| Nominal Species (n = 485) | Present allocation (n = 452) | Ref. |
|---|---|---|
| Macellicephala abyssicola Fauvel, 1913 | Macellicephala abyssicola | 19 |
| Eunoe abyssorum McIntosh, 1885 | Eunoe abyssorum | 19 |
| Harmothoe acanellae Verrill | Harmothoe acanellae | 19 |
| Polynoe acanellae Verrill, 1885 | Polynoe acanellae | 19 |
| Harmothoe aculeata Andrews, 1891 | Harmothoe aculeata | 19 |
| Scalisetosus acutipinnis Ehlers, 1920 | Scalisetosus acutipinnis | 19 |
| Harmothoe adventor Skogsberg, 1928 | Hesperonoe adventor | 75097 |
| Lepidonotus aeololepis Haswell, 1883 | Lepidonotus aeololepis | 19 |
| Lagisca aequespina Langerhans, 1884 | Harmothoe aequespina | 19 |
| Antinoe aequiseta Kinberg, 1855 | Harmothoe aequiseta | 75097 |
| Hermadion africanus Hartman, 1974 | Hermadion africanus | 2663 |
| Laenilla alba Malmgren, 1865 | Malmgrenia alba | 75097 |
| Lepidogyra alba Hartman, 1967 | Lepidogyra alba | 19 |
| Polynoe alba Treadwell, 1906 | Lepidasthenia alba | 75097 |
| Macellicephala alia Levenstein, 1978 | Macellicephala alia | 3477 |
| Halosydna alleni Day, 1934 | Hyperhalosydna alleni | 75097 |
| Eunoe alvinella Pettibone, 1989 | Eunoe alvinella | 8159 |
| Macellicephaloides alvini Pettibone, 1989 | Macellicephaloides alvini | 8159 |
| Opisthotrochopodus alvinus Pettibone, 1985 | Opisthotrochopodus alvinus | 8159 |
| Hermadion ambiguum Ehlers, 1900 | Hermadion ambiguum | 19 |
| Nychia amondseni Malmgren, 1868 | Gattyana amondseni | 75097 |
| Andresia ampullifera Prenant, 1924 | Andresia ampullifera | 19 |
| Polynoe ampullifera Grube, 1878 | Paralepidonotus ampulliferus | 75097 |
| Harmothoe anderssoni Bergstroem, 1916 | Eunoe anderssoni | 75097 |
| Hesperonoe andriashevi Averincev, 1990 | Hesperonoe andriashevi | 3477 |
| Antinoe angusta Verrell, 1874 | Bylgides groenlandicus | 3477 |
| Alentia annamita Fauvel, 1934 | Alentia annamita | 19 |
| Antinoe anoculata Moore, 1910 | Antinoella anoculata | 75097 |
| Austrolaenilla antarctica Bergstroem, 1916 | Austrolaenilla antarctica | 19 |
| Lagisca antarctica McIntosh, 1885 | Harmothoe spinosa | 3477 |
| Macelloides antarctica Uschakov, 1957 | Macelloides antarctica | 19 |
| Polynoe antarctica Kinberg, 1858 | Polynoe antarctica | 3477 |
| Eupolynoe anticostiensis McIntosh, 1874 | Arcteobia anticostiensis | 75097 |
| Polynoe antillarum Schmarda, 1861 | Lepidonotus antillarum | 75097 |
| Nemidia antillicola Augener, 1906 | Nemidia antillicola | 19 |
| Harmothoe antilopes McIntosh, 1876 | Harmothoe antilopes | 3477 |
| Lepidasthenia antipathicola Benham, 1927 | Benhamipolynoe antipathicola | 75097 |
| Intoshella aphthalma Gallardo, 1968 | Pararctonoella aphthalma | 3477 |
| Allmaniella arafurensis Horst, 1915 | Allmaniella arafurensis | 19 |
| Lepidonotus arenosus Ehlers, 1901 | Lepidonotus arenosus | 3477 |
| Polynoe areolata Grube, 1860 | Harmothoe areolata | 75097 |
| Mayella articulata Hartmann-Schröder, 1959 | Mayella articulata | 8159 |
| Antinoe ascidiicola Haswell, 1883 | Antinoe ascidiicola | 19 |
| Polynoe ascidioides McIntosh, 1885 | Macellicephala ascidioides | 3477 |
| Harmothoe asiatica Uschakov & Wu, 1962 | Harmothoe asiatica | 3477 |
| Polynoe aspera Hansen, 1878 | Harmothoe aspera | 75097 |
| Eunoe assimilis Mcintosh, 1924 | Eunoe assimilis | 19 |
| Polynoe astericola Delle Chiaje, 1841 | Acholoe astericola | 2663 |
| Lepidonotopodium atalantae Debruyères & Hourdez, 2000 | Lepidonotopodium atalantae | 8159 |
| Macellicephala atlantica Stop-bowitz, 1948 | Macellicephala atlantica | 19 |
| Podarmus atlanticus Monro, 1930 | Podarmus atlanticus | 19 |
| Alentiana aurantiaca Hartman, 1942 | Alentiana aurantiaca | 19 |
| Halosydna australis Kinberg, 1855 | Halosydnella australis | 75097 |
| Hololepida australis Monro, 1936 | Hololepida australis | 19 |
| Harmothoe balboensis Monro, 1928 | Harmothoe balboensis | 8159 |
| Eunoe barbata Moore, 1910 | Eunoe barbata | 19 |
| Lepidonotus barbatus Augener, 1910 | Chaetacanthus barbatus | 75097 |
| Malmgreniella baschi Pettibone, 1993 | Malmgreniella baschi | 8159 |
| Sheila bathypelagica Monro, 1930 | Sheila bathypelagica | 19 |
| Harmothoe bellani Barnich & Fiege, 2000 | Harmothoe bellani | 2663 |
| Harmothoe benthaliana McIntosh, 1885 | Harmothoe benthaliana | 19 |
