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- Mollusca (133 210)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Amphineura accepted as Aculifera
- Class Bivalvia (25 077)
- Class Caudofoveata (143)
- Class Cephalopoda (1 915)
- Class Conchifera accepted as Bivalvia
- Class Cricoconarida † (1)
- Class Gastropoda (102 962)
- Subclass Amphigastropoda † (428)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (53 790)
- Subterclass Sorbeoconcha (147)
- Superorder Hypsogastropoda
- Order Architaenioglossa (4 921)
- Order Caenogastropoda incertae sedis (7 676)
- Order Littorinimorpha (17 226)
- Order Neogastropoda (23 820)
- Superfamily Buccinoidea Rafinesque, 1815 (5 268)
- Family Alectrionidae Dall, 1908 accepted as Nassariinae Iredale, 1916 (1835)
- Family Anachidae A. N. Golikov & Starobogatov, 1972 accepted as Atiliinae Cossmann, 1901
- Family Arculariidae Iredale, 1915 accepted as Nassariinae Iredale, 1916 (1835)
- Family Austrosiphonidae Cotton & Godfrey, 1938 (58)
- Family Belomitridae Kantor, Puillandre, Rivasseau & Bouchet, 2012 (32)
- Family Beringiidae A. N. Golikov & Starobogatov, 1975 accepted as Beringiinae A. N. Golikov & Starobogatov, 1975
- Family Buccinanopsidae Galindo, Puillandre, Lozouet & Bouchet, 2016 (7)
- Family Buccinidae Rafinesque, 1815 (513)
- Family Buccinoidea incertae sedis (154)
- Family Buccinulidae H. J. Finlay, 1928 accepted as Tudiclidae Cossmann, 1901
- Family Busyconidae Wade, 1917 (1867) (33)
- Family Cassidulidae Gray, 1854 accepted as Melongenidae Gill, 1871 (1854)
- Family Chauvetiidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (61)
- Family Colidae J. E. Gray, 1857 (32)
- Family Colubrariidae Dall, 1904 (163)
- Family Columbellidae Swainson, 1840 (1 203)
- Family Cominellidae J. E. Gray, 1857 (76)
- Family Cyclopsidae Chenu, 1859 accepted as Nassariinae Iredale, 1916 (1835)
- Family Cyrtulidae MacDonald, 1869 accepted as Fusininae Wrigley, 1927
- Family Dolicholatiridae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (43)
- Family Donovaniidae T. L. Casey, 1904 accepted as Chauvetiidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021
- Family Echinofulguridae Petuch, 1994 † (15)
- Family Eosiphonidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (72)
- Family Fasciolariidae Gray, 1853 (885)
- Family Fulguridae Stoliczka, 1867 accepted as Busyconinae Wade, 1917 (1867)
- Family Galeodidae Thiele, 1925 accepted as Melongenidae Gill, 1871 (1854)
- Family Heligmotomidae Adegoke, 1977 † accepted as Melongenidae Gill, 1871 (1854)
- Family Latiridae Iredale, 1929 accepted as Fasciolariinae Gray, 1853
- Family Melongenidae Gill, 1871 (1854) (93)
- Family Nassariidae Iredale, 1916 (1835) (1 085)
- Subfamily Anentominae E. E. Strong, Galindo & Kantor, 2017 (20)
- Subfamily Buccinanopsinae Galindo, Puillandre, Lozouet & Bouchet, 2016 accepted as Buccinanopsidae Galindo, Puillandre, Lozouet & Bouchet, 2016
- Subfamily Bulliinae Allmon, 1990 (47)
- Subfamily Cyclonassinae Gill, 1871 accepted as Nassariinae Iredale, 1916 (1835)
- Subfamily Cylleninae Bellardi, 1882 (29)
- Subfamily Dorsaninae Cossmann, 1901 (73)
- Subfamily Duplicatinae Muskhelishvili, 1967 † accepted as Dorsaninae Cossmann, 1901
- Subfamily Nassariidae incertae sedis (4)
- Subfamily Nassariinae Iredale, 1916 (1835) (723)
- Genus Aciculina A. Adams, 1853 accepted as Nassarius (Aciculina) A. Adams, 1853
- Genus Alectrion Montfort, 1810 accepted as Nassarius Duméril, 1805 (2)
- Genus Alectryon Berthold, 1827 accepted as Nassarius (Alectrion) Montfort, 1810
- Genus Allanassa Iredale, 1929 accepted as Nassarius Duméril, 1805
- Genus Amycla H. Adams & A. Adams, 1853 accepted as Tritia Risso, 1826
- Genus Amyclina Iredale, 1918 accepted as Tritia Risso, 1826
- Genus Arcularia Link, 1807 accepted as Nassarius Duméril, 1805
- Genus Arculia Jousseaume, 1888 accepted as Arcularia Link, 1807
- Genus Austronassaria C. Laseron & J. Laseron, 1956 accepted as Nassarius Duméril, 1805
- Genus Bathynassa Ladd, 1976 † accepted as Nassarius Duméril, 1805
- Genus Bilinassa Jousseaume, 1894 accepted as Tritia Risso, 1826
- Genus Buccitriton Conrad, 1865 †
- Genus Caesia H. Adams & A. Adams, 1853 (4)
- Genus Cencus Gistel, 1848 accepted as Cyclope Risso, 1826
- Genus Chelenassa Shuto, 1969 † accepted as Nassarius (Plicarcularia) Thiele, 1929
- Genus Cyclonassa Swainson, 1840 accepted as Cyclope Risso, 1826
- Genus Cyclope Risso, 1826 accepted as Tritia Risso, 1826
- Genus Cyclops Montfort, 1810 accepted as Cyclope Risso, 1826
- Genus Demoulea [sic] accepted as Demoulia Gray, 1838
- Genus Demoulia Gray, 1838 (8)
- Genus Demoulinsia accepted as Demoulia Gray, 1838
- Genus Desmoulea accepted as Demoulia Gray, 1838
- Genus Desmoulinsia accepted as Demoulia Gray, 1838
- Genus Eione Risso, 1826 accepted as Nassarius (Plicarcularia) Thiele, 1929
- Genus Glabrinassa Shuto, 1969 accepted as Nassarius (Zeuxis) H. Adams & A. Adams, 1853
- Genus Hebra H. Adams & A. Adams, 1853 accepted as Nassarius Duméril, 1805
- Genus Hima [sic] accepted as Tritia Risso, 1826
- Genus Hinia Leach, 1847 accepted as Tritia Risso, 1826
- Genus Ilyanassa W. Stimpson, 1865 (3)
- Genus Leptarius Woodring, 1964 † accepted as Psilarius Woodring, 1964 †
- Genus Mirua Marwick, 1931 † accepted as Tritia Risso, 1826
- Genus Moulinsia Tournouer, 1874 accepted as Demoulia Gray, 1838
- Genus Nana Schumacher, 1817 accepted as Cyclope Risso, 1826
- Genus Nanina Risso, 1826 accepted as Cyclope Risso, 1826
- Genus Nassa Lamarck, 1799 accepted as Tritia Risso, 1826 (3)
- Subgenus Nassa (Aciculina) A. Adams, 1853 accepted as Nassarius (Aciculina) A. Adams, 1853
- Subgenus Nassa (Alectrion) Montfort, 1810 accepted as Nassarius (Alectrion) Montfort, 1810
- Subgenus Nassa (Alectryon) Berthold, 1827 accepted as Nassarius (Alectrion) Montfort, 1810
- Subgenus Nassa (Amycla) H. Adams & A. Adams, 1853 accepted as Tritia Risso, 1826
- Subgenus Nassa (Amyclina) Iredale, 1918 accepted as Tritia Risso, 1826
- Subgenus Nassa (Arcularia) Link, 1807 accepted as Nassarius Duméril, 1805
- Subgenus Nassa (Caesia) H. Adams & A. Adams, 1853 accepted as Nassarius (Caesia) H. Adams & A. Adams, 1853
- Subgenus Nassa (Demoulea) accepted as Demoulia Gray, 1838
- Subgenus Nassa (Demoulia) Gray, 1838 accepted as Demoulia Gray, 1838
- Subgenus Nassa (Desmoulaea) [sic] accepted as Demoulia Gray, 1838
- Subgenus Nassa (Desmoulea) accepted as Demoulia Gray, 1838
- Subgenus Nassa (Eione) Risso, 1826 accepted as Arcularia Link, 1807
- Subgenus Nassa (Gussonea) Monterosato, 1912 accepted as Tritia Risso, 1826
- Subgenus Nassa (Hannonia) Pallary, 1920 accepted as Tritia Risso, 1826
- Subgenus Nassa (Hebra) H. Adams & A. Adams, 1853 accepted as Hebra H. Adams & A. Adams, 1853
- Subgenus Nassa (Hima) [sic] accepted as Tritia Risso, 1826
- Subgenus Nassa (Hinia) Leach, 1847 accepted as Tritia Risso, 1826
- Subgenus Nassa (Ilyanassa) W. Stimpson, 1865 accepted as Tritia Risso, 1826
- Subgenus Nassa (Nassa) Lamarck, 1799 accepted as Tritia Risso, 1826
- Subgenus Nassa (Naytia) H. Adams & A. Adams, 1853 accepted as Naytia H. Adams & A. Adams, 1853
- Subgenus Nassa (Niotha) H. Adams & A. Adams, 1853 accepted as Nassarius Duméril, 1805
- Subgenus Nassa (Phos) Montfort, 1810 accepted as Phos Montfort, 1810
- Subgenus Nassa (Phrontis) H. Adams & A. Adams, 1853 accepted as Nassarius (Phrontis) H. Adams & A. Adams, 1853
- Subgenus Nassa (Profundinassa) Thiele, 1929 accepted as Nassarius Duméril, 1805
- Subgenus Nassa (Proneritula) Thiele, 1929 accepted as Tritia Risso, 1826
- Subgenus Nassa (Telasco) H. Adams & A. Adams, 1853 accepted as Tritia Risso, 1826
- Subgenus Nassa (Tritia) Risso, 1826 accepted as Tritia Risso, 1826
- Species Nassa (Tritia) borsodensis Csepreghy-Meznerics, 1969 †
- Species Nassa (Tritia) brychia R. B. Watson, 1882 accepted as Nassarius frigens (E. von Martens, 1878)
- Species Nassa (Tritia) coppingeri E. A. Smith, 1881 accepted as Nassarius coppingeri (E. A. Smith, 1881)
- Species Nassa (Tritia) costellifera A. Adams, 1853 accepted as Nassarius margaritifer (Dunker, 1847)
- Species Nassa (Tritia) dealbata A. Adams, 1852 accepted as Nassarius pyrrhus (Menke, 1843)
- Species Nassa (Tritia) ephamilla R. B. Watson, 1882 accepted as Nassa ephamilla R. B. Watson, 1882
- Species Nassa (Tritia) limata (Chemnitz, 1795) accepted as Tritia lima (Dillwyn, 1817)
- Species Nassa (Tritia) nivea A. Adams, 1852 accepted as Nassarius niveus (A. Adams, 1852)
- Species Nassa (Tritia) plicatella A. Adams, 1852 accepted as Nassarius niveus (A. Adams, 1852)
- Species Nassa (Tritia) restitutiana Fontannes, 1879 † accepted as Nassarius striatulus (Eichwald, 1829) †
- Species Nassa (Tritia) serraticosta (Bronn, 1831) † accepted as Nassarius serraticosta (Bronn, 1831) †
- Species Nassa (Tritia) trifasciata A. Adams, 1853 accepted as Nassarius vinctus (Marrat, 1877)
- Subgenus Nassa (Tritiaria) Conrad, 1865 † accepted as Tritiaria Conrad, 1865 †
- Subgenus Nassa (Tritonella) A. Adams, 1852 accepted as Nassarius (Hima) [sic]
- Subgenus Nassa (Uzita) H. Adams & A. Adams, 1853 accepted as Tritia Risso, 1826
- Subgenus Nassa (Venassa) E. von Martens, 1881 accepted as Nassarius (Zeuxis) H. Adams & A. Adams, 1853
- Subgenus Nassa (Zaphon) H. Adams & A. Adams, 1853 accepted as Caesia H. Adams & A. Adams, 1853
- Subgenus Nassa (Zeuxis) H. Adams & A. Adams, 1853 accepted as Nassarius (Zeuxis) H. Adams & A. Adams, 1853
- Species Nassa abnormis Coen, 1933 accepted as Nassarius nitidus (Jeffreys, 1867)
- Species Nassa abyssicola A. Adams, 1852 accepted as Nassarius abyssicola (A. Adams, 1852)
- Species Nassa abyssinica Marrat, 1877 accepted as Nassarius abyssinicus (Marrat, 1877)
- Species Nassa acinosa A. Gould, 1850 accepted as Nassarius gruneri (Dunker, 1846)
- Species Nassa acuminata Marrat, 1880 accepted as Nassarius acuminatus (Marrat, 1880)
- Species Nassa acuminata Bellardi, 1882 † accepted as Nassarius attiguus (Bellardi, 1882) †
- Species Nassa acuta Say, 1822 accepted as Nassarius acutus (Say, 1822)
- Species Nassa acutangula Marrat, 1877 accepted as Nassarius mendicus (A. Gould, 1850)
- Species Nassa acuticosta Montrouzier, 1864 accepted as Nassarius acuticostus (Montrouzier, 1864)
