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 lineata Grube, 1863 (source of synonymy)
Amblyosyllis madeirensis Langerhans, 1879 (source of synonymy)
Ancistrosyllis cingulata (Korschelt, 1893) (additional source)
Anoplonereis herrmanni Giard, 1882 (source of synonymy)
Anoplosyllis edentula Claparède, 1868 (additional source)
Anoplosyllis edentula Claparède, 1868 (source of synonymy)
Anoplosyllis fulva Marion & Bobretzky, 1875 accepted as Syllides fulvus (Marion & Bobretzky, 1875) (source of synonymy)
Aphrodita aculeata Linnaeus, 1758 (additional source)
Arabella geniculata (Claparède, 1868) (additional source)
Arabella iricolor (Montagu, 1804) (additional source)
Autolytus (Stephanosyllis) scapularis Claparède, 1864 accepted as Proceraea scapularis (Claparède, 1864) (source of synonymy)
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)
Ceratonereis fallax (Quatrefages, 1866) (basis of record)
Ceratonereis hircinicola (Eisig, 1870) represented as Ceratonereis (Composetia) hircinicola (Eisig, 1870) (source of synonymy)
Chloeia venusta Quatrefages, 1866 (additional source)
Corynocephalus albomaculatus Levinsen, 1884 accepted as Alciopina parassitica Claparède & Panceri, 1867 represented as Alciopina parasitica Claparède & Panceri, 1867 (source of synonymy)
Drilonereis filum (Claparède, 1868) (additional source)
Ehlersia (Syllis) simplex Langerhans, 1879 accepted as Syllis amica Quatrefages, 1866 (source of synonymy)
Ehlersia nepiotoca Caullery & Mesnil, 1916 (new combination reference)
Erinaceusyllis erinaceus (Claparède, 1863) (additional source)
Eteone picta Quatrefages, 1866 accepted as Mysta picta (Quatrefages, 1866) (source of synonymy)
Eulalia bilineata (Johnston, 1840) (additional source)
Eulalia fuscescens Saint-Joseph, 1888 (source of synonymy)
Eulalia pusilla Ørstedt, 1843 (source of synonymy)
Eulalia quadrilineata Saint-Joseph, 1888 accepted as Eulalia bilineata (Johnston, 1840) (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 purpurea Grube, 1866 (additional source)
Eunice rubrocincta Ehlers, 1868 accepted as Eunice harassii Audouin & Milne Edwards, 1833 accepted as Leodice harassii (Audouin & Milne Edwards, 1833) (source of synonymy)
Eunice torquata Quatrefages, 1866 accepted as Leodice torquata (Quatrefages, 1866) (source of synonymy)
Euphrosine foliosa Audouin & H Milne Edwards, 1833 (additional source)
Euphrosyne robertsoni McIntosh, 1900 accepted as Euphrosine foliosa Audouin & H Milne Edwards, 1833 (source of synonymy)
Eurysyllis Ehlers, 1864 (additional source)
Eurysyllis lenta Quatrefages, 1866 accepted as Eurysyllis tuberculata Ehlers, 1864 (source of synonymy)
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)
Eusyllis monilicornis Saint Joseph, 1887 accepted as Eusyllis assimilis Marenzeller, 1875 (source of synonymy)
Exogone (Exogone) torulosa (Claparède, 1864) (basis of record)
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 (Sylline) brevipes (Claparède, 1864) (additional source)
Exogone gemmifera Pagenstecher, 1862 accepted as Exogone naidina Örsted, 1845 (additional source)
Exogone gemmifera Pagenstecher, 1862 accepted as Exogone naidina Örsted, 1845 (source of synonymy)
Exogone hebes (Webster & Benedict, 1884) accepted as Parexogone hebes (Webster & Benedict, 1884) (basis of record)
Exogone oerstedii (Kölliker in Koch, 1846) (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)
Gattiola spectabilis Johnston in Baird, 1861 accepted as Amblyosyllis spectabilis (Johnston in Baird, 1861) (source of synonymy)
Glycera alba (O.F. Müller, 1776) (additional source)
Glycera capitata Örsted, 1843 (additional source)
Glycera convoluta Keferstein, 1862 accepted as Glycera tridactyla Schmarda, 1861 (additional source)
Glycera convoluta uncinata Rioja, 1918 accepted as Glycera tridactyla Schmarda, 1861 (source of synonymy)
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)
Grubea protandrica du Plessis, 1908 (basis of record)
Grubea pusilla (Dujardin, 1851) accepted as Brania pusilla (Dujardin, 1851) (source of synonymy)
Grubea tenuicirrata (Claparède, 1864) accepted as Salvatoria tenuicirrata (Claparède, 1864) (source of synonymy)
Halosydna gelatinosa (Sars, 1835) (source of synonymy)
Haplosyllis spongicola (Grube, 1855) (additional source)
Harmothoe impar (Johnston, 1839) (source of synonymy)
Harmothoe johnstoni (McIntosh, 1876) (additional source)
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)
Hemipodus septentrionalis Roule, 1896 (source of synonymy)
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)
Lagisca elisabethae McIntosh, 1900 accepted as Harmothoe impar (Johnston, 1839) (source of synonymy)
Lagisca extenuata (Grube, 1840) accepted as Harmothoe extenuata (Grube, 1840) (additional source)
Leocrates claparedii (Costa in Claparède, 1868) (additional source)
Lepidasthenia elegans (Grube, 1840) (additional source)
Lepidonotus brevicornis Quatrefages, 1866 (source of synonymy)
Lepidonotus clava (Montagu, 1808) (additional source)
Leptonereis glauca (Claparède, 1870) accepted as Websterinereis glauca (Claparède, 1870) (source of synonymy)
Lopadorrhynchus krohnii (Claparède, 1870) (additional source)
Lugia pterophora (Ehlers, 1864) (additional source)
Lysidice margaritacea Claparède, 1868 accepted as Lysidice ninetta Audouin & H Milne Edwards, 1833 (source of synonymy)
Lysidice ninetta Audouin & H Milne Edwards, 1833 (additional source)
Marphysa sanguinea (Montagu, 1813) (additional source)

 Status

 for Lagisca floccosa (Savigny, 1818)

indeterminable, thus doubtful species (cf. Fauvel 1923: 78) (R. Barnich) [details]

 Status

 for Lepidonotus brevicornis Quatrefages, 1866

indeterminable, thus doubtful species (cf. Fauvel 1923: 95) (R. Barnich) [details]

 Taxonomy

 for Spermosyllis torulosa Claparède, 1864

From the examination of Claparède's 1864 drawings, reproduced in Fauvel (1923), the species may be ascribed to ... [details]