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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)
- Subterclass Sorbeoconcha (147)
- Superorder Hypsogastropoda
- Order Architaenioglossa (4 919)
- Order Caenogastropoda incertae sedis (7 676)
- Order Littorinimorpha (17 189)
- Order Neogastropoda (23 738)
- Superfamily Buccinoidea Rafinesque, 1815 (5 253)
- Superfamily Cancellarioidea Forbes & Hanley, 1851 accepted as Volutoidea Rafinesque, 1815
- Superfamily Conoidea J. Fleming, 1822 (8 694)
- Family Acusidae J. E. Gray, 1853 accepted as Terebridae Mörch, 1852
- Family Borsoniidae Bellardi, 1875 (574)
- Family Bouchetispiridae Kantor, E. E. Strong & Puillandre, 2012 (2)
- Family Clathurellidae H. Adams & A. Adams, 1858 (335)
- Family Clavatulidae J. E. Gray, 1853 (439)
- Genus Benthoclionella Kilburn, 1974 (1)
- Genus Caliendrula Kilburn, 1985 (1)
- Genus Catenotoma Cossmann, 1900 † (3)
- Genus Clavatula Lamarck, 1801 (149)
- Genus Clavulana Vera-Peláez, 2022 † (4)
- Genus Clionella J. E. Gray, 1847 (17)
- Genus Granulatocincta Harzhauser, Landau & R. Janssen, 2022 † (21)
- Genus Hemisurcula T. L. Casey, 1904 † (4)
- Genus Leptosurcula T. L. Casey, 1904 † accepted as Turricula (Leptosurcula) T. L. Casey, 1904 †
- Genus Makiyamaia Kuroda, 1961 (12)
- Genus Megaclavatula Harzhauser, Landau & R. Janssen, 2022 † (16)
- Genus Melatoma Swainson, 1840 accepted as Clionella J. E. Gray, 1847
- Genus Neoperrona Harzhauser, Landau & R. Janssen, 2022 † (3)
- Genus Netrum R. A. Philippi, 1850 accepted as Pusionella J. E. Gray, 1847
- Genus Olegia Harzhauser, Landau & R. Janssen, 2022 † accepted as Oleginina Harzhauser, Landau & R. Janssen, 2022 †
- Genus Oleginina Harzhauser, Landau & R. Janssen, 2022 † (13)
- Genus Orthosurcula T. L. Casey, 1904 † (11)
- Genus Pagodaturris Kantor, Fedosov & Puillandre, 2018 (3)
- Genus Paraclavatula Kantor, Horro, Rolán & Puillandre, 2018 (3)
- Genus Perrona Schumacher, 1817 (41)
- Genus Pusionella J. E. Gray, 1847 (15)
- Genus Scaevatula Gofas, 1990 (3)
- Genus Striopusionella Harzhauser, Landau & R. Janssen, 2022 † (1)
- Genus Surcula H. Adams & A. Adams, 1853 accepted as Turricula Schumacher, 1817 (13)
- Genus Surculoma T. L. Casey, 1904 † (2)
- Genus Tomella Swainson, 1840 accepted as Tomellana Wenz, 1943
- Genus Tomellana Wenz, 1943 (11)
- Genus Toxiclionella A. W. B. Powell, 1966 (3)
- Genus Trachelochetus Cossmann, 1889 † (1)
- Genus Trachydrillia Nolf & Swinnen, 2010 (1)
- Genus Turricula Schumacher, 1817 (86)
- Subgenus Turricula (Ancistrosyrinx) Dall, 1881 accepted as Cochlespira (Ancistrosyrinx) Dall, 1881
- Subgenus Turricula (Catenotoma) Cossmann, 1900 † accepted as Catenotoma Cossmann, 1900 †
- Subgenus Turricula (Comitas) H. J. Finlay, 1926 accepted as Comitas H. J. Finlay, 1926
- Subgenus Turricula (Crenaturricula) H. E. Vokes, 1939 † represented as Turricula Schumacher, 1817
- Subgenus Turricula (Knefastia) Dall, 1919 accepted as Knefastia Dall, 1919
- Subgenus Turricula (Leptosurcula) T. L. Casey, 1904 † represented as Turricula Schumacher, 1817
- Subgenus Turricula (Mordica) Dall, 1924 accepted as Veprecula Melvill, 1917
- Subgenus Turricula (Nangilanica) Shuto, 1980 accepted as Turricula (Nangulanica) Shuto, 1980
- Subgenus Turricula (Nangulanica) Shuto, 1980 accepted as Turricula Schumacher, 1817
