Aglaophamus malmgreni (Théel, 1879) (additional source)
Ampharete acutifrons (Grube, 1860) (additional source)
Ampharete baltica Eliason, 1955 (additional source)
Ampharete falcata Eliason, 1955 (additional source)
Ampharetinae Malmgren, 1866 (basis of record)
Amphicteis sundevalli Malmgren, 1866 (additional source)
Amphictene auricoma (O.F. Müller, 1776) (basis of record)
Amphictene auricoma (O.F. Müller, 1776) (source of synonymy)
Anaitides Czerniavsky, 1882 accepted as Phyllodoce Lamarck, 1818 (source of synonymy)
Anobothrus gracilis (Malmgren, 1866) (additional source)
Aonides paucibranchiata Southern, 1914 (additional source)
Apistobranchus tullbergi (Théel, 1879) (additional source)
Aricidea catherinae Laubier, 1967 represented as Aricidea (Acmira) catherinae Laubier, 1967 (additional source)
Axionice maculata (Dalyell, 1853) accepted as Pista maculata (Dalyell, 1853) (additional source)
Brada villosa (Rathke, 1843) accepted as Bradabyssa villosa (Rathke, 1843) (additional source)
Capitomastus minimus (Langerhans, 1880) accepted as Capitella minima Langerhans, 1880 (additional source)
Cirratulus cirratus (O. F. Müller, 1776) (additional source)
Cossura longocirrata Webster & Benedict, 1887 (additional source)
Diplocirrus glaucus (Malmgren, 1867) (additional source)
Eclysippe vanelli (Fauvel, 1936) (additional source)
Eteone Savigny, 1822 (additional source)
Eteone (Mysta) Malmgren, 1865 (basis of record)
Eteone (Mysta) barbata (Malmgren, 1865) accepted as Eteone barbata (Malmgren, 1865) accepted as Mysta barbata Malmgren, 1865 (additional source)
Eteone flava (Fabricius, 1780) (additional source)
Eteone longa (Fabricius, 1780) (additional source)
Eteone spetsbergensis Malmgren, 1865 (additional source)
Eteoninae Bergström, 1914 (basis of record)
Euchone analis (Krøyer, 1856) (additional source)
Eucranta villosa Malmgren, 1865 (additional source)
Eulalia Savigny, 1822 (additional source)
Eulalia bilineata (Johnston, 1840) (additional source)
Eumida Malmgren, 1865 (additional source)
Eumida bahusiensis Bergstrom, 1914 (additional source)
Eunice pennata (Müller, 1776) (additional source)
Eupolymnia nebulosa (Montagu, 1819) (additional source)
Eupolymnia nesidensis (Delle Chiaje, 1828) (additional source)
Galathowenia oculata (Zachs, 1923) (additional source)
Gattyana cirrosa (Pallas, 1766) accepted as Gattyana cirrhosa (Pallas, 1766) (basis of record)
Glycera alba (O.F. Müller, 1776) (additional source)
Glycera lapidum Quatrefages, 1866 (additional source)
Goniada norvegica Örsted, 1845 (additional source)
Harmothoe (Antinoella) Augener, 1928 accepted as Bylgides Chamberlin, 1919 (additional source)
Harmothoe (Antinoella) sarsi (Kinberg in Malmgren, 1866) accepted as Bylgides sarsi (Kinberg in Malmgren, 1866) (basis of record)
Harmothoe (Antinoella) sarsi sarsi (Kinberg, 1865) (basis of record)
Harmothoe borealis (Théel, 1879) (additional source)
Harmothoe fragilis Moore, 1910 (additional source)
Harmothoe imbricata (Linnaeus, 1767) (additional source)
Harmothoe impar (Johnston, 1839) (additional source)
Harmothoe nodosa (M. Sars, 1861) accepted as Eunoe nodosa (M. Sars, 1861) (additional source)
Hediste Malmgren, 1867 (additional source)
Hediste diversicolor (O.F. Müller, 1776) (additional source)
Hyalinoecia tubicola (O.F. Müller, 1776) (additional source)
Kefersteinia cirrhata (Keferstein, 1862) accepted as Psamathe fusca Johnston, 1836 (additional source)
Lagis Malmgren, 1866 (source of synonymy)
Lagis koreni Malmgren, 1866 (source of synonymy)
Laonice cirrata (M. Sars, 1851) (additional source)
Laonice sarsi Söderström, 1920 (additional source)
Lepidonotus squamatus (Linnaeus, 1758) (additional source)
Levinsenia gracilis (Tauber, 1879) (additional source)
Lumbrineris fragilis (O.F. Müller, 1776) accepted as Scoletoma fragilis (O.F. Müller, 1776) (basis of record)
Lumbrineris tetraura (Schmarda, 1861) accepted as Scoletoma tetraura (Schmarda, 1861) (basis of record)
Macrochaeta polyonyx Eliason, 1962 accepted as Actaedrilus polyonyx (Eliason, 1962) (additional source)
Malacoceros fuliginosus (Claparède, 1868) (additional source)
Malacoceros vulgaris (Johnston, 1827) (additional source)
Maldane sarsi Malmgren, 1865 (additional source)
Melinna cristata (M. Sars, 1851) (additional source)
Melinnidae Chamberlin, 1919 (additional source)
Mysta Malmgren, 1865 (additional source)
Mysta barbata Malmgren, 1865 (additional source)
Mystides Théel, 1879 (additional source)
Mystides southerni (Banse, 1954) (additional source)
Neoamphitrite affinis (Malmgren, 1866) (additional source)
Neoamphitrite figulus (Dalyell, 1853) (additional source)
Neoamphitrite grayi (Malmgren, 1866) (additional source)
Neoamphitrite groenlandica (Malmgren, 1866) (additional source)
Nephtys caeca (Fabricius, 1780) (additional source)
Nephtys ciliata (Müller, 1788) (additional source)
Nephtys longosetosa Örsted, 1842 (additional source)
Nephtys paradoxa Malm, 1874 (additional source)
Nephtys pente Rainer, 1984 (additional source)
Nereimyra punctata (Müller, 1788) (additional source)
Nereis pelagica Linnaeus, 1758 (additional source)
Nereis zonata Malmgren, 1867 (additional source)
Nicomache lumbricalis (Fabricius, 1780) (additional source)
Nothria conchylega (Sars, 1835) (additional source)
Notophyllum Örsted, 1843 (additional source)
Notophyllum foliosum (Sars, 1835) (additional source)
Ophelia limacina (Rathke, 1843) (additional source)
Ophelina cylindricaudata (Hansen, 1879) (additional source)
Orbinia sertulata (Savigny, 1822) (additional source)
Orbiniinae Hartman, 1942 (basis of record)
Paradoneis eliasoni Mackie, 1991 (additional source)
Paramphitrite Holthe, 1976 (additional source)
Paramphitrite tetrabranchia Holthe, 1976 accepted as Paramphitrite birulai (Ssolowiew, 1899) (additional source)
Paranaitis Southern, 1914 (additional source)
Paranaitis wahlbergi (Malmgren, 1865) (additional source)
Paraonis gracilis (Tauber, 1879) accepted as Levinsenia gracilis (Tauber, 1879) (source of synonymy)
Pectinaria (Amphictene) Savigny, 1822 accepted as Amphictene Savigny, 1822 (basis of record)
Pectinaria (Amphictene) auricoma (O.F. Müller, 1776) represented as Amphictene auricoma (O.F. Müller, 1776) (additional source)
Pectinaria (Cistenides) Malmgren, 1866 accepted as Cistenides Malmgren, 1866 (basis of record)