Actinauge Verrill, 1883 (basis of record)
Actinauge richardi (Marion, 1906) (basis of record)
Actinia Linnaeus, 1767 (basis of record)
Actinia equina (Linnaeus, 1758) (basis of record)
Actinia fragacea Tugwell, 1856 (basis of record)
Actinia prasina Gosse, 1860 (basis of record)
Actiniaria incertae sedis (basis of record)
Actiniidae Rafinesque, 1815 (basis of record)
Actinostola Verrill, 1883 (basis of record)
Actinostola callosa (Verrill, 1882) (basis of record)
Actinostolidae Carlgren, 1932 (basis of record)
Actinothoe Fischer, 1889 (basis of record)
Actinothoe sphyrodeta (Gosse, 1858) (basis of record)
Adamsia Forbes, 1840 accepted as Calliactis Verrill, 1869 (basis of record)
Adamsia carciniopados (Otto, 1823) accepted as Adamsia palliata (Fabricius, 1779) accepted as Calliactis palliata (Müller, 1776) (basis of record)
Aiptasia Gosse, 1858 (basis of record)
Aiptasia couchii Gosse (basis of record)
Aiptasia mutabilis (Gravenhorst, 1831) (basis of record)
Aiptasiidae Carlgren, 1924 (basis of record)
Aiptasiogeton Schmidt, 1972 (basis of record)
Aiptasiogeton pellucidus (Hollard, 1848) accepted as Aiptasiogeton hyalinus (Delle Chiaje, 1822) (basis of record)
Amphianthus Hertwig, 1882 (basis of record)
Amphianthus dohrnii (Koch, 1878) (basis of record)
Andresia (basis of record)
Andresia partenopea (Andrès, 1883) (basis of record)
Andresiidae Stephenson, 1922 (basis of record)
Andvakiidae Danielssen, 1890 (basis of record)
Anemonactis Andres, 1881 (basis of record)
Anemonactis mazeli (Jourdan, 1880) (basis of record)
Anemonia Risso, 1827 (basis of record)
Anemonia viridis (Forsskål, 1775) (basis of record)
Anthopleura Duchassaing de Fonbressin & Michelotti, 1860 (basis of record)
Anthopleura ballii (Cocks, 1851) (basis of record)
Anthopleura thallia (Gosse, 1854) (basis of record)
Arachnactidae McMurrich, 1910 (basis of record)
Arachnactis Sars, 1846 (basis of record)
Arachnactis albida Sars, 1846 (basis of record)
Arachnanthus Carlgren, 1912 (basis of record)
Arachnanthus sarsi Carlgren, 1912 (basis of record)
Aulactinia Agassiz in Verrill, 1864 (basis of record)
Aulactinia verrucosa (Pennant, 1777) accepted as Bunodactis verrucosa (Pennant, 1777) (basis of record)
Aurelianiidae Andres, 1883 accepted as Capneidae Gosse, 1860 (basis of record)
Bolocera Gosse, 1860 (basis of record)
Bolocera tuediae (Johnston, 1832) (basis of record)
Bunodactis Verrill, 1899 (basis of record)
Bunodactis verrucosa (Pennant, 1777) (basis of record)
Calliactis Verrill, 1869 (basis of record)
Calliactis parasitica (Couch, 1842) (basis of record)
Cataphellia Stephenson, 1929 (basis of record)
Cataphellia brodricii (Gosse, 1859) (basis of record)
Cereus Ilmoni, 1830 (basis of record)
Cereus pedunculatus (Pennant, 1777) (basis of record)
Cerianthidae Milne Edwards & Haime, 1851 (basis of record)
Cerianthus Delle Chiaje, 1841 (basis of record)
Corallimorphidae Hertwig, 1882 (basis of record)
Corallimorphus Moseley, 1877 (basis of record)
Corynactis Allman, 1846 (basis of record)
Corynactis viridis Allman, 1846 (basis of record)
Diadumene Stephenson, 1920 (basis of record)
Diadumene cincta Stephenson, 1925 (basis of record)
Diadumenidae Stephenson, 1920 (basis of record)
Edwardsia Quatrefages, 1842 (basis of record)
Edwardsia beautempsi Quatrefages, 1842 accepted as Edwardsia beautempsii Quatrefages, 1842 (basis of record)
Edwardsia claparedii (Panceri, 1869) (basis of record)
Edwardsia danica Carlgren, 1921 (basis of record)
Edwardsia delapiae Carlgren & Stephenson, 1928 (basis of record)
Edwardsia ivelli Manuel, 1975 (basis of record)
Edwardsia longicornis Carlgren, 1921 (basis of record)
Edwardsia timida Quatrefages, 1842 (basis of record)
Edwardsia tuberculata Dueben & Koren, 1847 (basis of record)
Edwardsiella Andres, 1883 (basis of record)
Edwardsiidae Andres, 1881 (basis of record)
Epizoanthidae Delage & Hérouard, 1901 (basis of record)
Epizoanthus Gray, 1867 (basis of record)
Epizoanthus couchii (Johnston in Couch, 1844) (basis of record)
Epizoanthus macintoshi Haddon & Shackleton, 1891 (basis of record)
Epizoanthus paguriphilus Verrill, 1883 (basis of record)
Epizoanthus papillosus Johnston, 1842 (basis of record)
Gonactinia Sars, 1851 (basis of record)
Gonactinia prolifera (Sars, 1835) (basis of record)
Gonactiniidae Carlgren, 1893 (basis of record)
Halcampa Gosse, 1858 (basis of record)
Halcampa chrysanthellum (Peach in Johnston, 1847) (basis of record)
Halcampidae Andres, 1883 (basis of record)
Halcampoides Danielssen, 1890 (basis of record)
Halcampoides abyssorum Danielssen, 1890 (basis of record)
Halcampoididae Appellöf, 1896 (basis of record)
Haliplanella Hand, 1956 (basis of record)
Haloclavidae Verrill, 1899 (basis of record)
Hormathia Gosse, 1859 (basis of record)
Hormathia alba (Andres, 1881) (basis of record)
Hormathia coronata (Gosse, 1858) (basis of record)
Hormathia digitata (O.F. Müller, 1776) (basis of record)
Hormathia nodosa (Fabricius, 1780) (basis of record)
Hormathiidae Carlgren, 1932 (basis of record)
Isozoanthus Carlgren in Chun, 1903 (basis of record)
Isozoanthus sulcatus (Gosse, 1860) (basis of record)
Mesacmaea Andres, 1883 (basis of record)
Metridiidae Carlgren, 1893 (basis of record)
Metridium de Blainville, 1824 (basis of record)