Between brackets is the number of accepted species

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- Mollusca (133 203)
- 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 (102 955)
- Subclass Amphigastropoda † (423)
- Subclass Angiogastropoda represented as Gastropoda
- Subclass Apogastropoda
- Subclass Caenogastropoda (53 788)
- Subterclass Sorbeoconcha (147)
- Superorder Hypsogastropoda
- Order Architaenioglossa (4 921)
- Order Caenogastropoda incertae sedis (7 676)
- Order Littorinimorpha (17 226)
- Order Neogastropoda (23 818)
- Superfamily Buccinoidea Rafinesque, 1815 (5 266)
- 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)
- Family Concholepadidae Perrier, 1897 accepted as Rapaninae Gray, 1853
- Family Coralliophilidae Chenu, 1859 accepted as Coralliophilinae Chenu, 1859
- Family Magilidae Thiele, 1925 accepted as Coralliophilinae Chenu, 1859
- Family Muricidae Rafinesque, 1815 (2 937)
- Subfamily Aspellinae Keen, 1971 (548)
- Subfamily Colinae J. E. Gray, 1857 accepted as Colidae J. E. Gray, 1857
- Subfamily Coralliophilinae Chenu, 1859 (319)
- Subfamily Drupinae Wenz, 1938 accepted as Rapaninae Gray, 1853
- Subfamily Ergalataxinae Kuroda, T. Habe & Oyama, 1971 (188)
- Subfamily Haustrinae K. S. Tan, 2003 (18)
- Subfamily Muricidae incertae sedis (209)
- Subfamily Muricinae Rafinesque, 1815 (492)
- Genus Acupurpura Jousseaume, 1880 accepted as Murex Linnaeus, 1758
- Genus Aranea Perry, 1810 accepted as Murex Linnaeus, 1758
- Genus Bassia Jousseaume, 1880 accepted as Hexaplex (Hexaplex) G. Perry, 1810
- Genus Bassiella Wenz, 1941 accepted as Hexaplex (Hexaplex) G. Perry, 1810
- Genus Bathymurex Clench & Pérez Farfante, 1945 accepted as Paziella (Paziella) Jousseaume, 1880
- Genus Bolinus Pusch, 1837 (9)
- Genus Bouchetia Houart & Héros, 2008 (3)
- Genus Brontes Montfort, 1810 accepted as Haustellum Schumacher, 1817
- Genus Brontesia Reichenbach, 1828 accepted as Haustellum Schumacher, 1817
- Genus Calotrophon Hertlein & A. M. Strong, 1951 (12)
- Genus Chicomurex Arakawa, 1964 (18)
- Genus Chicoreus Montfort, 1810 (137)
- Genus Crassimurex Merle, 1990 † (6)
- Genus Dallimurex Rehder, 1946 accepted as Paziella (Paziella) Jousseaume, 1880
- Genus Euphyllon Jousseaume, 1880 accepted as Chicoreus (Chicoreus) Montfort, 1810
- Genus Exquisitor Merle, Garrigues & Pointier, 2022 (2)
- Genus Foveomurex Wenz, 1941 accepted as Chicoreus (Triplex) G. Perry, 1810
- Genus Frondosaria Schlüter, 1838 accepted as Chicoreus (Chicoreus) Montfort, 1810
- Genus Galfridus Iredale, 1924 accepted as Phyllocoma (Galfridus) Iredale, 1924
- Genus Gamurex Merle, 2011 † (1)
- Genus Haustellum Schumacher, 1817 (15)
- Genus Hertleinella S. S. Berry, 1958 accepted as Calotrophon Hertlein & A. M. Strong, 1951
- Genus Hexaplex G. Perry, 1810 (62)
- Subgenus Hexaplex (Hexaplex) G. Perry, 1810 represented as Hexaplex G. Perry, 1810
