Abraliopsis lineata (E. S. Goodrich, 1896) (additional source)
Acalyptophis Boulenger, 1896 (basis of record)
Acalyptophis peronii (Duméril, 1853) accepted as Hydrophis peronii (Duméril, 1853) (basis of record)
Acanthopathes Opresko, 2004 (basis of record)
Achelia echinata Hodge, 1864 (additional source)
Achelia superba (Loman, 1911) (additional source)
Acrochordidae (basis of record)
Acrochordus Hornstedt, 1787 (basis of record)
Acrochordus granulatus (Schneider, 1799) (basis of record)
Aidanosagitta Tokioka & Pathansali, 1963 (basis of record)
Aidanosagitta bedfordii (Doncaster, 1902) (basis of record)
Aidanosagitta crassa (Tokioka, 1938) (basis of record)
Aidanosagitta delicata (Tokioka, 1939) (basis of record)
Aidanosagitta johorensis (Pathansali & Tokioka, 1963) (basis of record)
Aidanosagitta neglecta (Aida, 1897) (basis of record)
Aidanosagitta oceania (Grey, 1930) (basis of record)
Aidanosagitta regularis (Aida, 1897) (basis of record)
Aidanosagitta septata (Doncaster, 1903) (basis of record)
Alcyonium molle Thomson & Dean, 1931 accepted as Klyxum molle (Thomson & Dean, 1931) (basis of record)
Alcyonium rotundum Thomson & Dean, 1931 accepted as Klyxum rotundum (Thomson & Dean, 1931) (basis of record)
Alcyonium simplex Thomson & Dean, 1931 accepted as Klyxum simplex (Thomson & Dean, 1931) (basis of record)
Althoffia tumida Lohmann, 1892 (additional source)
Ammothea hilgendorfi (Böhm, 1879) (additional source)
Amphioctopus P. Fischer, 1882 (basis of record)
Amphitretus Hoyle, 1885 (basis of record)
Amphitretus pelagicus Hoyle, 1885 (basis of record)
Anelassorhynchus inansensis (Ikeda, 1904) (basis of record)
Anelassorhynchus sabinus (Lanchester, 1905) (basis of record)
Anoplodactylus glandulifer Stock, 1954 (additional source)
Antennellopsis Jäderholm, 1896 (basis of record)
Anthelia formosana Utinomi, 1950 (basis of record)
Anthemiphyllia Pourtalès, 1878 (basis of record)
Antillesoma antillarum (Grube, 1858) (additional source)
Aphanipathes somervillei Cooper, 1909 accepted as Acanthopathes somervillei (Cooper, 1909) (source of synonymy)
Aphanipathidae Opresko, 2004 (basis of record)
Apionsoma (Apionsoma) misakianum (Ikeda, 1904) (basis of record)
Apionsoma (Apionsoma) trichocephalus Sluiter, 1902 (basis of record)
Apionsoma (Edmondsius) pectinatum (Keferstein, 1867) (basis of record)
Aplidiopsis amoyense Tokioka, 1967 (additional source)
Aplidium constellatum (Verrill, 1871) (additional source)
Aplidium depressum Sluiter, 1909 (additional source)
Aplidium multipapillatum Millar, 1975 (additional source)
Aplidium multiplicatum Sluiter, 1909 (additional source)
Arhynchite Satô, 1937 (basis of record)
Arhynchite rugosus Chen & Yeh, 1958 (basis of record)
Ascidia archaia Sluiter, 1890 (additional source)
Ascidia gemmata Sluiter, 1895 (additional source)
Ascidia pacifica Tokioka, 1967 (additional source)
Ascidia sydneiensis Stimpson, 1855 (additional source)
Ascorhynchus ramipes (Böhm, 1879) (additional source)
Aspidosiphon (Aspidosiphon) elegans (Chamisso & Eysenhardt, 1821) (additional source)
Aspidosiphon (Aspidosiphon) muelleri Diesing, 1851 represented as Aspidosiphon (Aspidosiphon) muelleri muelleri Diesing, 1851 (additional source)
Aspidosiphon (Paraspidosiphon) laevis Quatrefages, 1866 (additional source)
