Acontiaria Stephenson, 1935 accepted as Metridioidea Rodríguez & Daly in Rodríguez et al., 2014 accepted as Metridioidea Carlgren, 1893 (additional source)
Actinauge richardi (Marion, 1906) (additional source)
Actinia fragacea Tugwell, 1856 (additional source)
Anemonia viridis (Forsskål, 1775) (additional source)
Athenaria accepted as Actiniaria incertae sedis (additional source)
Boloceroidaria accepted as Boloceroididae Carlgren, 1924 (additional source)
Bunodactis verrucosa (Pennant, 1777) (additional source)
Calliactis parasitica (Couch, 1842) (additional source)
Cereus pedunculatus (Pennant, 1777) (additional source)
Diadumene cincta Stephenson, 1925 (additional source)
Edwardsia elegans Verrill, 1869 (additional source)
Endomyaria Stephenson, 1921 accepted as Actinioidea Rafinesque, 1815 (additional source)
Halcampa duodecimcirrata (Sars, 1851) (additional source)
Halcampoides purpurea (Studer, 1879) accepted as Halcampoides purpureus (Studer, 1879) (additional source)
Haliplanella lineata (Verrill, 1869) accepted as Diadumene lineata (Verrill, 1869) (additional source)
Haloclava producta (Stimpson, 1856) (additional source)
Mesomyaria Stephenson, 1921 accepted as Actinostoloidea Carlgren, 1932 (additional source)
Metridium senile (Linnaeus, 1761) (additional source)
Nematostella vectensis Stephenson, 1935 (additional source)
Peachia cylindrica (Reid, 1848) (additional source)
Phellia gausapata Gosse, 1858 (additional source)
Ptychodacteae accepted as Ptychodactinidae Appellöf, 1893 (additional source)
Sagartia troglodytes (Price in Johnston, 1847) accepted as Cylista troglodytes (Price in Johnston, 1847) (additional source)
Sagartiogeton laceratus (Dalyell, 1848) accepted as Sagartia lacerata (Dalyell, 1848) (additional source)