- Subgenus Hexaplex (Murexsul) Iredale, 1915 accepted as Murexsul Iredale, 1915
- Subgenus Hexaplex (Muricanthus) Swainson, 1840 accepted as Muricanthus Swainson, 1840
- Subgenus Hexaplex (Paziella) Jousseaume, 1880 accepted as Paziella Jousseaume, 1880
- Subgenus Hexaplex (Phyllonotus) Swainson, 1833 † accepted as Phyllonotus Swainson, 1833
- Subgenus Hexaplex (Trunculariopsis) Cossmann, 1921 represented as Hexaplex G. Perry, 1810 (2)
- Species Hexaplex aculeatus (Tate, 1888) † accepted as Paziella aculeata (Tate, 1888) †
- Species Hexaplex ambiguus (Reeve, 1845) accepted as Muricanthus ambiguus (Reeve, 1845)
- Species Hexaplex anatomica Perry, 1811 accepted as Homalocantha anatomica (Perry, 1811)
- Species Hexaplex angularis (Lamarck, 1822)
- Species Hexaplex ardjunoi (Beets, 1941) †
- Species Hexaplex arietinus (Millet, 1865) †
- Species Hexaplex ashiyaensis (Nagao, 1928) † accepted as Ocinebra ashiyaensis Nagao, 1928 †
- Species Hexaplex asperulus (Tate, 1888) †
- Species Hexaplex austriacus (Tournouër, 1875) †
- Species Hexaplex biconicus (Tate, 1888) †
- Species Hexaplex bifasciatus (A. Adams, 1853)
- Species Hexaplex bojadorensis (Locard, 1897) accepted as Favartia bojadorensis (Locard, 1897)
- Species Hexaplex bourgeoisi (Tournouër, 1875) †
- Species Hexaplex bozzadamii (Franchi, 1990)
- Species Hexaplex brassica (Lamarck, 1822)
- Species Hexaplex brevaculeatus R. Janssen, 1978 † accepted as Beyregrex brevaculeatus (R. Janssen, 1978) †
- Species Hexaplex campanii (De Stefani & Pantanelli, 1878) †
- Species Hexaplex camplytropis (Tate, 1888) †
- Species Hexaplex capgrandi (Cossmann & Peyrot, 1924) †
- Species Hexaplex cichoreum (Gmelin, 1791)
- Species Hexaplex conatus (McMichael, 1964)
- Species Hexaplex cowlitzensis (C. E. Weaver, 1912) †
- Species Hexaplex duplex (Röding, 1798)
- Species Hexaplex engonatus (Conrad, 1833) †
- Species Hexaplex eoa Garvie, 1996 †
- Species Hexaplex erythrostomus (Swainson, 1831) accepted as Phyllonotus erythrostomus (Swainson, 1831)
- Species Hexaplex eyrei (Tenison Woods, 1877) †
- Species Hexaplex foliacea G. Perry, 1811 accepted as Hexaplex cichoreum (Gmelin, 1791)
- Species Hexaplex frayssei (Cossmann & Peyrot, 1924) †
- Species Hexaplex fuchsi (Bayan, 1870) †
- Species Hexaplex fulvescens (G. B. Sowerby II, 1834)
- Species Hexaplex fusca Perry, 1811 accepted as Homalocantha scorpio (Linnaeus, 1758)
- Species Hexaplex gabori Merle, 2011 †
- Species Hexaplex ganensis Merle, 1990 † accepted as Gamurex ganensis (Merle, 2011) †
- Species Hexaplex gaudryi (P. Fischer & Tournouër, 1873) †
- Species Hexaplex gavardanensis (Cossmann & Peyrot, 1924) †
- Species Hexaplex graniformis (G. F. Harris, 1897) †
- Species Hexaplex grooti (H. M. Jenkins, 1864) †
- Species Hexaplex ighinae (Bellardi, 1873) †
- Species Hexaplex isthmicus E. H. Vokes, 1990 † accepted as Muricanthus isthmicus (E. H. Vokes, 1990) †
