Actinia bermudensis (McMurrich, 1889) (additional source)
Actinia equina (Linnaeus, 1758) (additional source)
Actinia fragacea Tugwell, 1856 (additional source)
Actinia prasina Gosse, 1860 (additional source)
Actinothoe sphyrodeta (Gosse, 1858) (additional source)
Adamsia palliata (Fabricius, 1779) accepted as Calliactis palliata (Müller, 1776) (additional source)
Aiptasia diaphana (Rapp, 1829) accepted as Exaiptasia diaphana (Rapp, 1829) (additional source)
Aiptasia eruptaurantia (Field, 1949) accepted as Aiptasiogeton eruptaurantia (Field, 1949) (additional source)
Aiptasia mutabilis (Gravenhorst, 1831) (additional source)
Aiptasiogeton hyalinus (Delle Chiaje, 1822) (additional source)
Amphianthus dohrnii (Koch, 1878) (additional source)
Andresia partenopea (Andrès, 1883) (additional source)
Anemonia sulcata (Pennant, 1777) (additional source)
Anthopleura ballii (Cocks, 1851) (additional source)
Anthopleura thallia (Gosse, 1854) (additional source)
Bunodactis rubripunctata (Grube, 1840) (additional source)
Bunodactis verrucosa (Pennant, 1777) (additional source)
Bunodosoma biscayensis (Fischer, 1874) accepted as Bunodosoma biscayense (Fischer, 1874) accepted as Anthopleura biscayensis (Fischer, 1874) (additional source)
Calliactis parasitica (Couch, 1842) (additional source)
Diadumene cincta Stephenson, 1925 (additional source)
Diadumene lighti Hand, 1956 (additional source)
Edwardsia claparedii (Panceri, 1869) (additional source)
Mesacmaea mitchelli (Gosse, 1853) accepted as Mesacmaea mitchellii (Gosse, 1853) (additional source)
Metridium exilis Hand, 1956 accepted as Metridium exile Hand, 1956 (additional source)
Metridium farcimen (Brandt, 1835) (additional source)
Metridium senile (Linnaeus, 1761) (additional source)
Paraisometridium pehuense Zamponi, 1978 accepted as Metridium senile (Linnaeus, 1761) (source of synonymy)
Paraisometridium pehuensis Zamponi, 1978 accepted as Paraisometridium pehuense Zamponi, 1978 accepted as Metridium senile (Linnaeus, 1761) (source of synonymy)
Paranemonia cinerea (Contarini, 1844) (additional source)
Sagartia elegans (Dalyell, 1848) accepted as Cylista elegans (Dalyell, 1848) (additional source)
Sagartia ornata (Holdsworth, 1855) accepted as Cylista ornata (Holdsworth, 1855) (additional source)
Sagartia troglodytes (Price in Johnston, 1847) accepted as Cylista troglodytes (Price in Johnston, 1847) (additional source)
Sagartiogeton undatus (Müller, 1778) accepted as Cylista undata (Müller, 1778) accepted as Sagartia undata (Müller, 1778) (additional source)
Scolanthus callimorphus Gosse, 1853 (additional source)
Telmatactis forskalii (Hemprich & Ehrenberg in Ehrenberg, 1834) (additional source)
Tricnidactis errans De Oliveira Pires, 1987 (additional source)
Urticina eques (Gosse, 1858) (additional source)
Urticina felina (Linnaeus, 1761) (additional source)