| Harmothoe benthophila Ehlers, 1913 | Harmothoe benthophila | 7866 |
| Harmothoe beringiana Annenkova, 1952 | Harmothoe beringiana | 19 |
| Lepidasthenia berkeleyae Pettibone, 1948 | Lepidasthenia berkeleyae | 19 |
| Polynoe boholensis Grube, 1878 | Paralepidonotus boholensis | 75097 |
| Harmothoe branchiata Hartman, 1974 | Harmothoe branchiata | 2663 |
| Thermopolynoe branchiata Miura, 1994 | Thermopolynoe branchiata | 8774 |
| Harmothoe brevipalpa Bergström, 1916 | Harmothoe magellanica | 3477 |
| Halosydna brevisetosa Kinberg, 1855 | Halosydna brevisetosa | 19 |
| Lepidasthenia brunnea Day, 1960 | Lepidasthenia brunnea | 3477 |
| Polynoella brunnea Treadwell, 1943 | Polynoella brunnea | 19 |
| Polynoe caeciliae Fauvel, 1913 | Polynoe caeciliae | 19 |
| Lepidonotus caelorus Moore, 1903 | Lepidonotus squamatus | 75097 |
| Lepidonotus caeruleus Kinberg, 1855 | Lepidonotus caeruleus | 7866 |
| Benhamipolynoe cairnsi Pettibone, 1989 | Benhamipolynoe cairnsi | 8159 |
| Nemidia canadensis McIntosh, 1874 | Nemidia canadensis | 19 |
| Parmenis capensis Kinberg, 1855 | Harmothoe aequiseta | 75097 |
| Polynoe capensis McIntosh, 1885 | Polynoe capensis | 19 |
| Polynoe caputleonis Mcintosh, 1924 | Polynoe caputleonis | 19 |
| Polynoe carinulatus Grube, 1870 | Lepidonotus carinulatus | 75097 |
| Malmgrenia castanea McIntosh, 1876 | Malmgreniella castanea | 19 |
| Scalisetosus ceramensis McIntosh, 1885 | Scalisetosus ceramensis | 19 |
| Bathybahamas charleneae Pettibone, 1985 | Bathybahamas charleneae | 7866 |
| Subadyte chesterfieldensis Hanley & Burke, 1991 | Subadyte chesterfieldensis | 3477 |
| Parahalosydna chinensis Monro, 1928 | Parahalosydna chinensis | 19 |
| Enipo chuckchi Uschakov, 1982 | Enipo chuckchi | 3477 |
| Gattyana ciliata Moore, 1902 | Gattyana ciliata | 19 |
| Iphione cimex Quatrefages, 1865 | Iphione cimex | 19 |
| Lepidonotus citrifrons Augener, 1906 | Lepidonotus citrifrons | 7866 |
| Eunoe clarki Pettibone, 1951 | Eunoe clarki | 19 |
| Aphrodita clava Montagu, 1808 | Lepidonotus clava | 75097 |
| Gastrolepidia clavigera Schmarda, 1861 | Gastrolepidia clavigera | 3197 |
| Harmothoe clavigera Sars, 1863 | Harmothoe clavigera | 3477 |
| Polynoe comma Thomson, 1902 | Lepidastheniella comma | 75097 |
| Bathyadmetella commando Pettibone, 1967 | Bathyadmetella commando | 19 |
| Hololepidella commensalis Willey, 1905 | Hololepidella commensalis | 19 |
| Lepidametria commensalis Webster, 1879 | Lepidasthenia commensalis | 75097 |
| Harmothoe complanata Johnson, 1901 | Hesperonoe complanata | 75097 |
| Uncopolynoe corallicola Hartmann-Schroeder, 1960 | Uncopolynoe corallicola | 19 |
| Iphione coriolis Hanley & Burke, 1991 | Iphione coriolis | 3477 |
| Polynoe cornuta Fischli, 1903 | Polynoe cornuta | 19 |
| Eulagisca corrientis McIntosh, 1885 | Eulagisca corrientis | 19 |
| Lagisca crassa Treadwell, 1924 | Eunoe crassa | 75097 |
| Harmothoe crassicirrata Johnson, 1897 | Harmothoe crassicirrata | 19 |
| Polynoe crinoidicola Potts, 1910 | Paradyte crinoidicola | 2663 |
| Gattyana cristata Willey, 1902 | Barrukia cristata | 75097 |
| Polynoe cristata Grube, 1876 | Lepidonotus cristatus | 75097 |
| Lagisca crosetensis McIntosh, 1885 | Harmothoe crosetensis | 3477 |
| Polynoe crucis Grube, 1856 | Harmothoe crucis | 75097 |
| Branchiplicatus cupreus Pettibone, 1985 | Branchiplicatus cupreus | 8159 |
| Malmgrenia curacaoensis Augener, 1927 | Malmgrenia curacaoensis | 19 |
| Lepidasthenia curta Chamberlin, 1919 | Lepidasthenia curta | 8159 |
| Malmgreniella darbouxi Pettibone, 1993 | Malmgreniella darbouxi | 3477 |
| Harmothoe dearborni Pettibone, 1955 | Harmothoe dearborni | 19 |
| Gattyana deludens Augener, 1928 | Gattyana deludens | 19 |
| Lepidonotus dentatus Okuda & Yamada, 1954 | Lepidonotus dentatus | 19 |
| Eunoe depressa Moore, 1905 | Eunoe depressa | 19 |
| Malmgreniella dicirra Hartman, 1967 | Malmgreniella dicirra | 19 |
| Lepidonotus dictyolepis Haswell, 1883 | Augenerilepidonotus dictyolepis | 3477 |
| Polynoe dictyophora Grube, 1878 | Harmothoe dictyophora | 75097 |
| Lepidasthenia digueti Gravier, 1905 | Lepidasthenia digueti | 8159 |
| Frennia dubia Viguier, 1912 | Frennia dubia | 19 |