- Species Hexaplex jameshoubricki Petuch, 1994 † accepted as Muricanthus hertweckorum Petuch, 1988 †
- Species Hexaplex junghuhni (K. Martin, 1879) †
- Species Hexaplex kuesterianus (Tapparone Canefri, 1875)
- Species Hexaplex kusterianus [sic] accepted as Hexaplex kuesterianus (Tapparone Canefri, 1875)
- Species Hexaplex ledoni Ceulemans, van Dingenen, Merle & Landau, 2016 †
- Species Hexaplex longanensis (K. Martin, 1895) †
- Species Hexaplex marksi (G. D. Harris, 1894) †
- Species Hexaplex megacerus (G. B. Sowerby II, 1834)
- Species Hexaplex nigritus (R. A. Philippi, 1845) accepted as Muricanthus nigritus (R. A. Philippi, 1845)
- Species Hexaplex notoensis (Masuda, 1956) †
- Species Hexaplex pecchiolianus (d'Ancona, 1871)
- Species Hexaplex penghuensis (I. Hayasaka & T. Hayasaka, 1960) †
- Species Hexaplex peramangus (Ludbrook, 1941) † accepted as Siratus peramangus (Ludbrook, 1941) †
- Species Hexaplex praeduplex Landau, Houart & C. M. Silva, 2007 †
- Species Hexaplex princeps (Broderip, 1833)
- Species Hexaplex pseudoduplex T. Cossignani, 2021
- Species Hexaplex punctuata Perry, 1811 accepted as Hexaplex fulvescens (G. B. Sowerby II, 1834)
- Species Hexaplex puniceus W. R. B. Oliver, 1915 accepted as Murexsul puniceus (W. R. B. Oliver, 1915)
- Species Hexaplex pyknus (R. Janssen, 1978) †
- Species Hexaplex radix (Gmelin, 1791) accepted as Muricanthus radix (Gmelin, 1791)
- Species Hexaplex regius (Swainson, 1821) accepted as Phyllonotus regius (Swainson, 1821)
- Species Hexaplex rileyi D'Attilio & B. W. Myers, 1984
- Species Hexaplex rosarium (Röding, 1798)
- Species Hexaplex rudis (Borson, 1821) †
- Species Hexaplex ryalli Houart, 1993 accepted as Hexaplex saharicus ryalli Houart, 1993
- Species Hexaplex saharicus (Locard, 1897)
- Subspecies Hexaplex saharicus ryalli Houart, 1993
- Subspecies Hexaplex saharicus saharicus (Locard, 1897)
- Species Hexaplex sedgwickii (Michelotti, 1841) †
- Species Hexaplex sopenahensis (C. E. Weaver, 1912) †
- Species Hexaplex splendidus Houart, 2023
- Species Hexaplex stainforthi [sic] accepted as Hexaplex stainforthii (Reeve, 1843)
- Species Hexaplex stainforthii (Reeve, 1843)
- Species Hexaplex strausi (A. H. Verrill, 1950) accepted as Muricanthus strausi (A. H. Verrill, 1950)
- Species Hexaplex subasperrimus (A. d'Orbigny, 1852) †
- Species Hexaplex syrticus (Mayer, 1871) †
- Species Hexaplex tapparonii (Bellardi, 1873) †
- Species Hexaplex tenuis Perry, 1811 accepted as Homalocantha scorpio (Linnaeus, 1758)
- Species Hexaplex tridentatus (Tate, 1888) †
- Species Hexaplex trochispira (Tate, 1888) †
- Species Hexaplex truncatulus (Foresti, 1868) †
- Species Hexaplex trunculus (Linnaeus, 1758)
- Species Hexaplex turbinatus (Lamarck, 1822) accepted as Hexaplex duplex (Röding, 1798)
- Species Hexaplex turonensis (Dujardin, 1837) †
- Species Hexaplex varius (G. B. Sowerby II, 1834)
