Acontiaria Stephenson, 1935 (basis of record)
Actinauge verrilli McMurrich, 1893 accepted as Actinauge verrillii McMurrich, 1893 (basis of record)
Actinauge verrillii McMurrich, 1893 (basis of record)
Actinernidae Stephenson, 1922 (additional source)
Actinernus elongatus (Hertwig, 1882) (additional source)
Actiniaria (additional source)
Actinioidea Rafinesque, 1815 (basis of record)
Actinoscyphia plebeia (McMurrich, 1893) (additional source)
Actinostola crassicornis (Hertwig, 1882) (additional source)
Aiptasia minima Stephenson, 1918 accepted as Aiptasiomorpha minima (Stephenson, 1918) (source of synonymy)
Aiptasia prima (Stephenson, 1918) (additional source)
Aiptasioides Stephenson, 1918 accepted as Aiptasia Gosse, 1858 (basis of record)
Aiptasioides prima Stephenson, 1918 accepted as Aiptasia prima (Stephenson, 1918) (basis of record)
Aiptasiomorpha minima (Stephenson, 1918) (additional source)
Antipatharia (basis of record)
Antipathidae Ehrenberg, 1834 (additional source)
Artemidactis Stephenson, 1918 (additional source)
Artemidactis victrix Stephenson, 1918 (additional source)
Athenaria (basis of record)
Aulactinia sulcata (Clubb, 1902) (additional source)
Aureliana georgiana Carlgren, 1927 accepted as Capnea georgiana (Carlgren, 1927) (basis of record)
Aureliania Gosse, 1860 (basis of record)
Bathyphellia australis Dunn, 1983 (additional source)
Bolocera kerguelensis Studer, 1879 (additional source)
Bolocera paucicornis Dunn, 1983 (additional source)
Bolocera tuediae (Johnston, 1832) (additional source)
Bolocera tuediae kerguelensis Studer, 1879 accepted as Bolocera kerguelensis Studer, 1879 (source of synonymy)
Capnea georgiana (Carlgren, 1927) (additional source)
Ceriantharia (additional source)
Corallimorphus profundus Moseley, 1877 (additional source)
Corallimorphus rigidus Moseley, 1877 (additional source)
Dactylanthus antarcticus (Clubb, 1908) (additional source)
Edwardsia intermedia McMurrich, 1893 accepted as Scolanthus intermedius (McMurrich, 1893) (additional source)
Edwardsia meridionalis Williams, 1981 (additional source)
Eltaninactis infundibulum Dunn, 1983 (additional source)
Endocoelantheae accepted as Actinernoidea Stephenson, 1922 (basis of record)
Endomyaria Stephenson, 1921 (basis of record)
Epiactis georgiana Carlgren, 1927 (additional source)
Galatheanthemum profundale Carlgren, 1956 (additional source)
Glyphoperidium bursa Roule, 1909 (additional source)
Hexacorallia (additional source)
Hormathia insignis (Stephenson, 1918) (additional source)
Hormathia lacunifera (Stephenson, 1918) (additional source)
Hormosoma scotti Stephenson, 1918 (additional source)
Isosicyonis alba (Studer, 1879) (additional source)
Kadosactidae Riemann-Zürneck, 1991 accepted as Kadosactinidae Riemann-Zürneck, 1991 (additional source)
Kadosactinidae Riemann-Zürneck, 1991 (basis of record)
Kadosactis antarctica (Carlgren, 1928) (additional source)
Leptoteichus Stephenson, 1918 (additional source)
Leptoteichus insignis Stephenson, 1918 accepted as Hormathia insignis (Stephenson, 1918) (additional source)
Mesomyaria Stephenson, 1921 accepted as Actinostoloidea Carlgren, 1932 (basis of record)
Metridioidea Carlgren, 1893 (basis of record)
Preactiniidae England in England & Robson, 1984 (basis of record)
Ptychodacteae accepted as Ptychodactinidae Appellöf, 1893 (basis of record)
Ptychodactinidae Appellöf, 1893 (basis of record)
Schizopathidae Brook, 1889 (additional source)
Scolanthus Gosse, 1853 (additional source)
Scolanthus intermedius (McMurrich, 1893) (basis of record)
Sicyonis erythrocephala (Pax, 1922) (additional source)
Stomphia selaginella (Stephenson, 1918) (additional source)
Thenaria (basis of record)
Urticinopsis antarctica (Verrill, 1922) (additional source)