- Subgenus Turricula (Orthosurcula) T. L. Casey, 1904 accepted as Orthosurcula T. L. Casey, 1904 †
- Subgenus Turricula (Pleurofusia) De Gregorio, 1890 † accepted as Pleurofusia De Gregorio, 1890 † (1)
- Subgenus Turricula (Surcula) H. Adams & A. Adams, 1853 accepted as Turricula Schumacher, 1817 (1)
- Subgenus Turricula (Turricula) Schumacher, 1817 accepted as Turricula Schumacher, 1817
- Species Turricula aethiopica (Thiele, 1925)
- Species Turricula aldreperta G. D. Harris, 1937 †
- Species Turricula alexeevi Amitrov & Mironova, 1973 †
- Species Turricula alfurica P. J. Fischer, 1921 † accepted as Vexillum alfuricum (P. J. Fischer, 1921) †
- Species Turricula allioni (Foresti, 1876) †
- Species Turricula amplisulcus (Barnard, 1958)
- Species Turricula angoliensis Caster, 1938 †
- Species Turricula anomalocostata Wade, 1926 † accepted as Remnita anomalocostata (Wade, 1926) †
- Species Turricula atsukoae Kamada, 1962 † accepted as Comitas atsukoae (Kamada, 1962) †
- Species Turricula bacata Stanton, 1921 †
- Species Turricula bantamensis (K. Martin, 1895) †
- Species Turricula barbadensis (Trechmann, 1925) †
- Species Turricula barreti (de Boury, 1899) †
- Species Turricula beadata (G. D. Harris, 1895) †
- Species Turricula beanensis Durham, 1944 †
- Species Turricula berendti (Koenen, 1890) †
- Species Turricula biacuminata Wade, 1926 † accepted as Remnita biacuminata (Wade, 1926) †
- Species Turricula bijubata (Reeve, 1843) accepted as Turridrupa bijubata (Reeve, 1843)
- Species Turricula birmanica (Vredenburg, 1921) †
- Species Turricula blagravei (Vredenburg, 1925) †
- Species Turricula bonilla Olsson, 1929 †
- Species Turricula bremertonensis Durham, 1944 †
- Species Turricula brevicauda (Deshayes, 1834) †
- Species Turricula brugnonii (G. Seguenza, 1875) †
- Species Turricula brunonia Dall, 1924 accepted as Veprecula brunonia (Dall, 1924)
- Species Turricula brunsvicensis (Koenen, 1894) †
- Species Turricula burroensis (R. N. Nelson, 1925) †
- Species Turricula burtoni J. K. Tucker & Le Renard, 1993 †
- Species Turricula buwaldana (F. M. Anderson & B. Martin, 1914) †
- Species Turricula byorituensis Nomura, 1935 † accepted as Turricula nelliae spuria (Hedley, 1922)
- Species Turricula cadaverosa (Reeve, 1844) accepted as Vexillum cadaverosum (Reeve, 1844)
- Species Turricula calafia R. N. Nelson, 1925 †
- Species Turricula carinata (Garvie, 1996) †
- Species Turricula catena (Reeve, 1843)
- Species Turricula catenata (Lamarck, 1804) † accepted as Catenotoma catenata (Lamarck, 1804) †
- Species Turricula catenula (Deshayes, 1865) † accepted as Catenotoma catenula (Deshayes, 1865) †
- Species Turricula ceylonica (E. A. Smith, 1877)
- Species Turricula coquandi (Bellardi, 1847) † accepted as Kantoria coquandi (Bellardi, 1847) †
- Species Turricula crassicosta (F. E. Edwards, 1857) †
- Species Turricula crenatospira (J. G. Cooper, 1894) †
- Species Turricula cruziana Olsson, 1932 † accepted as Cruziturricula cruziana (Olsson, 1932) †
- Species Turricula curtata Marwick, 1926 † accepted as Marshallena curtata (Marwick, 1926) †
- Species Turricula dentata (Lamarck, 1804) †
- Species Turricula drilliaeformis (K. Martin, 1895) †
- Species Turricula dulcia Olsson, 1942 †
- Species Turricula eastoni (K. Martin, 1914) †