Aspidosiphon (Paraspidosiphon) steenstrupii Diesing, 1859 (additional source)
Asterospicularia Utinomi, 1951 (basis of record)
Astrogorgia Verrill, 1868 (basis of record)
Astrotia Fischer, 1856 (basis of record)
Astrotia stokesii (Gray, 1846) accepted as Hydrophis stokesii (Gray, 1846) (basis of record)
Asymmetron lucayanum Andrews, 1893 (additional source)
Australomedusidae Russell, 1971 (basis of record)
Austrorossia S. S. Berry, 1918 (basis of record)
Austrorossia bipapillata (Sasaki, 1920) (additional source)
Balaenoptera omurai Wada, Oishi & Yamada, 2003 (basis of record)
Balanoglossus carnosus Müller in Spengel, 1893 (basis of record)
Balanoglossus misakiensis Kuwano, 1902 (basis of record)
Barabattoia amicorum (Milne Edwards & Haime, 1849) accepted as Dipsastraea amicorum (Milne Edwards & Haime, 1849) (additional source)
Barabattoia mirabilis Yabe & Sugiyama, 1941 accepted as Dipsastraea mirabilis (Yabe & Sugiyama, 1941) (basis of record)
Bellonella Gray, 1862 (basis of record)
Beroe cucumis Fabricius, 1780 (additional source)
Beroe forskalii Milne Edwards, 1841 (additional source)
Beroe ovatus Bruguière, 1789 accepted as Beroe ovata Bruguière, 1789 (additional source)
Bibrachium Stechow, 1919 (basis of record)
Bolinopsis vitrea (L. Agassiz, 1860) (additional source)
Botryllus primigenus Oka, 1928 (additional source)
Botryllus schlosseri (Pallas, 1766) (additional source)
Botryllus tuberatus Ritter & Forsyth, 1917 (additional source)
Branchiostoma belcheri (Gray, 1847) (additional source)
Brooksia rostrata (Traustedt, 1893) (additional source)
Bythocellata Nair, 1951 (basis of record)
Caecosagitta macrocephala (Fowler, 1904) (additional source)
Callipallene dubiosa Hedgpeth, 1949 (additional source)
Calonectris leucomelas (Temminck, 1835) (basis of record)
Calyptospadix Clarke, 1882 (basis of record)
Campaniclava clionis Vanhöffen, 1910 accepted as Pandea clionis (Vanhöffen, 1910) (source of synonymy)
Carcinoscorpius rotundicauda (Latreille, 1802) (additional source)
Cephea conifera Haeckel, 1880 (source of synonymy)
Cerorhinca Bonaparte, 1828 (basis of record)
Cerorhinca monocerata (Pallas, 1811) (basis of record)
Cestum veneris Lesueur, 1813 (additional source)
Chiroteuthis imperator Chun, 1908 (additional source)
Chromonephthea van Ofwegen, 2005 (basis of record)
Ciona intestinalis (Linnaeus, 1767) (additional source)
Cirrholoveniidae Bouillon, 1984 (basis of record)
Cladosarsia Bouillon, 1978 (basis of record)
Cloeosiphon aspergillus (Quatrefages, 1865) (basis of record)
Clytia minuta (Nutting, 1901) accepted as Clytia hemisphaerica (Linnaeus, 1767) (source of synonymy)
Clytia obliqua (Clarke, 1907) accepted as Clytia linearis (Thorneley, 1900) (source of synonymy)
Cnemidocarpa areolata (Heller, 1878) (additional source)
Cnidocodon Bouillon, 1978 (basis of record)
Colubridae Oppel, 1811 (basis of record)

English 10-tentacle burrowing anemone for Halcampa decemtentaculata Hand, 1955
English 12-tentacle burrowing anemone for Halcampa duodecimcirrata (Sars, 1851)
English 12-tentacle parasitic anemone for Peachia parasitica (Agassiz, 1861)
English Abbott's booby for Papasula abbotti Ridgway, 1893
English aberrant toothshell for Gadila aberrans (Whiteaves, 1887)
