Abyssoninoe Orensanz, 1990 (additional source)
Aglaophamus malmgreni (Théel, 1879) (basis of record)
Amaeana Hartman, 1959 (additional source)
Amaeana trilobata (Sars, 1863) (additional source)
Ampharete Malmgren, 1866 (additional source)
Ampharete acutifrons (Grube, 1860) (additional source)
Ampharete baltica Eliason, 1955 (additional source)
Ampharete falcata Eliason, 1955 (basis of record)
Ampharete finmarchica (M. Sars, 1865) (basis of record)
Amphicteis Grube, 1850 (additional source)
Amphicteis gunneri (M. Sars, 1835) (additional source)
Amphitrite Müller, 1771 (additional source)
Amphitrite cirrata Müller, 1776 (basis of record)
Amythasides Eliason, 1955 (additional source)
Amythasides macroglossus Eliason, 1955 (basis of record)
Anobothrus Levinsen, 1884 (additional source)
Anobothrus gracilis (Malmgren, 1866) (additional source)
Aonides Claparède, 1864 (additional source)
Aonides oxycephala (Sars, 1862) (basis of record)
Aonides paucibranchiata Southern, 1914 (basis of record)
Apistobranchus Levinsen, 1884 (additional source)
Apistobranchus tullbergi (Théel, 1879) (additional source)
Aricidea Webster, 1879 (additional source)
Aricidea catherinae Laubier, 1967 represented as Aricidea (Acmira) catherinae Laubier, 1967 (basis of record)
Aricidea cerrutii Laubier, 1966 represented as Aricidea (Acmira) cerrutii Laubier, 1966 (basis of record)
Aricidea minuta Southward, 1956 represented as Aricidea (Aricidea) minuta Southward, 1956 (basis of record)
Aricidea simonae Laubier & Ramos, 1974 represented as Aricidea (Acmira) simonae Laubier & Ramos, 1974 (basis of record)
Aricidea suecica Eliason, 1920 represented as Aricidea (Strelzovia) suecica Eliason, 1920 (additional source)
Aricidea wassi Pettibone, 1965 represented as Aricidea (Aricidea) wassi Pettibone, 1965 (basis of record)
Atherospio Mackie & Duff, 1986 (additional source)
Autolytus Grube, 1850 accepted as Myrianida Milne Edwards, 1845 (additional source)
Axionice Malmgren, 1866 (additional source)
Axionice maculata (Dalyell, 1853) accepted as Pista maculata (Dalyell, 1853) (additional source)
Axiothella Verrill, 1900 (basis of record)
Brada Stimpson, 1853 (additional source)
Brada villosa (Rathke, 1843) accepted as Bradabyssa villosa (Rathke, 1843) (basis of record)
Brania Quatrefages, 1866 (additional source)
Capitella Blainville, 1828 (additional source)
Capitella capitata (Fabricius, 1780) (basis of record)
Caulleriella Chamberlin, 1919 (additional source)
Ceratocephale Malmgren, 1867 (additional source)
Ceratocephale loveni Malmgren, 1867 (basis of record)
Chaetoparia Malmgren, 1867 (basis of record)
Chaetoparia nilssoni Malmgren, 1867 (basis of record)
Chaetopterus Cuvier, 1830 (additional source)
Chaetopterus variopedatus (Renier, 1804) (basis of record)
Chaetozone Malmgren, 1867 (additional source)
Chaetozone setosa Malmgren, 1867 (additional source)
Chirimia Light, 1991 (additional source)
Chirimia biceps (M. Sars, 1861) (additional source)
Chrysopetalum Ehlers, 1864 (basis of record)
Chrysopetalum debile (Grube, 1855) (basis of record)
Cirratulus Lamarck, 1818 (additional source)
Cirratulus cirratus (O. F. Müller, 1776) (additional source)
Cirrophorus Ehlers, 1908 (basis of record)
Cirrophorus branchiatus Ehlers, 1908 (basis of record)
Cirrophorus furcatus (Hartman, 1957) (basis of record)
Clymenura Verrill, 1900 (basis of record)
Clymenura borealis (Arwidsson, 1906) (basis of record)
Cossura Webster & Benedict, 1887 (additional source)
Cossura longocirrata Webster & Benedict, 1887 (basis of record)
Dioplosyllis Gidholm, 1962 (basis of record)
Dioplosyllis cirrosa Gidholm, 1962 (basis of record)
Diplocirrus Haase, 1915 (additional source)
Diplocirrus glaucus (Malmgren, 1867) (additional source)
Dipolydora Verrill, 1881 (additional source)
Dipolydora caulleryi (Mesnil, 1897) (basis of record)
Dipolydora flava (Claparède, 1870) (additional source)
Dipolydora giardi (Mesnil, 1893) (additional source)
Dipolydora quadrilobata (Jacobi, 1883) (basis of record)
Dipolydora socialis (Schmarda, 1861) (additional source)
Ditrupa Berkeley, 1835 (additional source)
Ditrupa arietina (O. F. Müller, 1776) (basis of record)
Dodecaceria Örsted, 1843 (additional source)
Dodecaceria concharum Örsted, 1843 (additional source)
Drilonereis Claparède, 1870 (additional source)
Drilonereis filum (Claparède, 1868) (basis of record)
Eclysippe Eliason, 1955 (additional source)
Eclysippe vanelli (Fauvel, 1936) (additional source)
Ephesiella Chamberlin, 1919 (additional source)
Ephesiella abyssorum (Hansen, 1878) (basis of record)
Eteone Savigny, 1822 (additional source)
Eteone (Mysta) barbata (Malmgren, 1865) accepted as Eteone barbata (Malmgren, 1865) accepted as Mysta barbata Malmgren, 1865 (additional source)
Eteone flava (Fabricius, 1780) (basis of record)
Eteone foliosa Quatrefages, 1866 accepted as Hypereteone foliosa (Quatrefages, 1865) (basis of record)
Eteone longa (Fabricius, 1780) (basis of record)
Eteone picta Quatrefages, 1866 accepted as Mysta picta (Quatrefages, 1866) (basis of record)
Eteone spetsbergensis Malmgren, 1865 (additional source)
Euclymene Verrill, 1900 (additional source)
Euclymene droebachiensis (Sars, 1872) (basis of record)
Euclymene lumbricoides [auct. misspelling] accepted as Euclymene lombricoides (Quatrefages, 1866) (basis of record)
Euclymene robusta (Arwidsson, 1906) accepted as Heteroclymene robusta Arwidsson, 1906 (additional source)
Eulalia Savigny, 1822 (additional source)
Eulalia bilineata (Johnston, 1840) (basis of record)
Eulalia mustela Pleijel, 1987 (basis of record)
Eulalia viridis (Linnaeus, 1767) (additional source)
Eumida Malmgren, 1865 (additional source)
Eumida bahusiensis Bergstrom, 1914 (basis of record)
Eumida sanguinea (Örsted, 1843) (basis of record)
Eunereis elitoralis (Eliason, 1962) (additional source)