| Lepidonotus durbanensis Day, 1934 | Lepidonotus durbanensis | 19 |
| Blygia elegans Théel, 1879 | Bylgides elegans | 75097 |
| Drieschia elegans Seidler, 1924 | Drieschia elegans | 19 |
| Halosydna elegans Kinberg, 1858 | Halosydna elegans | 8159 |
| Polynoe elegans Grube, 1840 | Lepidasthenia elegans | 75097 |
| Euphione elisabethae McIntosh, 1885 | Euphione elisabethae | 19 |
| Branchipolynoe eliseae Lindgren, Hatch, Hourdez, Seid & Rouse, 2019 | Branchipolynoe eliseae | 3477 |
| Iphionella elongata Treadwell, 1939 | Iphionella elongata | 8288 |
| Peinaleopolynoe elvisi Hatch & Rouse, 2020 | Peinaleopolynoe elvisi | 3477 |
| Vampiropolynoe embleyi Marcus & Hourdez, 2002 | Vampiropolynoe embleyi | 8774 |
| Antinoe epitoca Monro, 1930 | Antinoe epitoca | 19 |
| Harmothoe ernesti Augener, 1931 | Harmothoe ernesti | 7866 |
| Paralepidonotus erythromaris Hanley, 1991 | Paralepidonotus erythromaris | 2663 |
| Hemilepidia erythrotaenia Schmarda, 1861 | Hemilepidia erythrotaenia | 19 |
| Harmothoe etheridgei Benham, 1915 | Eunoe etheridgei | 75097 |
| Polynoe euplectellae McIntosh, 1885 | Intoshella euplectellae | 75097 |
| Eunoe eura Chamberlin, 1919 | Eunoe eura | 19 |
| Polynoe extenuata Grube, 1840 | Lagisca extenuata | 75097 |
| Dilepidonotus falklandicus Hartman, 1967 | Dilepidonotus falklandicus | 19 |
| Hermadion fauveli Gravier, 1918 | Hermadion fauveli | 19 |
| Hermadion ferox Baird, 1865 | Antarctinoe ferox | 3477 |
| Thermiphione fijiensis Miura, 1994 | Thermiphione fijiensis | 8774 |
| Lepidonotopodium fimbriatum Pettibone, 1983 | Lepidonotopodium fimbriatum | 8159 |
| Antinoe finmarchica malmgren, 1867 | Antinoe finmarchica | 7866 |
| Lagisca flaccida Potts, 1910 | Lagisca flaccida | 19 |
| Polynoe floccosa Savigny, 1818 | Lagisca floccosa | 75097 |
| Bayerpolynoe floridensis Pettibone, 1991 | Bayerpolynoe floridensis | 7866 |
| Hololepidella flynni Benham, 1921 | Hololepidella flynni | 19 |
| Lepidonotus fragilis Baird, 1863 | Arctonoe fragilis | 75097 |
| Harmothoe fraserthomsoni Mcintosh, 1897 | Harmothoe fraserthomsoni | 19 |
| Polynoe fullo Grube, 1877 | Harmothoe spinosa | 3477 |
| Antinoana fusca Hartman & Fauchald, 1971 | Antinoana fusca | 19 |
| Laenilla fusca McIntosh, 1885 | Harmothoe fusca | 75097 |
| Polynoe fusca Grube, 1858 | Halosydnella fusca | 75097 |
| Halosydna fuscamaculata Treadwell, 1924 | Halosydnella fuscamaculata | 75097 |
| Iphione fustis Hoagland, 1920 | Iphione fustis | 19 |
| Halosydna galapagensis Monro, 1928 | Halosydnella galapagensis | 75097 |
| Macellicephala galapagensis Pettibone, 1985 | Macellicephala galapagensis | 8159 |
| Malmgreniella galetaensis Pettibone, 1993 | Malmgreniella galetaensis | 7866 |
| Polynoe gaspeensis McIntosh, 1874 | Polynoe gaspeensis | 19 |
| Polynoe gelatinosa Sars, 1835 | Alentia gelatinosa | 75097 |
| Eulagisca gigantea Monro, 1939 | Eulagisca gigantea | 19 |
| Polynoe gigas Johnson, 1897 | Lepidasthenia gigas | 75097 |
| Harmothoe gilchristi Day, 1960 | Harmothoe gilchristi | 19 |
| Halosydna glabra Hartman, 1939 | Halosydna glabra | 7866 |
| Iphionides glabra Hartmann-Schröder, 1977 | Iphionides glabra | 7866 |
| Polynoe glauca Peters, 1854 | Lepidonotus glaucus | 2663 |
| Peinaleopolynoe goffrediae Hatch & Rouse, 2020 | Peinaleopolynoe goffrediae | 3477 |
| Harmothoe goreensis Augener, 1918 | Harmothoe goreensis | 19 |
| Harmothoe gourdoni Gravier, 1911 | Harmothoe fullo | 3477 |
| Enipo gracilis Verrill, 1874 | Enipo gracilis | 3477 |
| Herdmanella gracilis Ehlers, 1908 | Herdmanella gracilis | 19 |
| Scalisetosus gracilis Morgado & Amaral, 1981 | Scalisetosus gracilis | 7866 |
| Macellicephaloides grandicirra Uschakov, 1955 | Macellicephaloides grandicirra | 19 |
| Branchinotogluma grasslei Pettibone, 1985 | Branchinotogluma grasslei | 8159 |
| Hololepidella greeffi Augener, 1918 | Hololepidella greeffi | 19 |
| Nectochaeta grimaldii von Marenzeller, 1892 | Lepidasthenia grimaldii | 2663 |
| Halosydna grisea Treadwell, 1929 | Halosydnella grisea | 75097 |
| Polynoe grisea Ehrenberg & Grube, 1869 | Harmothoe grisea | 2663 |
| Gorgoniapolynoe guadalupensis Pettibone, 1991 | Gorgoniapolynoe guadalupensis | 8159 |
| Bathykurila guaymasensis Pettibone, 1898 | Bathykurila guaymasensis | 8774 |