- Species Nassa acutidentata E. A. Smith, 1879 accepted as Nassarius multigranosus (Dunker, 1847)
- Species Nassa acutior Coen, 1933 accepted as Nassarius nitidus (Jeffreys, 1867)
- Species Nassa adamsiana Marrat, 1880 accepted as Nassarius albescens albescens (Dunker, 1846)
- Species Nassa aenigmatica W. H. Turton, 1932 accepted as Nassarius vinctus (Marrat, 1877)
- Species Nassa aethiopica Marrat, 1873 accepted as Nassarius aethiopicus (Marrat, 1873)
- Species Nassa afra (R. A. Philippi, 1851) accepted as Nassarius coronulus (A. Adams, 1852)
- Species Nassa agapeta R. B. Watson, 1882 accepted as Nassarius agapetus (R. B. Watson, 1882)
- Species Nassa agatensis Bellardi, 1882 † accepted as Nassarius agatensis (Bellardi, 1882) †
- Species Nassa akburunensis Andrusov, 1902 † accepted as Akburunella akburunensis (Andrusov, 1902) †
- Species Nassa alba Say, 1826 accepted as Phrontis alba (Say, 1826)
- Species Nassa albanyana W. H. Turton, 1932 accepted as Nassarius capensis (Dunker, 1846)
- Species Nassa albescens (Dunker, 1846) accepted as Nassarius albescens (Dunker, 1846)
- Species Nassa albina Thiele, 1930 accepted as Nassarius albinus (Thiele, 1930)
- Species Nassa albipunctata Reeve, 1853 accepted as Nassarius versicolor (C. B. Adams, 1852)
- Species Nassa albucianensis Bellardi, 1882 †
- Species Nassa alfurica P. J. Fischer, 1921 accepted as Nassarius alfuricus (P. J. Fischer, 1921)
- Species Nassa algida Reeve, 1853 accepted as Nassarius algidus (Reeve, 1853)
- Species Nassa altilis Bellardi, 1882 †
- Species Nassa alumensis Olsson, 1916 † accepted as Alectrion alumensis (Olsson, 1916) †
- Species Nassa amara Zhizhchenko, 1936 † accepted as Nassarius amarus Zhizhchenko, 1936 †
- Species Nassa analogica G. B. Sowerby III, 1903 accepted as Nassarius vinctus (Marrat, 1877)
- Species Nassa andonae Bellardi, 1882 † accepted as Tritia andonae (Bellardi, 1882) †
- Species Nassa andrei Basterot, 1825 † accepted as Aplus andrei (Basterot, 1825) †
- Species Nassa angolensis Odhner, 1923 accepted as Nassarius angolensis (Odhner, 1923)
- Species Nassa angulicostis Pilsbry & H. N. Lowe, 1932 accepted as Nassarius nodicinctus (A. Adams, 1852)
- Species Nassa angulifera A. Adams, 1852 accepted as Nassarius anguliferus (A. Adams, 1852)
- Species Nassa annelifera Reeve, 1853 accepted as Nassa annellifera Reeve, 1853
- Species Nassa annellifera Reeve, 1853 accepted as Phrontis alba (Say, 1826)
- Species Nassa anthracina Garrett, 1873 accepted as Nassarius moestus (Hinds, 1844)
- Species Nassa antillarum (A. d'Orbigny, 1847) accepted as Phrontis antillarum (A. d'Orbigny, 1847)
- Species Nassa antiqua Bellardi, 1882 † accepted as Nassarius antiquus (Bellardi, 1882) †
- Species Nassa antiquata R. B. Watson, 1897 accepted as Nassarius recidivus (E. von Martens, 1876)
- Species Nassa aperta Wolff, 1897 †
- Species Nassa approximata Pease, 1868 accepted as Nassarius olivaceus (Bruguière, 1789)
- Species Nassa aracanensis E. A. Smith, 1899 accepted as Nassarius sinusigerus (A. Adams, 1852)
- Species Nassa arcularia (Linnaeus, 1758) accepted as Nassarius arcularia (Linnaeus, 1758)
- Species Nassa areolata Bellardi, 1882 †
- Species Nassa argentea Marrat, 1877 accepted as Nassarius argenteus (Marrat, 1877)
- Species Nassa ariel Preston, 1910 accepted as Nassarius fretorum (Melvill & Standen, 1899)
- Species Nassa asperata Cocconi, 1873 †
- Species Nassa asperula (Brocchi, 1814) † accepted as Nassarius asperulus (Brocchi, 1814) †
- Species Nassa atava Bellardi, 1882 † accepted as Nassarius corrugatus (Brocchi, 1814) †
- Species Nassa attigua Bellardi, 1882 † accepted as Nassarius attiguus (Bellardi, 1882) †
- Species Nassa auingeri Hoernes, 1882 †
- Species Nassa australis A. Adams, 1853 accepted as Nassarius clarus (Marrat, 1877)
- Species Nassa babylonica R. B. Watson, 1882 accepted as Nassarius babylonicus (R. B. Watson, 1882)
- Species Nassa badensis (M. Hörnes, 1852) † accepted as Nassarius badensis (M. Hörnes, 1852) †
- Species Nassa badia A. Adams, 1852 accepted as Nassarius olivaceus (Bruguière, 1789)
- Species Nassa baguenai Giner Mari, 1934 accepted as Nassarius albescens (Dunker, 1846)
- Species Nassa bailyi Pilsbry & H. N. Lowe, 1932 accepted as Nassarius bailyi (Pilsbry & H. N. Lowe, 1932)
- Species Nassa balteata Pease, 1869 accepted as Reticunassa balteata (Pease, 1869)
- Species Nassa balteata Lischke, 1869 accepted as Nassarius sufflatus (A. Gould, 1860)
- Species Nassa basteroti Michelotti, 1847 † accepted as Tritia basteroti (Michelotti, 1847) †
- Species Nassa beata A. Gould, 1860 accepted as Nassarius sinusigerus (A. Adams, 1852)
- Species Nassa beaumontensis Aldrich, 1901 †
- Species Nassa becki W. H. Turton, 1932
- Species Nassa bella Marrat, 1877 accepted as Nassarius bellus (Marrat, 1877)
- Species Nassa bellula A. Adams, 1852 accepted as Nassarius bellulus (A. Adams, 1852)
- Species Nassa bicallosa E. A. Smith, 1876 accepted as Nassarius bicallosus (E. A. Smith, 1876)
- Species Nassa bicolor Hombron & Jacquinot, 1848 accepted as Nassarius albescens (Dunker, 1846)
- Species Nassa bicolorata Coen, 1933 accepted as Nassarius nitidus (Jeffreys, 1867)
- Species Nassa bifaria Baird, 1873 accepted as Nassarius bifarius (Baird, 1873)
- Species Nassa bimaculosa A. Adams, 1852 accepted as Nassarius bimaculosus (A. Adams, 1852)
- Species Nassa binominata Pilsbry, 1895 accepted as Nassarius sufflatus (A. Gould, 1860)
- Species Nassa bisotensis Depontaillier, 1879 †
- Species Nassa bistriatum Andrzejowski, 1833 † accepted as Nassarius doliolum (Eichwald, 1830) †
- Species Nassa bonellii (Sismonda, 1847) † accepted as Nassarius bonellii (Sismonda, 1847) †
- Species Nassa borelliana Bellardi, 1882 †
- Species Nassa bosphorana Andrusov, 1902 † accepted as Akburunella bosphorana (Andrusov, 1902) †
- Species Nassa bourguignati Locard, 1887 accepted as Tritia nitida (Jeffreys, 1867)
- Species Nassa bowerbanki Michelotti, 1847 †
- Species Nassa brugnonis Bellardi, 1882 † accepted as Tritia brugnonis (Bellardi, 1882) †
- Species Nassa brunneostoma Stearns, 1893 accepted as Nassarius brunneostoma (Stearns, 1893)
- Species Nassa brusinae Bellardi, 1882 †
- Species Nassa brychia R. B. Watson, 1882 accepted as Nassarius frigens (E. von Martens, 1878)
- Species Nassa bucculenta Marrat, 1880 accepted as Nassarius comptus (A. Adams, 1852)
- Species Nassa bucquoyi Locard, 1887 accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa bugellensis Bellardi, 1882 †
- Species Nassa bullata Marrat, 1877 accepted as Nassarius acuticostus (Montrouzier, 1864)
- Species Nassa burchardi (Dunker, 1849) accepted as Tritia burchardi (Dunker, 1849)
- Species Nassa caelata A. Adams, 1852 accepted as Nassarius caelatus (A. Adams, 1852)
- Species Nassa caerulea Marrat, 1880
- Species Nassa californiana P. P. Carpenter, 1856 sensu Arnold, 1903 accepted as Caesia delosi (Woodring, 1946)
- Species Nassa callosa A. Adams, 1852 accepted as Nassarius fraudulentus (Marrat, 1877)
- Species Nassa callospira A. Adams, 1852 accepted as Nassarius callospira (A. Adams, 1852)
- Species Nassa caloosaensis Dall, 1890 † accepted as Nassarius caloosaensis (Dall, 1890) †
- Species Nassa camelus E. von Martens, 1897 accepted as Nassarius camelus (E. von Martens, 1897)
- Species Nassa canaliculata Schumacher, 1817 accepted as Babylonia spirata (Linnaeus, 1758)
- Species Nassa cancellaroides Basterot, 1825 † accepted as Aplus cancellaroides (Basterot, 1825) †
- Species Nassa cancellata A. Adams, 1852 accepted as Nassarius jonasii (Dunker, 1846)
- Species Nassa cancellata Mörch, 1852 accepted as Tritia nitida (Jeffreys, 1867)
- Species Nassa candei (A. d'Orbigny, 1847) accepted as Nassarius candei (A. d'Orbigny, 1847)
- Species Nassa candens Hinds, 1844 accepted as Nassarius candens (Hinds, 1844)
- Species Nassa canescens C. B. Adams, 1852 accepted as Phrontis pagoda (Reeve, 1844)
- Species Nassa cantrainii Bellardi, 1882 †
- Species Nassa capensis (Dunker, 1846) accepted as Nassarius capensis (Dunker, 1846)
- Species Nassa capillaris R. B. Watson, 1882 accepted as Nassarius capillaris (R. B. Watson, 1882)
- Species Nassa cara Pilsbry & Olsson, 1941 † accepted as Nassarius gemmulosus (C. B. Adams, 1852)
- Species Nassa carinata W. H. Turton, 1932 accepted as Nassarius quantulus (A. Gould, 1860)
- Species Nassa casta A. Gould, 1850 accepted as Nassarius castus (A. Gould, 1850)
- Species Nassa catalaunica Almera & Bofill y Poch, 1898 † accepted as Nassarius elatus (A. Gould, 1845)
- Species Nassa catulli Bellardi, 1882 †
- Species Nassa cebuensis G. B. Sowerby III, 1901 accepted as Nassarius pupinoides (Reeve, 1853)
- Species Nassa celebensis Schepman, 1907 † accepted as Nassarius celebensis (Schepman, 1907)
- Species Nassa cepporum Bellardi, 1882 †
- Species Nassa cerotina A. Adams, 1852 accepted as Nassarius capensis (Dunker, 1846)
- Species Nassa cerritensis Arnold, 1903 accepted as Nassarius cerritensis (Arnold, 1903)
- Species Nassa chehalisensis C. E. Weaver, 1916 †
- Species Nassa chiereghinii Bellardi, 1882 † accepted as Nassarius chiereghinii (Bellardi, 1882) †
- Species Nassa cimbrica Ravn, 1907 † accepted as Tritia cimbrica (Ravn, 1907) †
- Species Nassa cincta Bellardi, 1882 †
- Species Nassa cinctella A. Adams, 1852 accepted as Nassarius cinctellus (A. Adams, 1852)
- Species Nassa cinctella A. Gould, 1850 accepted as Nassarius cinctellus (A. Gould, 1850)
- Species Nassa cingenda Marrat, 1880 accepted as Nassarius crenelliferus (A. Adams, 1852)
- Species Nassa cingulata F. W. Hutton, 1885 † accepted as Cominella cingulata (F. W. Hutton, 1885) †
- Species Nassa cinisculus Reeve, 1853 accepted as Phrontis polygonata (Lamarck, 1822)
- Species Nassa cinnamomea A. Adams, 1852 accepted as Nassarius cinnamomeus (A. Adams, 1852)
- Species Nassa circumcincta A. Adams, 1852 accepted as Nassarius circumcinctus (A. Adams, 1852)
- Species Nassa circumtexta E. von Martens, 1904 accepted as Nassarius vinctus (Marrat, 1877)
- Species Nassa clara Marrat, 1877 accepted as Nassarius clarus (Marrat, 1877)
- Species Nassa clathrata Lamarck, 1816 accepted as Nassarius conoidalis (Deshayes, 1833)
- Species Nassa clathrata (Born, 1778) accepted as Tritia clathrata (Born, 1778) †
