Alciopina parassitica Claparède & Panceri, 1867 represented as Alciopina parasitica Claparède & Panceri, 1867 (additional source)
Amblyosyllis formosa (Claparède, 1863) accepted as Amblyosyllis spectabilis (Johnston in Baird, 1861) (additional source)
Amblyosyllis madeirensis Langerhans, 1879 (source of synonymy)
Anoplosyllis edentula Claparède, 1868 (source of synonymy)
Anoplosyllis edentula Claparède, 1868 (additional source)
Aphrodita aculeata Linnaeus, 1758 (additional source)
Arabella geniculata (Claparède, 1868) (additional source)
Arabella iricolor (Montagu, 1804) (additional source)
Autolytus aurantiacus (Claparède, 1868) accepted as Proceraea aurantiaca Claparède, 1868 (additional source)
Autolytus brachycephalus (Marenzeller, 1874) accepted as Myrianida brachycephala (Marenzeller, 1874) (additional source)
Autolytus rubropunctatus (Grube, 1860) accepted as Myrianida rubropunctata (Grube, 1860) (additional source)
Brania pusilla (Dujardin, 1851) (additional source)
Drilonereis filum (Claparède, 1868) (additional source)
Ehlersia nepiotoca Caullery & Mesnil, 1916 (new combination reference)
Erinaceusyllis erinaceus (Claparède, 1863) (additional source)
Eulalia bilineata (Johnston, 1840) (additional source)
Eulalia fuscescens Saint-Joseph, 1888 (source of synonymy)
Eulalia tripunctata McIntosh, 1874 (source of synonymy)
Eulalia viridis (Linnaeus, 1767) (additional source)
Eumida sanguinea (Örsted, 1843) (additional source)
Eunice harassii Audouin & Milne Edwards, 1833 accepted as Leodice harassii (Audouin & Milne Edwards, 1833) (additional source)
Eunice torquata Quatrefages, 1866 accepted as Leodice torquata (Quatrefages, 1866) (source of synonymy)
Euphrosine foliosa Audouin & H Milne Edwards, 1833 (additional source)
Eurysyllis Ehlers, 1864 (additional source)
Eurysyllis tuberculata Ehlers, 1864 (additional source)
Eusthenelais hibernica McIntosh, 1876 (basis of record)
Eusyllinae Malaquin, 1893 (additional source)
Eusyllis Malmgren, 1867 (additional source)
Eusyllis assimilis Marenzeller, 1875 (additional source)
Eusyllis blomstrandi Malmgren, 1867 (additional source)
Eusyllis intermedia Saint-Joseph, 1887 (additional source)
Eusyllis lamelligera Marion & Bobretzky, 1875 (additional source)
Exogone (Exogone) verugera (Claparède, 1868) accepted as Exogone verugera (Claparède, 1868) (additional source)
Exogone (Parexogone) hebes (Webster & Benedict, 1884) accepted as Parexogone hebes (Webster & Benedict, 1884) (additional source)
Exogone hebes (Webster & Benedict, 1884) accepted as Parexogone hebes (Webster & Benedict, 1884) (basis of record)
Exogone verugera (Claparède, 1868) (basis of record)
Exogoninae Langerhans, 1879 (additional source)
Fauvelia Gravier, 1900 (additional source)
Fauvelia martinensis Gravier, 1900 (additional source)
Glycera alba (O.F. Müller, 1776) (additional source)
Glycera capitata Örsted, 1842 (additional source)
Glycera convoluta Keferstein, 1862 accepted as Glycera tridactyla Schmarda, 1861 (additional source)
Glycera gigantea Quatrefages, 1866 accepted as Glycera fallax Quatrefages, 1850 (source of synonymy)
Glycera tesselata Grube, 1863 (additional source)
Glycera unicornis Lamarck, 1818 (additional source)
Halosydna gelatinosa (Sars, 1835) accepted as Alentia gelatinosa (M. Sars, 1835) (source of synonymy)
Haplosyllis spongicola (Grube, 1855) (additional source)
Harmothoe impar (Johnston, 1839) (source of synonymy)
Harmothoe ljungmani (Malmgren, 1867) accepted as Malmgrenia ljungmani (Malmgren, 1867) (basis of record)
Harmothoe longisetis (Grube, 1863) (source of synonymy)