| Bathykurila guaymensis Pettibone, 1989 | Bathykurila guaymensis | 8159 |
| Macellicephala hadalis Kirkegaard, 1956 | Bathykermadeca hadalis | 3477 |
| Harmothoe haliaeti McIntosh, 1876 | Harmothoe haliaeti | 19 |
| Branchipolynoe halliseyae Lindgren, Hatch, Hourdez, Seid & Rouse, 2019 | Branchipolynoe halliseyae | 3477 |
| Parahalosydnopsis hartmanae Pettibone, 1977 | Parahalosydnopsis hartmanae | 82601 |
| Antinoe hastulifera Pruvot, 1936 | Austrolaenilla hastulifera | 3477 |
| Mysta hastulifera Pruvot, 1936 | Austrolaenilla hastulifera | 3477 |
| Lepidonotus havaicus Kinberg, 1855 | Lepidonotus havaicus | 19 |
| Lepidonotus hedleyi Benham, 1915 | Lepidonotus purpureus | 2663 |
| Polynoe helotypus Grube, 1863 | Lepidonotus helotypus | 75097 |
| Malmgreniella hendleri Pettibone, 1993 | Malmgreniella hendleri | 7866 |
| Branchinotogluma hessleri Pettibone, 1985 | Branchinotogluma hessleri | 8159 |
| Lagisca hexactinellidae McIntosh, 1885 | Lagisca hexactinellidae | 19 |
| Harmothoe hirsuta Johnson, 1897 | Harmothoe hirsuta | 19 |
| Lagisca hirsuta Rullier, 1972 | Lagisca hirsuta | 3477 |
| Eunoe hispanica McIntosh, 1876 | Eunoe hispanica | 19 |
| Harmothoe hollisi Pettibone, 1989 | Harmothoe hollisi | 8159 |
| Eunoe hozawai Okuda, 1939 | Eunoe hozawai | 19 |
| Evarne hubrechti McIntosh, 1885 | Lagisca hubrechti | 75097 |
| Lepidonotus humilis Augener, 1922 | Lepidonopsis humilis | 19 |
| Lepidonotus hupferi Augener, 1918 | Lepidonotus hupferi | 3477 |
| Pelagomacellicephala iliffei Pettibone, 1961 | Pelagomacellicephala iliffei | 7866 |
| Aphrodita imbricata Treadwell, 1926 | Gattyana cirrhosa | 75097 |
| Harmothoe impar ciliata Monro, 1936 | Harmothoe impar | 3477 |
| Harmothoe impar notalis Monro, 1930 | Harmothoe magellanica | 3477 |
| Harmothoe imparciliata Monro, 1936 | Harmothoe impar | 86525 |
| Lagisca impatiens Webster, 1879 | Lagisca impatiens | 19 |
| Polynoe impatiens Savigny, 1818 | Lepidonotus impatiens | 75097 |
| Polynoe innatans Chamberlin, 1919 | Polynoe innatans | 19 |
| Halosydna interrupta von Marenzeller, 1902 | Lepidasthenia interrupta | 75097 |
| Harmothoe iphionelloides Johnson, 1901 | Gattyana iphionelloides | 75097 |
| Eunoe iphionoides McIntosh, 1885 | Eunoe iphionoides | 19 |
| Levensteiniella iris Hourdez & Desbruyeres, 2003 | Levensteiniella iris | 8774 |
| Lagisca irritans von Marenzeller, 1904 | Lagisca irritans | 8159 |
| Eunoe issunboushi Jimi, Hookabe, Moritaki, Kimura & Imura, 2021 | Eunoe issunboushi | 3477 |
| Lepidasthenia izukai Imajima & Hartman, 1964 | Lepidasthenia izukai | 82601 |
| Lepidonotus jacksoni Kinberg, 1855 | Lepidonotus jacksoni | 19 |
| Cervilia japonica Frickinger, 1916 | Cervilia japonica | 19 |
| Lepidonotus johnsoni Darboux, 1899 | Halosydna johnsoni | 75097 |
| Evarne johnstoni McIntosh, 1876 | Harmothoe johnstoni | 75097 |
| Lepidonotus johnstoni Kinberg, 1855 | Thormora johnstoni | 75097 |
| Lepidonotopodium jouinae Desbruyeres & Hourdez, 2000 | Lepidonotopodium jouinae | 8774 |
| Thormora jukesii Baird, 1865 | Thormora jukesii | 82601 |
| Branchipolynoe kajsae Lindgren, Hatch, Hourdez, Seid & Rouse, 2019 | Branchipolynoe kajsae | 3477 |
| Polynoe kampeni Horst, 1915 | Polynoe kampeni | 19 |
| Evarne kerguelensis McIntosh, 1885 | Eunoe kerguelensis | 3477 |
| Hermadion kerguelensis McIntosh, 1885 | Hermadion kerguelensis | 3477 |
| Eunoe kermadeca Kirkegaard, 1995 | Eunoe kermadeca | 3477 |
| Lagisca kermadecensis McIntosh, 1885 | Antinoe kermadecensis | 3477 |
| Enipo kinbergi Malmgren, 1865 | Enipo kinbergi | 19 |
| Levensteiniella kincaidi Pettibone, 1985 | Levensteiniella kincaidi | 8159 |
| Tenonia kitsapensis Nichols, 1969 | Tenonia kitsapensis | 19 |
| Bathypolaria kondrashovi Kolbasova, in Kobasova et al., 2020 | Bathypolaria kondrashovi | 3477 |
| Lepidasthenia krassini Annenkova, 1952 | Parahalosydna krassini | 75097 |
| Antinoe lactea Day, 1953 | Antinoe lactea | 19 |
| Hesperonoe laevis Hartman, 1961 | Hesperonoe laevis | 8159 |
| Physalidonotus laevis Benham, 1915 | Euphione squamosa | 75097 |
| Polyeunoa laevis McIntosh, 1885 | Polyeunoa laevis | 19 |
| Polynoe laevis Audouin & Milne Edwards, 1832 | Polynoe laevis | 3477 |
| Harmothoe lagiscoides Willey, 1902 | Harmothoe lagiscoides | 19 |
