Acontiaria Stephenson, 1935 (additional source)
Actinauge Verrill, 1883 (additional source)
Actinauge richardi (Marion, 1906) (additional source)
Actinia equina (Linnaeus, 1758) (additional source)
Actiniaria (additional source)
Actiniidae Rafinesque, 1815 (additional source)
Actinostola Verrill, 1883 (additional source)
Actinostola callosa (Verrill, 1882) (additional source)
Actinostolidae Carlgren, 1932 (additional source)
Actinothoe Fischer, 1889 (additional source)
Actinothoe sphyrodeta (Gosse, 1858) (additional source)
Adamsia palliata (Fabricius, 1779) accepted as Calliactis palliata (Müller, 1776) (additional source)
Aiptasia Gosse, 1858 (additional source)
Aiptasia couchii Gosse (additional source)
Aiptasiidae Carlgren, 1924 (additional source)
Andresia parthenopea (Andrès, 1883) accepted as Andresia partenopea (Andrès, 1883) (additional source)
Andresiidae Stephenson, 1922 (additional source)
Anemonactis Andres, 1881 (additional source)
Anemonia Risso, 1827 (additional source)
Anemonia sulcata (Pennant, 1777) (additional source)
Antholoba Hertwig, 1882 (additional source)
Antholoba achates (Drayton in Dana, 1846) (additional source)
Anthopleura Duchassaing de Fonbressin & Michelotti, 1860 (additional source)
Anthopleura ballii (Cocks, 1851) (additional source)
Anthopleura thallia (Gosse, 1854) (additional source)
Athenaria (additional source)
Bolocera Gosse, 1860 (additional source)
Bolocera tuediae (Johnston, 1832) (additional source)
Bunodactis Verrill, 1899 (additional source)
Bunodactis verrucosa (Pennant, 1777) (additional source)
Calliactis Verrill, 1869 (additional source)
Calliactis parasitica (Couch, 1842) (additional source)
Cataphellia Stephenson, 1929 (additional source)
Cataphellia brodricii (Gosse, 1859) (additional source)
Cereus pedunculatus (Pennant, 1777) (additional source)
Corallimorpharia (additional source)
Corallimorphidae Hertwig, 1882 (additional source)
Corallimorphus Moseley, 1877 (additional source)
Corynactis Allman, 1846 (additional source)
Corynactis viridis Allman, 1846 (additional source)
Diadumene Stephenson, 1920 (additional source)
Diadumene cincta Stephenson, 1925 (additional source)
Diadumenidae Stephenson, 1920 (additional source)
Edwardsia beautempsi Quatrefages, 1842 accepted as Edwardsia beautempsii Quatrefages, 1842 (additional source)
Edwardsia danica Carlgren, 1921 (additional source)
Edwardsia timida Quatrefages, 1842 (additional source)
Edwardsia tuberculata Dueben & Koren, 1847 (additional source)
Endomyaria Stephenson, 1921 (additional source)
Gonactinia Sars, 1851 (additional source)
Gonactinia prolifera (Sars, 1835) (additional source)
Gonactiniidae Carlgren, 1893 (additional source)
Halcampa Gosse, 1858 (additional source)
Halcampidae Andres, 1883 (additional source)
Halcampoides Danielssen, 1890 (additional source)
Halcampoides abyssorum Danielssen, 1890 (additional source)
Halcampoides purpurea (Studer, 1879) accepted as Halcampoides purpureus (Studer, 1879) (additional source)
Halcampoididae Appellöf, 1896 (additional source)
Haloclavidae Verrill, 1899 (additional source)
Hormathia Gosse, 1859 (additional source)
Hormathia coronata (Gosse, 1858) (additional source)
Hormathia digitata (O.F. Müller, 1776) (additional source)
Hormathia nodosa (Fabricius, 1780) (additional source)
Hormathiidae Carlgren, 1932 (additional source)
Isophelliidae accepted as Andvakiidae Danielssen, 1890 (additional source)
Mesacmaea Andres, 1883 (additional source)
Mesomyaria Stephenson, 1921 accepted as Actinostoloidea Carlgren, 1932 (additional source)
Metridiidae Carlgren, 1893 (additional source)
Metridium de Blainville, 1824 (additional source)
Metridium senile (Linnaeus, 1761) (additional source)
Nematostella Stephenson, 1935 (additional source)
Nematostella vectensis Stephenson, 1935 (additional source)
Nynantheae accepted as Enthemonae (additional source)
Paraedwardsia Carlgren in Nordgaard, 1905 (additional source)
Paraedwardsia arenaria Carlgren in Nordgaard, 1905 (additional source)
Paraphellia expansa Haddon, 1886 (additional source)
Peachia Gosse, 1855 (additional source)
Phellia Gosse, 1858 (additional source)
Phellia gausapata Gosse, 1858 (additional source)
Phelliactis Simon, 1892 (additional source)
Protanthea Carlgren, 1891 (additional source)
Protanthea simplex Carlgren, 1891 (additional source)
Protantheae accepted as Gonactiniidae Carlgren, 1893 (additional source)
Sagartia Gosse, 1855 (additional source)
Sagartia elegans (Dalyell, 1848) accepted as Cylista elegans (Dalyell, 1848) (additional source)
Sagartia troglodytes (Price in Johnston, 1847) accepted as Cylista troglodytes (Price in Johnston, 1847) (additional source)
Sagartiidae Gosse, 1858 (additional source)
Sagartiogeton Carlgren, 1924 (additional source)
Sagartiogeton laceratus (Dalyell, 1848) accepted as Sagartia lacerata (Dalyell, 1848) (additional source)
Sagartiogeton undatus (Müller, 1778) accepted as Cylista undata (Müller, 1778) accepted as Sagartia undata (Müller, 1778) (additional source)
Stomphia (Gosse, 1859) (additional source)
Stomphia coccinea (Müller, 1776) (additional source)
Telmatactis Gravier, 1916 (additional source)
Telmatactis forskalii (Hemprich & Ehrenberg in Ehrenberg, 1834) (additional source)
Thenaria (additional source)