Abietinaria pulchra (Nutting, 1904) (redescription)
Abietinaria thuiarioides (Clark, 1877) (redescription)
Acaulis primarius Stimpson, 1853 (additional source)
Acryptolaria conferta (Allman, 1877) (additional source)
Amphinema biscayana (Browne, 1907) (new combination reference)
Campanularia groenlandica Levinsen, 1893 (additional source)
Campanulina panicula G.O. Sars, 1874 accepted as Earleria panicula (G.O. Sars, 1874) (additional source)
Cladocarpus paraformosus Schuchert, 2000 (original description)
Cladocarpus paraventricosus Ramil & Vervoort, 1992 (additional source)
Cladocarpus pectiniferus Allman, 1883 accepted as Streptocaulus pectiniferus (Allman, 1883) (basis of record)
Diphasia margareta (Hassall, 1841) (additional source)
Eudendrium islandicum Schuchert, 2000 (original description)
Eutonina indicans (Romanes, 1876) (additional source)
Hydractinia borealis (Mayer, 1900) accepted as Podocoryna borealis (Mayer, 1900) (additional source)
Kirchenpaueria bonnevieae (Billard, 1906) (additional source)
Lovenella producta (G.O. Sars, 1874) accepted as Cyclocanna producta (G.O. Sars, 1874) (additional source)
Modeeria rotunda (Quoy & Gaimard, 1827) (additional source)
Nemertesia norvegica (Sars, 1873) (redescription)
Sertularia similis Clark, 1877 (additional source)
Stegopoma plicatile (Sars, 1863) accepted as Ptychogena crocea Kramp & Damas, 1925 (additional source)
Stephalia corona Haeckel, 1888 (additional source)
Zygophylax brownei Billard, 1924 (additional source)