Aglaophamus circinata (Verrill in Smith & Harger, 1874) (additional source)
Apistobranchus tullbergi (Théel, 1879) (additional source)
Arabella iricolor (Montagu, 1804) (additional source)
Aricidea suecica Eliason, 1920 represented as Aricidea (Strelzovia) suecica Eliason, 1920 (additional source)
Austrolaenilla mollis (Sars, 1872) (additional source)
Drilonereis magna Webster & Benedict, 1887 (additional source)
Eteone flava (Fabricius, 1780) (additional source)
Eteone longa (Fabricius, 1780) (additional source)
Eulalia bilineata (Johnston, 1840) (additional source)
Eulalia viridis (Linnaeus, 1767) (additional source)
Eumida sanguinea (Örsted, 1843) (additional source)
Eunice pennata (Müller, 1776) (additional source)
Euphrosine borealis Örsted, 1843 (additional source)
Eusyllis blomstrandi Malmgren, 1867 (additional source)
Exogone (Exogone) dispar (Webster, 1879) accepted as Exogone dispar (Webster, 1879) (additional source)
Exogone (Exogone) verugera (Claparède, 1868) accepted as Exogone verugera (Claparède, 1868) (additional source)
Exogone (Parexogone) hebes (Webster & Benedict, 1884) accepted as Parexogone hebes (Webster & Benedict, 1884) (additional source)
Glycera capitata Örsted, 1842 (additional source)
Glycera robusta Ehlers, 1868 (additional source)
Goniada maculata Örsted, 1843 (additional source)
Goniada norvegica Örsted, 1845 (additional source)
Gyptis vittata Webster & Benedict, 1887 (basis of record)
Levinsenia gracilis (Tauber, 1879) (additional source)
Lumbrinerides acuta (Verrill, 1875) (additional source)
Lumbrineris fragilis (O.F. Müller, 1776) accepted as Scoletoma fragilis (O.F. Müller, 1776) (additional source)
Lumbrineris impatiens Claparède, 1868 accepted as Scoletoma laurentiana (Grube, 1863) (additional source)
Lumbrineris latreilli Audouin & Milne Edwards, 1833 (additional source)
Mystides borealis Théel, 1879 (additional source)
Neanthes succinea (Leuckart, 1847) accepted as Alitta succinea (Leuckart, 1847) (additional source)
Neoleanira tetragona (Örsted, 1845) (additional source)
Nephtys incisa Malmgren, 1865 (additional source)
Nephtys longosetosa Örsted, 1842 (additional source)
Nephtys paradoxa Malm, 1874 (additional source)
Nephtys picta Ehlers, 1868 (basis of record)
Nereimyra punctata (Müller, 1788) (additional source)
Nereis zonata Malmgren, 1867 (additional source)
Ninoe nigripes Verrill, 1873 (additional source)
Onuphis quadricuspis M. Sars in G.O. Sars, 1872 accepted as Paradiopatra quadricuspis (M. Sars in G.O. Sars, 1872) (additional source)
Paraonis lyra Southern, 1914 represented as Paradoneis lyra (Southern, 1914) (additional source)
Parougia caeca (Webster & Benedict, 1884) (additional source)
Pholoe minuta (Fabricius, 1780) (additional source)
Scoloplos acutus (Verrill, 1873) accepted as Leitoscoloplos acutus (Verrill, 1873) (basis of record)
Scoloplos armiger (Müller, 1776) (additional source)
Sphaerosyllis erinaceus Claparède, 1863 accepted as Erinaceusyllis erinaceus (Claparède, 1863) (additional source)
Sthenelais limicola (Ehlers, 1864) (additional source)
Syllis cornuta Rathke, 1843 (additional source)
Tomopteris helgolandica Greeff, 1879 represented as Tomopteris (Johnstonella) helgolandica (Greeff, 1879) (additional source)
Travisiopsis levinseni Southern, 1910 (additional source)
Trochochaeta multisetosa (Örsted, 1844) (additional source)
Trochochaeta watsoni (Fauvel, 1916) (additional source)