- Species Nassa clathratula A. Adams, 1852 accepted as Phrontis alba (Say, 1826)
- Species Nassa clathurella Bellardi, 1882 †
- Species Nassa clauda Zhizhchenko, 1936 † accepted as Tritia serraticosta clauda (Zhizhchenko, 1936) †
- Species Nassa clodiensis Coen, 1933 accepted as Nassarius nitidus (Jeffreys, 1867)
- Species Nassa coarctata Eichwald, 1830 † accepted as Nassarius volhynicus (Andrzejowski, 1830) †
- Species Nassa cocchii Trentanove, 1911 † accepted as Nassarius agatensis (Bellardi, 1882) †
- Species Nassa coccinea G. B. Sowerby III, 1886 accepted as Nassarius kochianus (Dunker, 1846)
- Species Nassa cocconii Bellardi, 1882 †
- Species Nassa collaria C. B. Adams, 1852 accepted as Nassarius collarius (C. B. Adams, 1852)
- Species Nassa colorata (Eichwald, 1830) † accepted as Nassarius coloratus (Eichwald, 1830) †
- Species Nassa columbelloides Basterot, 1825 †
- Species Nassa compacta Angas, 1865 accepted as Reticunassa compacta (Angas, 1865)
- Species Nassa companyoi Fontannes, 1879 † accepted as Nassarius companyoi (Fontannes, 1879) †
- Species Nassa complanata Powys, 1835 accepted as Nassarius complanatus (Powys, 1835)
- Species Nassa compta A. Adams, 1852 accepted as Nassarius comptus (A. Adams, 1852)
- Species Nassa compta F. W. Hutton, 1877 † accepted as Tritia socialis (F. W. Hutton, 1885) †
- Species Nassa concentrica Marrat, 1874 accepted as Nassarius concinnus (Powys, 1835)
- Species Nassa concinna Powys, 1835 accepted as Nassarius concinnus (Powys, 1835)
- Species Nassa conglobata (Brocchi, 1814) † accepted as Demoulia conglobata (Brocchi, 1814) †
- Species Nassa consensa Ravenel, 1861 accepted as Nassarius consensus (Ravenel, 1861)
- Species Nassa contusa (Zhizhchenko, 1934) † accepted as Tritia contusa (Zhizhchenko, 1934) †
- Species Nassa cooperi Forbes, 1852 accepted as Nassarius mendicus (A. Gould, 1850)
- Species Nassa coralligena Pallary, 1900 accepted as Nassarius coralligenus (Pallary, 1900)
- Species Nassa cornelliana Olsson, 1914 † accepted as Alectrion cornelliana (Olsson, 1914) †
- Species Nassa coronata (Bruguière, 1798) accepted as Nassarius coronatus (Bruguière, 1789)
- Species Nassa coronata Nobre, 1884 accepted as Nassarius reticulatus (Linnaeus, 1758)
- Species Nassa coronula A. Adams, 1852 accepted as Nassarius coronulus (A. Adams, 1852)
- Species Nassa corpulenta C. B. Adams, 1852 accepted as Phrontis nassiformis (R. P. Lesson, 1842)
- Species Nassa corrugata A. Adams, 1852 accepted as Nassarius perpinguis (Hinds, 1844)
- Species Nassa corrupta Locard & Caziot, 1900 accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa corticata A. Adams, 1852 accepted as Nassarius niger (Hombron & Jacquinot, 1848)
- Species Nassa cossmanni Depontallier, 1878 † accepted as Nassarius elatus (A. Gould, 1845)
- Species Nassa costata A. Adams, 1852 accepted as Nassarius castus (A. Gould, 1850)
- Species Nassa costellata Grateloup, 1834 †
- Species Nassa costellifera A. Adams, 1853 accepted as Nassarius margaritifer (Dunker, 1847)
- Species Nassa costulata (Brocchi, 1814) sensu Bucquoy, Dautzenberg & Dollfus, 1882 accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa crassa (R. A. Philippi, 1849) accepted as Nassarius semisulcatus (Hombron & Jacquinot, 1848)
- Species Nassa crassigranosa Tate, 1888 † accepted as Nassarius crassigranosus (Tate, 1888) †
- Species Nassa crassiuscula Bellardi, 1882 † accepted as Nassarius crassiusculus (Bellardi, 1882) †
- Species Nassa crawfordi G. B. Sowerby III, 1892 accepted as Nassarius kochianus (Dunker, 1846)
- Species Nassa crebresulcata Bellardi, 1882 † accepted as Nassarius crebresulcatus (Bellardi, 1882) †
- Species Nassa crebricostulata Bellardi, 1882 † accepted as Nassarius elabratus (Doderlein, 1864) †
- Species Nassa crebrilineata Hombron & Jacquinot, 1848 accepted as Nassarius concinnus (Powys, 1835)
- Species Nassa crebristriata P. P. Carpenter, 1857 accepted as Nassarius versicolor (C. B. Adams, 1852)
- Species Nassa cremata Hinds, 1844 accepted as Nassarius crematus (Hinds, 1844)
- Species Nassa crenata Hinds, 1844 accepted as Nassarius crematus (Hinds, 1844)
- Species Nassa crenellifera A. Adams, 1852 accepted as Nassarius crenelliferus (A. Adams, 1852)
- Species Nassa crenolirata A. Adams, 1852 accepted as Nassarius crenoliratus (A. Adams, 1852)
- Species Nassa crenulata (Bruguière, 1789) accepted as Nassarius crenulatus (Bruguière, 1789)
- Species Nassa crenulata Lamarck, 1816 accepted as Nassarius scalaris (A. Adams, 1852)
- Species Nassa cribaria Marrat, 1877 accepted as Nassarius concinnus (Powys, 1835)
- Species Nassa crispata Marrat, 1877 accepted as Nassarius arcularia plicatus (Röding, 1798)
- Species Nassa crossei Maltzan, 1884 accepted as Nassarius dakarensis (Fischer-Piette & Nicklès, 1946)
- Species Nassa crypsigona Fontannes, 1879 † accepted as Nassarius macrodon (Bronn, 1831) †
- Species Nassa cumingii A. Adams, 1852 accepted as Nassarius conoidalis (Deshayes, 1833)
- Species Nassa curta A. Gould, 1850 accepted as Hebra horrida (Dunker, 1847)
- Species Nassa cuvieri [sic] accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa cuvierii (Payraudeau, 1826) accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa cyllenoides Sacco, 1890 †
- Species Nassa danconae Bellardi, 1882 †
- Species Nassa dautzembergi Mari, 1928 accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa dautzenbergi De Gregorio, 1885 accepted as Nassarius corniculum (Olivi, 1792)
- Species Nassa dautzenbergi Harmer, 1914 † accepted as Nassarius dollfusii Harmer, 1914 †
- Species Nassa dealbata A. Adams, 1852 accepted as Nassarius pyrrhus (Menke, 1843)
- Species Nassa decorata Marrat, 1880 accepted as Nassarius gemmulosus (C. B. Adams, 1852)
- Species Nassa delicata Reeve, 1854 accepted as Nassarius incrassatus (Strøm, 1768)
- Species Nassa delicata A. Adams, 1852 accepted as Nassarius delicatus (A. Adams, 1852)
- Species Nassa delosi Woodring, 1946 accepted as Caesia delosi (Woodring, 1946)
- Species Nassa denegablis Preston, 1914 accepted as Nassarius subconstrictus (G. B. Sowerby III, 1899)
- Species Nassa densicostata A. Bell, 1871 †
- Species Nassa densigranata Reeve, 1854 accepted as Nassarius splendidulus (Dunker, 1846)
- Species Nassa denticulata A. Adams, 1852 accepted as Nassarius denticulatus (A. Adams, 1852)
- Species Nassa dentifera Powys, 1835 accepted as Nassarius dentifer (Powys, 1835)
- Species Nassa deprompta Bellardi, 1882 †
- Species Nassa dermestina A. Gould, 1860 accepted as Reticunassa dermestina (A. Gould, 1860)
- Species Nassa dertonensis Bellardi, 1882 † accepted as Nassarius striatulus (Eichwald, 1829) †
- Species Nassa deshayesiana Issel, 1865 accepted as Nassarius deshayesianus (Issel, 1865)
- Species Nassa deshayesii Drouët, 1858 accepted as Nassarius incrassatus (Strøm, 1768)
- Species Nassa deshayesii Hombron & Jacquinot, 1848 accepted as Nassarius deshayesii (Hombron & Jacquinot, 1848)
- Species Nassa desmouleoides G. B. Sowerby III, 1903 accepted as Nassarius desmoulioides (G. B. Sowerby III, 1903)
- Species Nassa desmoulioides G. B. Sowerby III, 1903 accepted as Nassarius desmoulioides (G. B. Sowerby III, 1903)
- Species Nassa desnoyersi Basterot, 1825 † accepted as Cyllene desnoyersi (Basterot, 1825) †
- Species Nassa dijki K. Martin, 1895 accepted as Nassarius dijki (K. Martin, 1895)
- Species Nassa diluta E. A. Smith, 1899 accepted as Nassarius dilutus (E. A. Smith, 1899)
- Species Nassa dispar A. Adams, 1852 accepted as Nassarius graphiterus (Hombron & Jacquinot, 1848)
- Species Nassa dispar Millet, 1865 † accepted as Aplus dispar (Millet, 1865) †
- Species Nassa disparilis E. A. Smith, 1903 accepted as Nassarius disparilis (E. A. Smith, 1903)
- Species Nassa dissimilis R. B. Watson, 1886 accepted as Tritia ephamilla (R. B. Watson, 1882)
- Species Nassa distorta A. Adams, 1852 accepted as Nassarius distortus (A. Adams, 1852)
- Species Nassa doliolum Eichwald, 1830 † accepted as Nassarius doliolum (Eichwald, 1830) †
- Species Nassa dollfusii Harmer, 1914 † accepted as Nassarius dollfusii Harmer, 1914 †
- Species Nassa dominula Tapparone Canefri, 1874 accepted as Nassarius multigranosus (Dunker, 1847)
- Species Nassa dorsata (Röding, 1798) accepted as Nassarius dorsatus (Röding, 1798)
- Species Nassa dorsuosa A. Adams, 1852 accepted as Nassarius pullus (Linnaeus, 1758)
- Species Nassa dujardini (Deshayes, 1844) † accepted as Nassarius dujardini (Deshayes, 1844) †
- Species Nassa ebenacea Gennari, 1866 accepted as Nassarius mutabilis (Linnaeus, 1758)
- Species Nassa echinata A. Adams, 1852 accepted as Nassarius echinatus (A. Adams, 1852)
- Species Nassa ecstilba Melvill & Standen, 1896 accepted as Nassarius ecstilbus (Melvill & Standen, 1896)
- Species Nassa edwardsi P. Fischer, 1882 accepted as Nassarius turulosus (Risso, 1826)
- Species Nassa eichwaldi Friedberg, 1911 † accepted as Nassarius eichwaldi (Friedberg, 1911) †
- Species Nassa elabrata Doderlein, 1864 † accepted as Nassarius elabratus (Doderlein, 1864) †
- Species Nassa elata A. Gould, 1845 accepted as Nassarius elatus (A. Gould, 1845)
- Species Nassa elongata Marrat, 1874 accepted as Nassarius castus (A. Gould, 1850)
- Species Nassa elongatula Locard, 1886 accepted as Nassarius pygmaeus (Lamarck, 1822)
- Species Nassa emiliana (Mayer, 1872) †
- Species Nassa encaustica Brusina, 1869 accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa ennurensis Preston, 1916 accepted as Nassarius orissaensis (Preston, 1914)
- Species Nassa ephamilla R. B. Watson, 1882 accepted as Nassarius ephamillus (R. B. Watson, 1882)
- Species Nassa erecta W. H. Turton, 1932 accepted as Nassarius kochianus (Dunker, 1846)
- Species Nassa erythrea Issel, 1869 accepted as Reticunassa erythraea (Issel, 1869)
- Species Nassa eucosmia W. H. Turton, 1932 accepted as Nassarius kochianus (Dunker, 1846)
- Species Nassa euglypta G. B. Sowerby III, 1914 accepted as Nassarius euglyptus (G. B. Sowerby III, 1914)
- Species Nassa eusulcata G. B. Sowerby III, 1902 accepted as Nassarius eusulcatus (G. B. Sowerby III, 1902)
- Species Nassa eutacta Locard, 1887 accepted as Tritia pygmaea (Lamarck, 1822)