- Species Turricula emerita Hickman, 1976 †
- Species Turricula ensyuensis Shikama, 1977 accepted as Comitas ensyuensis (Shikama, 1977)
- Species Turricula esdailei Marwick, 1926 † accepted as Tahuia esdailei (Marwick, 1926) †
- Species Turricula everwyni (K. Martin, 1884) †
- Species Turricula ewekoroensis Adegoke, 1977 †
- Species Turricula excelsa J. Böhm, 1926 † accepted as Vincenturris excelsa (J. Böhm, 1926) †
- Species Turricula fasciolata Wade, 1926 †
- Species Turricula faurei (Barnard, 1958)
- Species Turricula flammea Schumacher, 1817 accepted as Turricula tornata tornata (Dillwyn, 1817)
- Species Turricula gembacana (K. Martin, 1884) †
- Species Turricula gemmulaeformis (Thiele, 1925)
- Species Turricula gendinganensis K. Martin, 1906 † accepted as Unedogemmula indica (Röding, 1798)
- Species Turricula glyphana (Bayan, 1873) †
- Species Turricula granobalteatus [sic] accepted as Turricula granobalteus (Hedley, 1922)
- Species Turricula granobalteus (Hedley, 1922)
- Species Turricula guttata (K. Martin, 1935) †
- Species Turricula hillegondae (K. Martin, 1914) †
- Species Turricula hillegondae (K. Martin, 1913) † accepted as Comitas hillegondae (K. Martin, 1931) †
- Species Turricula hondoana Dall, 1925 accepted as Aforia circinata (Dall, 1873)
- Species Turricula ijzermani (K. Martin, 1933) †
- Species Turricula ilonae Báldi, 1966 † accepted as Domenginella ilonae (Báldi, 1966) †
- Species Turricula inermiformis (Csepreghy-Meznerics, 1969) †
- Species Turricula infida Y. Zheng & S. J. Maxwell, 2024
- Species Turricula japonica Dall, 1925 accepted as Aforia circinata (Dall, 1873)
- Species Turricula javana (Linnaeus, 1767)
- Species Turricula jogjacartensis (K. Martin, 1931) †
- Species Turricula kelirensis (K. Martin, 1916) †
- Species Turricula kuroharai Oyama, 1962 accepted as Comitas kuroharai (Oyama, 1962)
- Species Turricula lamarckii (Michelotti, 1847) † accepted as Kantoria lamarckii (Michelotti, 1847) †
- Species Turricula lavinia Dall, 1919 accepted as Ptychobela lavinia (Dall, 1919)
- Species Turricula lavinoides Olsson, 1922 accepted as Fusiturricula lavinoides (Olsson, 1922)
- Species Turricula lepidota (K. Martin, 1914) †
- Species Turricula libya Dall, 1919 accepted as Tiariturris libya (Dall, 1919)
- Species Turricula limonensis Olsson, 1922 accepted as Fusiturricula lavinoides (Olsson, 1922)
- Species Turricula lirocostata Cossmann, 1899 †
- Species Turricula mauritii (de Boury, 1899) †
- Species Turricula mcnairyensis Wade, 1926 † accepted as Amuletum mcnairyensis (Wade, 1926) †
- Species Turricula mertoni (K. Martin, 1914) † accepted as Pleurofusia mertoni (K. Martin, 1914) †
- Species Turricula michelini (Deshayes, 1865) †
- Species Turricula mordax (K. Martin, 1914) † accepted as Pleurofusia mordax (K. Martin, 1914) †
- Species Turricula murrawolga Garrard, 1961 accepted as Comitas murrawolga (Garrard, 1961)
- Species Turricula nanggulanensis (K. Martin, 1931) †
- Species Turricula navarchus (Melvill & Standen, 1903)
- Species Turricula nelliae (E. A. Smith, 1877)
- Species Turricula permodesta (K. Martin, 1914) † accepted as Pentagoniturricula permodesta (K. Martin, 1914) †
- Species Turricula piercei (Arnold, 1909) †
- Species Turricula plagiaria (K. Martin, 1931) †
- Species Turricula plagioptyx (O. Boettger, 1883) †
