Abudefduf Forsskål, 1775 (basis of record)
Abudefduf luridus (Cuvier, 1830) accepted as Similiparma lurida (Cuvier, 1830) (basis of record)
Acanthochaenus Gill, 1884 (basis of record)
Acanthochaenus luetkenii Gill, 1884 (basis of record)
Acanthocybium Gill, 1862 (basis of record)
Acanthocybium solandri (Cuvier, 1832) (basis of record)
Acantholabrus Valenciennes, 1839 (basis of record)
Acantholabrus palloni (Risso, 1810) (basis of record)
Acanthostracion Bleeker, 1865 (basis of record)
Acanthostracion notacanthus (Bleeker, 1863) (basis of record)
Acanthuridae Bonaparte, 1835 (basis of record)
Acanthurus Forsskål, 1775 (basis of record)
Acanthurus monroviae Steindachner, 1876 (basis of record)
Acipenser Linnaeus, 1758 (basis of record)
Acipenser gueldenstaedtii Brandt & Ratzeburg, 1833 (basis of record)
Acipenser naccarii Bonaparte, 1836 (basis of record)
Acipenser nudiventris Lovetsky, 1828 (basis of record)
Acipenser stellatus Pallas, 1771 (basis of record)
Acipenser sturio Linnaeus, 1758 (basis of record)
Acipenseridae Bonaparte, 1831 (basis of record)
Agonidae Swainson, 1839 (basis of record)
Agonus Bloch & Schneider, 1801 (basis of record)
Agonus cataphractus (Linnaeus, 1758) (basis of record)
Ahliesaurus Bertelsen, Krefft & Marshall, 1976 (basis of record)
Ahliesaurus berryi Bertelsen, Krefft & Marshall, 1976 (basis of record)
Aidablennius Whitley, 1947 (basis of record)
Aidablennius sphynx (Valenciennes, 1836) (basis of record)
Aldrovandia Goode & Bean, 1896 (basis of record)
Aldrovandia affinis (Günther, 1877) (basis of record)
Aldrovandia phalacra (Vaillant, 1888) (basis of record)
Alectis Rafinesque, 1815 (basis of record)
Alectis alexandrinus (Geoffroy Saint-Hilaire, 1817) accepted as Alectis alexandrina (Geoffroy Saint-Hilaire, 1817) (basis of record)
Alepes Swainson, 1839 (basis of record)
Alepes djedaba (Forsskål, 1775) (basis of record)
Alepisauridae Swainson, 1839 (basis of record)
Alepisaurus Lowe, 1833 (basis of record)
Alepisaurus brevirostris Gibbs, 1960 (basis of record)
Alepisaurus ferox Lowe, 1833 (basis of record)
Alepocephalidae Bonaparte, 1846 (basis of record)
Alepocephalus Risso, 1820 (basis of record)
Alepocephalus agassizii Goode & Bean, 1883 (basis of record)
Alepocephalus bairdii Goode & Bean, 1879 (basis of record)
Alepocephalus productus Gill, 1883 (basis of record)
Alepocephalus rostratus Risso, 1820 (basis of record)
Allocyttus McCulloch, 1914 (basis of record)
Allocyttus verrucosus (Gilchrist, 1906) (basis of record)
Alopias Rafinesque, 1810 (basis of record)
Alopias superciliosus Lowe, 1841 (basis of record)
Alopias vulpinus (Bonnaterre, 1788) (basis of record)
Alopiidae Bonaparte, 1835 (basis of record)
Alosa Linck, 1790 (basis of record)
Alosa alosa (Linnaeus, 1758) (basis of record)
Alosa caspia (Eichwald, 1838) (basis of record)
Alosa fallax (Lacepède, 1803) (basis of record)
Alosa pontica (Eichwald, 1838) accepted as Alosa immaculata Bennett, 1835 (basis of record)
Aluterus Cloquet, 1816 (basis of record)
Aluterus monoceros (Linnaeus, 1758) (basis of record)
Amblyraja Malm, 1877 (basis of record)
Amblyraja hyperborea (Collett, 1879) (basis of record)
Amblyraja jenseni (Bigelow & Schroeder, 1950) (basis of record)
Amblyraja radiata (Donovan, 1808) (basis of record)
Ammodytes Linnaeus, 1758 (basis of record)
Ammodytes marinus Raitt, 1934 (basis of record)
Ammodytes tobianus Linnaeus, 1758 (basis of record)
Ammodytidae Bonaparte, 1835 (basis of record)
Anarchias Jordan & Starks, 1906 (basis of record)
Anarchias euryurus (Lea, 1913) (basis of record)
Anarhichadidae Bonaparte, 1835 (basis of record)
Anarhichas Linnaeus, 1758 (basis of record)
Anarhichas denticulatus Krøyer, 1845 (basis of record)
Anarhichas lupus Linnaeus, 1758 (basis of record)
Anarhichas minor Olafsen, 1772 (basis of record)
Anguilla Schrank, 1798 (basis of record)
Anguilla anguilla (Linnaeus, 1758) (basis of record)
Anguillidae Rafinesque, 1810 (basis of record)
Anisarchus Gill, 1864 (basis of record)
Anisarchus medius (Reinhardt, 1837) (basis of record)
Anoplogaster Günther, 1859 (basis of record)
Anoplogaster cornuta (Valenciennes, 1833) (basis of record)
Anotopteridae Zugmayer, 1911 (basis of record)
Anotopterus Zugmayer, 1911 (basis of record)
Anotopterus pharao Zugmayer, 1911 (basis of record)
Antennariidae Jarocki, 1822 (basis of record)
Antennarius Daudin, 1816 (basis of record)
Antennarius nummifer (Cuvier, 1817) accepted as Abantennarius nummifer (Cuvier, 1817) (basis of record)
Anthias Bloch, 1792 (basis of record)
Anthias anthias (Linnaeus, 1758) (basis of record)
Antigonia Lowe, 1843 (basis of record)
Antigonia capros Lowe, 1843 (basis of record)
Antimora Günther, 1878 (basis of record)
Antimora rostrata (Günther, 1878) (basis of record)
Aphanius Nardo, 1827 (basis of record)
Aphanius dispar (Rüppell, 1829) accepted as Aphaniops dispar (Rüppell, 1829) (basis of record)
Aphanius fasciatus (Valenciennes, 1821) (basis of record)
Aphanius iberus (Valenciennes, 1846) accepted as Apricaphanius iberus (Valenciennes, 1846) (basis of record)
Aphanopus Lowe, 1839 (basis of record)
Aphanopus carbo Lowe, 1839 (basis of record)
Aphia Risso, 1827 (basis of record)
Aphia minuta (Risso, 1810) (basis of record)
Aphyonidae Jordan & Evermann, 1898 (basis of record)