Anaitides maculata (Linnaeus, 1767) accepted as Phyllodoce maculata (Linnaeus, 1767) (basis of record)
Artacama proboscidea Malmgren, 1866 (additional source)
Calamyzinae Hartmann-Schröder, 1971 (original description)
Clymenura borealis (Arwidsson, 1906) (additional source)
Errantia (additional source)
Eteone flava (Fabricius, 1780) (additional source)
Eteone lactea Claparède, 1868 accepted as Hypereteone lactea (Claparède, 1868) (basis of record)
Exogone (Exogone) dispar (Webster, 1879) accepted as Exogone dispar (Webster, 1879) (additional source)
Hesioninae Grube, 1850 (status source)
Lanassa venusta (Malm, 1874) (additional source)
Macellicephalinae Hartmann-Schröder, 1971 (original description)
Microphthalmidae Hartmann-Schröder, 1971 (original description)
Nereis elitoralis Eliason, 1962 accepted as Eunereis elitoralis (Eliason, 1962) (source of synonymy)
Onuphis quadricuspis M. Sars in G.O. Sars, 1872 accepted as Paradiopatra quadricuspis (M. Sars in G.O. Sars, 1872) (source of synonymy)
Opheliidae Malmgren, 1867 (taxonomy source)
Ophelininae Hartmann-Schröder, 1971 (original description)
Paradoneis armata Glémarec, 1966 (additional source)
Paraonis gracilis (Tauber, 1879) accepted as Levinsenia gracilis (Tauber, 1879) (basis of record)
Parophryotrocha Hartmann-Schröder, 1971 (original description)
Pirakia Bergström, 1914 accepted as Eumida Malmgren, 1865 (additional source)
Polydora caeca (Örsted, 1843) accepted as Dipolydora coeca (Örsted, 1843) (additional source)
Raphidrilinae Hartmann-Schröder, 1971 (original description)
Scionella lornensis Pearson, 1969 accepted as Pista lornensis (Pearson, 1969) (additional source)
Sedentaria (additional source)
Travisiidae Hartmann-Schröder, 1971 (original description)

Belte for Aphrodita aculeata Linnaeus, 1758  (doubtful)
Kattegat for Aphrodita aculeata Linnaeus, 1758  (doubtful)
North Sea for Aphrodita aculeata Linnaeus, 1758  (doubtful)
Öresund for Aphrodita aculeata Linnaeus, 1758  (doubtful)
Skagerrak for Aphrodita aculeata Linnaeus, 1758 

 Classification

 for Opheliidae Malmgren, 1867

See Travisiidae for Travisia species, and comments on their transfer out of a former position in Opheliidae to ... [details]

 Diagnosis

 for Macellicephalinae Hartmann-Schröder, 1971

Original diagnosis: "Eine unpaare Antenne oder auch diese fehlend; keine latteralen Antennen. Vordere ... [details]

 Homonymy

 for Wilsoniella Pettibone, 1993

Wilsoniella Pettibone, 1993 is preoccupied by Wilsoniella Khalfin, 1939, a genus within the Rhynchonellida ... [details]

 Publication date

 for Sosane gracilis (Malmgren, 1866)

(Malmgren, 1865) [details]

 Spelling

 for Gyptis brevipalapa [auct. lapsus]

careless checklist misspelling of no significance [details]

 Spelling

 for Proclea grafii [auctt.]

P. graffii [details]

 Synonymy

 for Lumbriconereis impatiens Claparède, 1868

Syn. To Lumbrineris tetraura (Schmarda, 1861) by Hartmann-Schröder but needed confirmation - possibly ... [details]

 Validity

 for Ophelina norvegica Støp-Bowitz, 1945

Valid as Orbinia (Phylo) norvegica (M. Sars, 1872) [details]