Actinia obtruncata Stimpson, 1853 (basis of record)
Actinostola callosa (Verrill, 1882) (additional source)
Alcyonium digitatum Linnaeus, 1758 (additional source)
Ascidia callosa Stimpson, 1852 (additional source)
Atolla wyvillei Haeckel, 1880 (additional source)
Aulactinia stella (Verrill, 1864) (additional source)
Aurelia aurita (Linnaeus, 1758) (additional source)
Bolinopsis infundibulum (O.F. Müller, 1776) (additional source)
Boltenia echinata (Linnaeus, 1767) (additional source)
Boltenia ovifera (Linnaeus, 1767) (additional source)
Bostrichobranchus pilularis (Verrill, 1871) (basis of record)
Botryllus schlosseri (Pallas, 1766) (additional source)
Calliobdella van Beneden & Hesse, 1863 (additional source)
Calliobdella nodulifera (Malm, 1863) (additional source)
Chelyosoma macleayanum Broderip & Sowerby, 1830 (additional source)
Ciona intestinalis (Linnaeus, 1767) (additional source)
Cnemidocarpa mollis (Stimpson, 1852) (additional source)
Craterolophus convolvulus (Johnston, 1835) (additional source)
Cyanea capillata (Linnaeus, 1758) (additional source)
Dendrodoa carnea (Agassiz, 1850) (additional source)
Diadumene leucolena (Verrill, 1866) (basis of record)
Didemnum albidum (Verrill, 1871) (additional source)
Distaplia clavata (Sars, 1851) (additional source)
Drifa glomerata (Verrill, 1869) (additional source)
Edwardsia elegans Verrill, 1869 (additional source)
Edwardsia sipunculoides (Stimpson, 1853) (additional source)
Epizoanthus incrustatus Düben & Koren, 1847 accepted as Epizoanthus papillosus Johnston, 1842 (additional source)
Eudendrium tenellum Allman, 1877 (additional source)
Gonactinia prolifera (Sars, 1835) (additional source)
Halcampa duodecimcirrata (Sars, 1851) (additional source)
Haliclystus auricula James-Clark, 1863 (additional source)
Haliclystus salpinx James-Clark, 1863 (additional source)
Halimocyathus platypus James-Clark, 1863 (basis of record)
Haliplanella lineata (Verrill, 1869) accepted as Diadumene lineata (Verrill, 1869) (additional source)
Haloclava producta (Stimpson, 1856) (basis of record)
Halocynthia pyriformis (Rathke, 1806) (additional source)
Lafoea gracillima (Alder, 1856) accepted as Lafoea dumosa (Fleming, 1820) (additional source)
Lucernaria quadricornis O. F. Müller, 1776 (additional source)
Mertensia ovum (Fabricius, 1780) (additional source)
Mesacmaea laevis (Verrill, 1864) (basis of record)
Metridium senile (Linnaeus, 1761) (additional source)
Molgula citrina Alder & Hancock, 1848 (additional source)
Molgula complanata Alder & Hancock, 1870 (additional source)
Molgula provisionalis Van Name, 1945 (basis of record)
Molgula retortiformis Verrill, 1871 (additional source)
Nematostella vectensis Stephenson, 1935 (additional source)
Nephasoma (Nephasoma) eremita (Sars, 1851) (additional source)
Peachia parasitica (Agassiz, 1861) (additional source)
Periphylla periphylla (Péron & Lesueur, 1810) (additional source)
Phacellophora camtschatica Brandt, 1835 (additional source)
Pleurobrachia pileus (O. F. Müller, 1776) (additional source)
Polycarpa fibrosa (Stimpson, 1852) (additional source)
Polydora ciliata (Johnston, 1838) (additional source)
Stomphia carneola (Stimpson, 1853) accepted as Stomphia coccinea (Müller, 1776) (basis of record)
Stomphia coccinea (Müller, 1776) (additional source)
Thalassema viride Verrill, 1879 (basis of record)
Urticina felina (Linnaeus, 1761) (additional source)