Actinauge richardi (Marion, 1906) (additional source)
Actinauge verrillii McMurrich, 1893 (additional source)
Actinoscyphia Stephenson, 1920 (original description)
Actinoscyphia aurelia (Stephenson, 1918) (additional source)
Actinoscyphia plebeia (McMurrich, 1893) (additional source)
Actinoscyphia saginata (Verrill, 1882) (additional source)
Actinoscyphiidae Stephenson, 1920 (original description)
Actinostola abyssorum (Danielssen, 1890) (additional source)
Actinostola callosa (Verrill, 1882) (additional source)
Actinostola chilensis McMurrich, 1904 (additional source)
Actinostola crassicornis (Hertwig, 1882) (additional source)
Actinostola groenlandica Carlgren, 1899 (additional source)
Adamsia palliata (Fabricius, 1779) accepted as Calliactis palliata (Müller, 1776) (additional source)
Aiptasia couchi Gosse represented as Aiptasia couchii Gosse (additional source)
Aiptasia couchii Gosse (additional source)
Aiptasiomorpha Stephenson, 1920 (original description)
Aiptasiomorpha minima (Stephenson, 1918) (additional source)
Artemidactis victrix Stephenson, 1918 (additional source)
Bartholomea Duchassaing de Fombressin & Michelotti, 1864 (subsequent type designation)
Bartholomea annulata (Le Sueur, 1817) (additional source)
Bartholomea peruviana (Pax, 1912) (additional source)
Calliactis parasitica (Couch, 1842) (additional source)
Calliactis polypus (Forsskål, 1775) (additional source)
Calliactis reticulata Stephenson, 1918 (additional source)
Calliactis tricolor (Le Sueur, 1817) (additional source)
Calliactis variegata Verrill, 1869 (additional source)
Cereus pedunculatus (Pennant, 1777) (additional source)
Diadumene Stephenson, 1920 (original description)
Diadumene schilleriana (Stoliczka, 1869) (additional source)
Diadumenidae Stephenson, 1920 (original description)
Flosmaris Stephenson, 1920 (original description)
Flosmaris phellioides Stephenson, 1920 (original description)
Halcampa chrysanthellum (Peach in Johnston, 1847) (additional source)
Halcampactis mirabilis Farquhar, 1898 (additional source)
Hormathia andersoni Haddon, 1888 (additional source)
Hormathia castanea (McMurrich, 1904) (additional source)
Hormathia coronata (Gosse, 1858) (additional source)
Hormathia digitata (O.F. Müller, 1776) (additional source)
Hormathia marioni (Haddon, 1889) (additional source)
Hormathia nodosa (Fabricius, 1780) (additional source)
Hormathia pectinata (Hertwig, 1882) (additional source)
Hormathia spinosa (Hertwig, 1882) (additional source)
Isoparactis Stephenson, 1920 (original description)
Isoparactis ferax (Stuckey, 1909) (additional source)
Isophellia sabulosa Carlgren, 1900 (additional source)
Mena Stephenson, 1920 (original description)
Metridium dianthus (Ellis, 1768) (additional source)
Ophiodiscus annulatus Hertwig, 1882 (additional source)
Ophiodiscus sulcatus Hertwig, 1882 (additional source)
Paractis papaver (Drayton in Dana, 1846) (additional source)
Paranthus chromatoderus (Schmarda, 1852) (additional source)
Paraphellia expansa Haddon, 1886 (additional source)
Phellia murocincta Gosse, 1858 (additional source)
Phelliactis hertwigii Simon, 1892 (additional source)
Polysiphonia tuberosa Hollenberg, 1968 (additional source)
Pseudoparactis Stephenson, 1920 (original description)
Pseudoparactis tenuicollis (McMurrich, 1904) (additional source)
Sagartia undata (Müller, 1778) (additional source)
Sagartia viduata (Müller, 1778) (additional source)
Sagartiomorphe carlgreni Kwietniewski, 1898 (additional source)
Sicyonis crassa Hertwig, 1882 (additional source)
Stomphia selaginella (Stephenson, 1918) (additional source)
Stomphia vinosa (McMurrich, 1893) (additional source)
Tealidium cingulatum Hertwig, 1882 (additional source)