English adhesive sea anemone for Cryptodendrum adhaesivum (Klunzinger, 1877)
English African pillow coral for Siderastrea savignyana Milne Edwards & Haime, 1849
English African squid [from synonym] for Loligo africana (Adam, 1950)
English Agassiz toothshell for Gadila agassizii (Dall, 1881)
English Alaskan anemone for Charisea saxicola Torrey, 1902
English Aleutian tern [from synonym] for Sterna aleutica Baird, 1869
English Amazon tern [from synonym] for Sterna superciliaris Vieillot, 1819
English American tuskshell for Paradentalium americanum (Chenu, 1843)
English anagolous bobtail for Sepiola affinis Naef, 1912
English ancient murrelet for Synthliboramphus antiquus (Gmelin, 1789)
English Andean gull for Larus serranus Tschudi, 1844
English Andrew's frigatebird for Fregata andrewsi Mathews, 1914
English anemone coral for Goniopora albiconus Veron, 2000
English anemone coral for Goniopora burgosi Nemenzo, 1955
English anemone coral for Goniopora cellulosa Veron, 1990
English anemone coral for Goniopora ciliatus Veron, 2000
English anemone coral for Goniopora columna Dana, 1846
English anemone coral for Goniopora djiboutiensis Vaughan, 1907
English anemone coral for Goniopora eclipsensis Veron & Pichon, 1982
English anemone coral for Goniopora fruticosa Saville-Kent, 1891
English anemone coral for Goniopora lobata Milne Edwards, 1860
English anemone coral [from synonym] for Goniopora minor Crossland, 1952
English anemone coral for Goniopora norfolkensis Veron & Pichon, 1982
English anemone coral for Goniopora palmensis Veron & Pichon, 1982
English anemone coral for Goniopora pandoraensis Veron & Pichon, 1982
English anemone coral for Goniopora pearsoni Veron, 2000
English anemone coral for Goniopora pendulus Veron, 1985
English anemone coral for Goniopora planulata (Ehrenberg, 1834)
English anemone coral for Goniopora polyformis (Zou, 1980)
English anemone coral for Goniopora savignyi Dana, 1846
English anemone coral for Goniopora somaliensis Vaughan, 1907
English anemone coral for Goniopora stokesi Milne Edwards & Haime, 1851
English anemone coral [from synonym] for Goniopora stutchburyi Wells, 1955
English anemone coral for Goniopora sultani Veron, DeVantier & Turak, 2000
English anemone coral for Goniopora tenella (Quelch, 1886)
English anemone coral for Goniopora tenuidens (Quelch, 1886)
English angel squid for Ancistroteuthis lichtensteinii (A. Férussac [in A. Férussac & d'Orbigny], 1835)
English Angola flying squid for Todarodes angolensis Adam, 1962
English angular sea whip for Pterogorgia anceps (Pallas, 1766)
English annulate sticky hydroid for Eudendrium vaginatum Allman, 1863
English annulate tuskshell for Episiphon sowerbyi (Guilding, 1834)
English Antarctic flying squid for Todarodes filippovae Adam, 1975
English Antarctic fulmar for Fulmarus glacialoides (Smith, 1840)
English Antarctic neosquid for Alluroteuthis antarcticus Odhner, 1923
English Antarctic skua [from synonym] for Catharacta antarctica (Lesson, 1831)
English Antillean tuskshell [from synonym] for Antalis antillaris (A. d'Orbigny, 1847)
English Antilles bobtail squid for Austrorossia antillensis (G. L. Voss, 1955)
English Arafura file snake for Acrochordus arafurae McDowell, 1979
