Aeverrillia armata (Verrill, 1873) (basis of record)
Alcyonidium polyoum (Hassall, 1841) (additional source)
Amathia vidovici (Heller, 1867) (additional source)
Ampithoe valida S.I. Smith, 1873 (additional source)
Anadara ovalis (Bruguière, 1789) accepted as Lunarca ovalis (Bruguière, 1789) (basis of record)
Anguinella palmata Van Beneden, 1845 (additional source)
Balanus amphitrite Darwin, 1854 accepted as Amphibalanus amphitrite (Darwin, 1854) (additional source)
Balanus eburneus Gould, 1841 accepted as Amphibalanus eburneus (Gould, 1841) (additional source)
Balanus improvisus Darwin, 1854 accepted as Amphibalanus improvisus (Darwin, 1854) (additional source)
Barentsia laxa Kirkpatrick, 1890 (basis of record)
Bougainvillia rugosa Clarke, 1882 (additional source)
Bugula fulva Ryland, 1960 accepted as Bugulina fulva (Ryland, 1960) (additional source)
Bugula simplex Hincks, 1886 accepted as Bugulina simplex (Hincks, 1886) (additional source)
Busycotypus canaliculatus (Linnaeus, 1758) (basis of record)
Callinectes sapidus Rathbun, 1896 (additional source)
Caprella equilibra Say, 1818 (additional source)
Cerapus tubularis Say, 1817 (basis of record)
Chthamalus fragilis Darwin, 1854 (basis of record)
Clymenella torquata (Leidy, 1855) (additional source)
Conopeum tenuissimum (Canu, 1908) (basis of record)
Cryptosula pallasiana (Moll, 1803) (additional source)
Diadumene leucolena (Verrill, 1866) (additional source)
Dosima fascicularis (Ellis & Solander, 1786) (additional source)
Dynamena cornicina McCrady, 1859 accepted as Dynamena disticha (Bosc, 1802) (additional source)
Enchytraeus albidus Henle, 1837 (additional source)
Endeis spinosa (Montagu, 1808) (additional source)
Eucheilota ventricularis McCrady, 1859 (additional source)
Eudendrium carneum Clarke, 1882 (additional source)
Eurypanopeus depressus (Smith, 1869) (basis of record)
Farfantepenaeus aztecus (Ives, 1891) accepted as Penaeus aztecus Ives, 1891 (basis of record)
Garveia franciscana (Torrey, 1902) accepted as Calyptospadix cerulea Clarke, 1882 (additional source)
Gonionemus vertens A. Agassiz, 1862 (additional source)
Haliplanella lineata (Verrill, 1869) accepted as Diadumene lineata (Verrill, 1869) (additional source)
Hydroides dianthus (Verrill, 1873) (additional source)
Laomedea calceolifera (Hincks, 1871) (additional source)
Libinia dubia H. Milne Edwards, 1834 (additional source)
Limulus polyphemus (Linnaeus, 1758) (additional source)
Lineus sanguineus (Rathke, 1799) (additional source)
Loimia medusa (Savigny, 1822) (additional source)
Lygia exotica Roux, 1828 accepted as Ligia (Megaligia) exotica Roux, 1828 (additional source)
Marphysa sanguinea (Montagu, 1813) (additional source)
Mnemiopsis leidyi A. Agassiz, 1865 (additional source)
Mytilopsis leucophaeata (Conrad, 1831) (additional source)
Nematostella vectensis Stephenson, 1935 (additional source)
Nephtys ciliata (Müller, 1788) (additional source)
Obelia bidentata Clark, 1875 (additional source)
Pelia mutica (Gibbes, 1850) (basis of record)
Pennaria disticha Goldfuss, 1820 (additional source)
Physalia physalis (Linnaeus, 1758) (additional source)
Podarkeopsis Laubier, 1961 (additional source)
Polydora ligni Webster, 1879 accepted as Polydora cornuta Bosc, 1802 (additional source)
Rangia cuneata (G. B. Sowerby I, 1832) (basis of record)
Scruparia ambigua (d'Orbigny, 1841) (additional source)
Streblospio benedicti Webster, 1879 (additional source)
Tanystylum orbiculare Wilson, 1878 (additional source)
Upogebia affinis (Say, 1818) (basis of record)
Victorella pavida Saville-Kent, 1870 (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)