| Harmothoe lanceocirrata Treadwell, 1928 | Harmothoe crucis | 75097 |
| Austrolaenilla lanellae Pettibone, 1955 | Austrolaenilla lanellae | 19 |
| Halosydna latior Chamberlin, 1919 | Halosydna latior | 19 |
| Macellicephala laubieri Reyss, 1971 | Macellicephala laubieri | 3477 |
| Halosydna leioseta Chamberlin, 1919 | Arctonoe pulchra | 3477 |
| Lepidonotus leius Chamberlin, 1919 | Lepidonotus leius | 19 |
| Polynoe leucohyba Schmarda, 1861 | Halosydna leucohyba | 75097 |
| Scalisetosus levis von Marenzeller, 1902 | Paradyte levis | 2663 |
| Polynoella levisetosa McIntosh, 1885 | Polynoella levisetosa | 19 |
| Arctonoe lia Chamberlin, 1920 | Arctonoe vittata | 3477 |
| Malmgreniella lilianae Petttibone, 1993 | Malmgreniella lilianae | 3477 |
| Parmenis ljungmani Malmgren, 1867 | Malmgreniella ljungmani | 75097 |
| Lepidasthenia longicirrata Berkeley, 1923 | Lepidasthenia longicirrata | 19 |
| Scalisetosus longicirrus Day, 1962 | Paradyte crinoidicola | 2663 |
| Macellicephala longipalpa Uschakov, 1957 | Macellicephala longipalpa | 3477 |
| Admetella longipedata McIntosh, 1885 | Admetella longipedata | 7866 |
| Polynoe longipedata McIntosh, 1885 | Admetella longipedata | 3477 |
| Polynoe longisetis Grube, 1863 | Harmothoe longisetis | 75097 |
| Lepidonotus lordi Baird, 1863 | Arctonoe vittata | 3477 |
| Melaenis loveni Malmgren, 1865 | Melaenis loveni | 19 |
| Polynoe lunulata Delle Chiaje, 1828 | Malmgreniella lunulata | 2663 |
| Malmgreniella maccraryae Pettibone, 1993 | Malmgreniella maccraryae | 7866 |
| Harmothoe macginitiei Pettibone, 1955 | Harmothoe macginitiei | 19 |
| Harmothoe macnabi Pettibone, 1985 | Harmothoe macnabi | 8159 |
| Eunoe macrophthalma Mcintosh, 1924 | Eunoe macrophthalma | 19 |
| Drieschella maculata Augener & Pettibone, 1970 | Drieschella maculata | 19 |
| Lepidasthenia maculata Potts, 1910 | Lepidasthenia maculata | 19 |
| Hermadion magalhaensi Kinberg, 1855 | Hermadion magalhaensi | 19 |
| Lagisca magellanica McIntosh, 1885 | Harmothoe magellanica | 3477 |
| Lagisca magellanica grubei McIntosh, 1885 | Harmothoe spinosa | 3477 |
| Lagisca magellanica var. grubei McIntosh, 1885 | Harmothoe spinosa | 87480 |
| Hololepida magna Moore, 1905 | Hololepida magna | 19 |
| Lucopia magnicirra Pillai, 1965 | Lucopia magnicirra | 19 |
| Austropolaria magnicirrata Neal, Barnich, Wiklund & Glover, 2012 | Austropolaria magnicirrata | 3477 |
| Polynoe magnipalpa McIntosh, 1885 | Kermadecella magnipalpa | 75097 |
| Eunoe mammiloba Czerniavsky, 1882 | Eunoe mammiloba | 19 |
| Lepidonotus margaritaceus Kinberg, 1858 | Lepidonotus margaritaceus | 8159 |
| Harmothoe maxillospinosa Saint-Joseph, 1888 | Harmothoe maxillospinosa | 19 |
| Lepidonotus melanogrammus Haswell, 1883 | Lepidonotus melanogrammus | 3477 |
| Branchipolynoe meridae Lindgren, Hatch, Hourdez, Seid & Rouse, 2019 | Branchipolynoe meridae | 3477 |
| Harmothoe mexicana Chamberlin, 1919 | Harmothoe mexicana | 19 |
| Subadyte mexicana Fauchald, 1972 | Subadyte mexicana | 8159 |
| Nemidia microlepida Moore, 1910 | Nemidia microlepida | 19 |
| Lepidasthenia microlepis Potts, 1910 | Lepidasthenia microlepis | 19 |
| Antinoe microps Kinberg, 1855 | Antinoe microps | 19 |
| Eunoe mindanavensis McIntosh, 1885 | Eunoe mindanavensis | 19 |
| Peinaleopolynoe mineoi Hatch & Rouse, 2020 | Peinaleopolynoe mineoi | 3477 |
| Macellicephala mirabilis McIntosh, 1885 | Macellicephala mirabilis | 19 |
| Eupolynoe mollis McIntosh, 1876 | Eucranta mollis | 75097 |
| Lepidastheniella monroi Benham, 1950 | Lepidastheniella monroi | 19 |
| Hartmania moorei Pettibone, 1955 | Hartmania moorei | 19 |
| Hemilepidia moretonensis Augener, 1922 | Hemilepidia moretonensis | 19 |
| Harmothoe multisetosa Moore, 1910 | Harmothoe multisetosa | 8159 |
| Lagisca multisetosa Moore, 1902 | Lagisca multisetosa | 19 |
| Polynoe muricata Savigny, 1818 | Iphione muricata | 75097 |
| Malmgreniella murrayensis Pettibone, 1993 | Malmgreniella murrayensis | 2663 |
| Neohololepidella murrayi Pettibone, 1969 | Neohololepidella murrayi | 19 |
| Plotolepis nans Chamberlin, 1919 | Drieschia nans | 75097 |
| Polynoe nesiotes Chamberlin, 1919 | Malmgrenia nesiotes | 75097 |
| Lepidonotus nesophilus Chamberlin, 1919 | Lepidonotus nesophilus | 8159 |