- Species Nassa exigua Hombron & Jacquinot, 1848 accepted as Hebra oberwimmeri (Preston, 1907)
- Species Nassa exigua (Brocchi, 1814) †
- Species Nassa exilis Powys, 1835 accepted as Nassarius exilis (Powys, 1835)
- Species Nassa eximia H. Adams, 1872 accepted as Nassarius eximius (H. Adams, 1872)
- Species Nassa explorata O. Boettger, 1906 † accepted as Tritia karreri (R. Hoernes & Auinger, 1882) †
- Species Nassa exstinctelirata P. J. Fischer, 1921 † accepted as Nassarius exstincteliratus (P. J. Fischer, 1921) †
- Species Nassa exulata E. A. Smith, 1911 accepted as Nassarius exulatus (E. A. Smith, 1911)
- Species Nassa facki Koenen, 1872 † accepted as Tritia facki (Koenen, 1872) †
- Species Nassa fasciata Chemnitz, 1780 accepted as Nassarius stolatus (Gmelin, 1791)
- Species Nassa fasciata Mörch, 1852 accepted as Nassarius stolatus (Gmelin, 1791)
- Species Nassa fasciata (Lamarck, 1822) accepted as Nassarius pyrrhus (Menke, 1843)
- Species Nassa fenestrata Marrat, 1877 accepted as Nassarius fenistratus (Marrat, 1877)
- Species Nassa fenistrata Marrat, 1877 accepted as Nassarius fenistratus (Marrat, 1877)
- Species Nassa ferruginea Marrat, 1880 accepted as Nassarius marratii (E. A. Smith, 1876)
- Species Nassa ferussaci (Payraudeau, 1826) accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa festiva Powys, 1835 accepted as Nassarius festivus (Powys, 1835)
- Species Nassa ficaratiensis Monterosato, 1891 † accepted as Nassarius ficaratiensis (Monterosato, 1891) †
- Species Nassa fida Reeve, 1853 accepted as Nassarius fidus (Reeve, 1853)
- Species Nassa filmerae G. B. Sowerby III, 1900 accepted as Nassarius filmerae (G. B. Sowerby III, 1900)
- Species Nassa filosa A. Adams, 1852 accepted as Nassarius reeveanus (Dunker, 1847)
- Species Nassa filosa Reeve, 1853 accepted as Nassarius filosus (Reeve, 1853)
- Species Nassa fissilabris A. Adams, 1852 accepted as Nassarius fissilabris (A. Adams, 1852)
- Species Nassa flammulata Preston, 1909 accepted as Nassarius gayii (Kiener, 1834)
- Species Nassa flammulata Schepman, 1911 accepted as Nassarius comptus (A. Adams, 1852)
- Species Nassa flava Marrat, 1877 accepted as Nassarius corniculum (Olivi, 1792)
- Species Nassa fontainei A. d'Orbigny, 1841 accepted as Nassarius exilis (Powys, 1835)
- Species Nassa forestii Bellardi, 1882 †
- Species Nassa formosa W. H. Turton, 1932 accepted as Nassarius formosus (W. H. Turton, 1932)
- Species Nassa fossae Preston, 1915 accepted as Nassarius fossae (Preston, 1915)
- Species Nassa foveolata (Dunker, 1847) accepted as Nassarius foveolatus (Dunker, 1847)
- Species Nassa fragum Hombron & Jacquinot, 1848 accepted as Nassarius gruneri (Dunker, 1846)
- Species Nassa fratercula Dunker, 1860 accepted as Nassarius fraterculus (Dunker, 1860)
- Species Nassa fraterculus Dunker, 1860 accepted as Reticunassa fratercula (Dunker, 1860)
- Species Nassa fraudulenta Marrat, 1877 accepted as Nassarius fraudulentus (Marrat, 1877)
- Species Nassa fretensis Perkins, 1869 accepted as Nassarius vibex (Say, 1822)
- Species Nassa fretorum Melvill & Standen, 1899 accepted as Nassarius fretorum (Melvill & Standen, 1899)
- Species Nassa frigens E. von Martens, 1878 accepted as Nassarius frigens (E. von Martens, 1878)
- Species Nassa fuchsi Koenen, 1872 † accepted as Nassarius fuchsi (Koenen, 1872) †
- Species Nassa fufana P. J. Fischer, 1921 † accepted as Nassarius fufanus (P. J. Fischer, 1921) †
- Species Nassa fusca Hombron & Jacquinot, 1848 accepted as Nassarius fuscus (Hombron & Jacquinot, 1848)
- Species Nassa fuscoalba W. H. Turton, 1932 accepted as Nassarius kochianus (Dunker, 1846)
- Species Nassa fuscolineata E. A. Smith, 1875 accepted as Nassarius fuscolineatus (E. A. Smith, 1875)
- Species Nassa gallandiana P. Fischer, 1862 accepted as Nassarius elatus (A. Gould, 1845)
- Species Nassa gallica Peyrot, 1925 † accepted as Nassarius incognitus (Peyrot, 1925) †
- Species Nassa gaudiosa Hinds, 1844 accepted as Nassarius gaudiosus (Hinds, 1844)
- Species Nassa gemmulata (Lamarck, 1822) accepted as Nassarius conoidalis (Deshayes, 1833)
- Species Nassa gemmulifera A. Adams, 1852 accepted as Nassarius gemmuliferus (A. Adams, 1852)
- Species Nassa gemmulosa C. B. Adams, 1852 accepted as Nassarius gemmulosus (C. B. Adams, 1852)
- Species Nassa geniculata A. Adams, 1852 accepted as Nassarius cinctellus (A. Gould, 1850)
- Species Nassa gerstenbrandti Preston, 1908 accepted as Nassarius ecstilbus (Melvill & Standen, 1896)
- Species Nassa gestroi Hornung, 1920 † accepted as Tritia gestroi (Hornung, 1920) †
- Species Nassa gibba M. E. Gray, 1850 accepted as Nassarius mutabilis (Linnaeus, 1758)
- Species Nassa gibberula Marrat, 1877 accepted as Nassarius corniculum (Olivi, 1792)
- Species Nassa gibbosula (Linnaeus, 1758) accepted as Nassarius gibbosulus (Linnaeus, 1758)
- Species Nassa gibbsii W. Cooper, 1859 accepted as Nassarius mendicus (A. Gould, 1850)
- Species Nassa gigantula (Michelotti, 1840) † accepted as Nassarius gigantulus (Michelotti, 1840) †
- Species Nassa glabella Marrat, 1877 accepted as Nassarius bicallosus (E. A. Smith, 1876)
- Species Nassa glabrata A. Adams, 1853 accepted as Nassarius vittatus (A. Adams, 1853)
- Species Nassa glauca C. B. Adams, 1852 accepted as Phrontis versicolor (C. B. Adams, 1852)
- Species Nassa globosa G. B. Sowerby I, 1825 accepted as Demoulia abbreviata (Gmelin, 1791)
- Species Nassa globosa (Quoy & Gaimard, 1833) accepted as Nassarius globosus (Quoy & Gaimard, 1833)
- Species Nassa glomus Monterosato, 1890 accepted as Nassarius recidivus (E. von Martens, 1876)
- Species Nassa goreensis Maltzan, 1884 accepted as Nassarius goreensis (Maltzan, 1884)
- Species Nassa gracilis Pease, 1868 accepted as Nassarius gracilis (Pease, 1868)
- Species Nassa granifera (Kiener, 1834) accepted as Nassarius graniferus (Kiener, 1834)
- Species Nassa graniformis Locard, 1886 accepted as Nassarius granum (Lamarck, 1822)
- Species Nassa granosocostata Schepman, 1911 accepted as Nassarius granosocostatus (Schepman, 1911)
- Species Nassa granulata (J. Sowerby, 1815) †
- Species Nassa granulosa Marrat, 1880 accepted as Nassarius splendidulus (Dunker, 1846)
- Species Nassa granum (Lamarck, 1822) accepted as Nassarius granum (Lamarck, 1822)
- Species Nassa graphitera Beck, 1877 accepted as Nassarius gaudiosus (Hinds, 1844)
- Species Nassa graphitera Hombron & Jacquinot, 1848 accepted as Nassarius graphiterus (Hombron & Jacquinot, 1848)
- Species Nassa grata Marrat, 1880
- Species Nassa gregaria Grabau & S. G. King, 1928 accepted as Nassarius gregarius (Grabau & S. G. King, 1928)
- Species Nassa gruneri (Dunker, 1846) accepted as Nassarius gruneri (Dunker, 1846)
- Species Nassa guadelupensis Petit de la Saussaye, 1852 accepted as Engoniophos unicinctus (Say, 1826)
- Species Nassa guaymasensis Pilsbry & H. N. Lowe, 1932 accepted as Nassarius guaymasensis (Pilsbry & H. N. Lowe, 1932)
- Species Nassa guernei Locard, 1886 accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa hanleyana Marrat, 1880 accepted as Nassarius catallus (Dall, 1908)
- Species Nassa harpularia Marrat, 1877 accepted as Nassarius harpularia (Marrat, 1877)
- Species Nassa haveri Michelotti, 1847 † accepted as Duplicata haueri (Michelotti, 1847) †
- Species Nassa helleri Giner Mari, 1929 accepted as Nassarius helleri (Giner Mari, 1929)
- Species Nassa helvetica Peyrot, 1925 † accepted as Tritia mutabilis (Linnaeus, 1758)
- Species Nassa hepatica (Pulteney, 1799) accepted as Buccinum hepaticum Pulteney, 1799
- Species Nassa heynemanni Maltzan, 1884 accepted as Nassarius heynemanni (Maltzan, 1884)
- Species Nassa hispida A. Adams, 1852 accepted as Nassarius gruneri (Dunker, 1846)
- Species Nassa hoernesi (Mayer, 1864) † accepted as Nassarius striatulus (Eichwald, 1829) †
- Species Nassa horrida (Dunker, 1847) accepted as Hebra horrida (Dunker, 1847)
- Species Nassa hotessieriana A. d'Orbigny, 1844 accepted as Phrontis hotessieriana (A. d'Orbigny, 1844)
- Species Nassa hypertropha O. Boettger, 1906 † accepted as Tritia karreri (R. Hoernes & Auinger, 1882) †
- Species Nassa hypolia Pilsbry, 1895 accepted as Nassarius hypolius (Pilsbry, 1895)
- Species Nassa idyllia Melvill & Standen, 1901 accepted as Nassarius idyllius (Melvill & Standen, 1901)
- Species Nassa inaequicostata Bellardi, 1882 †
- Species Nassa incognita Thiele, 1925 accepted as Nassarius castus (A. Gould, 1850)
- Species Nassa incognita Peyrot, 1925 † accepted as Nassarius incognitus (Peyrot, 1925) †
- Species Nassa inconspicua G. B. Sowerby I, 1847 †
- Species Nassa incrassata (Strøm, 1768) accepted as Nassarius incrassatus (Strøm, 1768)
- Species Nassa inflata Locard & Caziot, 1900 accepted as Cyclope neritea (Linnaeus, 1758)
- Species Nassa infralaevis P. J. Fischer, 1921 † accepted as Nassarius infralaevis (P. J. Fischer, 1921) †
- Species Nassa innocens Thiele, 1925 accepted as Nassarius himeroessa (Melvill & Standen, 1903)
- Species Nassa inornata Zhizhchenko, 1936 † accepted as Nassarius dujardini (Deshayes, 1844) †
- Species Nassa insculpta P. P. Carpenter, 1864 accepted as Nassarius insculptus (P. P. Carpenter, 1864)
- Species Nassa insolita Millet, 1865 † accepted as Tritia spectabilis (Nyst, 1845) †
- Species Nassa instabilis Bellardi, 1882 † accepted as Nassarius instabilis (Bellardi, 1882) †
- Species Nassa intercisa (Gené, 1840) †
- Species Nassa interjecta Locard, 1886 accepted as Nassarius incrassatus (Strøm, 1768)
- Species Nassa interlirata E. A. Smith, 1876 accepted as Nassarius interliratus (E. A. Smith, 1876)
- Species Nassa intermedia Forbes, 1844 accepted as Nassarius incrassatus (Strøm, 1768)
- Species Nassa intermedia Dunker, 1866 accepted as Nassarius glans (Linnaeus, 1758)
- Species Nassa interposita Bellardi, 1882 †
- Species Nassa interstincta Marrat, 1878 accepted as Tritia elata (A. Gould, 1845)
- Species Nassa interstriata Conrad, 1855 † accepted as Caesia perpinguis (Hinds, 1844)
- Species Nassa isabellei Reeve, 1853 accepted as Nassarius gemmuliferus (A. Adams, 1852)
- Species Nassa isabellei (A. d'Orbigny, 1839) accepted as Parvanachis isabellei (A. d'Orbigny, 1839)
- Species Nassa isomera Locard, 1886 accepted as Nassarius reticulatus (Linnaeus, 1758)