Harmothoe lunulata (Delle Chiaje, 1830) accepted as Malmgrenia lunulata (Delle Chiaje, 1830) (additional source)
Harmothoe reticulata (Claparède, 1870) (additional source)
Harmothoe spinifera (Ehlers, 1864) (additional source)
Hermodice carunculata (Pallas, 1766) (additional source)
Histriobdella homari Beneden, 1858 (additional source)
Kefersteinia Quatrefages, 1866 accepted as Psamathe Johnston, 1836 (additional source)
Kefersteinia cirrhata (Keferstein, 1862) accepted as Psamathe fusca Johnston, 1836 (additional source)
Laetmonice filicornis Kinberg, 1856 (additional source)
Lepidonotus clava (Montagu, 1808) (additional source)
Lysidice ninetta Audouin & H Milne Edwards, 1833 (additional source)
Marphysa sanguinea (Montagu, 1813) (additional source)
Myrianida pinnigera (Montagu, 1808) (additional source)
Mysta picta (Quatrefages, 1866) (additional source)
Neanthes succinea (Leuckart, 1847) accepted as Alitta succinea (Leuckart, 1847) (additional source)
Nereis pelagica Linnaeus, 1758 (additional source)
Nereis zonata Malmgren, 1867 (additional source)
Nudisyllis divaricata (Keferstein, 1862) (additional source)
Nudisyllis pulligera (Krohn, 1852) (additional source)
Odontosyllis Claparède, 1863 (additional source)
Odontosyllis ctenostoma Claparède, 1868 (additional source)
Odontosyllis cucullata (McIntosh, 1908) (basis of record)
Odontosyllis fulgurans (Audouin & Milne Edwards, 1833) (additional source)
Odontosyllis polyodonta Saint Joseph, 1887 (additional source)
Onuphis eremita Audouin & Milne Edwards, 1833 (additional source)
Ophiodromus flexuosus (Delle Chiaje, 1827) accepted as Oxydromus flexuosus (Delle Chiaje, 1827) (additional source)
Ophryotrocha puerilis Claparède & Mecznikow, 1869 (additional source)
Ophryotrocha puerilis siberti (McIntosh, 1885) accepted as Ophryotrocha siberti (McIntosh, 1885) (status source)
Opisthodonta Langerhans, 1879 (additional source)
Paraehlersia ferrugina (Langerhans, 1881) (additional source)
Parapionosyllis Fauvel, 1923 (original description)
Parapionosyllis minuta (Pierantoni, 1903) (additional source)
Perinereis cultrifera (Grube, 1840) (additional source)
Phyllodoce lamelligera (Gmelin in Linnaeus, 1788) (additional source)
Phyllodoce laminosa Savigny in Lamarck, 1818 (source of synonymy)
Phyllodoce lineata (Claparède, 1870) (source of synonymy)
Phyllodoce pusilla (Claparède, 1870) accepted as Nereiphylla pusilla (Claparède, 1870) (source of synonymy)
Pionosyllis Malmgren, 1867 (additional source)
Pionosyllis lamelligera Saint Joseph, 1887 accepted as Synmerosyllis lamelligera (Saint-Joseph, 1887) (additional source)
Pionosyllis longocirrata Saint-Joseph, 1887 accepted as Opisthodonta longocirrata (Saint-Joseph, 1887) (additional source)
Platynereis coccinea (Delle Chiaje, 1822) (additional source)
Podarke pallida (Claparède, 1864) accepted as Oxydromus pallidus Claparède, 1864 (source of synonymy)
Polychaeta (identification resource)
Polynoe scolopendrina Savigny, 1822 (additional source)
Proceraea aurantiaca Claparède, 1868 (source of synonymy)
Proceraea picta Ehlers, 1864 (additional source)
Psammolyce arenosa (Delle Chiaje, 1830) accepted as Pelogenia arenosa (Delle Chiaje, 1830) (additional source)
Pterocirrus limbata (Claparède, 1868) accepted as Pterocirrus limbatus (Claparède, 1868) (additional source)
Pterocirrus macroceros (Grube, 1860) (source of synonymy)
Sagitella kowalevskii Wagner, 1872 accepted as Sagitella kowalewskii Wagner, 1872 (additional source)
Salvatoria clavata (Claparède, 1863) (additional source)