Anthopleura artemisia (Pickering in Dana, 1846) (additional source)
Anthopleura elegantissima (Brandt, 1835) (additional source)
Anthopleura sola Pearse & Francis, 2000 (additional source)
Anthopleura xanthogrammica (Brandt, 1835) (additional source)
Coenocyathus bowersi Vaughan, 1906 (additional source)
Corynactis californica Carlgren, 1936 (additional source)
Cribrinopsis fernaldi Siebert & Spaulding, 1976 (additional source)
Diadumene leucolena (Verrill, 1866) (additional source)
Epiactis prolifera Verrill, 1869 (additional source)
Epizoanthus scotinus Wood, 1957 (additional source)
Metridium farcimen (Brandt, 1835) (additional source)
Metridium senile (Linnaeus, 1761) (additional source)
Pachycerianthus fimbriatus McMurrich, 1910 (additional source)
Paracyathus stearnsii Verrill, 1869 (additional source)
Parazoanthus lucificum Cutress & Pequenat, 1960 accepted as Savalia lucifica (Cutress C.E. & Pequegnat W.E., 1960) (additional source)
Phyllactis Milne Edwards & Haime, 1851 accepted as Actinostella Duchassaing, 1850 (additional source)
Stomphia coccinea (Müller, 1776) (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 mcpeaki Hauswaldt & Pearson, 1999 (additional source)
Urticina piscivora (Sebens & Laakso, 1978) (additional source)