- Species Nassa italica Issel, 1870 accepted as Cyclope neritea (Linnaeus, 1758)
- Species Nassa iwakiana Yokoyama, 1931 † accepted as Coraeophos iwakiana (Yokoyama, 1931) †
- Species Nassa jacksoniana (Quoy & Gaimard, 1833) accepted as Nassarius jacksonianus (Quoy & Gaimard, 1833)
- Species Nassa japonica A. Adams, 1852 accepted as Nassarius japonicus (A. Adams, 1852)
- Species Nassa japonica Lischke, 1868 accepted as Nassarius sufflatus (A. Gould, 1860)
- Species Nassa javana Schepman, 1891 accepted as Nassarius javanus (Schepman, 1891)
- Species Nassa johni Monterosato, 1889 accepted as Nassarius johni (Monterosato, 1889)
- Species Nassa jonasii (Dunker, 1846) accepted as Nassarius jonasii (Dunker, 1846)
- Species Nassa jousseaumei Locard, 1886 accepted as Nassarius incrassatus (Strøm, 1768)
- Species Nassa jucunda Preston, 1908 accepted as Nassarius disparilis (E. A. Smith, 1903)
- Species Nassa kampeni Koperberg, 1931 † accepted as Nassarius crebricostatus (Schepman, 1911)
- Species Nassa keenii Marrat, 1877 accepted as Nassarius keenii (Marrat, 1877)
- Species Nassa kempi Preston, 1916 accepted as Nassarius agapetus (R. B. Watson, 1882)
- Species Nassa kennardi Harmer, 1914 †
- Species Nassa kieneri Deshayes, 1863 accepted as Nassarius seclusus (P. Fischer, 1891)
- Species Nassa kochiana (Dunker, 1846) accepted as Nassarius kochianus (Dunker, 1846)
- Species Nassa kraussi W. H. Turton, 1932 accepted as Nassarius capensis (Dunker, 1846)
- Species Nassa kraussiana (Dunker, 1846) accepted as Nassarius kraussianus (Dunker, 1846)
- Species Nassa kuesteri Krauss, 1848 accepted as Nassarius kraussianus (Dunker, 1846)
- Species Nassa labecula A. Adams, 1852 accepted as Nassarius burchardi (Dunker, 1849)
- Species Nassa labellum Bonelli, 1847 †
- Species Nassa labiata A. Adams, 1853 accepted as Nassarius labiatus (A. Adams, 1853)
- Species Nassa labida Reeve, 1854 accepted as Nassarius foveolatus (Dunker, 1847)
- Species Nassa labordei Giner Mari, 1929 accepted as Nassarius labordei (Giner Mari, 1929)
- Species Nassa lachrymosa Reeve, 1853 accepted as Nassarius distortus (A. Adams, 1852)
- Species Nassa lactea Marrat, 1880 accepted as Nassarius castus (A. Gould, 1850)
- Species Nassa laevigata Marrat, 1877 accepted as Nassarius bicallosus (E. A. Smith, 1876)
- Species Nassa laevis Mörch, 1852 accepted as Nassarius dorsatus (Röding, 1798)
- Species Nassa laevissima (Bronn, 1831) sensu Brusina, 1877 † accepted as Tritia kostejana kostejana (O. Boettger, 1902) †
- Species Nassa lamellilabra (Nyst, 1835) † accepted as Nassarius lamellilabrus (Nyst, 1835) †
- Species Nassa lamonganana K. Martin, 1884 † accepted as Distorsio reticularis (Linnaeus, 1758)
- Species Nassa lathraia Sturany, 1900 accepted as Nassarius mundus (Sturany, 1900)
- Species Nassa laticostata Marrat, 1877
- Species Nassa lauta Marrat, 1880 accepted as Nassarius stimpsonianus (C. B. Adams, 1852)
- Species Nassa lecadrei de Folin, 1867 accepted as Phrontis versicolor (C. B. Adams, 1852)
- Species Nassa lentiginosa A. Adams, 1852 accepted as Nassarius reeveanus (Dunker, 1847)
- Species Nassa leptospira A. Adams, 1852 accepted as Nassarius leptospira (A. Adams, 1852)
- Species Nassa leucops Pilsbry & H. N. Lowe, 1932 accepted as Nassarius brunneostoma (Stearns, 1893)
- Species Nassa levukensis R. B. Watson, 1882 accepted as Nassarius castus (A. Gould, 1850)
- Species Nassa liberiensis Knudsen, 1956 accepted as Nassarius liberiensis (Knudsen, 1956)
- Species Nassa ligustica Bellardi, 1882 † accepted as Nassarius ligusticus (Bellardi, 1882) †
- Species Nassa lilacina A. Gould, 1852 accepted as Nassarius gaudiosus (Hinds, 1844)
- Species Nassa limata (Chemnitz, 1795) accepted as Nassarius lima (Dillwyn, 1817)
- Species Nassa lineolata Grateloup, 1834 † accepted as Dorsanum lineolatum (Grateloup, 1834) †
- Species Nassa lirata Marrat, 1874 accepted as Nassarius niger (Hombron & Jacquinot, 1848)
- Species Nassa lirata Dunker, 1860 accepted as Reticunassa festiva (Powys, 1835)
- Species Nassa lirella Reeve, 1853 accepted as Nassarius pauperatus (Lamarck, 1822)
- Species Nassa livescens (R. A. Philippi, 1849) accepted as Nassarius livescens (R. A. Philippi, 1849)
- Species Nassa livida J. E. Gray, 1826 accepted as Nassarius dorsatus (Röding, 1798)
- Species Nassa lucida Marat, 1874
- Species Nassa luctuosa A. Adams, 1852 accepted as Nassarius luctuosus (A. Adams, 1852)
- Species Nassa lunata Say, 1826 accepted as Astyris lunata (Say, 1826)
- Species Nassa lurida A. Gould, 1850 accepted as Nassarius graphiterus (Hombron & Jacquinot, 1848)
- Species Nassa luteostoma Broderip & G. B. Sowerby I, 1829 accepted as Nassarius luteostoma (Broderip & G. B. Sowerby I, 1829)
- Species Nassa lyraeformis Marrat, 1880 accepted as Nassarius lyraeformis (Marrat, 1880)
- Species Nassa mabillei Locard, 1887 accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa maculata A. Adams, 1853 accepted as Nassarius vittatus (A. Adams, 1853)
- Species Nassa madeirensis Reeve, 1854 accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa madiunensis K. Martin, 1895 † accepted as Nassarius madiunensis (K. Martin, 1895) †
- Species Nassa madseni Knudsen, 1956 accepted as Nassarius pumilio (E. A. Smith, 1872)
- Species Nassa maldivensis E. A. Smith, 1903 accepted as Nassarius castus (A. Gould, 1850)
- Species Nassa mamillata Preston, 1907 accepted as Reticunassa tringa (Souverbie, 1864)
- Species Nassa mamillata (Risso, 1826) accepted as Nassarius nitidus (Jeffreys, 1867)
- Species Nassa mangelioides Reeve, 1853 accepted as Nassarius jonasii (Dunker, 1846)
- Species Nassa margaritifera (Dunker, 1847) accepted as Nassarius margaritiferus (Dunker, 1847)
- Species Nassa margaritifera sensu Reeve, 1853 accepted as Nassarius provulgatus (P. Fischer, 1891)
- Species Nassa marginulata (Lamarck, 1822) sensu Reeve, 1853 accepted as Nassarius humboldti Gili & H. H. Kool, 2022
- Species Nassa marmorea A. Adams, 1852 accepted as Nassarius marmoreus (A. Adams, 1852)
- Species Nassa marratii E. A. Smith, 1876 accepted as Nassarius marratii (E. A. Smith, 1876)
- Species Nassa martensi Thiele, 1925 accepted as Nassarius crematus (Hinds, 1844)
- Species Nassa mediterranea Risso, 1826 accepted as Nassarius mutabilis (Linnaeus, 1758)
- Species Nassa megastoma Bellardi, 1882 † accepted as Nassarius megastoma (Bellardi, 1882) †
- Species Nassa melanioides Reeve, 1853 accepted as Nassarius fuscus (Hombron & Jacquinot, 1848)
- Species Nassa mendica A. Gould, 1850 accepted as Nassarius mendicus (A. Gould, 1850)
- Species Nassa micans A. Adams, 1852 accepted as Nassarius micans (A. Adams, 1852)
- Species Nassa microstoma Pease, 1860 accepted as Reticunassa microstoma (Pease, 1860)
- Species Nassa minor Marrat, 1877 accepted as Nassarius pumilio (E. A. Smith, 1872)
- Species Nassa minor Weinkauff, 1868 accepted as Tritia neritea (Linnaeus, 1758)
- Species Nassa minutula Thiele, 1930 accepted as Nassarius celebensis (Schepman, 1907)
- Species Nassa miocenica Michelotti, 1847 † accepted as Cyllenina ancillariaeformis (Grateloup, 1834) †
- Species Nassa miocenica-obliqua (Shvets, 1912) † accepted as Nassarius miocenicusobliquus (Shvets, 1912) †
- Species Nassa miser (Dall, 1908) accepted as Nassarius miser (Dall, 1908)
- Species Nassa mitralis A. Adams, 1852 accepted as Nassarius fuscus (Hombron & Jacquinot, 1848)
- Species Nassa mitrella De Gregorio, 1885 accepted as Nassarius corniculum (Olivi, 1792)
- Species Nassa modesta Millet, 1865 † accepted as Tritia blesensis (Mayer, 1862) †
- Species Nassa moesta Hinds, 1844 accepted as Nassarius moestus (Hinds, 1844)
- Species Nassa monile (Kiener, 1834) accepted as Nassarius distortus (A. Adams, 1852)
- Species Nassa monilifera Coen, 1933 accepted as Nassarius nitidus (Jeffreys, 1867)
- Species Nassa morleti Crosse, 1867 accepted as Nassarius fossatus (A. Gould, 1850)
- Species Nassa mucronata A. Adams, 1852 accepted as Nassarius gaudiosus (Hinds, 1844)
- Species Nassa muelleri Maltzan, 1884 accepted as Nassarius muelleri (Maltzan, 1884)
- Species Nassa muiri Barnard, 1959 accepted as Nassarius quantulus (A. Gould, 1860)
- Species Nassa multicostata A. Adams, 1852 accepted as Nassarius multicostatus (A. Adams, 1852)
- Species Nassa multigrana [sic] accepted as Nassarius multigranosus (Dunker, 1847)
- Species Nassa multiplicata Schepman, 1907 accepted as Nassarius multicostatus (A. Adams, 1852)
- Species Nassa multisulcata Michelotti, 1847 †
- Species Nassa mulukuensis E. A. Smith, 1903 accepted as Nassarius mulukuensis (E. A. Smith, 1903)
- Species Nassa munda Sturany, 1900 accepted as Nassarius mundus (Sturany, 1900)
- Species Nassa munieriana Crosse, 1864 accepted as Nassarius nigellus (Reeve, 1854)
- Species Nassa muricata (Quoy & Gaimard, 1833) accepted as Nassarius horridus (Dunker, 1847)
- Species Nassa musiva A. Gould, 1850 accepted as Nassarius limnaeiformis (Dunker, 1847)
- Species Nassa mustelina A. Gould, 1860 accepted as Nassarius mustelina (A. Gould, 1860)
- Species Nassa mutabilis (Linnaeus, 1758) accepted as Nassarius mutabilis (Linnaeus, 1758)
- Species Nassa myristicata Hinds, 1844 accepted as Nassarius myristicatus (Hinds, 1844)
- Species Nassa nana A. Adams, 1852 accepted as Nassarius nanus (A. Adams, 1852)
- Species Nassa nanggulanensis K. Martin, 1914 † accepted as Tritia nanggulanensis (K. Martin, 1914) †
- Species Nassa natalensis E. A. Smith, 1903 accepted as Nassarius natalensis (E. A. Smith, 1903)
- Species Nassa neglecta Bellardi, 1882 † accepted as Nassarius elatus (A. Gould, 1845)
- Species Nassa neritea (Linnaeus, 1758) accepted as Cyclope neritea (Linnaeus, 1758)
- Species Nassa neritoides Lamarck, 1816 accepted as Cyclope neritea (Linnaeus, 1758)
- Species Nassa neutra (V. P. Kolesnikov, 1932) † accepted as Dorsanum neutrum (V. P. Kolesnikov, 1932) †
- Species Nassa nevilliana Preston, 1906 accepted as Nassarius gayii (Kiener, 1834)
- Species Nassa newcombei J. C. Merriam, 1897 †
- Species Nassa nigella Reeve, 1854 accepted as Nassarius nigellus (Reeve, 1854)
- Species Nassa nigra Hombron & Jacquinot, 1848 accepted as Hebra nigra (Hombron & Jacquinot, 1848)
- Species Nassa nigrolabra A. E. Verrill, 1880 accepted as Nassarius nigrolabrus (A. E. Verrill, 1880)
