Acanthodasys aculeatus Remane, 1927 (additional source)
Achelia alaskensis (Cole, 1904) (additional source)
Achelia borealis (Schimkewitsch, 1895) (additional source)
Achelia echinata Hodge, 1864 (additional source)
Achelia laevis Hodge, 1864 (additional source)
Achelia lavrentii (Losina-Losinsky, L.K., 1933) accepted as Achelia spinosa (Stimpson, 1853) (basis of record)
Achelia litke (Losina-Losinsky, L.K., 1933) accepted as Achelia spinosa (Stimpson, 1853) (basis of record)
Achelia salebrosa Losina-Losinsky, 1961 (additional source)
Achelia spinosa (Stimpson, 1853) (additional source)
Achelia uschakovi Losina-Losinsky L.K., 1933 accepted as Achelia spinosa (Stimpson, 1853) (basis of record)
Actinoposthia beklemishevi Mamkaev, 1965 accepted as Actinoposthia beklemischevi Mamkaev, 1965 (additional source)
Actinoposthiidae Hooge, 2001 (basis of record)
Aechmalotus Beklemischev, 1915 (basis of record)
Aechmalotus pyrula Beklemischev, 1915 (basis of record)
Aethia Merrem, 1788 (basis of record)
Aethia cristatella (Pallas, 1769) (basis of record)
Aethia pusilla (Pallas, 1811) (basis of record)
Aethia pygmaea (Gmelin, 1789) (basis of record)
Alcyonidium auct. accepted as Alcyonium Linnaeus, 1758 (basis of record)
Anaperus biaculeatus Boguta, 1970 accepted as Thalassoanaperus biaculeatus (Boguta, 1970) (additional source)
Anaperus tvaerminnensis (Luther, 1912) accepted as Thalassoanaperus tvaerminnensis (Luther, 1912) (additional source)
Aphanostoma pallidum Beklemischev, 1915 accepted as Eumecynostomum pallidum (Beklemischev, 1915) (basis of record)
Aphanostoma rhomboides Jensen, 1878 (basis of record)
Aphanostoma sanguineum Beklemischev, 1915 accepted as Pseudactinoposthia sanguineum (Beklemischev, 1915) (source of synonymy)
Aphanostoma virescens Ørsted, 1845 (additional source)
Aplidium glabrum (Verrill, 1871) (additional source)
Aplidium mutabile (Sars, 1851) (additional source)
Aplidium pallidum (Verrill, 1871) (additional source)
Aplidium spitzbergense Hartmeyer, 1903 (additional source)
Archaphanostoma agile (Jensen, 1878) accepted as Baltalimania agile (Jensen, 1878) (additional source)
Arthrotardigrada (basis of record)
Ascidia callosa Stimpson, 1852 (additional source)
Ascidia dijmphniana (Traustedt, 1886) (additional source)
Ascidia obliqua Alder, 1863 (additional source)
Ascidia prunum Müller, 1776 (additional source)
Ascidia unalaskensis (Ritter, 1913) (additional source)
Ascorhynchus abyssi Sars, 1877 (additional source)
Aulacoctena Mortensen, 1913 (basis of record)
Aulacoctenidae Lindsay & Miyake, 2007 (basis of record)
Bathyctena Mortensen, 1912 (basis of record)
Bathyctenidae Mortensen, 1913 (basis of record)
Batillipedidae Ramazzotti, 1962 (additional source)
Beroe abyssicola Mortensen, 1927 (basis of record)
Beroe cucumis Fabricius, 1780 (additional source)
Bolinopsis infundibulum (O.F. Müller, 1776) (additional source)
Boltenia echinata (Linnaeus, 1767) (additional source)
Boltenia ovifera (Linnaeus, 1767) (additional source)
Borealibius Pilato, Guidetti, Rebecchi, Lisi, Hansen & Bertolani, 2006 (basis of record)
Borealibius zetlandicus (Murray, 1907) (basis of record)
Boreonymphon abyssorum (Norman, 1873) (additional source)
Boreonymphon robustum (Bell, 1855) (additional source)
Cephalorhyncha (additional source)
Cepphus carbo Pallas, 1811 (basis of record)
Cepphus columba Pallas, 1811 (basis of record)
Cerorhinca Bonaparte, 1828 (basis of record)
Cerorhinca monocerata (Pallas, 1811) (basis of record)
Chelyosoma inaequale Redikorzev, 1913 (additional source)
Chelyosoma macleayanum Broderip & Sowerby, 1830 (additional source)
Chelyosoma orientale Redikorzev, 1911 (additional source)
Childia groenlandica (Levinsen, 1879) (additional source)
Ciona intestinalis (Linnaeus, 1767) (additional source)
Clavactinia Thornely, 1904 (basis of record)
Cnemidocarpa finmarkiensis (Kiaer, 1893) (additional source)
Cnemidocarpa mollis (Stimpson, 1852) (additional source)
Cnemidocarpa rhizopus (Redikorzev, 1907) (additional source)
Colossendeis angusta Sars, 1877 (additional source)
Colossendeis proboscidea (Sabine, 1824) (additional source)
Conaperta flavibacillum (Jensen, 1878) (basis of record)
Convoluta convoluta (Abildgaard, 1806) (additional source)
Convoluta stylifera Westblad, 1946 accepted as Philactinoposthia stylifera (Westblad, 1946) (basis of record)
Corella borealis Traustedt, 1886 (additional source)
Corellopsis pedunculata Hartmeyer, 1903 (additional source)
Dactylopodola typhle (Remane, 1927) (additional source)
Dakuidae Hooge, 2003 (basis of record)
Dendrodoa aggregata Müller, 1776 (additional source)
Dendrodoa carnea (Agassiz, 1850) (additional source)
Dendrodoa grossularia (Van Beneden, 1846) (additional source)
Dendrodoa pulchella (Rathke, 1806) (additional source)
Didemnum albidum (Verrill, 1871) (additional source)
Didemnum roseum Sars, 1851 (additional source)
Distaplia clavata (Sars, 1851) (additional source)
Dryodora glandiformis (Mertens, 1833) (additional source)
Echiniscoidea (basis of record)
Echiniscoididae Kristensen & Hallas, 1980 (additional source)
Echinoderes angustus Higgins & Kristensen, 1988 (additional source)
Echinoderes aquilonius Higgins & Kristensen, 1988 (additional source)
Echinoderes arlis Higgins, 1966 (additional source)
Echinoderes eximus Higgins & Kristensen, 1988 (additional source)
Echinoderes peterseni Higgins & Kristensen, 1988 (additional source)
Echinoderes remanei (Blake, 1930) (basis of record)
Echinoderes stockmani Adrianov, 1999 in Adrianov & Malakhov, 1999 (basis of record)
Echinoderes svetlanae Adrianov, 1999 in Adrianov & Malakhov, 1999 accepted as Echinoderes remanei (Blake, 1930) (basis of record)
Echinoderes tubilak Higgins & Kristensen, 1988 accepted as Echinoderes remanei (Blake, 1930) (additional source)
Echiurus echiurus (Pallas, 1766) (additional source)
Enteropneusta (basis of record)
Eudistoma vitreum (Sars, 1851) (additional source)
Eugyra glutinans (Moeller, 1842) (additional source)
Eukrohnia fowleri Ritter-Záhony, 1909 (additional source)
Eukrohnia hamata (Möbius, 1875) (additional source)
Eumecynostomum pallidum (Beklemischev, 1915) (additional source)

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