Actinauge longicornis (Verrill, 1882) (additional source)
Actinostola crassicornis (Hertwig, 1882) (additional source)
Amphianthus lacteus (Mc Murrich, 1893) (additional source)
Antholoba achates (Drayton in Dana, 1846) (additional source)
Anthothoe chilensis (Lesson, 1830) (additional source)
Aulactinia marplatensis (Zamponi, 1977) (additional source)
Austroneophellia luciae Zamponi, 1978 (additional source)
Bathelia candida Moseley, 1880 (additional source)
Bolocera kerguelensis Studer, 1879 (additional source)
Carcinactis dolosa Riemann-Zürneck, 1975 (additional source)
Choriactis laevis (Carlgren, 1899) accepted as Paractis laevis (Carlgren, 1899) (additional source)
Corynactis carnea Studer, 1879 (additional source)
Epiactis georgiana Carlgren, 1927 (additional source)
Hormathia pectinata (Hertwig, 1882) (additional source)
Isosicyonis alba (Studer, 1879) (additional source)
Limnactinia nuda Carlgren, 1927 (additional source)
Monactis vestita (Gravier, 1918) (additional source)
Neoparacondylactis haraldoi Zamponi, 1974 (additional source)
Oculina patagonica de Angelis D'Ossat, 1908 (additional source)
Oulactis muscosa (Drayton in Dana, 1846) (additional source)
Paraisometridium pehuensis Zamponi, 1978 accepted as Paraisometridium pehuense Zamponi, 1978 accepted as Metridium senile (Linnaeus, 1761) (additional source)
Paranthus crassus (Carlgren, 1899) (additional source)
Peachia koreni McMurrich, 1893 (additional source)
Phellia exlex (McMurrich, 1904) (additional source)
Phelliactis callicyclus Riemann-Zürneck, 1973 (additional source)
Phelliactis lophohelia Riemann-Zürneck, 1973 (additional source)
Phelliactis michaelsarsi (Carlgren, 1934) accepted as Paraphelliactis michaelsarsi Carlgren, 1934 (additional source)
Phelliactis pelophila Riemann-Zürneck, 1973 (additional source)
Phlyctenanthus australis Carlgren, 1950 (additional source)
Phymactis clematis (Drayton in Dana, 1846) (additional source)
Pseudoparactis tenuicollis (McMurrich, 1904) (additional source)
Ramirezia balsae Zamponi, 1980 (additional source)
Sagartianthus fasciarum Zamponi, 1980 (additional source)
Sphincteractis sanmatiensis Zamponi, 1976 accepted as Corynactis sanmatiensis (Zamponi, 1976) (additional source)
Tricnidactis errans De Oliveira Pires, 1987 (additional source)
Urticinopsis crassa Carlgren, 1938 (additional source)