- Species Nassa nitida Jeffreys, 1867 accepted as Tritia nitida (Jeffreys, 1867)
- Species Nassa nitidula Marrat, 1880 accepted as Nassarius dorsatus (Röding, 1798)
- Species Nassa nivea A. Adams, 1852 accepted as Nassarius niveus (A. Adams, 1852)
- Species Nassa nivosa Marrat, 1877 accepted as Nassarius splendidulus (Dunker, 1846)
- Species Nassa nobilis Thiele, 1925 accepted as Nassarius nobilis (Thiele, 1925)
- Species Nassa nodata Hinds, 1844 accepted as Nassarius festivus (Powys, 1835)
- Species Nassa nodicincta A. Adams, 1852 accepted as Nassarius nodicinctus (A. Adams, 1852)
- Species Nassa nodicostata A. Adams, 1852 accepted as Nassarius nodicostatus (A. Adams, 1852)
- Species Nassa nodifera Powys, 1835 accepted as Nassarius nodiferus (Powys, 1835)
- Species Nassa nodosa Marrat, 1880 accepted as Nassarius fraterculus (Dunker, 1860)
- Species Nassa nodulosa Marrat, 1873 accepted as Nassarius nodulosus (Marrat, 1873)
- Species Nassa northiae J. E. Gray, 1833 accepted as Northia northiae (J. E. Gray, 1833)
- Species Nassa notanda Bellardi, 1882 †
- Species Nassa nova Bellardi, 1882 † accepted as Nassarius elabratus (Doderlein, 1864) †
- Species Nassa novaezelandiae Reeve, 1854 accepted as Nassarius novaezelandiae (Reeve, 1854)
- Species Nassa nucea Pease, 1869 accepted as Nassarius nuceus (Pease, 1869)
- Species Nassa nucleolus Reeve, 1854 accepted as Nassarius versicolor (C. B. Adams, 1852)
- Species Nassa oberwimmeri Preston, 1907 accepted as Hebra oberwimmeri (Preston, 1907)
- Species Nassa obesa G. Nevill & H. Nevill, 1875 accepted as Nassarius obesus (G. Nevill & H. Nevill, 1875)
- Species Nassa obesa Bellardi, 1882 † accepted as Nassarius obesus (Bellardi, 1882) †
- Species Nassa obliqua Pease, 1865 accepted as Nassarius oneratus (Deshayes, 1863)
- Species Nassa obliqua Hombron & Jacquinot, 1848 accepted as Nassarius oneratus (Deshayes, 1863)
- Species Nassa obliquata A. Adams, 1852
- Species Nassa obliquata (Brocchi, 1814) † accepted as Nassarius obliquatus (Brocchi, 1814) †
- Species Nassa oblonga Marrat, 1877 accepted as Nassarius oblongus (Marrat, 1877)
- Species Nassa oblonga Mörch, 1852 accepted as Nassarius reticulatus (Linnaeus, 1758)
- Species Nassa obockensis (Jousseaume, 1888) accepted as Nassarius deshayesianus (Issel, 1865)
- Species Nassa obsoleta Say, 1822 accepted as Ilyanassa obsoleta (Say, 1822)
- Species Nassa obtusa Marrat, 1880 accepted as Demoulia ventricosa (Lamarck, 1816)
- Species Nassa obtusata A. Adams, 1852 accepted as Nassarius albus (Say, 1826)
- Species Nassa olivacea (Bruguière, 1789) accepted as Nassarius olivaceus (Bruguière, 1789)
- Species Nassa olivii Bellardi, 1882 † accepted as Tritia semistriata (Brocchi, 1814) †
- Species Nassa onerata Deshayes, 1863 accepted as Nassarius oneratus (Deshayes, 1863)
- Species Nassa onerato [sic] accepted as Nassarius oneratus (Deshayes, 1863)
- Species Nassa optata A. Gould, 1860 accepted as Nassarius nigellus (Reeve, 1854)
- Species Nassa optima G. B. Sowerby III, 1903 accepted as Nassarius optimus (G. B. Sowerby III, 1903)
- Species Nassa orbiculata A. Adams, 1852 accepted as Nassarius kraussianus (Dunker, 1846)
- Species Nassa ordinaria W. H. Turton, 1932 accepted as Nassarius capensis (Dunker, 1846)
- Species Nassa oriens Marrat, 1880 accepted as Nassarius castus (A. Gould, 1850)
- Species Nassa orissaensis Preston, 1914 accepted as Nassarius orissaensis (Preston, 1914)
- Species Nassa ornata (Kiener, 1834) accepted as Nassarius stolatus (Gmelin, 1791)
- Species Nassa ovoidea Locard, 1886 accepted as Nassarius ovoideus (Locard, 1886)
- Species Nassa ovum K. Martin, 1879 † accepted as Nassarius ovum (K. Martin, 1879) †
- Species Nassa ovum Cossmann, 1903 †
- Species Nassa pachychilus Maltzan, 1884 accepted as Nassarius pachychilus (Maltzan, 1884)
- Species Nassa pagoda (Reeve, 1844) accepted as Phrontis pagoda (Reeve, 1844)
- Species Nassa pallida Powys, 1835 accepted as Engoniophos unicinctus (Say, 1826)
- Species Nassa pallidula A. Adams, 1852 accepted as Nassarius dorsatus (Röding, 1798)
- Species Nassa panamensis C. B. Adams, 1852 accepted as Nassarius exilis (Powys, 1835)
- Species Nassa papillosa (Linnaeus, 1758) accepted as Nassarius papillosus (Linnaeus, 1758)
- Species Nassa particeps (Hedley, 1915) accepted as Nassarius particeps (Hedley, 1915)
- Species Nassa parva Marrat, 1880 accepted as Nassarius cinctellus (A. Gould, 1850)
- Species Nassa parvula G. B. Sowerby I, 1847 †
- Species Nassa patricia Thiele, 1925 accepted as Nassarius patricius (Thiele, 1925)
- Species Nassa paucicostata Marrat, 1877 accepted as Nassarius paucicostatus (Marrat, 1877)
- Species Nassa paupera A. Gould, 1850 accepted as Reticunassa paupera (A. Gould, 1850)
- Species Nassa pauperata (Lamarck, 1822) accepted as Nassarius pauperatus (Lamarck, 1822)
- Species Nassa pediculina A. Gould, 1860
- Species Nassa pedroana Conrad, 1855 †
- Species Nassa percrassa Giner Mari, 1934 accepted as Nassarius semisulcatus (Hombron & Jacquinot, 1848)
- Species Nassa peritrema Tenison Woods, 1879 accepted as Nassarius nigellus (Reeve, 1854)
- Species Nassa perlata Marrat, 1880 accepted as Nassarius graniferus (Kiener, 1834)
- Species Nassa perligera Thiele, 1925 accepted as Nassarius bellus (Marrat, 1877)
- Species Nassa perpinguis Hinds, 1844 accepted as Caesia perpinguis (Hinds, 1844)
- Species Nassa perpulchra Bellardi, 1882 †
- Species Nassa perrara Bellardi, 1882 †
- Species Nassa persica E. von Martens, 1874 accepted as Nassarius persicus (E. von Martens, 1874)
- Species Nassa phoenicensis Preston, 1916 accepted as Nassarius sinusigerus (A. Adams, 1852)
- Species Nassa picta (Dunker, 1846) accepted as Nassarius pictus (Dunker, 1846)
- Species Nassa picturata Marrat, 1880 accepted as Nassarius versicolor (C. B. Adams, 1852)
- Species Nassa pinguis A. Adams, 1853 accepted as Demoulia obtusata (Link, 1807)
- Species Nassa pinnata Bellardi, 1882 † accepted as Nassarius elatus (A. Gould, 1845)
- Species Nassa planaxiformis Grateloup, 1834 †
- Species Nassa planicostata Bellardi, 1882 † accepted as Nassarius angulatus (Brocchi, 1814) †
- Species Nassa planocostata A. Adams, 1852 accepted as Nassarius foveolatus (Dunker, 1847)
- Species Nassa plebecula A. Gould, 1860 accepted as Reticunassa plebecula (A. Gould, 1860)
- Species Nassa plebeja Thiele, 1925 accepted as Nassarius plebejus (Thiele, 1925)
- Species Nassa plicatella A. Adams, 1852 accepted as Nassarius niveus (A. Adams, 1852)
- Species Nassa plicatella A. Gould, 1862
- Species Nassa plicosa (Dunker, 1846) accepted as Nassarius speciosus (A. Adams, 1852)
- Species Nassa poecilosticta E. A. Smith, 1904 accepted as Nassarius kochianus (Dunker, 1846)
- Species Nassa poirieri Locard, 1887 accepted as Nassarius reticulatus (Linnaeus, 1758)
- Species Nassa polita Marrat, 1880 accepted as Nassarius comptus (A. Adams, 1852)
- Species Nassa polygonata Reeve, 1853 accepted as Nassarius nassiformis (R. P. Lesson, 1842)
- Species Nassa ponderosa Reeve, 1854 accepted as Demoulia obtusata (Link, 1807)
- Species Nassa porrecta Bellardi, 1882 †
- Species Nassa praecedens Bellardi, 1882 †
- Species Nassa praelonga Monterosato, 1891 accepted as Nassarius lima (Dillwyn, 1817)
- Species Nassa praepodolica (Zhizhchenko, 1934) †
- Species Nassa proavia Bellardi, 1882 †
- Species Nassa producta G. B. Sowerby III, 1897 accepted as Nassarius neoproductus H. H. Kool & H. Dekker, 2007
- Species Nassa producta Bellardi, 1882 † accepted as Tritia producta (Bellardi, 1882) †
- Species Nassa prolongata W. H. Turton, 1932 accepted as Nassarius capensis (Dunker, 1846)
- Species Nassa provulgata P. Fischer, 1891 accepted as Nassarius provulgatus (P. Fischer, 1891)
- Species Nassa proxima C. B. Adams, 1852 accepted as Phrontis versicolor (C. B. Adams, 1852)
- Species Nassa pseudoclathrata Michelotti, 1847 †
- Species Nassa pseudoconcinna E. A. Smith, 1895 accepted as Nassarius pseudoconcinnus (E. A. Smith, 1895)
- Species Nassa psila R. B. Watson, 1882 accepted as Nassarius psila (R. B. Watson, 1882)
- Species Nassa pulchella A. Adams, 1852 accepted as Nassarius capensis (Dunker, 1846)
- Species Nassa pulchella A. Bell, 1871 †
- Species Nassa pulcherrima Marrat, 1877 accepted as Nassarius crematus (Hinds, 1844)
- Species Nassa pulla (Linnaeus, 1758) accepted as Nassarius pullus (Linnaeus, 1758)
- Species Nassa pumila Harmer, 1914 † accepted as Nassarius dollfusii Harmer, 1914 †
- Species Nassa pumilio E. A. Smith, 1872 accepted as Nassarius pumilio (E. A. Smith, 1872)
- Species Nassa punctata A. Adams, 1852 accepted as Nassarius punctatus (A. Adams, 1852)
- Species Nassa pupinoides Reeve, 1853 accepted as Nassarius pupinoides (Reeve, 1853)
- Species Nassa pupoides Bellardi, 1882 †
- Species Nassa pura Marrat, 1877 accepted as Nassarius albus (Say, 1826)
- Species Nassa pusilla Marrat, 1880 accepted as Nassarius succinctus (A. Adams, 1852)
- Species Nassa pusio A. Adams, 1852 accepted as Nassarius fretorum (Melvill & Standen, 1899)
- Species Nassa pygmaea (Lamarck, 1822) accepted as Nassarius pygmaeus (Lamarck, 1822)
- Species Nassa pyramidalis A. Adams, 1853 accepted as Nassarius pyramidalis (A. Adams, 1853)
- Species Nassa pyrenaica Fontannes, 1879 † accepted as Tritia pyrenaica (Fontannes, 1879) †
- Species Nassa quadrasi Hidalgo, 1904 accepted as Nassarius quadrasi (Hidalgo, 1904)
- Species Nassa quadrata Marrat, 1880 accepted as Nassarius deshayesii (Hombron & Jacquinot, 1848)
- Species Nassa quantula A. Gould, 1860 accepted as Nassarius quantulus (A. Gould, 1860)
- Species Nassa quercina Marrat, 1880 accepted as Nassarius quercinus (Marrat, 1880)
- Species Nassa quinquecostata Marrat, 1880 accepted as Nassarius albus (Say, 1826)
- Species Nassa quoyii Hombron & Jacquinot, 1848 accepted as Nassarius margaritifer (Dunker, 1847)
- Species Nassa ranida A. Adams, 1852 accepted as Nassarius crematus (Hinds, 1844)
- Species Nassa ravida A. Adams, 1852 accepted as Nassa ranida A. Adams, 1852
- Species Nassa recta Dollfus & Dautzenberg, 1886 † accepted as Nassarius rectus (Dollfus & Dautzenberg, 1886) †
- Species Nassa reevei A. Adams, 1852 accepted as Nassarius fossatus (A. Gould, 1850)