- Species Hexaplex whitneyi (Gabb, 1864) †
- Genus Murex Linnaeus, 1758 (46)
- Genus Muricanthus Swainson, 1840 (8)
- Genus Muricites Schlotheim, 1820 † accepted as Murex Linnaeus, 1758
- Genus Naquetia Jousseaume, 1880 (9)
- Genus Paleochicoreus Merle, 2024 † (5)
- Genus Panamurex Woodring, 1959 accepted as Calotrophon (Panamurex) Woodring, 1959
- Genus Phyllocoma Tapparone Canefri, 1881 (6)
- Genus Phyllonotus Swainson, 1833 (16)
- Genus Promurex Ponder & E. H. Vokes, 1988 (1)
- Genus Prototyphis Ponder, 1972 (8)
- Genus Pseudoperissolax B. L. Clark, 1918 † (3)
- Genus Pterochelus Jousseaume, 1880 (14)
- Genus Purpura Jousseaume, 1880 accepted as Bolinus Pusch, 1837
- Genus Purpura Röding, 1798 accepted as Hexaplex (Trunculariopsis) Cossmann, 1921
- Genus Purpurellus Jousseaume, 1880 (6)
- Genus Rhinocantha H. Adams & A. Adams, 1853 accepted as Bolinus Pusch, 1837
- Genus Siratus Jousseaume, 1880 (50)
- Genus Textiliomurex Merle, 2011 † (5)
- Genus Torvamurex Macpherson & Gabriel, 1962 accepted as Chicoreus (Triplex) G. Perry, 1810
- Genus Torvamurex Iredale, 1936 accepted as Torvamurex Macpherson & Gabriel, 1962
- Genus Triplex G. Perry, 1810 accepted as Chicoreus (Triplex) G. Perry, 1810
- Genus Truncularia Monterosato, 1917 accepted as Hexaplex (Trunculariopsis) Cossmann, 1921
- Genus Trunculariopsis Cossmann, 1921 accepted as Hexaplex (Trunculariopsis) Cossmann, 1921
- Genus Tubicauda Jousseaume, 1880 accepted as Murex Linnaeus, 1758
- Genus Vokesimurex Petuch, 1994 (50)
- Subfamily Muricopsinae Radwin & D'Attilio, 1971 accepted as Aspellinae Keen, 1971
- Subfamily Nucellopsinae Merle, 2024 † (5)
- Subfamily Ocenebrinae Cossmann, 1903 (561)
- Subfamily Pagodulinae Barco, Schiaparelli, Houart & Oliverio, 2012 (266)
- Subfamily Purpurellinae Bellardi, 1882 † accepted as Rapaninae Gray, 1853
- Subfamily Rapaninae Gray, 1853 (178)
- Subfamily Taurasinae Sacco, 1904 † accepted as Rapaninae Gray, 1853
- Subfamily Tripterotyphinae D'Attilio & C. M. Hertz, 1988 accepted as Muricopsinae Radwin & D'Attilio, 1971
- Subfamily Tritonaliinae Korobkov, 1955 accepted as Ocenebrinae Cossmann, 1903
- Subfamily Trophoninae Cossmann, 1903 accepted as Ocenebrinae Cossmann, 1903
- Subfamily Typhinae Cossmann, 1903 (153)
- Family Muricoidea incertae sedis (3)
- Family Nucellidae A. E. Salisbury, 1940 accepted as Ocenebrinae Cossmann, 1903
- Family Purpuridae Children, 1823 accepted as Rapaninae Gray, 1853
- Family Rapidae Kuroda, 1941 accepted as Coralliophilinae Chenu, 1859
- Family Thaididae Jousseaume, 1888 accepted as Rapaninae Gray, 1853
- Family Typhidae Cossmann, 1903 accepted as Typhinae Cossmann, 1903
- Subfamily Eburninae Swainson, 1840 accepted as Babyloniidae Kuroda, Habe & Oyama, 1971
- Subfamily Latrunculinae Cossmann, 1901 accepted as Babyloniidae Kuroda, Habe & Oyama, 1971
- 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