English arch-beaked whale for Mesoplodon carlhubbsi Moore, 1963
English Arctic brooding anemone for Epiactis arctica (Verrill, 1868)
English Argentine shortfin squid for Illex argentinus (Castellanos, 1960)
English armed cranch squid for Galiteuthis armata Joubin, 1898
English Armenian gull for Larus armenicus Buturlin, 1934
English Arnoux's beaked whale for Berardius arnuxii Duvernoy, 1851
English artichoke coral for Scolymia cubensis (Milne Edwards & Haime, 1848)
English Ascension frigatebird for Fregata aquila (Linnaeus, 1758)
English ashy storm-petrel for Oceanodroma homochroa (Coues, 1864)
English Atlantic armhook squid for Gonatus steenstrupi Kristensen, 1981
English Atlantic banded octopus for Octopus zonatus G. L. Voss, 1968
English Atlantic bird squid for Ornithoteuthis antillarum Adam, 1957
English Atlantic bobtail for Sepiola atlantica A. d'Orbigny, 1842
English Atlantic cranch squid for Teuthowenia megalops (Prosch, 1849)
English Atlantic gonate squid for Gonatus steenstrupi Kristensen, 1981
English Atlantic hump-backed dolphin for Sousa teuszii (Kükenthal, 1892)
English Atlantic mushroom coral for Scolymia lacera (Pallas, 1766)
English Atlantic warty octopus for Scaeurgus unicirrhus (Delle Chiaje, 1841)
English Auckland chag [from synonym] for Phalacrocorax colensoi Buller, 1888
English Audouin's gull for Larus audouinii Payraudeau, 1826
English Australasian gannet for Morus serrator (Gray, 1843)
English Australian fur seal for Arctocephalus pusillus (Schreber, 1775)
English Australian pelican for Pelecanus conspicillatus Temminck, 1824
English Australian snubfin dolphin for Orcaella heinsohni Beasley, Robertson & Arnold, 2005
English banana coral for Trachyphyllia geoffroyi (Audouin, 1826)
English banded tuskshell for Antalis circumcincta (R. B. Watson, 1879)
English banded water snake for Nerodia fasciata (Linnaeus, 1766)
English band-rumped storm-petrel for Oceanodroma castro (Harcourt, 1851)
English bank cormorant for Phalacrocorax neglectus (Wahlberg, 1855)
English Bartsch's squid [from synonym] for Uroteuthis bartschi Rehder, 1945
English beaded sea anemone for Heteractis aurora (Quoy & Gaimard, 1833)
English bean coral for Euphyllia fimbriata (Spengler, 1799)
English Beck's petrel for Pseudobulweria becki (Murphy, 1928)
English Beka squid [from synonym] for Loligo beka Sasaki, 1929
English Bennetts watersnake [from synonym] for Enhydris bennetti (Gray, 1842)
English Bermuda petrel for Pterodroma cahow (Nichols & Mowbray, 1916)
English berry armhook squid for Gonatus berryi Naef, 1923
English berry tuskshell for Antalis berryi (A. G. Smith & M. Gordon, 1948)
English bigeye inshore squid [from synonym] for Loligo ocula Cohen, 1976
English big-fin bobtail squid for Rossia megaptera A. E. Verrill, 1881
English black fan-shaped hydroid for Solanderia gracilis Duchassaing & Michelin, 1846
English black jelly for Chrysaora achlyos Martin, Gershwin, Burnett, Cargo & Bloom, 1997
English black noddy for Anous minutus Boie, 1844
English black right whale for Balaena mysticetus Linnaeus, 1758
English Black Sea fan for Iciligorgia schrammi Duchassaing, 1870
English Black Sea rod for Plexaura homomalla (Esper, 1794)
English Black Sea turtle [from synonym] for Chelonia agassizii Bocourt, 1868