- Species Turricula planata F. W. Hutton, 1885 † accepted as Austromitra planata (F. W. Hutton, 1885)
- Species Turricula plateaui (Cossmann, 1889) †
- Species Turricula pollii (Icke & K. Martin, 1907) †
- Species Turricula polycesta (Bayan, 1873) †
- Species Turricula profundorum (E. A. Smith, 1896)
- Species Turricula rebuffoi Figueiras & Broggi, 1976 †
- Species Turricula rectilateralis (G. B. Sowerby II, 1874) accepted as Vexillum suluense (A. Adams & Reeve, 1850)
- Species Turricula regularis (Koninck, 1837) † accepted as Surcula regularis (Koninck, 1837) †
- Species Turricula rembangensis (K. Martin, 1906) †
- Species Turricula salalahensis Horro & Gori, 2024
- Species Turricula samarangana (K. Martin, 1884) †
- Species Turricula sanctistephani Lozouet, 2017 †
- Species Turricula scalaria (Barnard, 1958) accepted as Makiyamaia scalaria (Barnard, 1958)
- Species Turricula smithi (K. Martin, 1884) †
- Species Turricula streptopleura (Cossmann, 1900) †
- Species Turricula subelegans (A. d'Orbigny, 1850) †
- Species Turricula sulcicancellata (Barnard, 1958)
- Species Turricula sultani (K. Martin, 1914) †
- Species Turricula sumatrana (Thiele, 1925)
- Species Turricula taurina Olsson, 1922 † accepted as Fusiturricula taurina (Olsson, 1922) †
- Species Turricula terae Oostingh, 1938 †
- Species Turricula textiliosa (Deshayes, 1834) †
- Species Turricula thurstoni (E. A. Smith, 1896)
- Species Turricula tornata (Dillwyn, 1817)
- Species Turricula tornatus [sic] accepted as Turricula tornata (Dillwyn, 1817)
- Species Turricula transversaria (Lamarck, 1804) †
- Species Turricula tuberculata (Gray, 1839) accepted as Turricula nelliae spuria (Hedley, 1922)
- Species Turricula turriplana (G. B. Sowerby III, 1903)
- Species Turricula vaudini (Deshayes, 1865) †
- Species Turricula veslensis (Cossmann, 1899) †
- Species Turricula vibekeae Schnetler & M. S. Nielsen, 2018 †
- Species Turricula voyseyi (d'Archiac, 1854) †
- Species Turricula waitaraensis Marwick, 1926 † accepted as Thatcheria waitaraensis (Marwick, 1926) †
- Species Turricula wanneri (K. Martin, 1914) †
- Species Turricula waringinensis (K. Martin, 1895) †
- Genus Veraspira Vera-Peláez, 2022 † (1)
- 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 (1 391)
- Family Conilithidae J. K. Tucker & M. Tenorio, 2009 accepted as Conidae J. Fleming, 1822
- Family Conoidea incertae sedis (320)
- Family Conorbidae De Gregorio, 1880 (19)
- Family Conusidae J. Fleming, 1822 accepted as Conidae J. Fleming, 1822
- Family Cryptoconidae Cossmann, 1896 † (23)
- Family Drilliidae Olsson, 1964 (771)
- Family Fusiturridae Abdelkrim, Aznar-Cormano, Fedosov, Kantor, Lozouet, Phuong, Zaharias & Puillandre, 2018 (20)
- 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 (220)
- 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 (784)
- Family Raphitomidae Bellardi, 1875 (1 160)
- 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) (388)
- 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 † (56)
- 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 (1 253)
- Superfamily Volutoidea Rafinesque, 1815 (3 873)
- Order Stenoglossa accepted as Neogastropoda
- Subclass Gastropoda incertae sedis (308)
- Subclass Heterobranchia (39 172)
- 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