Acanthuridae Bonaparte, 1835 (taxonomy source)
Acanthuroidei accepted as Acanthuriformes (taxonomy source)
Acheilognathinae Bleeker, 1863 (taxonomy source)
Acipenseridae Bonaparte, 1831 (taxonomy source)
Acipenseriformes (taxonomy source)
Actinopteri (basis of record)
Agonidae Swainson, 1839 (taxonomy source)
Agoninae Swainson, 1839 (taxonomy source)
Alburninae Girard, 1858 (taxonomy source)
Alepisauridae Swainson, 1839 (taxonomy source)
Alepocephalidae Bonaparte, 1846 (taxonomy source)
Alopiidae Bonaparte, 1835 (taxonomy source)
Ammodytidae Bonaparte, 1835 (taxonomy source)
Anarhichadidae Bonaparte, 1835 (taxonomy source)
Anguillidae Rafinesque, 1810 (taxonomy source)
Anguilliformes (taxonomy source)
Anoplagoninae Gill, 1861 (taxonomy source)
Anoplogastridae Gill, 1893 (taxonomy source)
Anotopteridae Zugmayer, 1911 (taxonomy source)
Antennariidae Jarocki, 1822 (taxonomy source)
Anthiinae Poey, 1861 accepted as Anthiadinae Poey, 1861 (taxonomy source)
Aphanopodinae Gill, 1863 (taxonomy source)
Aphyonidae Jordan & Evermann, 1898 (taxonomy source)
Apogonidae Günther, 1859 (taxonomy source)
Apogoninae Günther, 1859 (taxonomy source)
Argentinidae Bonaparte, 1846 (taxonomy source)
Arhynchobatidae Fowler, 1934 (taxonomy source)
Ariidae Bleeker, 1858 (taxonomy source)
Ariinae Bleeker, 1858 (taxonomy source)
Astronesthinae Günther, 1864 (taxonomy source)
Ateleopodidae Bonaparte, 1850 (taxonomy source)
Ateleopodiformes (taxonomy source)
Atherinidae Risso, 1827 (taxonomy source)
Atheriniformes (taxonomy source)
Atherininae Risso, 1827 (taxonomy source)
Atherinomorinae Dyer & Chernoff, 1996 (taxonomy source)
Aulopidae Bonaparte, 1831 (taxonomy source)
Aulopiformes (taxonomy source)
Balistidae Rafinesque, 1810 (taxonomy source)
Barbinae Bleeker, 1859 (taxonomy source)
Bathygadinae Jordan & Evermann, 1898 (taxonomy source)
Bathylagidae Gill, 1884 (taxonomy source)
Bathymyrinae Böhlke, 1949 (taxonomy source)
Bathysauridae Fowler, 1944 (taxonomy source)
Batrachoididae Jordan, 1896 (taxonomy source)
Batrachoidiformes (taxonomy source)
Belonidae Bonaparte, 1835 (taxonomy source)
Beloniformes (taxonomy source)
Berycidae Lowe, 1839 (taxonomy source)
Beryciformes (taxonomy source)
Blenniidae Rafinesque, 1810 (taxonomy source)
Blenniinae Rafinesque, 1810 (taxonomy source)
Blennioidei accepted as Blenniiformes (taxonomy source)
Bothidae Smitt, 1892 (taxonomy source)
Bramidae Bonaparte, 1831 (taxonomy source)
Bregmacerotidae Gill, 1872 (taxonomy source)
Brosmophycinae Gill, 1862 (taxonomy source)
Brotulotaeniinae Cohen & Nielsen, 1978 (taxonomy source)
Bythitidae Gill, 1861 (taxonomy source)
Bythitinae Gill, 1861 (taxonomy source)
Callanthiidae Ogilby, 1899 (taxonomy source)
Callichthyidae Bonaparte, 1835 (taxonomy source)
Callionymidae Bonaparte, 1831 (taxonomy source)
Callionymoidei accepted as Callionymiformes (taxonomy source)
Caproidae Bonaparte, 1835 (taxonomy source)
Caproidei accepted as Caproidae Bonaparte, 1835 (taxonomy source)
Carangidae Rafinesque, 1815 (taxonomy source)
Carapidae Poey, 1867 (taxonomy source)
Carapinae Poey, 1867 (taxonomy source)
Carcharhinidae Jordan & Evermann, 1896 (taxonomy source)
Carcharhiniformes (taxonomy source)
Caristiidae Gill & Smith, 1905 (taxonomy source)
Caulophrynidae Goode & Bean, 1896 (taxonomy source)
Centracanthidae Gill, 1893 accepted as Sparidae Rafinesque, 1818 (taxonomy source)
Centrarchidae Bleeker, 1859 (taxonomy source)
Centriscidae Bonaparte, 1831 (taxonomy source)
Centrolophidae Bonaparte, 1846 (taxonomy source)
Centrophoridae Bleeker, 1859 (taxonomy source)
Centrophrynidae Bertelsen, 1951 (taxonomy source)
Cepolidae Rafinesque, 1815 (taxonomy source)
Ceratiidae Gill, 1861 (taxonomy source)
Cetomimidae Goode & Bean, 1895 (taxonomy source)
Cetomimiformes (taxonomy source)
Cetorhinidae Gill, 1861 (taxonomy source)
Chaetodontidae Rafinesque, 1815 (taxonomy source)
Chauliodontinae Bonaparte, 1845 (taxonomy source)
Chaunacidae Gill, 1863 (taxonomy source)
Chiasmodontidae Jordan & Gilbert, 1883 (taxonomy source)
Chiloglanidinae Vigliotta, 2008 (taxonomy source)
Chimaeridae Rafinesque, 1815 (taxonomy source)
Chimaeriformes (taxonomy source)
Chirolophinae Jordan & Evermann, 1898 (taxonomy source)
Chlamydoselachidae Garman, 1884 (taxonomy source)
Chlopsidae Rafinesque, 1815 (taxonomy source)
Chlorophthalmidae Garman, 1899 (taxonomy source)
Cichlidae Bonaparte, 1835 (taxonomy source)
Cichlinae Bonaparte, 1835 (taxonomy source)
Citharidae de Buen, 1935 (taxonomy source)
Clinidae Swainson, 1839 (taxonomy source)
Clupeidae Cuvier, 1816 (taxonomy source)