| Malmgrenia nigralba Berkley, 1923 | Malmgreniella nigralba | 19 |
| Harmothoe nigricans Horst, 1915 | Verrucapelma nigricans | 3477 |
| Polynoe nigropunctata Horst, 1915 | Polynoe nigropunctata | 19 |
| Branchinotogluma nikkoensis Jimi, Chen & Fujiwara, 2022 | Branchinotogluma nikkoensis | 3477 |
| Polynoe nivea Sars, 1863 | Leucia nivea | 75097 |
| Polynoe nodosa Sars, 1861 | Eunoe nodosa | 75097 |
| Heteropolynoe nordgaardi Bidenkap, 1907 | Heteropolynoe nordgaardi | 19 |
| Lepidonotus notata Hoagland, 1919 | Thormora notata | 75097 |
| Nemidia notialis Monro, 1939 | Nemidia notialis | 19 |
| Polynoe nuda Grube, 1870 | Lepidasthenia nuda | 2663 |
| Gattyana nutti Pettibone, 1955 | Gattyana nutti | 19 |
| Antipathipolyeunoa nuttingi Pettibone, 1985 | Antipathipolyeunoa nuttingi | 7866 |
| Lepidonotus obscurus Gravier, 1902 | Lepidonotus glaucus | 2663 |
| Halosydna oculata Treadwell, 1926 | Halosydnella oculata | 75097 |
| Eunoe oerstedi Malmgren, 1865 | Eunoe oerstedi | 19 |
| Lepidasthenia ohshimai Okuda, 1936 | Lepidasthenia ohshimai | 3477 |
| Eunoe opalina McIntosh, 1885 | Eunoe opalina | 19 |
| Peinaleopolynoe orphanae Hatch & Rouse, 2020 | Peinaleopolynoe orphanae | 3477 |
| Branchinotogluma ovata Wu, Zhan & Xu, 2019 | Branchinotogluma ovata | 3477 |
| Iphione ovata Kinberg, 1955 | Iphione ovata | 19 |
| Polynoella pachylepis Augener, 1906 | Polynoella pachylepis | 19 |
| Scalisetosus pacificus Izuka, 1912 | Scalisetosus pacificus | 19 |
| Gattyana pallida Ehlers, 1908 | Eunoe pallida | 2663 |
| Harmothoe pallida Ehlers, 1908 | Eunoe pallida | 75097 |
| Eulagisca panamensis Hartman, 1939 | Eulagisca panamensis | 19 |
| Malmgreniella panamensis Pettibone, 1993 | Malmgreniella panamensis | 7866 |
| Scalisetosus papilliferus Horst, 1915 | Subadyte papillifera | 3477 |
| Antinoe parasitica Webster, 1879 | Antinoe parasitica | 19 |
| Halosydna parva Kinberg, 1855 | Halosydna parva | 19 |
| Euphionella patagonica Monro, 1936 | Euphionella patagonica | 19 |
| Halosydna patagonica Kinberg, 1855 | Halosydna patagonica | 19 |
| Physalidonotus paucibranchiatus Benham, 1915 | Euphione squamosa | 75097 |
| Antinoe pelagica Monro, 1930 | Austrolaenilla pelagica | 3477 |
| Drieschia pelagica Michaelsen, 1892 | Drieschia pelagica | 19 |
| Gorgoniapolynoe pelagica Pettibone, 1991 | Gorgoniapolynoe pelagica | 7866 |
| Polynoe pellucida Ehlers, 1864 | Subadyte pellucida | 2663 |
| Lepidonotus permixturus Hanley & Burke, 1991 | Lepidonotus permixturus | 3477 |
| Branchipolynoe pettibonae Miura & Hashimoto, 1991 | Branchipolynoe pettibonae | 8774 |
| Branchinotogluma pettiboneae Wu, Zhan & Xu, 2019 | Branchinotogluma pettiboneae | 3477 |
| Lepidastheniella phillippensis Monro, 1924 | Lepidastheniella phillippensis | 19 |
| Lepidasthenia picta Treadwell, 1928 | Lepidasthenia picta | 8159 |
| Malmgreniella pierceae Pettibone, 1993 | Malmgreniella pierceae | 7866 |
| Lepidonotopodium piscesae Pettibone, 1986 | Lepidonotopodium piscesae | 8774 |
| Polynoe pissisi Quatrefages, 1865 | Halosydna pissisi | 75097 |
| Levensteiniella plicata Hourdez & Desbruyeres, 2000 | Levensteiniella plicata | 8774 |
| Podarmus ploa Chamberlin, 1919 | Podarmus ploa | 19 |
| Harmothoe pokoui Intes & Le Loeuff, 1975 | Harmothoe pokoui | 3477 |
| Macellicephala polaris Uschakov, 1957 | Macellicephala polaris | 19 |
| Malmgreniella polypapillata Barnich & Fiege, 2001 | Malmgreniella polypapillata | 3477 |
| Harmothoe polytrichiodes Augener, 1922 | Harmothoe crucis | 75097 |
| Lepidonotus pomarae Hartman, 1939 | Lepidonotus pomarae | 8159 |
| Frennia propinqua Viguier, 1920 | Frennia propinqua | 19 |
| Gorgoniapolynoe pseudocaeciliae Maxwell, Taboada & Taylor, 2022 | Gorgoniapolynoe pseudocaeciliae | 3477 |
| Polynoe ptycholepis Grube, 1878 | Heteralentia ptycholepis | 2663 |
| Antinoe pulchellus Kinberg, 1855 | Antinoe pulchellus | 19 |
| Polynoe pulchra Johnson, 1897 | Arctonoe pulchra | 75097 |
| Polynoe punctulata Grube, 1856 | Halosydnella punctulata | 75097 |
| Malmgreniella puntotorensis Pettibone, 1993 | Malmgreniella puntotorensis | 7866 |
| Lepidonotus purpureus Potts, 1910 | Lepidonotus purpureus | 19 |
| Polynoe pustulata McIntosh, 1885 | Halosydna leucohyba | 3477 |
