Alitta virens (M. Sars, 1835) (redescription)
Ampharete acutifrons (Grube, 1860) (redescription)
Aonides oxycephala (Sars, 1862) (redescription)
Aonides paucibranchiata Southern, 1914 (redescription)
Aphrodita aculeata Linnaeus, 1758 (identification resource)
Arenicola marina (Linnaeus, 1758) (redescription)
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)
Eulalia bilineata (Johnston, 1840) (redescription)
Eulalia viridis (Linnaeus, 1767) (redescription)
Eumida sanguinea (Örsted, 1843) (redescription)
Eunereis longissima (Johnston, 1840) (redescription)
Euphrosine armadillo M. Sars, 1851 (redescription)
Euzonus flabelligerus [Auctt.] accepted as Thoracophelia flabellifera Ziegelmeier, 1955 (redescription)
Gattyana cirrhosa (Pallas, 1766) (redescription)
Glycera alba (O.F. Müller, 1776) (redescription)
Glycera capitata Örsted, 1842 (redescription)
Glycera lapidum Quatrefages, 1866 (redescription)
Glycera unicornis Lamarck, 1818 (redescription)
Glycinde nordmanni (Malmgren, 1866) (redescription)
Goniada maculata Örsted, 1843 (redescription)
Harmothoe extenuata (Grube, 1840) (redescription)
Hediste diversicolor (O.F. Müller, 1776) (redescription)
Hydroides norvegica Gunnerus, 1768 (redescription)
Lanice conchilega (Pallas, 1766) (redescription)
Lepidonotus squamatus (Linnaeus, 1758) (redescription)
Lumbrineris fragilis (O.F. Müller, 1776) accepted as Scoletoma fragilis (O.F. Müller, 1776) (redescription)
Lumbrineris latreilli Audouin & Milne Edwards, 1833 (redescription)
Lysilla loveni Malmgren, 1866 (redescription)
Malacoceros fuliginosus (Claparède, 1868) (redescription)
Malmgrenia arenicolae (Saint-Joseph, 1888) (redescription)
Malmgrenia castanea McIntosh, 1876 (redescription)
Manayunkia aestuarina (Bourne, 1883) (redescription)
Nephtys assimilis Örsted, 1843 (redescription)
Nephtys caeca (Fabricius, 1780) (redescription)
Nephtys cirrosa Ehlers, 1868 (redescription)
Nephtys hombergii Savigny in Lamarck, 1818 (redescription)
Nephtys kersivalensis McIntosh, 1908 (redescription)
Nephtys longosetosa Örsted, 1842 (redescription)
Nereis pelagica Linnaeus, 1758 (redescription)
Ophelia limacina (Rathke, 1843) (redescription)
Owenia fusiformis Delle Chiaje, 1844 (redescription)
Pholoe inornata Johnston, 1839 (redescription)
Pholoe pallida Chambers, 1985 (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)
Phyllodoce rosea (McIntosh, 1877) (redescription)
Poecilochaetus serpens Allen, 1904 (redescription)
Polychaeta (identification resource)
Pomatoceros triqueter (Linnaeus, 1758) accepted as Spirobranchus triqueter (Linnaeus, 1758) (redescription)
Pygospio elegans Claparède, 1863 (redescription)
Scoloplos armiger (Müller, 1776) (redescription)
Spio filicornis (Müller, 1776) (redescription)
Spio goniocephala Thulin, 1957 (redescription)
Spiophanes bombyx (Claparède, 1870) (redescription)
Sthenelais boa (Johnston, 1833) (redescription)
Sthenelais limicola (Ehlers, 1864) (redescription)
Thelepini (additional source)
Thelepus cincinnatus (Fabricius, 1780) (redescription)
Tomopteris helgolandica Greeff, 1879 represented as Tomopteris (Johnstonella) helgolandica (Greeff, 1879) (redescription)
Travisia forbesii Johnston, 1840 (redescription)