Acmira catherinae (Laubier, 1967) represented as Aricidea (Acmira) catherinae Laubier, 1967 (additional source)
Acrocirrus frontifilis (Grube, 1860) (additional source)
Aglaophamus circinata (Verrill in Smith & Harger, 1874) (additional source)
Aglaophamus verrilli (McIntosh, 1885) (additional source)
Amaeana trilobata (Sars, 1863) (additional source)
Ampharete acutifrons (Grube, 1860) (additional source)
Ampharete lindstroemi Hessle, 1917 (additional source)
Ampharete parvidentata Day, 1973 (additional source)
Amphicteis gunneri (M. Sars, 1835) (additional source)
Amphinome rostrata (Pallas, 1766) (additional source)
Ancistrosyllis carolinensis Gardiner, 1976 (additional source)
Ancistrosyllis groenlandica McIntosh, 1878 (additional source)
Ancistrosyllis hartmanae Pettibone, 1966 (additional source)
Ancistrosyllis jonesi Pettibone, 1966 (additional source)
Aonides mayaguezensis Foster, 1969 (additional source)
Aonides paucibranchiata Southern, 1914 (additional source)
Aphelochaeta monilaris (Hartman, 1960) (additional source)
Apoprionospio dayi Foster, 1969 (additional source)
Apoprionospio pygmaea (Hartman, 1961) (additional source)
Arabella iricolor (Montagu, 1804) (additional source)
Arabella mutans (Chamberlin, 1919) (additional source)
Arenicola cristata Stimpson, 1856 (additional source)
Aricidea (Aricidea) pseudoarticulata Hobson, 1972 (additional source)
Aricidea claudiae Laubier, 1967 represented as Aricidea (Strelzovia) claudiae Laubier, 1967 (additional source)
Aricidea fragilis Webster, 1879 represented as Aricidea (Aricidea) fragilis Webster, 1879 (additional source)
Aricidea nolani Webster & Benedict, 1887 (additional source)
Aricidea wassi Pettibone, 1965 represented as Aricidea (Aricidea) wassi Pettibone, 1965 (additional source)
Armandia agilis (Andrews, 1891) (additional source)
Armandia maculata (Webster, 1884) (additional source)
Autolytus dentalius Imajima, 1966 accepted as Myrianida dentalia (Imajima, 1966) (additional source)
Bhawania goodei Webster, 1884 (additional source)
Bispira melanostigma (Schmarda, 1861) (additional source)
Boguea enigmatica Hartman, 1945 (additional source)
Brada villosa (Rathke, 1843) accepted as Bradabyssa villosa (Rathke, 1843) (additional source)
Branchiosyllis exilis (Gravier, 1900) (additional source)
Brania clavata (Claparède, 1863) accepted as Salvatoria clavata (Claparède, 1863) (additional source)
Brania swedmarki Gidholm, 1962 accepted as Salvatoria swedmarki (Gidholm, 1962) (additional source)
Brania wellfleetensis Pettibone, 1956 (additional source)
Cabira incerta Webster, 1879 (additional source)
Capitella capitata (Fabricius, 1780) (additional source)
Caulleriella alata (Southern, 1914) (additional source)
Caulleriella killariensis (Southern, 1914) accepted as Tharyx killariensis (Southern, 1914) (additional source)
Caulleriella zetlandica (McIntosh, 1911) accepted as Chaetozone zetlandica McIntosh, 1911 (additional source)
Ceratocephale oculata Banse, 1977 (additional source)
Ceratonereis irritabilis (Webster, 1879) accepted as Parasetia irritabilis (Webster, 1879) (additional source)
Ceratonereis mirabilis Kinberg, 1865 (additional source)
Ceratonereis versipedata (Ehlers, 1887) accepted as Composetia versipedata (Ehlers, 1887) (additional source)
Chaetopterus variopedatus (Renier, 1804) (additional source)
Chaetozone setosa Malmgren, 1867 (additional source)
