Ammotrypane breviata Ehlers, 1913 accepted as Ophelina breviata (Ehlers, 1913) (additional source)
Autolytus prismaticus (O.F. Müller, 1776) accepted as Proceraea prismatica (O.F. Müller, 1776) (additional source)
Autolytus trilineatus Berkeley & Berkeley, 1945 accepted as Proceraea prismatica (O.F. Müller, 1776) (source of synonymy)
Brada inhabilis (Rathke, 1843) (additional source)
Brada pilosa Moore, 1906 accepted as Bradabyssa pilosa (Moore, 1906) (source of synonymy)
Brada setosa Verrill, 1873 accepted as Bradabyssa setosa (Verrill, 1873) (source of synonymy)
Brada sublaevis Stimpson, 1853 (source of synonymy)
Brada villosa (Rathke, 1843) accepted as Bradabyssa villosa (Rathke, 1843) (source of synonymy)
Eumida minuta (Ditlevsen, 1917) accepted as Eumida arctica (Annenkova, 1946) (new combination reference)
Eunoe nodosa (M. Sars, 1861) (additional source)
Eusyllis magnifica (Moore, 1906) accepted as Pionosyllis magnifica Moore, 1906 (new combination reference)
Lanassa venusta (Malm, 1874) (additional source)
Melaenis loveni Malmgren, 1865 (additional source)
Melaenis loveni gigantea Wirén, 1883 accepted as Melaenis loveni Malmgren, 1865 (source of synonymy)
Nephtys paradoxa Malm, 1874 (source of synonymy)
Pista groenlandica Treadwell, 1937 accepted as Pista maculata (Dalyell, 1853) (source of synonymy)
Pista maculata (Dalyell, 1853) (taxonomy source)
Polydora brachycephala Hartman, 1936 accepted as Dipolydora caulleryi (Mesnil, 1897) (source of synonymy)
Polydora caulleryi Mesnil, 1897 accepted as Dipolydora caulleryi (Mesnil, 1897) (additional source)
Potamilla acuminata Moore & Bush, 1904 accepted as Perkinsiana acuminata (Moore & Bush, 1904) (source of synonymy)
Potamilla neglecta (Sars, 1851) (additional source)
Prionospio tenuis (Verrill, 1880) accepted as Prionospio steenstrupi Malmgren, 1867 (source of synonymy)
Spirorbis spirillum ascendens Levinsen, 1884 (additional source)
Sternaspis buzhinskajae Salazar-Vallejo, 2014 (additional source)
Syllis (Ehlersia) cornuta Rathke, 1843 accepted as Syllis cornuta Rathke, 1843 (source of synonymy)
Terebellides stroemii Sars, 1835 (source of synonymy)
Thelepus cincinnatus (Fabricius, 1780) (source of synonymy)

 Distribution

 for Pista maculata Marenzeller, 1884

It is likely the usages of this name have been confused with Pista maculata (Dalyell, 1853) [details]

 Synonymy

 for Eunoe oerstedi Malmgren, 1865

Pettibone (1954: 218) regarded her concept of E. oerstedi as separate from E. nodosa. She wrote: "Eunoe nodosa has ... [details]

 Taxonomy

 for Chaetosyllis oerstedi Malmgren, 1867

Current taxon was considered as a junior synonym of Syllis cornuta Rathke, 1843 by Carus (1885: 228), Soulier ... [details]

 Taxonomy

 for Eunoe barbata Moore, 1910

Pettibone 1954 included Eunoe barbata in Eunoe oerstedi. However Jirkov 2001 describes both and treats E. barbata ... [details]