Aglaophamus malmgreni (Théel, 1879) (redescription)
Alkmaria romijni Horst, 1919 (source of synonymy)
Ampharete acutifrons (Grube, 1860) (redescription)
Amphicteis gunneri (M. Sars, 1835) (redescription)
Aonides oxycephala (Sars, 1862) (redescription)
Aonides paucibranchiata Southern, 1914 (redescription)
Arenicola marina (Linnaeus, 1758) (redescription)
Brada villosa (Rathke, 1843) accepted as Bradabyssa villosa (Rathke, 1843) (redescription)
Ditrupa arietina (O. F. Müller, 1776) (redescription)
Drilonereis filum (Claparède, 1868) (redescription)
Eclysippe Eliason, 1955 (source of synonymy)
Eulalia viridis (Linnaeus, 1767) (redescription)
Eumida sanguinea (Örsted, 1843) (redescription)
Eunice norvegica (Linnaeus, 1767) (redescription)
Eunice pennata (Müller, 1776) (redescription)
Eupolymnia nebulosa (Montagu, 1819) (redescription)
Fabricia stellaris (Müller, 1774) (redescription)
Filograna implexa Berkeley, 1835 (redescription)
Flabelligera affinis M. Sars, 1829 (redescription)
Glycera alba (O.F. Müller, 1776) (redescription)
Glycera capitata Örsted, 1842 (redescription)
Glycera lapidum Quatrefages, 1866 (redescription)
Glycera unicornis Lamarck, 1818 (redescription)
Glycerella magellanica (McIntosh, 1885) (redescription)
Glycinde nordmanni (Malmgren, 1866) (redescription)
Goniada maculata Örsted, 1843 (redescription)
Harmothoe antilopes McIntosh, 1876 (redescription)
Harmothoe imbricata (Linnaeus, 1767) (redescription)
Hediste diversicolor (O.F. Müller, 1776) (redescription)
Hyalinoecia bilineata Baird, 1870 accepted as Aponuphis bilineata (Baird, 1870) (redescription)
Hyalinoecia tubicola (O.F. Müller, 1776) (redescription)
Hydroides norvegica Gunnerus, 1768 (redescription)
Janua pagenstecheri (Quatrefages, 1866) accepted as Janua heterostropha (Montagu, 1803) (redescription)
Lanice conchilega (Pallas, 1766) (redescription)
Laonice cirrata (M. Sars, 1851) (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)
Lysippe Malmgren, 1866 (taxonomy source)
Lysippe vanelli Fauvel, 1936 accepted as Eclysippe vanelli (Fauvel, 1936) (source of synonymy)
Maldane sarsi Malmgren, 1865 (redescription)
Marphysa bellii (Audouin & Milne Edwards, 1833) accepted as Paucibranchia bellii (Audouin & Milne Edwards, 1833) (redescription)
Melinna cristata (M. Sars, 1851) (redescription)
Myxicola infundibulum (Montagu, 1808) (redescription)
Neoamphitrite Hessle, 1917 (taxonomy source)
Nephtys hombergii Savigny in Lamarck, 1818 (redescription)
Nephtys incisa Malmgren, 1865 (redescription)
Nereis pelagica Linnaeus, 1758 (redescription)
Nereis zonata Malmgren, 1867 (redescription)
Nicolea venustula (Montagu, 1819) (redescription)
Nicomache lumbricalis (Fabricius, 1780) (redescription)
Nothria africana (Augener, 1918) (redescription)
Ophelina acuminata Örsted, 1843 (redescription)
Owenia fusiformis Delle Chiaje, 1844 (redescription)
Paradiopatra quadricuspis (M. Sars in G.O. Sars, 1872) (redescription)
Pectinaria belgica (Pallas, 1766) (redescription)
Pelagobia longicirrata Greeff, 1879 (redescription)
Phyllodoce longipes Kinberg, 1866 (redescription)
Phyllodoce mucosa Örsted, 1843 (redescription)
Pista Malmgren, 1866 (additional source)
Pista cristata (Müller, 1776) (redescription)
Pista mirabilis McIntosh, 1885 (redescription)
Platynereis dumerilii (Audouin & Milne Edwards, 1833) (redescription)
Poecilochaetus serpens Allen, 1904 (redescription)
Polychaeta (identification resource)
Polycirrus aurantiacus Grube, 1860 (redescription)
Polycirrus plumosus (Wollebaek, 1912) (redescription)
Polynoe scolopendrina Savigny, 1822 (redescription)
Potamilla neglecta (Sars, 1851) (redescription)
Praxillella affinis (M. Sars in G.O. Sars, 1872) (redescription)
Praxillella gracilis (M. Sars, 1861) (redescription)
Praxillella praetermissa (Malmgren, 1865) (redescription)
Prionospio dubia Day, 1961 (redescription)
Prionospio steenstrupi Malmgren, 1867 (taxonomy source)
Protula tubularia (Montagu, 1803) (redescription)
Pseudopotamilla reniformis (Bruguière, 1789) (redescription)
Pterolysippe Augener, 1918 accepted as Lysippe Malmgren, 1866 (basis of record)
Pterolysippe vanelli (Fauvel, 1936) accepted as Eclysippe vanelli (Fauvel, 1936) (new combination reference)
Rhodine gracilior Tauber, 1879 (redescription)
Scalibregma inflatum Rathke, 1843 (redescription)
Scoloplos armiger (Müller, 1776) (redescription)
Serpula vermicularis Linnaeus, 1767 (redescription)
Spio filicornis (Müller, 1776) (redescription)
Spiochaetopterus typicus M Sars, 1856 (redescription)
Spiophanes bombyx (Claparède, 1870) (redescription)
Sternaspis scutata (Ranzani, 1817) (redescription)
Sthenelais boa (Johnston, 1833) (redescription)
Terebellides stroemi [auctt. misspelling] accepted as Terebellides stroemii Sars, 1835 (redescription)
Thelepini (additional source)
Tomopteris septentrionalis Steenstrup, 1849 (redescription)
Travisiopsis lanceolata Southern, 1910 (redescription)
Typhloscolex muelleri Busch, 1851 (redescription)
Vanadis formosa Claparède, 1870 (redescription)