Acanthophora nayadiformis (Delile) Papenfuss, 1968 (additional source)
Acanthurus monroviae Steindachner, 1876 (additional source)
Acartia centrura Giesbrecht, 1889 represented as Acartia (Odontacartia) centrura Giesbrecht, 1889 (additional source)
Acartia tonsa Dana, 1849 represented as Acartia (Acanthacartia) tonsa Dana, 1849 (additional source)
Acetabularia subg. Acicularia caliculus J.V. Lamouroux, 1824 represented as Acetabularia caliculus J.V.Lamouroux, 1824 (additional source)
Acipenser gueldenstaedtii Brandt & Ratzeburg, 1833 (additional source)
Acipenser stellatus Pallas, 1771 (additional source)
Acrochaetium balticum (Rosenvinge) Aleem & Schulz, 1952 (additional source)
Acrothamnion preissii (Sonder) E.M.Wollaston, 1968 (additional source)
Acrothrix gracilis Kylin, 1907 (additional source)
Agardhiella subulata (C.Agardh) Kraft & M.J.Wynne, 1979 (additional source)
Aglaothamnion feldmanniae Halos, 1965 (additional source)
Ahnfeltiopsis flabelliformis (Harvey) Masuda, 1993 (basis of record)
Alaria esculenta (Linnaeus) Greville, 1830 (additional source)
Alexandrium leei Balech, 1985 (additional source)
Alexandrium pseudogonyaulax (Biecheler) Horiguchi ex K.Yuki & Y.Fukuyo, 1992 (additional source)
Alkmaria romijni Horst, 1919 (additional source)
Alpheus inopinatus Holthuis & Gottlieb, 1958 (basis of record)
Alpheus migrans Lewinsohn & Holthuis, 1978 (additional source)
Alpheus rapacida De Man, 1908 (additional source)
Ameira divagans Nicholls, 1939 represented as Ameira divagans divagans Nicholls, 1939 (additional source)
Amphioplus laevis (Lyman, 1874) represented as Amphioplus (Lymanella) laevis (Lyman, 1874) (additional source)
Anadara natalensis (Krauss, 1848) (additional source)
Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974 (additional source)
Anomia chinensis R. A. Philippi, 1849 (basis of record)
Anoplodactylus digitatus (Böhm, 1879) (additional source)
Anotrichium furcellatum (J.Agardh) Baldock, 1976 (additional source)
Antigona lamellaris Schumacher, 1817 (additional source)
Antithamnion densum (Suhr) M.Howe, 1914 (additional source)
Antithamnion diminuatum Wollaston, 1968 (additional source)
Antithamnion subg. Pteroton amphigeneum A.J.K.Millar, 1990 represented as Antithamnion amphigeneum A.Millar, 1990 (additional source)
Antithamnion subg. Pteroton pectinatum (Montagne) Brauner ex Athanasiadis & Tittley represented as Antithamnion pectinatum (Montagne) Brauner, 1994 (additional source)
Antithamnionella elegans (Berthold) J.H.Price & D.M.John, 1986 (additional source)
Antithamnionella spirographidis (Schiffner) E.M.Wollaston, 1968 (additional source)
Antithamnionella sublittoralis (Setchell & N.L.Gardner) Athanasiadis, 1996 (basis of record)
Antithamnionella ternifolia (Hooker f. & Harvey) Lyle, 1922 (additional source)
Apoglossum gregarium (E.Y.Dawson) M.J.Wynne, 1985 accepted as Phrix spatulata (E.Y.Dawson) M.J.Wynne, M.Kamiya & J.A.West, 2018 (additional source)
Ashtoret lunaris (Forskål, 1775) (additional source)
Asparagopsis armata Harvey, 1855 (additional source)
Asparagopsis taxiformis (Delile) Trevisan de Saint-Léon, 1845 (additional source)
Asperococcus scaber Kuckuck, 1899 (additional source)
Aspidosiphon (Akrikos) mexicanus (Murina, 1967) (additional source)
Asterionella japonica Cleve, 1882 (additional source)
Atergatis roseus (Rüppell, 1830) (additional source)
Atherinomorus lacunosus (Forster, 1801) (additional source)
Aulacomya ater (Molina, 1782) accepted as Aulacomya atra (Molina, 1782) (additional source)
