Abietinaria Kirchenpauer, 1884 (additional source)
Aega Leach, 1816 (additional source)
Alcyonidiidae Johnston, 1837 (additional source)
Alcyonidium mytili Dalyell, 1848 accepted as Alcyonidioides mytili (Dalyell, 1848) (additional source)
Anthuridae Leach, 1814 (additional source)
Antipathes Pallas, 1766 (additional source)
Antipathidae Ehrenberg, 1834 (additional source)
Aplidium Savigny, 1816 (additional source)
Aplysia Linnaeus, 1767 (additional source)
Aspidelectra Levinsen, 1909 (additional source)
Atollidae Hickson, 1906 (additional source)
Aurelia Lamarck, 1816 (additional source)
Aurelia aurita (Linnaeus, 1758) (additional source)
Balanus Costa, 1778 (additional source)
Beania Johnston, 1840 (additional source)
Beania mirabilis Johnston, 1840 (additional source)
Beaniidae Canu & Bassler, 1927 (additional source)
Biemna Gray, 1867 (additional source)
Boccardiella Blake & Kudenov, 1978 (additional source)
Bursovaginoidea (basis of record)
Byblis Boeck, 1871 (additional source)
Calycella Hincks, 1864 in Allman, 1864 (additional source)
Calycella hispida (Nutting, 1896) (basis of record)
Campanulinidae Hincks, 1868 (basis of record)
Chorizopora Hincks, 1879 (additional source)
Chorizopora brongniartii (Audouin, 1826) (additional source)
Chromadorina Filipjev, 1918 (basis of record)
Chrysaora Péron & Lesueur, 1810 (additional source)
Cnidaria (additional source)
Corycaeus Dana, 1846 (additional source)
Crangonidae Haworth, 1825 (additional source)
Cribrilina Gray, 1848 (additional source)
Cribrilina annulata (O. Fabricius, 1780) accepted as Juxtacribrilina annulata (Fabricius, 1780) (additional source)
Cyanea Péron & Lesueur, 1810 (additional source)
Cyanea capillata (Linnaeus, 1758) (additional source)
Cyaneidae L. Agassiz, 1862 (additional source)
Cyclorhagida (additional source)
Daptonema Cobb, 1920 (additional source)
Diaphorodoris Iredale & O'Donoghue, 1923 (additional source)
Didemnum Savigny, 1816 (additional source)
Diphyinae Quoy & Gaimard, 1827 (additional source)
Echinoderes Claparède, 1863 (additional source)
Echinoderidae Carus, 1885 (additional source)
Echiurus Guérin-Méneville, 1831 (additional source)
Ehlersia ferrugina Langerhans, 1881 accepted as Paraehlersia ferrugina (Langerhans, 1881) (additional source)
Electra Lamouroux, 1816 (additional source)
Escharina Milne Edwards, 1836 (additional source)
Eudendriidae L. Agassiz, 1862 (basis of record)
Flabellina verrucosa (M. Sars, 1829) accepted as Coryphella verrucosa (M. Sars, 1829) (basis of record)
Grantia compressa (Fabricius, 1780) (additional source)
Labidocera Lubbock, 1853 (additional source)
Laomedea Lamouroux, 1812 (additional source)
Laomedea calceolifera (Hincks, 1871) (additional source)
Laomedea flexuosa Alder, 1857 (additional source)
Leuconia Grant, 1833 (additional source)
Lophothrix Giesbrecht, 1895 (additional source)
Lophothrix frontalis Giesbrecht, 1895 (additional source)
Melinna elisabethae McIntosh, 1885 (additional source)
Molgula Forbes, 1848 (additional source)
Nausithoidae Haeckel, 1880 (additional source)
Nebalia Leach, 1814 (basis of record)
Nolellidae Harmer, 1915 (additional source)
Oplophoridae Dana, 1852 (additional source)
Pelagia Péron & Lesueur, 1810 (additional source)
Pelagia noctiluca (Forsskål, 1775) (additional source)
Pelagiidae Gegenbaur, 1856 (additional source)
Periphyllidae Haeckel, 1880 (additional source)
Podon Lilljeborg, 1853 (additional source)
Polybius Leach, 1820 (additional source)
Polycarpa Heller, 1877 (additional source)
Prayidae Kölliker, 1853 (basis of record)
Prayinae Chun, 1897 (basis of record)
Processidae Ortmann, 1896 (additional source)
Puellina innominata (Couch, 1844) accepted as Puellina (Cribrilaria) innominata (Couch, 1844) accepted as Cribrilaria innominata (Couch, 1844) (additional source)
Rhizostomatidae Cuvier, 1800 (additional source)
Rhizostomeae (additional source)
Scolecitrichidae Giesbrecht, 1893 (additional source)
Scyphozoa (additional source)
Semaeostomeae (additional source)
Styela Fleming, 1822 (additional source)
Styela clava Herdman, 1881 (additional source)
Suberites Nardo, 1833 (additional source)
Sulculeolariinae Totton, 1954 (additional source)
Tharybidae Sars G.O., 1902 (additional source)
Tomopteris cavallii Rosa, 1908 (additional source)
Trididemnum Della Valle, 1881 (additional source)
Typosyllis vittata (Grube, 1840) accepted as Syllis vittata Grube, 1840 (basis of record)
Ulmaridae Haeckel, 1880 (additional source)
Umbonula Hincks, 1880 (additional source)
Vesiculariidae Johnston, 1838 (additional source)
Walkeriidae Hincks, 1877 emend. Bassler, 1953 (additional source)