrei, 1958 † (2)
- Genus Microandonia Landau, Harzhauser & Giannuzzi-Savelli, 2022 † (1)
- Genus Microdaphne J. H. McLean, 1971 (4)
- Genus Microgenia Laseron, 1954 (1)
- Genus Microsurcula T. L. Casey, 1904 †
- Genus Mioawateria Vella, 1954 (21)
- Genus Mordica Dall, 1924 accepted as Veprecula Melvill, 1917
- Genus Neopleurotomoides Shuto, 1971 (5)
- Genus Nepotilla Hedley, 1918 (22)
- Subgenus Nepotilla (Zenepos) Finlay, 1928 accepted as Zenepos H. J. Finlay, 1928
- Species Nepotilla aculeata (May, 1915)
- Species Nepotilla amoena (G. O. Sars, 1878)
- Species Nepotilla anomala (A. W. B. Powell, 1955)
- Species Nepotilla bartrumi Laws, 1939 †
- Species Nepotilla bathentoma (Verco, 1909)
- Species Nepotilla carinata Laseron, 1954
- Species Nepotilla diaphana May, 1920
- Species Nepotilla excavata (Gatliff, 1906)
- Species Nepotilla fenestrata (Verco, 1909)
- Species Nepotilla finlayi A. W. B. Powell, 1937
- Species Nepotilla lamellosa (G. B. Sowerby III, 1896)
- Species Nepotilla marmorata (Verco, 1909)
- Species Nepotilla microscopica (May, 1915)
- Species Nepotilla mimica (G. B. Sowerby III, 1896)
- Species Nepotilla minuta (Tenison Woods, 1877) accepted as Zenepos minuta (Tenison Woods, 1877)
- Species Nepotilla nezi (Okutani, 1964)
- Species Nepotilla nitidula A. W. B. Powell, 1940
- Species Nepotilla paucicostata (A. W. B. Powell, 1937)
- Species Nepotilla powelli Dell, 1956
- Species Nepotilla powelli Ludbrook, 1958 †
- Species Nepotilla serrata Laseron, 1954
- Species Nepotilla triseriata (Verco, 1909)
- Species Nepotilla tropicalis Hedley, 1922
- Species Nepotilla vera A. W. B. Powell, 1940
- Genus Nodothauma Criscione, Hallan, Puillandre & Fedosov, 2020 (1)
- Genus Onoketoma Beu, 2011 † (1)
- Genus Ootoma Koperberg, 1931 accepted as Buccinaria Kittl, 1887
- Genus Ootomella Bartsch, 1933 accepted as Buccinaria Kittl, 1887
- Genus Pagodibela Criscione, Hallan, Puillandre & Fedosov, 2020 (4)
- Genus Pagodidaphne Shuto, 1983 (2)
- Genus Paradaphne Laseron, 1954 accepted as Daphnella (Paradaphne) Laseron, 1954
- Genus Paramontana Laseron, 1954 (7)
- Genus Peratotoma G. F. Harris & Burrows, 1891 accepted as Philbertia Monterosato, 1884
- Genus Philbertia Monterosato, 1884 accepted as Raphitoma Bellardi, 1847 (5)
- Genus Phymorhynchus Dall, 1908 (20)
- Genus Pionotoma Kuroda, 1952 accepted as Buccinaria Kittl, 1887
- Genus Pleurotomella A. E. Verrill, 1872 (115)
- Genus Pontiothauma E. A. Smith, 1895 (5)
- Genus Pseudodaphnella O. Boettger, 1895 (66)
- Genus Pseudolusitanops Lozouet, 2017 † (1)
- Genus Pueridaphne Criscione, Hallan, Puillandre & Fedosov, 2020 (2)
- Genus Puha Marwick, 1931 † (2)
- Genus Qii C.-K. Chang, 1995 accepted as Pseudodaphnella O. Boettger, 1895
- Genus Raphitoma Bellardi, 1847 (132)
- Genus Rhaphitoma [sic] accepted as Raphitoma Bellardi, 1847
- Genus Rimosodaphnella Cossmann, 1916 (9)
- Genus Rocroithys Sysoev & Bouchet, 2001 (2)
- Genus Speoides Kuroda & Habe, 1961 accepted as Spergo Dall, 1895
- Genus Spergo Dall, 1895 (13)
- Genus Stilla H. J. Finlay, 1926 (3)
- Genus Taranidaphne Morassi & Bonfitto, 2001 (5)
- Genus Taranis Jeffreys, 1870 (23)
- Genus Tasmadaphne Laseron, 1954 accepted as Pleurotomella A. E. Verrill, 1872
- Genus Teleochilus G. F. Harris, 1897 (6)
- Genus Teretia Norman, 1888 (24)
