Abarenicola claparedi oceanica (Healy & Wells, 1959) (basis of record)
Abarenicola claparedi vagabunda Healy & Wells, 1959 (basis of record)
Acoetes Audouin & Milne Edwards, 1832 (basis of record)
Acoetes melanonota (Grube, 1876) (basis of record)
Aglaophamus munamaorii (Gibbs, 1971) (basis of record)
Amage gallasii Marion, 1875 (basis of record)
Amphitrite auricoma Müller, 1776 accepted as Amphictene auricoma (O.F. Müller, 1776) (source of synonymy)
Anchinothria cirrobranchiata (Moore, 1903) (basis of record)
Anchinothria crassisetosa (Chamberlin, 1919) (basis of record)
Anchinothria macrobranchiata (McIntosh, 1885) (basis of record)
Arabella (Arabella) iricolor (Montagu, 1804) accepted as Arabella iricolor (Montagu, 1804) (basis of record)
Arabella logani Crossland, 1924 (basis of record)
Arabellites saxelensis Jan du Chêne, 1975 † (basis of record)
Arenicola (Pteroscolex) (basis of record)
Aricia cuvieri [auct.] accepted as Orbinia cuvierii (Audouin & Milne Edwards, 1833) accepted as Orbinia sertulata (Savigny, 1822) (basis of record)
Aricidea (Acmira) catherinae Laubier, 1967 (basis of record)
Aricidea (Acmira) horikoshii Imajima, 1973 (basis of record)
Aricidea (Acmira) lopezi Berkeley & Berkeley, 1956 (basis of record)
Aricidea (Acmira) simplex Day, 1963 (basis of record)
Aricidea (Acmira) trilobata Imajima, 1973 (basis of record)
Aricidea (Aedicira) pacifica Hartman, 1944 (basis of record)
Aricidea (Allia) monicae Laubier, 1967 accepted as Aricidea (Strelzovia) monicae Laubier, 1967 (basis of record)
Aricidea (Allia) ramosa Annenkova, 1934 accepted as Aricidea (Strelzovia) ramosa Annenkova, 1934 (basis of record)
Aricidea (Aricidea) [Webster, 1879, sensu stricto] (basis of record)
Aricidea (Aricidea) curviseta Day, 1963 (basis of record)
Aricidea (Aricidea) fragilis Webster, 1879 (basis of record)
Aricidea (Aricidea) pseudoarticulata Hobson, 1972 (basis of record)
Aricidea hartmanae (Strelzov, 1968) (basis of record)
Aurospio banyulensis (Laubier, 1966) (basis of record)
Aurospio pilkena (Wilson, 1990) (basis of record)
Axionice (Parascione) (basis of record)
Axiothella mucosa (Andrews, 1891) accepted as Clymenella mucosa (Andrews, 1891) (basis of record)
Bathymacella uschakovi (Averincev, 1972) (basis of record)
Betapista Banse, 1980 (basis of record)
Bhawania riveti (Gravier, 1908) (basis of record)
Bispira elegans (Bush, 1905) (basis of record)
Bispira guinensis (Augener, 1918) (basis of record)
Brachysyllis infuscata (Ehlers, 1901) (basis of record)
Branchiocapitella Fauvel, 1932 accepted as Capitella Blainville, 1828 (basis of record)
Branchiomma pseudoviolacea (Augener, 1922) (basis of record)
Bushiella (Bushiella) Knight-Jones, 1973 (basis of record)
Capitobranchus Day, 1962 (basis of record)
Caulostrepsis Clarke, 1908 † (basis of record)
Ceratocephala fauveli Hartmann-Schröder, 1962 accepted as Gymnonereis fauveli (Hartmann-Schröder, 1962) (basis of record)
Ceratocephale pacifica (Hartman, 1960) (basis of record)
Ceratonereis (Composetia) vittata Langerhans, 1884 (basis of record)
Ceratonereis beringiana Levenstein, 1961 represented as Ceratonereis (Composetia) beringiana (Levenstein, 1961) (basis of record)
Ceratonereis coracina (Grube, 1878) represented as Ceratonereis (Composetia) coracina (Grube, 1878) (basis of record)
Ceratonereis dunckeri (Augener, 1924) represented as Ceratonereis (Composetia) dunckeri (Augener, 1924) (basis of record)
