Acthelmis intestinalis (Fabricius, 1780) (additional source)
Acthelmis schaudinnii Carlgren, 1921 accepted as Haliactis arctica Carlgren, 1921 (original description)
Actinia equina (Linnaeus, 1758) (additional source)
Actinostola abyssorum (Danielssen, 1890) (additional source)
Actinostola callosa (Verrill, 1882) (additional source)
Anthosactis ingolfi Carlgren, 1921 (original description)
Bolocera maxima Carlgren, 1921 (original description)
Bolocera tuediae (Johnston, 1832) (additional source)
Cactosoma abyssorum Danielssen, 1890 (additional source)
Cribrinopsis Carlgren, 1921 (original description)
Cribrinopsis similis Carlgren, 1921 (original description)
Edwardsia andresi Danielssen, 1890 (additional source)
Edwardsia arctica Carlgren, 1921 (original description)
Edwardsia danica Carlgren, 1921 (original description)
Edwardsia finmarchica Carlgren, 1921 (original description)
Edwardsia fusca Danielssen, 1890 (additional source)
Edwardsia islandica Carlgren, 1921 (original description)
Edwardsia longicornis Carlgren, 1921 (additional source)
Edwardsia tuberculata Dueben & Koren, 1847 (additional source)
Edwardsia vegae Carlgren, 1921 (original description)
Edwardsia vitrea (Danielssen, 1890) (additional source)
Epiactis arctica (Verrill, 1868) (additional source)
Epiactis incerta Carlgren, 1921 (original description)
Epiactis marsupialis Carlgren, 1901 (additional source)
Epiparactis Carlgren, 1921 (original description)
Epiparactis dubia Carlgren, 1921 (original description)
Gonactinia prolifera (Sars, 1835) (additional source)
Halcampa arctica Carlgren, 1893 (additional source)
Halcampa duodecimcirrata (Sars, 1851) (additional source)
Halcampoides purpurea (Studer, 1879) accepted as Halcampoides purpureus (Studer, 1879) (additional source)
Haliactis Carlgren, 1921 (original description)
Haliactis arctica Carlgren, 1921 (original description)
Isoedwardsia Carlgren, 1900 (original description)
Isoedwardsia ingolfi Carlgren, 1921 (original description)
Isoedwardsia mediterranea Carlgren, 1931 accepted as Scolanthus callimorphus Gosse, 1853 (additional source)
Limnactinia Carlgren, 1921 (original description)
Limnactinia laevis Carlgren, 1921 (original description)
Limnactiniidae Carlgren, 1921 (original description)
Paraedwardsia Carlgren in Nordgaard, 1905 (additional source)
Paraedwardsia arenaria Carlgren in Nordgaard, 1905 (additional source)
Paraedwardsia sarsii (Dueben & Koren, 1847) (additional source)
Parasicyonis Carlgren, 1921 (original description)
Parasicyonis sarsii Carlgren, 1921 (original description)
Peachia boekii (Danielssen & Koren, 1856) accepted as Peachia boeckii (Danielssen & Koren, 1856) accepted as Peachia hastata Gosse, 1855 (additional source)
Peachia hastata Gosse, 1855 (additional source)
Protanthea simplex Carlgren, 1891 (additional source)
Ptychodactis patula Appellöf, 1893 (additional source)
Pycnanthus densus Carlgren, 1921 (original description)
Pycnanthus laevis Carlgren, 1921 (original description)
Sicyonis ingolfi Carlgren, 1921 (original description)
Sicyonis tuberculata Carlgren, 1921 (original description)
Sicyonis variabilis Carlgren, 1921 (original description)
Sideractis glacialis Danielssen, 1890 (additional source)
Siphonactinopsis Carlgren, 1921 (original description)
Siphonactinopsis laevis Carlgren, 1921 (original description)
Stomphia coccinea (Müller, 1776) (additional source)
Stomphia polaris (Danielssen, 1890) (additional source)
Tealidium jungerseni Carlgren, 1921 (original description)
Urticina eques (Gosse, 1858) (source of synonymy)
Urticina felina (Linnaeus, 1761) (additional source)
Urticina lofotensis (Danielssen, 1890) accepted as Urticina eques (Gosse, 1858) (source of synonymy)