Ampharetinae Malmgren, 1866 (basis of record)
Anaitides Czerniavsky, 1882 accepted as Phyllodoce Lamarck, 1818 (source of synonymy)
Anaitides longipes (Kinberg, 1866) accepted as Phyllodoce longipes Kinberg, 1866 (basis of record)
Anaitides longipes (Kinberg, 1866) accepted as Phyllodoce longipes Kinberg, 1866 (source of synonymy)
Aricidea suecica Eliason, 1920 represented as Aricidea (Strelzovia) suecica Eliason, 1920 (additional source)
Brada villosa (Rathke, 1843) accepted as Bradabyssa villosa (Rathke, 1843) (additional source)
Cirratulus cirratus (O. F. Müller, 1776) (additional source)
Eteone Savigny, 1822 (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)
Eumida Malmgren, 1865 (additional source)
Eunice pennata (Müller, 1776) (additional source)
Harmothoe (Eunoe) Malmgren, 1866 accepted as Eunoe Malmgren, 1865 (basis of record)
Harmothoe (Harmothoe) Kinberg, 1856 accepted as Harmothoe Kinberg, 1856 (basis of record)
Harmothoe imbricata (Linnaeus, 1767) (additional source)
Harmothoe impar (Johnston, 1839) (additional source)
Hauchiella tribullata (McIntosh, 1869) (basis of record)
Hyalinoecia tubicola (O.F. Müller, 1776) (additional source)
Kefersteinia cirrhata (Keferstein, 1862) accepted as Psamathe cirrhata Keferstein, 1862 (additional source)
Langerhansia cornuta (Rathke, 1843) accepted as Syllis cornuta Rathke, 1843 (additional source)
Laonice cirrata (M. Sars, 1851) (additional source)
Levinsenia gracilis (Tauber, 1879) (additional source)
Lumbrineris tetraura (Schmarda, 1861) accepted as Scoletoma tetraura (Schmarda, 1861) (basis of record)
Maldane sarsi Malmgren, 1865 (additional source)
Melinna cristata (M. Sars, 1851) (additional source)
Melinnidae Chamberlin, 1919 (additional source)
Mystides Théel, 1879 (additional source)
Mystides limbata Saint-Joseph, 1888 accepted as Pseudomystides limbata (Saint-Joseph, 1888) (basis of record)
Mystides limbata Saint-Joseph, 1888 accepted as Pseudomystides limbata (Saint-Joseph, 1888) (source of synonymy)
Neoamphitrite affinis (Malmgren, 1866) (additional source)
Nereiphylla Blainville, 1828 (additional source)
Nereis (Nereis) Linnaeus, 1758 accepted as Nereis Linnaeus, 1758 (basis of record)
Nereis pelagica Linnaeus, 1758 (additional source)
Nicomache lumbricalis (Fabricius, 1780) (additional source)
Notophyllum Örsted, 1843 (additional source)
Ophelina cylindricaudata (Hansen, 1879) (additional source)
Orbinia (Phylo) Kinberg, 1866 accepted as Phylo Kinberg, 1866 (basis of record)
Orbiniinae Hartman, 1942 (basis of record)
Paranaitis Southern, 1914 (additional source)
Paraonis gracilis (Tauber, 1879) accepted as Levinsenia gracilis (Tauber, 1879) (source of synonymy)
Phyllodoce Lamarck, 1818 (additional source)
Phyllodoce (Anaitides) Czerniavsky, 1882 accepted as Phyllodoce Lamarck, 1818 (basis of record)
Phyllodocinae Örsted, 1843 (basis of record)
Phylo kupfferi (Ehlers, 1874) (additional source)
Pista cristata (Müller, 1776) (additional source)
Polychaeta (identification resource)
Polydora ciliata (Johnston, 1838) (additional source)
Praxillella praetermissa (Malmgren, 1865) (additional source)
Prionospio (Prionospio) [auctorum] accepted as Prionospio Malmgren, 1867 (basis of record)
Protomystides Czerniavsky, 1882 (additional source)
Pseudomystides Bergström, 1914 (additional source)
Scolelepis (Scolelepis) Blainville, 1828 (basis of record)
Serpula vermicularis Linnaeus, 1767 (additional source)
Sphaerodoropsis minuta (Webster & Benedict, 1887) accepted as Sphaerodoridium minutum (Webster & Benedict, 1887) (additional source)
Thelepus cincinnatus (Fabricius, 1780) (additional source)
Typosyllis (Typosyllis) Langerhans, 1879 accepted as Syllis Lamarck, 1818 (basis of record)
Typosyllis (Typosyllis) armillaris (O.F. Müller, 1776) accepted as Syllis armillaris (O.F. Müller, 1776) (basis of record)
Typosyllis (Typosyllis) hyalina (Grube, 1863) accepted as Syllis hyalina Grube, 1863 (basis of record)
Typosyllis (Typosyllis) variegata (Grube, 1860) accepted as Syllis variegata Grube, 1860 (basis of record)