Chloeia viridis Schmarda, 1861 (additional source)
Chone duneri Malmgren, 1867 (additional source)
Chrysopetalum caecum Langerhans, 1880 accepted as Dysponetus caecus (Langerhans, 1880) (additional source)
Cirratulus filiformis Keferstein, 1862 accepted as Aphelochaeta filiformis (Keferstein, 1862) (additional source)
Cirratulus grandis Verrill, 1873 accepted as Cirriformia grandis (Verrill, 1873) (additional source)
Cirriformia filigera (Delle Chiaje, 1828) (additional source)
Cirrophorus branchiatus Ehlers, 1908 (additional source)
Cirrophorus furcatus (Hartman, 1957) (additional source)
Cirrophorus lyra (Southern, 1914) represented as Paradoneis lyra (Southern, 1914) (additional source)
Clymenella torquata (Leidy, 1855) (additional source)
Cossura delta Reish, 1958 (additional source)
Cossura longocirrata Webster & Benedict, 1887 (additional source)
Cossura soyeri Laubier, 1964 (additional source)
Dasybranchus lumbricoides Grube, 1878 (additional source)
Dasybranchus lunulatus Ehlers, 1887 (additional source)
Dayipsammolyce ctenidophora (Day, 1973) (basis of record)
Demonax microphthalmus (Verrill, 1873) accepted as Parasabella microphthalma (Verrill, 1873) (additional source)
Dentatisyllis carolinae (Day, 1973) (additional source)
Diopatra cuprea (Bosc, 1802) (additional source)
Diopatra tridentata Hartman, 1944 (additional source)
Dioplosyllis octodentata Perkins, 1981 (additional source)
Diplocirrus capensis Day, 1961 (additional source)
Dipolydora socialis (Schmarda, 1861) (additional source)
Dispio uncinata Hartman, 1951 (additional source)
Dodecaceria coralii (Leidy, 1855) (additional source)
Drilonereis filum (Claparède, 1868) (additional source)
Drilonereis longa Webster, 1879 (additional source)
Drilonereis magna Webster & Benedict, 1887 (additional source)
Enoplobranchus sanguineus (Verrill, 1873) (additional source)
Eteone heteropoda Hartman, 1951 accepted as Hypereteone heteropoda (Hartman, 1951) (additional source)
Eteone lactea Claparède, 1868 accepted as Hypereteone lactea (Claparède, 1868) (additional source)
Eteone longa (Fabricius, 1780) (additional source)
Euarche tubifex Ehlers, 1887 (additional source)
Euchone incolor Hartman, 1965 (additional source)
Euchone southerni Banse, 1970 (additional source)
Eumida sanguinea (Örsted, 1843) (additional source)
Eunice antennata (Savigny in Lamarck, 1818) accepted as Leodice antennata Savigny in Lamarck, 1818 (additional source)
Eunice aphroditois (Pallas, 1788) (additional source)
Eunice cariboea Grube, 1856 accepted as Nicidion cariboea (Grube, 1856) (additional source)
Eunice floridana (Pourtalès, 1867) (additional source)
Eunice norvegica (Linnaeus, 1767) (additional source)
Eunice pennata (Müller, 1776) (additional source)
Eunice vittata (Delle Chiaje, 1828) (additional source)
Eunice websteri Fauchald, 1969 (additional source)
Eunoe hubrecthi [misspelling for hubrechti] accepted as Eunoe hubrechti (McIntosh, 1900) (basis of record)
Eupolymnia nebulosa (Montagu, 1819) (additional source)
Eurysyllis tuberculata Ehlers, 1864 (additional source)
Eurythoe complanata (Pallas, 1766) (additional source)
Eusyllis assimilis Marenzeller, 1875 (additional source)
Eusyllis lamelligera Marion & Bobretzky, 1875 (additional source)
Exogone (Parexogone) caribensis San Martín, 1991 accepted as Parexogone caribensis (San Martín, 1991) (additional source)