Balanus eburneus Gould, 1841 accepted as Amphibalanus eburneus (Gould, 1841) (additional source)
Balanus improvisus Darwin, 1854 accepted as Amphibalanus improvisus (Darwin, 1854) (additional source)
Balanus trigonus Darwin, 1854 (additional source)
Beroe ovatus Bruguière, 1789 accepted as Beroe ovata Bruguière, 1789 (additional source)
Beryx splendens Lowe, 1834 (additional source)
Bhawania goodei Webster, 1884 (additional source)
Blackfordia virginica Mayer, 1910 (additional source)
Boccardia semibranchiata Guérin, 1990 (additional source)
Bonnemaisonia hamifera Hariot, 1891 (additional source)
Botrylloides violaceus Oka, 1927 (additional source)
Botryocladia madagascariensis G.Feldmann, 1945 (additional source)
Bougainvillia rugosa Clarke, 1882 (additional source)
Brachynotus sexdentatus (Risso, 1827) (additional source)
Branchiomma boholense (Grube, 1878) (additional source)
Branchiomma luctuosum (Grube, 1870) (additional source)
Branchiura sowerbyi Beddard, 1892 (additional source)
Bugula neritina (Linnaeus, 1758) (additional source)
Calanopia elliptica (Dana, 1849) (additional source)
Calanopia media Gurney, 1927 (additional source)
Calappa pelii Herklots, 1851 (additional source)
Callinectes danae Smith, 1869 (additional source)
Callinectes sapidus Rathbun, 1896 (additional source)
Cantharus tranquebaricus (Gmelin, 1791) (basis of record)
Canuellina insignis Gurney, 1927 (additional source)
Caprella mutica Schurin, 1935 (additional source)
Carcharhinus altimus (Springer, 1950) (additional source)
Carcharhinus falciformis (Müller & Henle, 1839) (additional source)
Carupa tenuipes Dana, 1852 (additional source)
Caulacanthus ustulatus (Turner) Kützing, 1843 (additional source)
Caulerpa mexicana Sonder ex Kützing, 1849 (additional source)
Caulerpa racemosa (Forsskål) J.Agardh, 1873 (additional source)
Caulerpa scalpelliformis (R.Brown ex Turner) C.Agardh, 1817 (additional source)
Caulerpa taxifolia (M.Vahl) C.Agardh, 1817 (additional source)
Celleporaria aperta (Hincks, 1882) (additional source)
Ceramium bisporum D.L.Ballantine, 1990 (basis of record)
Ceramium strobiliforme G.W.Lawson & D.M.John, 1982 (additional source)
Ceratonereis mirabilis Kinberg, 1865 (additional source)
Cerithiopsis tenthrenois (Melvill, 1896) (additional source)
Cerithium columna G. B. Sowerby I, 1834 (additional source)
Cerithium egenum A. Gould, 1849 (additional source)
Cerithium nesioticum Pilsbry & Vanatta, 1906 (additional source)
Chaetoceros coarctatus Lauder, 1864 (additional source)
Chaetogammarus ischnus (Stebbing, 1899) (additional source)
Chaetogammarus warpachowskyi (G.O. Sars, 1894) (basis of record)
Chama pacifica Broderip, 1835 (additional source)
Charybdis (Charybdis) hellerii (A. Milne-Edwards, 1867) (additional source)
Chattonella marina (Subrahmanyan) Y.Hara & Chihara, 1982 accepted as Chattonella marina var. ovata (Y.Hara & Chihara) Demura & Kawachi, 2009 (additional source)
Chaunax suttkusi Caruso, 1989 (additional source)
Chlamys lischkei (Dunker, 1850) accepted as Zygochlamys patagonica (P. P. King, 1832) (basis of record)
Chondria coerulescens (J.Agardh) Falkenberg, 1901 accepted as Chondria coerulescens (J.Agardh) Sauvageau, 1897 (additional source)
Chondria polyrhiza F.S.Collins & Hervey, 1917 (additional source)
Chondria pygmaea Garbary & Vandermeulen, 1990 (additional source)
Chondrus giganteus Yendo, 1920 (basis of record)
Chorda filum (Linnaeus) Stackhouse, 1797 (additional source)