Aequorea aequorea (Forsskål, 1775) accepted as Aequorea forskalea Péron & Lesueur, 1810 (additional source)
Aglaophamus verrilli (McIntosh, 1885) (additional source)
Amaroucium constellatum Verrill, 1871 accepted as Aplidium constellatum (Verrill, 1871) (additional source)
Amphipholis squamata (Delle Chiaje, 1828) (additional source)
Amphitrite cirrata Müller, 1776 (additional source)
Ampithoe valida S.I. Smith, 1873 (additional source)
Arenicola brasiliensis Nonato, 1958 (basis of record)
Barentsia laxa Kirkpatrick, 1890 (basis of record)
Bowerbankia imbricata (Adams, 1798) accepted as Amathia imbricata (Adams, 1800) (additional source)
Byblis serrata S.I. Smith, 1873 (additional source)
Caprella equilibra Say, 1818 (additional source)
Caretta caretta (Linnaeus, 1758) (additional source)
Cavolinia uncinata (A. d'Orbigny, 1835) (additional source)
Cerapus tubularis Say, 1817 (basis of record)
Chaetopterus variopedatus (Renier, 1804) (additional source)
Chaetozone setosa Malmgren, 1867 (additional source)
Chelonia mydas (Linnaeus, 1758) (additional source)
Chelonibia patula (Ranzani, 1818) accepted as Chelonibia testudinaria (Linnaeus, 1758) (additional source)
Cirratulus cirratus (O. F. Müller, 1776) (additional source)
Cryptosula pallasiana (Moll, 1803) (additional source)
Demonax microphthalmus (Verrill, 1873) accepted as Parasabella microphthalma (Verrill, 1873) (basis of record)
Diacria trispinosa (Blainville, 1821) (additional source)
Diopatra cuprea (Bosc, 1802) (basis of record)
Dodecaceria concharum Örsted, 1843 (additional source)
Dynamena cornicina McCrady, 1859 accepted as Dynamena disticha (Bosc, 1802) (additional source)
Ectopleura dumortierii (Van Beneden, 1844) (additional source)
Eucheilota ventricularis McCrady, 1859 (additional source)
Eunice norvegica (Linnaeus, 1767) (additional source)
Exogone (Exogone) dispar (Webster, 1879) accepted as Exogone dispar (Webster, 1879) (additional source)
Flabellina verrucosa (M. Sars, 1829) accepted as Coryphella verrucosa (M. Sars, 1829) (additional source)
Garveia franciscana (Torrey, 1902) accepted as Calyptospadix cerulea Clarke, 1882 (additional source)
Gonionemus vertens A. Agassiz, 1862 (additional source)
Halitiara formosa Fewkes, 1882 (additional source)
Harmothoe imbricata (Linnaeus, 1767) (additional source)
Hybocodon prolifer Agassiz, 1860 (additional source)
Istiophorus platypterus (Shaw, 1792) (basis of record)
Laomedea calceolifera (Hincks, 1871) (additional source)
Lepas anserifera Linnaeus, 1767 represented as Lepas (Lepas) anserifera Linnaeus, 1767 (additional source)
Lepidonotus squamatus (Linnaeus, 1758) (additional source)
Lineus sanguineus (Rathke, 1799) (additional source)
Lissodendoryx isodictyalis (Carter, 1882) represented as Lissodendoryx (Lissodendoryx) isodictyalis (Carter, 1882) (additional source)
Loimia medusa (Savigny, 1822) (additional source)
Lucifer faxoni Borradaile, 1915 accepted as Belzebub faxoni (Borradaile, 1915) (basis of record)
Lygia exotica Roux, 1828 accepted as Ligia (Megaligia) exotica Roux, 1828 (additional source)
Maldane sarsi Malmgren, 1865 (additional source)
Marphysa bellii (Audouin & Milne Edwards, 1833) accepted as Paucibranchia bellii (Audouin & Milne Edwards, 1833) (additional source)
Marphysa sanguinea (Montagu, 1813) (additional source)
Neanthes acuminata (Ehlers, 1868) (additional source)
Nephtys caeca (Fabricius, 1780) (additional source)
Nephtys ciliata (Müller, 1788) (additional source)
Obelia bidentata Clark, 1875 (additional source)
Paraprionospio pinnata (Ehlers, 1901) (additional source)
Pedicellina cernua (Pallas, 1774) (additional source)
Pennaria disticha Goldfuss, 1820 (additional source)
Phronima sedentaria (Forskål, 1775) (additional source)
Physalia physalis (Linnaeus, 1758) (additional source)
Podarkeopsis Laubier, 1961 (additional source)
Podocoryna carnea M. Sars, 1846 (additional source)
Polydora (Polydora) socialis (Schmarda, 1861) accepted as Dipolydora socialis (Schmarda, 1861) (additional source)
Pygospio elegans Claparède, 1863 (additional source)
Scoloplos armiger (Müller, 1776) (additional source)
Scruparia chelata (Linnaeus, 1758) (additional source)
Spio filicornis (Müller, 1776) (additional source)
Spiophanes bombyx (Claparède, 1870) (additional source)
Syllis spongiphila Verrill, 1885 accepted as Haplosyllis spongiphila (Verrill, 1885) (basis of record)
Tharyx acutus Webster & Benedict, 1887 (additional source)
Thetys vagina Tilesius, 1802 (additional source)
Tiaropsis multicirrata (M. Sars, 1835) (additional source)
Tomopteris septentrionalis Steenstrup, 1849 (additional source)
Turritopsis nutricula McCrady, 1857 (additional source)
Zygonemertes virescens (Verrill, 1879) (additional source)

English American tube-dwelling anemone for Ceriantheopsis americana (Agassiz in Verrill, 1864)
English ceriantharian anemone for Ceriantheopsis americana (Agassiz in Verrill, 1864)
English northern stony coral [from synonym] for Astrangia astreiformis Milne Edwards & Haime, 1849
English southern cerianthid for Ceriantheopsis americana (Agassiz in Verrill, 1864)
English star coral [from synonym] for Astrangia astreiformis Milne Edwards & Haime, 1849
English yellow flabby-sponge for Mycale (Carmia) fibrexilis (Wilson, 1894)