Aglaophamus malmgreni (Théel, 1879) (redescription)
Alentia gelatinosa (M. Sars, 1835) (redescription)
Amaeana trilobata (Sars, 1863) (redescription)
Ampharete acutifrons (Grube, 1860) (redescription)
Ampharete falcata Eliason, 1955 (redescription)
Ampharete finmarchica (M. Sars, 1865) (redescription)
Ampharete octocirrata (Sars, 1835) (basis of record)
Amphicteis gunneri (M. Sars, 1835) (redescription)
Amphitrite cirrata Müller, 1776 (redescription)
Amythasides macroglossus Eliason, 1955 (redescription)
Anobothrus gracilis (Malmgren, 1866) (redescription)
Aonides oxycephala (Sars, 1862) (redescription)
Aonides paucibranchiata Southern, 1914 (redescription)
Aphrodita aculeata Linnaeus, 1758 (identification resource)
Apistobranchus tullbergi (Théel, 1879) (redescription)
Aricidea catherinae Laubier, 1967 represented as Aricidea (Acmira) catherinae Laubier, 1967 (redescription)
Asychis biceps (M. Sars, 1861) accepted as Chirimia biceps biceps (Sars, 1861) (redescription)
Brada villosa (Rathke, 1843) accepted as Bradabyssa villosa (Rathke, 1843) (redescription)
Ceratocephale loveni Malmgren, 1867 (redescription)
Chaetoparia nilssoni Malmgren, 1867 (redescription)
Cirrophorus branchiatus Ehlers, 1908 (redescription)
Clymenura borealis (Arwidsson, 1906) (redescription)
Diplocirrus glaucus (Malmgren, 1867) (redescription)
Ditrupa arietina (O. F. Müller, 1776) (redescription)
Drilonereis filum (Claparède, 1868) (redescription)
Eclysippe Eliason, 1955 (source of synonymy)
Eteone barbata (Malmgren, 1865) accepted as Mysta barbata Malmgren, 1865 (redescription)
Eteone flava (Fabricius, 1780) (redescription)
Eteone foliosa Quatrefages, 1866 accepted as Hypereteone foliosa (Quatrefages, 1865) (redescription)
Euclymene droebachiensis (Sars, 1872) (redescription)
Eulalia bilineata (Johnston, 1840) (redescription)
Eulalia mustela Pleijel, 1987 (redescription)
Eulalia viridis (Linnaeus, 1767) (redescription)
Eumida bahusiensis Bergstrom, 1914 (redescription)
Eumida sanguinea (Örsted, 1843) (redescription)
Eunereis longissima (Johnston, 1840) (redescription)
Eunice pennata (Müller, 1776) (redescription)
Eunoe nodosa (M. Sars, 1861) (redescription)
Eupolymnia nebulosa (Montagu, 1819) (redescription)
Euzonus flabelligerus [Auctt.] accepted as Thoracophelia flabellifera Ziegelmeier, 1955 (redescription)
Gattyana cirrhosa (Pallas, 1766) (redescription)
Glycera alba (O.F. Müller, 1776) (redescription)
Glycera lapidum Quatrefages, 1866 (redescription)
Glycera unicornis Lamarck, 1818 (redescription)
Glycinde nordmanni (Malmgren, 1866) (redescription)
Goniada maculata Örsted, 1843 (redescription)
Goniada norvegica Örsted, 1845 (redescription)
Harmothoe antilopes McIntosh, 1876 (redescription)
Harmothoe fragilis Moore, 1910 (redescription)
Hauchiella tribullata (McIntosh, 1869) (redescription)
Heteroclymene robusta Arwidsson, 1906 (redescription)
Hyalinoecia tubicola (O.F. Müller, 1776) (redescription)
Hydroides norvegica Gunnerus, 1768 (redescription)
Lanice conchilega (Pallas, 1766) (redescription)
Laonice cirrata (M. Sars, 1851) (redescription)
Laonice sarsi Söderström, 1920 (redescription)
Lepidonotus squamatus (Linnaeus, 1758) (redescription)
Levinsenia gracilis (Tauber, 1879) (redescription)
Lumbrineris fragilis (O.F. Müller, 1776) accepted as Scoletoma fragilis (O.F. Müller, 1776) (redescription)
Lumbrineris latreilli Audouin & Milne Edwards, 1833 (redescription)
Lumbrineris tetraura (Schmarda, 1861) accepted as Scoletoma tetraura (Schmarda, 1861) (taxonomy source)
Lysilla loveni Malmgren, 1866 (redescription)
Lysippe Malmgren, 1866 (taxonomy source)
Malacoceros fuliginosus (Claparède, 1868) (redescription)
Maldane sarsi Malmgren, 1865 (redescription)
Malmgrenia castanea McIntosh, 1876 (redescription)
Malmgrenia glabra (Malmgren, 1866) accepted as Harmothoe glabra (Malmgren, 1865) (redescription)
Malmgrenia ljungmani (Malmgren, 1867) (redescription)
Malmgrenia mcintoshi (Tebble & Chambers, 1982) (redescription)
Marphysa bellii (Audouin & Milne Edwards, 1833) accepted as Paucibranchia bellii (Audouin & Milne Edwards, 1833) (redescription)
Melinna cristata (M. Sars, 1851) (redescription)
Minuspio cirrifera (Wirén, 1883) accepted as Prionospio cirrifera Wirén, 1883 (redescription)
Mugga wahrbergi Eliason, 1955 accepted as Sosane wahrbergi (Eliason, 1955) (source of synonymy)
Neoamphitrite Hessle, 1917 (taxonomy source)
Nephtys caeca (Fabricius, 1780) (redescription)
Nephtys ciliata (Müller, 1788) (redescription)
Nephtys cirrosa Ehlers, 1868 (redescription)
Nephtys hombergii Savigny in Lamarck, 1818 (redescription)
Nephtys hystricis McIntosh, 1900 (redescription)
Nephtys incisa Malmgren, 1865 (redescription)
Nephtys longosetosa Örsted, 1842 (redescription)
Nephtys paradoxa Malm, 1874 (redescription)
Nereis zonata Malmgren, 1867 (redescription)
Nicomache lumbricalis (Fabricius, 1780) (redescription)
Notophyllum foliosum (Sars, 1835) (redescription)
Octobranchus floriceps Kingston & Mackie, 1980 (redescription)
Ophelina acuminata Örsted, 1843 (redescription)
Ophelina cylindricaudata (Hansen, 1879) (additional source)
Orbinia (Orbinia) sertulata (Savigny, 1822) represented as Orbinia sertulata (Savigny, 1822) (redescription)
Owenia fusiformis Delle Chiaje, 1844 (redescription)
Paramphitrite birulai (Ssolowiew, 1899) (redescription)
Paranaitis kosteriensis (Malmgren, 1867) (redescription)
Pectinaria belgica (Pallas, 1766) (redescription)
Petaloproctus tenuis (Théel, 1879) (redescription)
Pherusa plumosa (Müller, 1776) (redescription)
Phyllodoce groenlandica Örsted, 1842 (redescription)
Phyllodoce lineata (Claparède, 1870) (redescription)
Phyllodoce longipes Kinberg, 1866 (redescription)
Phyllodoce maculata (Linnaeus, 1767) (redescription)
Phyllodoce mucosa Örsted, 1843 (redescription)