Ceratonereis flagellipes (Fauvel, 1932) represented as Ceratonereis (Composetia) flagellipes (Fauvel, 1932) (basis of record)
Ceratonereis gorbunovi (Uschakov, 1950) represented as Ceratonereis (Composetia) gorbunovi (Uschakov, 1950) (basis of record)
Ceratonereis paucidentata (Moore, 1903) represented as Ceratonereis (Composetia) paucidentata (Moore, 1903) (basis of record)
Ceratonereis perkinsi Hartmann-Schröder, 1985 represented as Ceratonereis (Ceratonereis) perkinsi Hartmann-Schröder, 1985 (basis of record)
Ceratonereis pietschmanni (Holly, 1935) represented as Ceratonereis (Composetia) pietschmanni (Holly, 1935) (basis of record)
Ceratonereis rolasiensis (Augener, 1918) represented as Ceratonereis (Composetia) rolasiensis (Augener, 1918) (basis of record)
Ceratonereis scotiae (Berkeley & Berkeley, 1956) represented as Ceratonereis (Composetia) scotiae (Berkeley & Berkeley, 1956) (basis of record)
Ceratonereis tunicatae (Hartman, 1936) represented as Ceratonereis (Composetia) tunicatae (Hartman, 1936) (basis of record)
Charybs Montfort, 1810 in Mörch, 1863 (basis of record)
Chone costulata (Grube, 1877) (basis of record)
Circeini (basis of record)
Cirriformia spirabrancha (Moore, 1904) (basis of record)
Clavadoce nigrimaculata (Moore, 1909) (basis of record)
Cloudina Germs, 1972 (basis of record)
Cloudina hartmanae Germs, 1972 (basis of record)
Clymene (Isocirrus) (basis of record)
Clymene (Praxillella) (basis of record)
Clymenura columbiana (Berkeley, 1929) (basis of record)
Colymmatops Peters, 1854 (basis of record)
Composetia scotiae (Berkeley & Berkeley, 1956) (basis of record)
Conorca Regenhardt, 1961 † (basis of record)
Contramyzostoma sphaera Eeckhaut, Grygier & Deheyn, 1998 (basis of record)
Crozetospira Rzhavsky, 1997 (basis of record)
Crozetospira dufresnei Rzhavsky, 1997 (basis of record)
Cyclocirra Müller, 1841 (basis of record)
Cyclocirra thompsonii Müller, 1841 (basis of record)
Dasychone lucullana (Delle Chiaje, 1828) accepted as Branchiomma lucullanum (Delle Chiaje, 1828) (source of synonymy)
Dasynema de Saint-Joseph, 1894 (basis of record)
Decemunciger Zottoli, 1982 (basis of record)
Delosites raridentatus † (basis of record)
Dentinephtys glabra (Hartman, 1950) accepted as Nephtys glabra Hartman, 1950 (basis of record)
Diopatra (Paradiopatra) Ehlers, 1887 represented as Paradiopatra Ehlers, 1887 (basis of record)
Diploconcha † (basis of record)
Ditrupa (Ditrupa) Berkeley, 1835 (basis of record)
Ditrupa (Ditrupa) geniculata Chiplonkar, 1976 † (basis of record)
Dorvillea (Dorvillea) (basis of record)
Dorvillea annulata (Moore, 1906) accepted as Schistomeringos annulata (Moore, 1906) (basis of record)
Dorvillea rudolphi (Delle Chiaje, 1828) accepted as Schistomeringos rudolphi (Delle Chiaje, 1828) (basis of record)
Drilonereisites Eller, 1964 † (basis of record)
Eclysippe trilobata (Hartman, 1969) (basis of record)
Endecamera Zottoli, 1982 (basis of record)
Enipo tamarae (Annenkova, 1952) (basis of record)
Eteone (Mysta) picta (Quatrefages, 1866) accepted as Mysta picta (Quatrefages, 1866) (basis of record)
Eteone (Pterocirrus) (basis of record)
Eteone siphodonta (Delle Chiaje, 1830) accepted as Mysta siphodonta (Delle Chiaje, 1830) (basis of record)
Eulalia (Eulalia) Savigny, 1822 (basis of record)
Eulalia (Eumida) (basis of record)
Eulalia (Phyllotethys) (basis of record)
Eulalia (Sige) (basis of record)
Eulalia artica Annenkova, 1946 (basis of record)
Eulepethus hamifer (Grube, 1875) (basis of record)