| Weberia pustulata Horst, 1915 | Weberia pustulata | 19 |
| Polynoe quadricarinata Grube, 1868 | Lepidonotus glaucus | 2663 |
| Harmothoe quadrituberculata Augener, 1922 | Harmothoe quadrituberculata | 7866 |
| Polynoe rarispina Sars, 1861 | Harmothoe rarispina | 75097 |
| Nemidia regalis Benham, 1927 | Nemidia regalis | 19 |
| Perolepis regularis Ehlers, 1908 | Perolepis regularis | 19 |
| Halosydna reticulata Johnson, 1897 | Halosydna reticulata | 8159 |
| Parmenis reticulata Mcintosh, 1924 | Harmothoe dictyophora | 75097 |
| Lepidasthenia retrodentata Monro, 1933 | Lepidasthenia retrodentata | 8159 |
| Verrucapelma retusa Hanley & Burke, 1991 | Verrucapelma retusa | 3477 |
| Polaruschakov reyssi Pettibone, 1976 | Polaruschakov reyssi | 3477 |
| Eunoe rhizoicola Hartmann-Schröder, 1962 | Eunoe rhizoicola | 3477 |
| Lepidonotopodium riftense Pettibone, 1984 | Lepidonotopodium riftense | 8159 |
| Iphione risensis Pettibone, 1985 | Iphione risensis | 8159 |
| Iphionella risensis Pettibone, 1986 | Iphionella risensis | 8159 |
| Harmothoe roberti Augener, 1922 | Harmothoe variegata | 75097 |
| Lepidonotus robustus Moore, 1905 | Lepidonotus robustus | 19 |
| Pseudohalosydna rosea Fauvel, 1913 | Pseudohalosydna rosea | 19 |
| Hermadion rouchi Gravier, 1911 | Hermadion rouchi | 19 |
| Lepidasthenia rufa Treadwell, 1928 | Lepidasthenia rufa | 7866 |
| Physalidonotus rugosus Benham, 1915 | Euphione squamosa | 75097 |
| Polynoe rutilans Grube, 1878 | Australaugeneria rutilans | 75097 |
| Branchinotogluma sagamiensis Jimi, Chen & Fujiwara, 2022 | Branchinotogluma sagamiensis | 3477 |
| Harmothoe saldanha Day, 1953 | Harmothoe saldanha | 19 |
| Lepidonotus salvati Rullier, 1972 | Lepidonotus salvati | 3477 |
| Polynoe samoensis Grube, 1876 | Halosydna samoensis | 75097 |
| Branchinotogluma sandersi Pettibone, 1985 | Branchinotogluma sandersi | 8159 |
| Antinoe sarsi Kinberg, 1865 | Bylgides sarsi | 75097 |
| Lepidonotus scanlandi Hanley & Burke, 1991 | Lepidonotus scanlandi | 3477 |
| Parapolynoe scolopendrina Czerniavsky, 1882 | Polynoe scolopendrina | 75097 |
| Harmothoe scriptoria Moore, 1910 | Harmothoe scriptoria | 19 |
| Branchipolynoe seepensis Pettibone, 1986 | Branchipolynoe seepensis | 7866 |
| Hololepidella semenovi Annenkova, 1937 | Hololepidella semenovi | 19 |
| Gattyana senta Moore, 1902 | Eunoe senta | 75097 |
| Eunoe sentiformis Uschakov, 1958 | Eunoe sentiformis | 19 |
| Harmothoe serrata Day, 1963 | Harmothoe serrata | 3477 |
| Antinoe setobarba Monro, 1930 | Antinoe setobarba | 19 |
| Lepidonotus setosior Chamberlin, 1919 | Lepidonotus setosior | 19 |
| Allmaniella setubalensis McIntosh, 1885 | Allmaniella setubalensis | 19 |
| Parahalosydna sibogae Horst, 1915 | Parahalosydna sibogae | 19 |
| Lepidonotus simplicipes Haswell, 1883 | Lepidonotus simplicipes | 3477 |
| Harmothoe sinagawaensis Izuka, 1912 | Arctonoella sinagawaensis | 75097 |
| Lepidonotus socialis Kinberg, 1855 | Thormora socialis | 75097 |
| Arcteobia spinelytris Ushakov, 1955 | Arcteobia spinelytris | 19 |
| Polynoe spinifera Ehlers, 1864 | Harmothoe spinifera | 75097 |
| Harmothoe spinosa Kinberg, 1855 | Harmothoe spinosa | 19 |
| Lepidonotus spinosus Hanley & Burke, 1991 | Lepidonotus spinosus | 3477 |
| Eunoe spinulosa Verrill, 1879 | Eunoe spinulosa | 19 |
| Aphrodita squamatus Linnaeus, 1767 | Lepidonotus squamatus | 75097 |
| Nereis squamosa Delle Chiaje, 1827 | Acholoe astericola | 2663 |
| Lepidonotus stellatus Baird, 1865 | Lepidonotus glaucus | 2663 |
| Lepidonotus striata Kinberg, 1856 | Hyperhalosydna striata | 2663 |
| Halosydna styliformia Treadwell, 1928 | Halosydna styliformia | 8159 |
| Lepidasthenia stylolepis Willey, 1907 | Lepidasthenia stylolepis | 2663 |
| Lepidonotus sublevis Verrill, 1873 | Lepidonotus sublevis | 19 |
| Eunoe subtruncata Annenkova, 1937 | Eunoe subtruncata | 19 |
| Halosydna succiniseta Hamilton, 1915 | Arctonoe vittata | 3477 |
| Harmothoe sylliformia Treadwell, 1928 | Harmothoe sylliformia | 8159 |
| Branchiopolynoe symmytilida Pettibone, 1984 | Branchiopolynoe symmytilida | 8159 |
| Branchipolynoe symmytilida Pettibone, 1984 | Branchipolynoe symmytilida | 8774 |
| Polynoe synophthalma McIntosh, 1885 | Robertianella synophthalma | 3477 |