- Species Nassa renovata Monterosato, 1878 accepted as Nassarius denticulatus (A. Adams, 1852)
- Species Nassa reposta A. Gould, 1860
- Species Nassa restitutiana (Fontannes, 1879) † accepted as Tritia restitutiana (Fontannes, 1879) †
- Species Nassa retecosa A. Adams, 1852 accepted as Nassarius albescens albescens (Dunker, 1846)
- Species Nassa reticulata (Linnaeus, 1758) accepted as Tritia reticulata (Linnaeus, 1758)
- Species Nassa retusa (Lamarck, 1822) accepted as Demoulia ventricosa (Lamarck, 1816)
- Species Nassa reussi K. Martin, 1879 † accepted as Nassarius reussi (K. Martin, 1879) †
- Species Nassa rhysonepia Barnard, 1969 accepted as Seilopsis peilei (E. A. Smith, 1910)
- Species Nassa rideli Peyrot, 1925 † accepted as Nassarius rectus (Dollfus & Dautzenberg, 1886) †
- Species Nassa ringens Reeve, 1854 accepted as Nassarius conoidalis (Deshayes, 1833)
- Species Nassa ringens (Michelotti, 1840) †
- Species Nassa rissoides Marrat, 1877 accepted as Chauvetia candidissima (R. A. Philippi, 1836)
- Species Nassa rissoides Grateloup, 1834 † accepted as Retizafra rissoides (Grateloup, 1834) †
- Species Nassa rochebrunei Locard, 1887 accepted as Nassarius nitidus (Jeffreys, 1867)
- Species Nassa rosacea Reeve, 1854 accepted as Nassarius incrassatus (Strøm, 1768)
- Species Nassa rotundicostata Marrat, 1877 accepted as Nassarius concinnus (Powys, 1835)
- Species Nassa rubricata A. Gould, 1850 accepted as Nassarius gayii (Kiener, 1834)
- Species Nassa rufocincta A. Adams, 1852 accepted as Nassarius versicolor (C. B. Adams, 1852)
- Species Nassa rufolineata Marrat, 1880 accepted as Nassarius nassiformis (R. P. Lesson, 1842)
- Species Nassa rugosa Marrat, 1877
- Species Nassa rusticorum Davitashvili, 1932 † accepted as Nassarius tamanensis (Davitashvili, 1932) †
- Species Nassa rutilans Reeve, 1853 accepted as Nassarius dorsatus (Röding, 1798)
- Species Nassa saccoi Trentanove, 1911 † accepted as Nassarius agatensis (Bellardi, 1882) †
- Species Nassa saccoi Bandat, 1943 †
- Species Nassa sadurnii Bot, 1972 accepted as Nassarius wolffi (Knudsen, 1956)
- Species Nassa sanctaehelenae A. Adams, 1852 accepted as Nassarius sanctaehelenae (A. Adams, 1852)
- Species Nassa sanctahelenae [sic] accepted as Nassarius sanctahelenae [sic]
- Species Nassa saucatsensis Peyrot, 1925 † accepted as Tritia saucatsensis (Peyrot, 1925) †
- Species Nassa saxatilis Brusina, 1870 accepted as Nassarius incrassatus (Strøm, 1768)
- Species Nassa scabriuscula Powys, 1835 accepted as Nassarius scabriusculus (Powys, 1835)
- Species Nassa scalarina Marrat, 1877 accepted as Nassarius scalarinus (Marrat, 1877)
- Species Nassa scalaris A. Adams, 1852 accepted as Nassarius scalaris (A. Adams, 1852)
- Species Nassa scalaris Andrusov, 1902 † accepted as Akburunella caucasica (Kudriavtzev, 1928) †
- Species Nassa scalaris Borson, 1825 † accepted as Nassarius scalaris (Borson, 1825) †
- Species Nassa scissurata Dall, 1889 accepted as Nassarius scissuratus (Dall, 1889)
- Species Nassa scopularca Barnard, 1959 † accepted as Nassarius niveus (A. Adams, 1852)
- Species Nassa scrobiculata Zhizhchenko, 1936 † accepted as Tritia scrobiculata (Zhizhchenko, 1936) †
- Species Nassa sculpta Marrat, 1877 accepted as Nassarius trinodosus (E. A. Smith, 1876)
- Species Nassa seclusa P. Fischer, 1891 accepted as Nassarius seclusus (P. Fischer, 1891)
- Species Nassa semicostata Locard, 1887 accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa semicostulata Bellardi, 1882 †
- Species Nassa semigranosa (Dunker, 1846) accepted as Nassarius nigellus (Reeve, 1854)
- Species Nassa seminulum Tapparone Canefri, 1875
- Species Nassa semiplicata A. Adams, 1852 accepted as Nassarius sinarum (R. A. Philippi, 1851)
- Species Nassa semiplicata A. Adams, 1852 sensu Reeve, 1853 accepted as Nassarius fraterculus (Dunker, 1860)
- Species Nassa semirugosa Bellardi, 1882 †
- Species Nassa semistriata (Brocchi, 1814) † accepted as Tritia semistriata (Brocchi, 1814) †
- Species Nassa semisulcata Dunker, 1867 accepted as Nassarius gaudiosus (Hinds, 1844)
- Species Nassa semisulcata Hombron & Jacquinot, 1848 accepted as Nassarius semisulcatus (Hombron & Jacquinot, 1848)
- Species Nassa semitexta Hedley, 1899 accepted as Stosicia bourguignati (Issel, 1869)
- Species Nassa senegalensis Maltzan, 1884 accepted as Nassarius senegalensis (Maltzan, 1884)
- Species Nassa serotina A. Adams, 1852 accepted as Nassarius capensis (Dunker, 1846)
- Species Nassa serraticosta (Bronn, 1831) † accepted as Nassarius serraticosta (Bronn, 1831) †
- Species Nassa sertula A. Adams, 1852 accepted as Nassarius haldemani (Dunker, 1847)
- Species Nassa servaini Locard, 1887 accepted as Nassarius nitidus (Jeffreys, 1867)
- Species Nassa sesarma Marrat, 1877 accepted as Nassarius sesarmus (Marrat, 1877)
- Species Nassa shawi Preston, 1909 accepted as Nassarius obesus (G. Nevill & H. Nevill, 1875)
- Species Nassa simplex E. A. Smith, 1880 accepted as Nassarius tango F. Scarabino, 2004
- Species Nassa sinensis Marrat, 1877 accepted as Nassarius castus (A. Gould, 1850)
- Species Nassa sinusigera A. Adams, 1852 accepted as Nassarius sinusigerus (A. Adams, 1852)
- Species Nassa siquijorensis A. Adams, 1852 accepted as Nassarius siquijorensis (A. Adams, 1852)
- Species Nassa sistroidea G. Nevill & H. Nevill, 1874 accepted as Hebra subspinosa (Lamarck, 1822)
- Species Nassa slieswicia Rasmussen, 1966 † accepted as Tritia slieswicia (Rasmussen, 1966) †
- Species Nassa smithii Marrat, 1877 accepted as Nassarius smithii (Marrat, 1877)
- Species Nassa socialis F. W. Hutton, 1885 † accepted as Tritia socialis (F. W. Hutton, 1885) †
- Species Nassa solida Hidalgo, 1904 accepted as Nassarius niger (Hombron & Jacquinot, 1848)
- Species Nassa solida Bell, 1898 † accepted as Nassarius solidus (Bell, 1898) †
- Species Nassa solidula Guppy, 1866 † accepted as Phos solidulus (Guppy, 1866) †
- Species Nassa sordida A. Adams, 1852 accepted as Nassarius sordidus (A. Adams, 1852)
- Species Nassa soror Giner Mari, 1929 accepted as Nassarius helleri (Giner Mari, 1929)
- Species Nassa sparta Marrat, 1877 accepted as Nassarius corniculum (Olivi, 1792)
- Species Nassa speciosa A. Adams, 1852 accepted as Nassarius speciosus (A. Adams, 1852)
- Species Nassa speciosa Bellardi, 1882 † accepted as Nassarius taurinospeciosus Harzhauser & Cernohorsky, 2011 †
- Species Nassa spiraliscabra Chapman & Gabriel, 1914 † accepted as Nassarius spiraliscabrus (Chapman & Gabriel, 1914) †
- Species Nassa spirata A. Adams, 1852 accepted as Nassarius spiratus (A. Adams, 1852)
- Species Nassa sporadica Sturany, 1900 accepted as Nassarius mundus (Sturany, 1900)
- Species Nassa spurca A. Gould, 1860 accepted as Nassarius spurcus (A. Gould, 1860)
- Species Nassa steindachneri Sturany, 1900 accepted as Nassarius thaumasius (Sturany, 1900)
- Species Nassa stigmaria A. Adams, 1852 accepted as Nassarius stigmarius (A. Adams, 1852)
- Species Nassa stiphra Sturany, 1900 accepted as Nassarius agapetus (R. B. Watson, 1882)
- Species Nassa stolata (Gmelin, 1791) accepted as Nassarius stolatus (Gmelin, 1791)
- Species Nassa stolida A. Adams, 1852 accepted as Nassarius nodiferus (Powys, 1835)
- Species Nassa striata C. B. Adams, 1852 accepted as Nassarius striatus (C. B. Adams, 1852)
- Species Nassa striata A. Adams, 1853 accepted as Nassarius pupinoides (Reeve, 1853)
- Species Nassa sturmii Reeve, 1853 accepted as Nassarius natalensis (E. A. Smith, 1903)
- Species Nassa subcancellata W. H. Turton, 1932 accepted as Clathranachis angusta (G. B. Sowerby III, 1886)
- Species Nassa subcaudata Bellardi, 1882 †
- Species Nassa subclathrata A. d'Orbigny, 1852 accepted as Nassarius clathratus (Born, 1778) †
- Species Nassa subconstricta G. B. Sowerby III, 1899 accepted as Nassarius subconstrictus (G. B. Sowerby III, 1899)
- Species Nassa subcostulata Locard, 1886 accepted as Nassarius cuvierii (Payraudeau, 1826)
- Species Nassa subecostata Bellardi, 1882 † accepted as Nassarius elabratus (Doderlein, 1864) †
- Species Nassa subhoernesi Zhizhchenko, 1936 † accepted as Nassarius striatulus (Eichwald, 1829) †
- Species Nassa sublaevigata Bellardi, 1882 †
- Species Nassa sublirella Tate, 1888 † accepted as Nassarius sublirellus (Tate, 1888) †
- Species Nassa subquadrangularis Michelotti, 1847 †
- Species Nassa subsimilis E. A. Smith, 1906
- Species Nassa subspinosa (Lamarck, 1822) accepted as Nassarius subspinosus (Lamarck, 1822)
- Species Nassa subtranslucida E. A. Smith, 1903 accepted as Nassarius subtranslucidus (E. A. Smith, 1903)
- Species Nassa subventricosa Peyrot, 1925 †
- Species Nassa succincta A. Adams, 1852 accepted as Nassarius succinctus (A. Adams, 1852)
- Species Nassa sufflata A. Gould, 1860 accepted as Nassarius sufflatus (A. Gould, 1860)
- Species Nassa sulcifera A. Adams, 1852 accepted as Nassarius arcularia plicatus (Röding, 1798)
- Species Nassa sulculata Bellardi, 1882 †
- Species Nassa sumatrana Thiele, 1925 accepted as Nassarius sumatranus (Thiele, 1925)
- Species Nassa suturalis (Lamarck, 1822) accepted as Nassarius glans (Linnaeus, 1758)
- Species Nassa tabescens Marrat, 1880 accepted as Nassarius tabescens (Marrat, 1880)
- Species Nassa taenia (Gmelin, 1791) accepted as Nassarius olivaceus (Bruguière, 1789)
- Species Nassa tamanensis Davitashvili, 1932 † accepted as Nassarius tamanensis (Davitashvili, 1932) †
- Species Nassa tarbellica Grateloup, 1834 † accepted as Keepingia tarbellica (Grateloup, 1834) †
- Species Nassa tasmanica Tenison Woods, 1876 accepted as Nassarius nigellus (Reeve, 1854)
- Species Nassa tatei Tenison Woods, 1879 † accepted as Tritia tatei (Tenison Woods, 1879) †
- Species Nassa taurinorum Bellardi, 1882 †
- Species Nassa tegula Reeve, 1853 accepted as Nassarius tiarula (Kiener, 1841)
- Species Nassa tenella Reeve, 1854 accepted as Nassarius incrassatus (Strøm, 1768)
- Species Nassa tenuis E. A. Smith, 1875 accepted as Nassarius roissyi (Deshayes, 1833)
- Species Nassa terebralis Grateloup, 1834 † accepted as Costoanachis terebralis (Grateloup, 1834) †
- Species Nassa terebroides Reeve, 1853 accepted as Nassarius labiatus (A. Adams, 1853)
- Species Nassa teretiuscula A. Adams, 1852 accepted as Nassarius teretiusculus (A. Adams, 1852)