- Genus Teretiopsis Kantor & Sysoev, 1989 (5)
- Genus Thatcheria Angas, 1877 (7)
- Genus Thatcheriasyrinx A. W. B. Powell, 1969 (1)
- Genus Thatcherina Vera-Peláez, 1998 (4)
- Genus Thesbia Jeffreys, 1867 (5)
- Genus Theta A. H. Clarke, 1959 (11)
- Genus Thetidos Hedley, 1899 (8)
- Genus Tritonoturris Dall, 1924 (17)
- Genus Trochodaphne Criscione, Hallan, Puillandre & Fedosov, 2020 (1)
- Genus Truncadaphne J. H. McLean, 1971 (1)
- Genus Turrhyssa Dall, 1924 accepted as Eucyclotoma O. Boettger, 1895
- Genus Tuskaroria Sysoev, 1988 (1)
- Genus Typhlosyrinx Thiele, 1925 (5)
- Genus Veprecula Melvill, 1917 (17)
- Genus Vepridaphne Shuto, 1983 (1)
- Genus Vitjazinella Sysoev, 1988 (1)
- Genus Watsonaria F. Nordsieck, 1968 accepted as Gymnobela A. E. Verrill, 1884
- Genus Xanthodaphne A. W. B. Powell, 1942 (31)
- Genus Zenepos H. J. Finlay, 1928 (3)
- Family Strictispiridae J. H. McLean, 1971 accepted as Pseudomelatomidae J. P. E. Morrison, 1966
- Family Taranteconidae J. K. Tucker & M. Tenorio, 2009 accepted as Conidae J. Fleming, 1822
- Family Terebridae Mörch, 1852 (750)
- Family Thatcheriidae A. W. B. Powell, 1942 accepted as Raphitomidae Bellardi, 1875
- Family Turridae H. Adams & A. Adams, 1853 (1838) (383)
- Subfamily Andoniinae Vera-Peláez, 2002 † accepted as Raphitomidae Bellardi, 1875
- Subfamily Crassispirinae J. H. McLean, 1971 accepted as Pseudomelatomidae J. P. E. Morrison, 1966
- Subfamily Cytharinae Thiele, 1929 accepted as Mangeliidae P. Fischer, 1883
- Subfamily Daphnellinae T. L. Casey, 1904 accepted as Raphitomidae Bellardi, 1875
- Subfamily Diptychomitrinae Bellardi, 1888 accepted as Mitromorphidae T. L. Casey, 1904
- Subfamily Oenopotinae Bogdanov, 1987 accepted as Mangeliidae P. Fischer, 1883
- Subfamily Pleurotomellinae F. Nordsieck, 1968 accepted as Raphitomidae Bellardi, 1875
- Subfamily Pseudotominae Bellardi, 1875 accepted as Borsoniidae Bellardi, 1875
- Subfamily Pusionellinae J. E. Gray, 1853 accepted as Clavatulidae J. E. Gray, 1853
- Subfamily Taraninae T. L. Casey, 1904 accepted as Raphitomidae Bellardi, 1875
- Subfamily Turriculinae A. W. B. Powell, 1942 accepted as Clavatulidae J. E. Gray, 1853
- Subfamily Zemaciinae Sysoev, 2003 accepted as Borsoniidae Bellardi, 1875
- Subfamily Zonulispirinae J. H. McLean, 1971 accepted as Pseudomelatomidae J. P. E. Morrison, 1966
- Superfamily Mitroidea Swainson, 1831 (633)
- Superfamily Muricacea accepted as Muricoidea Rafinesque, 1815
- Superfamily Muricoidea Rafinesque, 1815 (2 940)
- Superfamily Neogastropoda incertae sedis (296)
- Superfamily Olivoidea Latreille, 1825 (740)
- Superfamily Pholidotomoidea Cossmann, 1896 † (55)
- Superfamily Pseudolivoidea De Gregorio, 1880 accepted as Olivoidea Latreille, 1825
- Superfamily Pyrifusoidea Bandel & Dockery, 2001 † accepted as Pholidotomoidea Cossmann, 1896 †
- Superfamily Sarganoidea Stephenson, 1923 † accepted as Pholidotomoidea Cossmann, 1896 †
- Superfamily Toxoglossa Troschel, 1848 accepted as Conoidea J. Fleming, 1822
- Superfamily Turbinelloidea Swainson, 1835 (1 252)
- Superfamily Volutoidea Rafinesque, 1815 (3 873)
- Order Stenoglossa accepted as Neogastropoda
- Subclass Gastropoda incertae sedis (308)
- Subclass Heterobranchia (39 153)
- 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