Anthopleura artemisia (Pickering in Dana, 1846) (additional source)
Anthopleura elegantissima (Brandt, 1835) (additional source)
Anthopleura xanthogrammica (Brandt, 1835) (additional source)
Antipathes Pallas, 1766 (additional source)
Bicidium aequoreae McMurrich, 1913 accepted as Peachia quinquecapitata McMurrich, 1913 (additional source)
Corallimorphus Moseley, 1877 (additional source)
Corynactis californica Carlgren, 1936 (additional source)
Cribrinopsis fernaldi Siebert & Spaulding, 1976 (additional source)
Cribrinopsis williamsi Carlgren, 1940 (additional source)
Edwardsia sipunculoides (Stimpson, 1853) (additional source)
Epiactis fernaldi Fautin & Chia, 1986 (additional source)
Epiactis lisbethae Fautin & Chia, 1986 (additional source)
Epiactis prolifera Verrill, 1869 (additional source)
Epiactis ritteri Torrey, 1902 (additional source)
Epizoanthus scotinus Wood, 1957 (additional source)
Halcampa crypta Siebert & Hand, 1974 (additional source)
Halcampa decemtentaculata Hand, 1955 (additional source)
Halcampoides purpurea (Studer, 1879) accepted as Halcampoides purpureus (Studer, 1879) (additional source)
Haliplanella lineata (Verrill, 1869) accepted as Diadumene lineata (Verrill, 1869) (additional source)
Liponema brevicornis (McMurrich, 1893) accepted as Liponema brevicorne (McMurrich, 1893) (additional source)
Metridium de Blainville, 1824 (additional source)
Metridium senile (Linnaeus, 1761) (additional source)
Nematostella vectensis Stephenson, 1935 (additional source)
Pachycerianthus fimbriatus McMurrich, 1910 (additional source)
Paractinostola faeculenta (McMurrich, 1893) accepted as Actinostola faeculenta (McMurrich, 1893) (additional source)
Paracyathus stearnsii Verrill, 1869 (additional source)
Peachia quinquecapitata McMurrich, 1913 (additional source)
Solenosmilia variabilis Duncan, 1873 (additional source)
Stephanauge annularis Carlgren, 1936 (additional source)
Stomphia (Gosse, 1859) (additional source)
Stomphia coccinea (Müller, 1776) (additional source)
Stomphia didemon Siebert, 1973 (additional source)
Urticina Ehrenberg, 1834 (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)