Aglaophamus malmgreni (Théel, 1879) (additional source)
Ameira parvula (Claus, 1866) (additional source)
Ampelisca macrocephala Liljeborg, 1853 (additional source)
Ampharete acutifrons (Grube, 1860) (additional source)
Ampharete baltica Eliason, 1955 (additional source)
Ampharete finmarchica (M. Sars, 1865) (additional source)
Amphicteis gunneri (M. Sars, 1835) (additional source)
Amphilochus manudens Spence Bate & Westwood, 1862 (additional source)
Amphitrite Müller, 1771 (additional source)
Amphitrite cirrata Müller, 1776 (additional source)
Anaitides groenlandica (Örsted, 1842) accepted as Phyllodoce groenlandica Örsted, 1842 (additional source)
Anaitides maculata (Linnaeus, 1767) accepted as Phyllodoce maculata (Linnaeus, 1767) (additional source)
Anaitides mucosa (Örsted, 1843) accepted as Phyllodoce mucosa Örsted, 1843 (additional source)
Anobothrus gracilis (Malmgren, 1866) (additional source)
Anonyx lilljeborgi Boeck, 1871 (additional source)
Argissa hamatipes (Norman, 1869) (additional source)
Aricidea Webster, 1879 (additional source)
Aricidea suecica Eliason, 1920 represented as Aricidea (Strelzovia) suecica Eliason, 1920 (additional source)
Arrhis phyllonyx (M. Sars, 1858) (additional source)
Astarte elliptica (T. Brown, 1827) accepted as Tridonta elliptica (T. Brown, 1827) (additional source)
Astarte montagui (Dillwyn, 1817) accepted as Tridonta montagui (Dillwyn, 1817) (additional source)
Autolytus Grube, 1850 accepted as Myrianida Milne Edwards, 1845 (additional source)
Bothriocephalus Rudolphi, 1808 (additional source)
Bothriocephalus scorpii (Müller, 1776) Cooper, 1917 (additional source)
Brachydiastylis resima (Krøyer, 1846) (additional source)
Brada villosa (Rathke, 1843) accepted as Bradabyssa villosa (Rathke, 1843) (additional source)
Bradya (Bradya) typica Boeck, 1873 represented as Bradya typica Boeck, 1873 (additional source)
Byblis gaimardi (Krøyer, 1846) accepted as Byblis gaimardii (Krøyer, 1846) (additional source)
Campylaspis rubicunda (Liljeborg, 1855) (additional source)
Canuella perplexa Scott T. & Scott A., 1893 (additional source)
Capitella Blainville, 1828 (additional source)
Capitella capitata (Fabricius, 1780) (additional source)
Cellepora pumicosa (Pallas, 1766) (additional source)
Ceratocephale loveni Malmgren, 1867 (additional source)
Cervinia synarthra Sars G.O., 1910 represented as Cervinia synarthra synartha Sars G.O., 1910 (additional source)
Chaetopterus Cuvier, 1830 (additional source)
Chaetozone setosa Malmgren, 1867 (additional source)
Cirratulus Lamarck, 1818 (additional source)
Cirratulus cirratus (O. F. Müller, 1776) (additional source)
Cirrophorus branchiatus Ehlers, 1908 (additional source)
Cirrophorus furcatus (Hartman, 1957) (additional source)
Cletodes longicaudatus (Boeck, 1872) (additional source)
Cletodes tenuipes Scott T., 1897 (additional source)
Clymenura Verrill, 1900 (additional source)
Clymenura borealis (Arwidsson, 1906) (additional source)
Corophium crassicorne Bruzelius, 1859 accepted as Crassicorophium crassicorne (Bruzelius, 1859) (additional source)
Cossura longocirrata Webster & Benedict, 1887 (additional source)
Crossaster papposus (Linnaeus, 1767) (additional source)
Dactylopusia tisboides (Claus, 1863) (additional source)
Dactylopusia vulgaris Sars G.O., 1905 represented as Dactylopusia vulgaris vulgaris Sars G.O., 1905 (additional source)
Danielssenia typica Boeck, 1873 (additional source)
Dendrodoa grossularia (Van Beneden, 1846) (additional source)
Diastylis lucifera (Krøyer, 1837) (additional source)
Diplocirrus Haase, 1915 (additional source)
Dipolydora caulleryi (Mesnil, 1897) (additional source)
Dodecaceria concharum Örsted, 1843 (additional source)
Drilonereis Claparède, 1870 (additional source)
Echiurus echiurus (Pallas, 1766) (additional source)
Ectinosoma melaniceps Boeck, 1865 (additional source)
Escharella immersa (Fleming, 1828) (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) (additional source)
Eteone foliosa Quatrefages, 1866 accepted as Hypereteone foliosa (Quatrefages, 1865) (additional source)
Eteone longa (Fabricius, 1780) (additional source)
Eteone spetsbergensis Malmgren, 1865 (additional source)
Eualus pusiolus (Krøyer, 1841) (additional source)
Eudorella Norman, 1867 (additional source)
Eudorella emarginata (Krøyer, 1846) (additional source)
Eudorellopsis deformis (Krøyer, 1846) (additional source)
Eulalia Savigny, 1822 (additional source)
Eulalia bilineata (Johnston, 1840) (additional source)
Eulalia viridis (Linnaeus, 1767) (additional source)
Eumida sanguinea (Örsted, 1843) (additional source)
Eunice pennata (Müller, 1776) (additional source)
Eunoe nodosa (M. Sars, 1861) (additional source)
Eusirus longipes Boeck, 1861 (additional source)
Eusyllis blomstrandi Malmgren, 1867 (additional source)
Exogone Örsted, 1845 (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)
Facelina bostoniensis (Couthouy, 1838) (additional source)
Flustra foliacea (Linnaeus, 1758) (additional source)
Gammaropsis nitida (Stimpson, 1853) (additional source)
Halectinosoma Vervoort, 1962 (additional source)
Halectinosoma curticorne (Boeck, 1872) (additional source)
Haploops Liljeborg, 1856 (additional source)
Haploops tubicola Liljeborg, 1856 (additional source)
Harmothoe fragilis Moore, 1910 (additional source)
Heterolaophonte stroemii (Baird, 1837) represented as Heterolaophonte stroemii stroemii (Baird, 1837) (additional source)
Hyalinoecia tubicola (O.F. Müller, 1776) (additional source)
Hyas coarctatus Leach, 1815 (additional source)
Ischyrocerus Krøyer, 1838 (additional source)
Ischyrocerus anguipes Krøyer, 1838 (additional source)
Laonice cirrata (M. Sars, 1851) (additional source)
Laophonte Philippi, 1840 (additional source)
Lepidonotus squamatus (Linnaeus, 1758) (additional source)
Leptomesochra Sars G.O., 1911 (additional source)
Leptostylis villosa Sars, 1869 (additional source)
Levinsenia gracilis (Tauber, 1879) (additional source)
Lumbrineris Blainville, 1828 (additional source)