- Species Nassa tersa Bellardi, 1882 † accepted as Tritia pyrenaica (Fontannes, 1879) †
- Species Nassa tessellata (Bonelli, 1840) †
- Species Nassa textilis Bellardi, 1882 †
- Species Nassa thaumasia Sturany, 1900 accepted as Nassarius thaumasius (Sturany, 1900)
- Species Nassa thersites (Bruguière, 1789) accepted as Nassarius pullus (Linnaeus, 1758)
- Species Nassa tiarula (Kiener, 1841) accepted as Nassarius tiarula (Kiener, 1841)
- Species Nassa tingitana Pallary, 1901 accepted as Tritia tingitana (Pallary, 1901)
- Species Nassa townsendi Dall, 1890 accepted as Nassarius townsendi (Dall, 1890)
- Species Nassa transitans Bellardi, 1882 † accepted as Nassarius elatus (A. Gould, 1845)
- Species Nassa trifasciata A. Adams, 1853 accepted as Nassarius vinctus (Marrat, 1877)
- Species Nassa trifasciata (Gmelin, 1791) accepted as Nassarius dorsatus (Röding, 1798)
- Species Nassa trifasciata A. Adams, 1853 sensu Mc Andrew, 1857 accepted as Nassarius ovoideus (Locard, 1886)
- Species Nassa tringa Souverbie, 1864 accepted as Reticunassa tringa (Souverbie, 1864)
- Species Nassa trinodosa E. A. Smith, 1876 accepted as Nassarius trinodosus (E. A. Smith, 1876)
- Species Nassa tristis Preston, 1908 accepted as Nassarius moestus (Hinds, 1844)
- Species Nassa trivittata Say, 1822 accepted as Ilyanassa trivittata (Say, 1822)
- Species Nassa tryoni Crosse, 1869 accepted as Demoulia tryoni (Crosse, 1869)
- Species Nassa tschudii Troschel, 1852 accepted as Nassarius dentifer (Powys, 1835)
- Species Nassa tumida Bellardi, 1882 † accepted as Nassarius turgens (Bellardi, 1882) †
- Species Nassa tumida Eichwald, 1830 † accepted as Nassarius zborzewskii (Andrzejowski, 1830) †
- Species Nassa turbinea A. Gould, 1845 accepted as Nassarius turbineus (A. Gould, 1845)
- Species Nassa turbinellus (Brocchi, 1814) † accepted as Tritia turbinella (Brocchi, 1814) †
- Species Nassa turgens Bellardi, 1882 † accepted as Nassarius turgens (Bellardi, 1882) †
- Species Nassa turgida (Bucquoy, Dautzenberg & Dollfus, 1882) accepted as Tritia cuvierii (Payraudeau, 1826)
- Species Nassa turgidula Bellardi, 1882 †
- Species Nassa turrifera E. A. Smith, 1895 accepted as Nassarius babylonicus (R. B. Watson, 1882)
- Species Nassa turrita A. Adams, 1852 accepted as Nassarius clathratus (Born, 1778) †
- Species Nassa turrita Borson, 1820 †
- Species Nassa undata Marrat, 1877 accepted as Nassarius perpinguis (Hinds, 1844)
- Species Nassa unicincta Say, 1826 accepted as Engoniophos unicinctus (Say, 1826)
- Species Nassa unicolor accepted as Buccinum unicolorum Kiener, 1834
- Species Nassa unicolorata (Kiener, 1834) accepted as Nassarius dorsatus (Röding, 1798)
- Species Nassa valliculata Locard, 1886 accepted as Nassarius incrassatus (Strøm, 1768)
- Species Nassa varians Dunker, 1860 accepted as Mitrella bicincta (A. Gould, 1860)
- Species Nassa varicifera A. Adams, 1852 accepted as Nassarius variciferus (A. Adams, 1852)
- Species Nassa varicosecostata P. J. Fischer, 1921 † accepted as Nassarius varicosecostatus (P. J. Fischer, 1921) †
- Species Nassa variegata A. Adams, 1852 accepted as Nassarius conoidalis (Deshayes, 1833)
- Species Nassa vaucheri Pallary, 1906 accepted as Naytia vaucheri (Pallary, 1906)
- Species Nassa veneris (Faujas de Saint-Fond, 1817) † accepted as Dorsanum veneris (Faujas de Saint-Fond, 1817) †
- Species Nassa ventricosa Lamarck, 1816 accepted as Demoulia ventricosa ventricosa (Lamarck, 1816)
- Species Nassa venusta (Dunker, 1847) accepted as Nassarius venustus (Dunker, 1847)
- Species Nassa venusta Harmer, 1914 †
- Species Nassa verrucosa A. Adams, 1852 accepted as Nassarius conoidalis (Deshayes, 1833)
- Species Nassa verrucosa (Gmelin, 1791) sensu Brocchi, 1814 †
- Species Nassa verrucosa (Gmelin, 1791 sensu Brocchi, 1814) †
- Species Nassa versicolor C. B. Adams, 1852 accepted as Phrontis versicolor (C. B. Adams, 1852)
- Species Nassa vibex Reeve, 1853 accepted as Nassarius niger (Hombron & Jacquinot, 1848)
- Species Nassa vibex Say, 1822 accepted as Phrontis vibex (Say, 1822)
- Species Nassa vidalensis Barnard, 1959 accepted as Nassarius vidalensis (Barnard, 1959)
- Species Nassa vincta Marrat, 1877 accepted as Nassarius vinctus (Marrat, 1877)
- Species Nassa vitiensis Hombron & Jacquinot, 1848 accepted as Nassarius vitiensis (Hombron & Jacquinot, 1848)
- Species Nassa vitrea Gray, 1838
- Species Nassa vittata A. Adams, 1853 accepted as Nassarius vittatus (A. Adams, 1853)
- Species Nassa volhynica Andrzejowski, 1830 † accepted as Nassarius volhynicus (Andrzejowski, 1830) †
- Species Nassa watsoni Kobelt, 1887 accepted as Nassarius conspersus (R. A. Philippi, 1849)
- Species Nassa webbei Marrat, 1877 accepted as Nassarius muelleri (Maltzan, 1884)
- Species Nassa weyersii Craven, 1882 accepted as Nassarius pumilio (E. A. Smith, 1872)
- Species Nassa wilsoni C. B. Adams, 1852 accepted as Nassarius wilsoni (C. B. Adams, 1852)
- Species Nassa wolffi Knudsen, 1956 accepted as Nassarius wolffi (Knudsen, 1956)
- Species Nassa woodwardi Forbes, 1852 accepted as Nassarius mendicus (A. Gould, 1850)
- Species Nassa woodwardi Harmer, 1914 † accepted as Nassarius dollfusii Harmer, 1914 †
- Species Nassa xanthostoma Gray, 1839 accepted as Nassarius luteostoma (Broderip & G. B. Sowerby I, 1829)
- Species Nassa xesta Sturany, 1900 accepted as Nassarius thaumasius (Sturany, 1900)
- Species Nassa zailensis G. B. Sowerby III, 1894 accepted as Nassarius deshayesianus (Issel, 1865)
- Species Nassa zborzewskii Andrzejowski, 1830 † accepted as Nassarius zborzewskii (Andrzejowski, 1830) †
- Species Nassa zonalis A. Adams, 1852 accepted as Nassarius reeveanus (Dunker, 1847)
- Species Nassa zorritense (E. T. Nelson, 1870) † accepted as Buccinanops (Perunassa) zorritense (Nelson, 1870) †
- Species Nassa zorritensis (E. T. Nelson, 1870) † accepted as Nassa zorritense (E. T. Nelson, 1870) †
- Genus Nassarius Duméril, 1805 (508)
- Genus Nassodonta H. Adams, 1867 (2)
- Genus Naytia H. Adams & A. Adams, 1853 (6)
- Genus Naytiopsis Thiele, 1929 accepted as Tritia Risso, 1826
- Genus Neritula H. Adams & A. Adams, 1853 accepted as Cyclope Risso, 1826
- Genus Niotha H. Adams & A. Adams, 1853 accepted as Nassarius (Niotha) H. Adams & A. Adams, 1853
- Genus Pallacera Woodring, 1964 accepted as Nassarius (Pallacera) Woodring, 1964
- Genus Panormella O. G. Costa, 1840 accepted as Cyclope Risso, 1826
- Genus Parcanassa Iredale, 1936 accepted as Tritia Risso, 1826
- Genus Phrontis H. Adams & A. Adams, 1853 (14)
- Genus Plicarcularia Thiele, 1929 accepted as Nassarius (Plicarcularia) Thiele, 1929
- Genus Profundinassa Thiele, 1929 accepted as Nassarius (Profundinassa) Thiele, 1929
- Genus Proneritula Thiele, 1929 accepted as Tritia Risso, 1826
- Genus Psilarius Woodring, 1964 † (4)
- Genus Pygmaeonassa Annandale, 1924 accepted as Nassarius (Pygmaeonassa) Annandale, 1924
- Genus Reticarcularia Shuto, 1969 accepted as Nassarius (Plicarcularia) Thiele, 1929
- Genus Reticunassa Iredale, 1936 (36)
- Genus Scabronassa Peile, 1939 accepted as Nassarius Duméril, 1805
- Genus Schizopyga Conrad, 1856 accepted as Caesia H. Adams & A. Adams, 1853
- Genus Sphaeronassa Locard, 1886 accepted as Tritia Risso, 1826
- Genus Streptorhega Bronn, 1856 accepted as Demoulia Gray, 1838
- Genus Tarazeuxis Iredale, 1936 accepted as Nassarius Duméril, 1805
- Genus Tavaniotha Iredale, 1936 accepted as Nassarius Duméril, 1805
- Genus Telasco H. Adams & A. Adams, 1853 accepted as Tritia Risso, 1826
- Genus Tritia Risso, 1826 (132)
- Genus Tritonella A. Adams, 1852 accepted as Nassarius (Hima) [sic]
- Genus Uzita H. Adams & A. Adams, 1853 accepted as Tritia Risso, 1826
- Genus Varicinassa Habe, 1946 accepted as Nassarius Duméril, 1805
- Genus Venassa E. von Martens, 1881 accepted as Nassarius (Zeuxis) H. Adams & A. Adams, 1853
- Genus Yemeninassoides Bonfitto, 2024 (1)
- Genus Zeuxis H. Adams & A. Adams, 1853 accepted as Nassarius (Zeuxis) H. Adams & A. Adams, 1853
- Subfamily Nassinae Swainson, 1835 accepted as Nassariinae Iredale, 1916 (1835)
- Subfamily Photinae J. E. Gray, 1857 (119)
- Subfamily Tomliniinae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (70)
- Genus Sudonassarius Stilwell & Zinsmeister, 1992 † accepted as Chlanidota E. von Martens, 1878
- Family Neptuneidae W. Stimpson, 1865 accepted as Neptuneinae W. Stimpson, 1865
- Family Peristerniidae Tryon, 1880 accepted as Peristerniinae Tryon, 1880
- Family Pisaniidae J. E. Gray, 1857 (321)
- Family Prodotiidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (27)
- Family Prosiphonidae A. W. B. Powell, 1951 (165)
- Family Pusiostomatidae Iredale, 1940 accepted as Pisaniidae J. E. Gray, 1857
- Family Pyrenidae Suter, 1909 accepted as Atiliinae Cossmann, 1901
- Family Retimohniidae Kantor, Fedosov, Kosyan, Puillandre, Sorokin, Kano, R. Clark & Bouchet, 2021 (31)
- Family Tudiclidae Cossmann, 1901 (199)
- Family Volemidae Winckworth, 1945 accepted as Melongenidae Gill, 1871 (1854)
- Superfamily Cancellarioidea Forbes & Hanley, 1851 accepted as Volutoidea Rafinesque, 1815
- Superfamily Conoidea J. Fleming, 1822 (8 747)
- Superfamily Mitroidea Swainson, 1831 (633)
- Superfamily Muricacea accepted as Muricoidea Rafinesque, 1815
- Superfamily Muricoidea Rafinesque, 1815 (2 940)
- Superfamily Neogastropoda incertae sedis (1 151)
- Superfamily Olivoidea Latreille, 1825 (741)
- 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 (1 255)
- Superfamily Volutoidea Rafinesque, 1815 (3 029)
- Order Stenoglossa accepted as Neogastropoda
- Subclass Gastropoda incertae sedis (309)
- Subclass Heterobranchia (39 217)
- Subclass Neomphaliones accepted as Vetigastropoda
- Subclass Neritimorpha (1 915)
- Subclass Orthogastropoda represented as Gastropoda
- Subclass Patellogastropoda (514)
- Subclass Prosobranchia
- Subclass Psilogastropoda represented as Gastropoda
- Subclass Vetigastropoda (6 789)
- 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 (1 381)
- Class Polyplaxiphora accepted as Polyplacophora
- Class Rostroconchia † (64)
- Class Scaphopoda (753)
- Class Solenoconchia accepted as Scaphopoda
- Class Solenogastres (313)
- Subclass Chaetodermomorpha accepted as Caudofoveata
