Acthelmis intestinalis (Fabricius, 1780) (additional source)
Actinostola callosa (Verrill, 1882) (additional source)
Actinothoe californica Carlgren, 1940 accepted as Sagartiogeton californicus (Carlgren, 1940) (additional source)
Amphianthus margaritaceus (Danielssen, 1890) (additional source)
Anthopleura artemisia (Pickering in Dana, 1846) (additional source)
Anthopleura elegantissima (Brandt, 1835) (additional source)
Anthopleura fuscoviridis Carlgren, 1949 (additional source)
Anthopleura orientalis Averincev, 1967 accepted as Oulactis orientalis (Averincev, 1967) (additional source)
Anthopleura pacifica Uchida, 1938 accepted as Anthopleura nigrescens (Verrill, 1928) (additional source)
Anthopleura xanthogrammica (Brandt, 1835) (additional source)
Aulactinia stella (Verrill, 1864) (additional source)
Bolocera tuediae (Johnston, 1832) (additional source)
Bunodactis Verrill, 1899 (additional source)
Charisea saxicola Torrey, 1902 (additional source)
Cribrinopsis similis Carlgren, 1921 (additional source)
Diadumene franciscana Hand, 1956 (additional source)
Diadumene lighti Hand, 1956 (additional source)
Edwardsia arctica Carlgren, 1921 (additional source)
Epiactis arctica (Verrill, 1868) (additional source)
Epiactis fernaldi Fautin & Chia, 1986 (additional source)
Epiactis japonica (Verrill, 1869) (additional source)
Epiactis lewisi Carlgren, 1940 (additional source)
Epiactis lisbethae Fautin & Chia, 1986 (additional source)
Epiactis prolifera Verrill, 1869 (additional source)
Epiactis ritteri Torrey, 1902 (additional source)
Halcampa decemtentaculata Hand, 1955 (additional source)
Halcampa vegae Carlgren, 1921 (additional source)
Liponema brevicornis (McMurrich, 1893) accepted as Liponema brevicorne (McMurrich, 1893) (additional source)
Metedwardsia akkeshi (Uchida, 1932) (additional source)
Metridium de Blainville, 1824 (additional source)
Metridium senile (Linnaeus, 1761) (additional source)
Neophellia mutsuensis Uchida, 1938 accepted as Flosmaris mutsuensis (Uchida, 1938) (additional source)
Paraphelliactis pabista Dunn, 1982 (additional source)
Peachia parasitica (Agassiz, 1861) (additional source)
Peachia quinquecapitata McMurrich, 1913 (additional source)
Phelliactis magna (Wassilieff, 1908) (additional source)
Stephanauge tuberculata (Hertwig, 1882) (additional source)
Stomphia coccinea (Müller, 1776) (additional source)
Stomphia japonica Carlgren, 1943 (additional source)
Tealia Gosse, 1858 (additional source)
Urticina columbiana Verrill, 1922 (additional source)
Urticina coriacea (Cuvier, 1798) (additional source)
Urticina crassicornis (Müller, 1776) (additional source)
Urticina lofotensis (Danielssen, 1890) accepted as Urticina eques (Gosse, 1858) (additional source)
Urticina piscivora (Sebens & Laakso, 1978) (additional source)
Zaolutus actius Hand, 1955 (additional source)