Anaitides citrina (Malmgren, 1865) accepted as Phyllodoce citrina Malmgren, 1865 (basis of record)
Anaitides groenlandica (Örsted, 1842) accepted as Phyllodoce groenlandica Örsted, 1842 (basis of record)
Aphelochaeta multibranchiis [auct. lapsus] accepted as Aphelochaeta multibranchis (Grube, 1863) (basis of record)
Aponuphis Kucheruk, 1978 (additional source)
Aponuphis bilineata (Baird, 1870) (additional source)
Aricidea (Aricidea) albatrossae Pettibone, 1957 (additional source)
Boccardiella Blake & Kudenov, 1978 (additional source)
Boccardiella ligerica (Ferronnière, 1898) (additional source)
Chaetozone gibber Woodham & Chambers, 1994 (additional source)
Cnidaria (additional source)
Demonax branchyona [Auctt.] accepted as Demonax brachychona (Claparède, 1870) accepted as Parasabella saxicola (Grube, 1861) (additional source)
Echiurus Guérin-Méneville, 1831 (additional source)
Ehlersia ferrugina Langerhans, 1881 accepted as Paraehlersia ferrugina (Langerhans, 1881) (additional source)
Ehlersia garciai (Campoy, 1982) accepted as Syllis garciai (Campoy, 1982) (basis of record)
Ehlersia nepiotoca Caullery & Mesnil, 1916 (basis of record)
Eteone (Hypereteone) Bergström, 1914 accepted as Hypereteone Bergström, 1914 (source of synonymy)
Euclymene droebachiensis (Sars, 1872) (additional source)
Eulalia aurea Gravier, 1896 (additional source)
Eulalia microoculata Pleijel, 1987 (additional source)
Eulalia ornata Saint-Joseph, 1888 (additional source)
Eulalia splendens Saint-Joseph, 1888 accepted as Eumida punctifera (Grube, 1860) (basis of record)
Eulalia splendens Saint-Joseph, 1888 accepted as Eumida punctifera (Grube, 1860) (additional source)
Eulalia trilineata de Saint-Joseph, 1888 (basis of record)
Eulalia venusta de Saint Joseph, 1888 (additional source)
Galathowenia fragilis (Nilsen & Holthe, 1985) (additional source)
Gattyana amondseni (Malmgren, 1867) (additional source)
Glycera dayi O'Connor, 1987 accepted as Glycera celtica O'Connor, 1987 (additional source)
Glycera mimica Hartman, 1965 accepted as Glycera capitata Örsted, 1842 (additional source)
Glyphohesione klatti Friedrich, 1950 (additional source)
Harmothoe furcosetosa (Loshamn, 1981) accepted as Pettibonesia furcosetosa (Loshamn, 1981) (basis of record)
Harmothoe longisetis (Grube, 1863) (additional source)
Harmothoe longisetis Auctt. non Grube, 1863 accepted as Harmothoe glabra (Malmgren, 1865) (basis of record)
Harmothoe longisetis Auctt. non Grube, 1863 accepted as Harmothoe glabra (Malmgren, 1865) (source of synonymy)
Harmothoe marphysae McIntosh, 1876 accepted as Malmgrenia marphysae (McIntosh, 1876) (additional source)
Hesiospina Imajima & Hartman, 1964 (additional source)
Hesiospina similis (Hessle, 1925) accepted as Hesiospina aurantiaca (M. Sars, 1862) (additional source)
Hypereteone Bergström, 1914 (additional source)
Hypereteone foliosa (Quatrefages, 1865) (basis of record)
Jugaria quadrangularis (Stimpson, 1853) (additional source)
Maxmuelleria Bock, 1942 (additional source)
Melinna elisabethae McIntosh, 1885 (additional source)
Minuspio multibranchiata (Berkeley, 1927) accepted as Prionospio multibranchiata Berkeley, 1927 (basis of record)
Monticellina dorsobranchialis (Kirkegaard, 1959) accepted as Kirkegaardia dorsobranchialis (Kirkegaard, 1959) (additional source)
Nainereis [auctt. misspelling for Naineris] accepted as Naineris Blainville, 1828 (basis of record)
Parougia caeca (Webster & Benedict, 1884) (additional source)
Proclea grafii [auctt.] accepted as Proclea graffii (Langerhans, 1884) (additional source)
Scalibregma celticum Mackie, 1991 (additional source)
Sigalion squamosus Delle Chiaje, 1830 (additional source)
Sphaerosyllis taylori Perkins, 1981 (additional source)
Syllis (Ehlersia) Quatrefages, 1865 accepted as Syllis Lamarck, 1818 (basis of record)
Syllis (Ehlersia) cornuta Rathke, 1843 accepted as Syllis cornuta Rathke, 1843 (basis of record)
Syllis (Ehlersia) cornuta Rathke, 1843 accepted as Syllis cornuta Rathke, 1843 (source of synonymy)
Thalassema lankesteri Herdman, 1897 accepted as Maxmuelleria lankesteri (Herdman, 1897) (basis of record)
Tomopteris cavallii Rosa, 1908 (additional source)
Typosyllis brevipennis (Grube, 1863) accepted as Pseudosyllis brevipennis Grube, 1863 (basis of record)
Typosyllis vittata (Grube, 1840) accepted as Syllis vittata Grube, 1840 (basis of record)

 Authority

 for Ehlersia ferrugina Langerhans, 1881

(Lagerhans, 1881) [details]

 Authority

 for Harmothoe longisetis (Grube, 1863)

Grube, 1863 [details]

 Authority

 for Sphaerosyllis taylori Perkins, 1981

Perkins, 1980 [details]

 Synonymy

 for Harmothoe longisetis (Grube, 1863)

H. longisetis is a species distinct from H. glabra, and has a more southerly distribution. The name H. longisetis ... [details]

 Synonymy

 for Harmothoe longisetis Auctt. non Grube, 1863

Name has been misapplied by ao Hartmann-Schroder (1971) and Fauvel. [details]