| Robertianella synophthalma McIntosh, 1885 | Robertianella synophthalma | 19 |
| Polynoe taeniata Ehlers, 1887 | Thormora taeniata | 75097 |
| Nemidia tamarae Annenkova, 1952 | Nemidia tamarae | 19 |
| Polynoe tarasovi Annenkova, 1937 | Polynoe tarasovi | 19 |
| Malmgreniella taylori Pettibone, 1993 | Malmgreniella taylori | 7866 |
| Phyllohartmania taylori Pettibone, 1961 | Phyllohartmania taylori | 19 |
| Polynoe tenax Grube, 1876 | Polynoe tenax | 19 |
| Harmothoe tenebricosa Moore, 1910 | Harmothoe tenebricosa | 8159 |
| Evarne tenuisetis McIntosh, 1885 | Harmothoe tenuisetis | 3477 |
| Euphione tenuisetosus Gravier, 1901 | Lepidonotus tenuisetosus | 75097 |
| Physalidonotus thomsoni Benham, 1916 | Euphione squamosa | 75097 |
| Branchipolynoe tjiasmantoi Lindgren, Hatch, Hourdez, Seid & Rouse, 2019 | Branchipolynoe tjiasmantoi | 3477 |
| Polynoe tomentosa Grube, 1856 | Polynoe tomentosa | 8159 |
| Nemidia torelli Malmgren, 1865 | Nemidia torelli | 19 |
| Gattyana treadwelli Pettibone, 1949 | Gattyana treadwelli | 19 |
| Iphione treadwelli Pettibone, 1986 | Iphione treadwelli | 3477 |
| Evarnella trimaculata Treadwell, 1924 | Harmothoe trimaculata | 75097 |
| Eunoe tritoni McIntosh, 1900 | Eunoe tritoni | 19 |
| Harmothoe tuberculata Treadwell, 1906 | Arctonoe tuberculata | 75097 |
| Hemilepidia tuberculata Schmarda, 1861 | Hemilepidia tuberculata | 19 |
| Halosydna tuberculifer Chamberlin, 1919 | Halosydna tuberculifer | 19 |
| Eunoe tuerkayi Barnich & Fiege, 2003 | Eunoe tuerkayi | 3477 |
| Thermiphione tufari Hartmann-Schroder, 1992 | Thermiphione tufari | 8774 |
| Branchinotogluma tunnicliffae Pettibone, 1988 | Branchinotogluma tunnicliffae | 8774 |
| Harmothoe turbinata Hanley & Burke, 1991 | Harmothoe turbinata | 3477 |
| Bathykermadeca turnerae Pettibone, 1985 | Bathykermadeca turnerae | 7866 |
| Physalidonotus turritus Benham, 1915 | Euphione squamosa | 75097 |
| Polynoe tuta Grube, 1855 | Grubeopolynoe tuta | 75097 |
| Harmothoe unicolor Baird, 1865 | Harmothoe unicolor | 19 |
| Antinoe unicrops Kinberg, 1855 | Antinoe unicrops | 7866 |
| Lepidasthenia varia Treadwell, 1917 | Lepidasthenia varia | 7866 |
| Lepidonotus variabilis Webster, 1879 | Lepidonotus variabilis | 19 |
| Harmothoe variegata Treadwell, 1917 | Harmothoe variegata | 19 |
| Lepidasthenia varius Treadwell, 1917 | Lepidasthenia varius | 19 |
| Hololepida veleronis Hartman, 1939 | Hololepida veleronis | 19 |
| Polynoe veleronis Hartman, 1939 | Polynoe veleronis | 19 |
| Polynoe venosa Grube, 1878 | Polynoe venosa | 19 |
| Macellicephaloides verrucosa Uschakov, 1955 | Macellicephaloides verrucosa | 19 |
| Hermenia verruculosa Grube, 1856 | Hermenia verruculosa | 19 |
| Lepidonotus versicolor Ehlers, 1901 | Lepidonotus versicolor | 8159 |
| Hemilepidia versluysi Horst, 1915 | Hemilepidia versluysi | 19 |
| Polynoe versluysi Horst, 1915 | Hemilepidia versluysi | 75097 |
| Harmothoe vesicudenta Hanley & Burke, 1991 | Harmothoe vesicudenta | 3477 |
| Bouchiria vesiculosa Wesenberg-Lund, 1949 | Bouchiria vesiculosa | 19 |
| Eucranta villosa Malmgren, 1865 | Eucranta villosa | 19 |
| Harmothoe villosa Treadwell, 1926 | Harmothoe villosa | 19 |
| Laenilla violacea Storm, 1879 | Harmothoe violacea | 75097 |
| Oligolepis violacea Levinsen, 1886 | Macellicephala violacea | 75097 |
| Polynoe violacea Schmarda, 1861 | Polynoe violacea | 19 |
| Polynoe virens Blanchard, 1849 | Lepidasthenia virens | 75097 |
| Macellicephaloides vitiazi Uschakov, 1955 | Macellicephaloides vitiazi | 19 |
| Harmothoe vittata Trautsch, 1889 | Harmothoe vittata | 3477 |
| Polynoe vittata Grube, 1855 | Arctonoe vittata | 3477 |
| Antinoe waahli Kinberg, 1855 | Harmothoe waahli | 75097 |
| Malmgrenia whiteavesi McIntosh, 1874 | Malmgrenia whiteavesi | 19 |
| Phyllosheila wigleyi Pettibone, 1961 | Phyllosheila wigleyi | 19 |
| Halosydna willeyi Potts, 1910 | Scalisetosus willeyi | 75097 |
| Lepidonotopodium williamsae Pettibone, 1984 | Lepidonotopodium williamsae | 8159 |
| Eunoe yedoensis McIntosh, 1885 | Eunoe yedoensis | 19 |
| Macellicephala zenkevitchi Uschakov, 1955 | Macellicephala zenkevitchi | 19 |
| Lagisca zibrowii Hartmann-Schröder, 1992 | Lagisca zibrowii | 3477 |