Aequorea aequorea (Forsskål, 1775) accepted as Aequorea forskalea Péron & Lesueur, 1810 (additional source)
Alcyonidium hirsutum (Fleming, 1828) (additional source)
Amaroucium constellatum Verrill, 1871 accepted as Aplidium constellatum (Verrill, 1871) (basis of record)
Amphiporus angulatus (Müller, 1774) (additional source)
Anoplodactylus lentus Wilson, 1878 (basis of record)
Astarte undata A. Gould, 1841 (additional source)
Aurelia aurita (Linnaeus, 1758) (additional source)
Balanus balanoides (Linnaeus, 1767) accepted as Semibalanus balanoides (Linnaeus, 1767) (additional source)
Balanus eburneus Gould, 1841 accepted as Amphibalanus eburneus (Gould, 1841) (additional source)
Beroe cucumis Fabricius, 1780 (additional source)
Bolinopsis infundibulum (O.F. Müller, 1776) (additional source)
Botryllus schlosseri (Pallas, 1766) (additional source)
Bowerbankia gracilis Leidy, 1855 accepted as Amathia gracilis (Leidy, 1855) (additional source)
Caberea ellisii (Fleming, 1814) (additional source)
Callinectes sapidus Rathbun, 1896 (additional source)
Catablema vesicarium (A. Agassiz, 1862) (additional source)
Cerebratulus lacteus (Leidy, 1851) (additional source)
Chiridota laevis (O. Fabricius, 1780) (additional source)
Ciona intestinalis (Linnaeus, 1767) (additional source)
Cliona celata Grant, 1826 (additional source)
Cryptosula pallasiana (Moll, 1803) (additional source)
Cucumaria frondosa (Gunnerus, 1767) (additional source)
Cyanea capillata (Linnaeus, 1758) (additional source)
Dendrobeania murrayana (Bean in Johnston, 1847) (additional source)
Dendrodoa carnea (Agassiz, 1850) (additional source)
Didemnum albidum (Verrill, 1871) (additional source)
Dynamena pumila (Linnaeus, 1758) (additional source)
Electra pilosa (Linnaeus, 1767) accepted as Electra pilosa (Linnaeus, 1761) (additional source)
Eudendrium ramosum Van Beneden, 1844 accepted as Bougainvillia muscus (Allman, 1863) (additional source)
Eunephthya rubiformis (Ehrenberg, 1834) accepted as Gersemia rubiformis (Ehrenberg, 1834) (additional source)
Gonionemus vertens A. Agassiz, 1862 (additional source)
Halecium halecium (Linnaeus, 1758) accepted as Halecium halecinum (Linnaeus, 1758) (additional source)
Halichondria panicea (Pallas, 1766) represented as Halichondria (Halichondria) panicea (Pallas, 1766) (additional source)
Haliclona (Haliclona) oculata (Linnaeus, 1759) (additional source)
Haliclona permollis (Bowerbank, 1866) accepted as Haliclona (Reniera) cinerea (Grant, 1826) (additional source)
Halisarca dujardinii Johnston, 1842 (additional source)
Halocynthia pyriformis (Rathke, 1806) (additional source)
Henricia sanguinolenta (O.F. Müller, 1776) (additional source)
Homarus americanus H. Milne Edwards, 1837 (additional source)
Hybocodon pendulus (L. Agassiz, 1862) accepted as Corymorpha pendula L. Agassiz, 1862 (additional source)
Idotea balthica (Pallas, 1772) (additional source)
Isodictya palmata (Ellis & Solander, 1786) (additional source)
Leptosynapta inhaerens (O.F. Müller, 1776) (additional source)
Limulus polyphemus (Linnaeus, 1758) (additional source)
Lucernaria quadricornis O. F. Müller, 1776 (additional source)
Melicertum octocostatum (M. Sars, 1835) (additional source)
Microciona prolifera (Ellis & Solander, 1786) accepted as Clathria (Clathria) prolifera (Ellis & Solander, 1786) (basis of record)
Molgula citrina Alder & Hancock, 1848 (additional source)
Nereis pelagica Linnaeus, 1758 (additional source)
Nuculana tenuisulcata (Couthouy, 1838) (additional source)
Obelia geniculata (Linnaeus, 1758) (additional source)
Pectinaria gouldi (Verrill, 1873) accepted as Pectinaria gouldii (Verrill, 1873) (additional source)
Pedicellina cernua (Pallas, 1774) (additional source)
Petricola pholadiformis Lamarck, 1818 accepted as Petricolaria pholadiformis (Lamarck, 1818) (additional source)
Phoxichilidium femoratum (Rathke, 1799) (additional source)
Pleurobrachia pileus (O. F. Müller, 1776) (additional source)
Polymastia robusta Bowerbank, 1862 accepted as Polymastia boletiformis (Lamarck, 1815) (additional source)
Portunus (Portunus) sayi (Gibbes, 1850) accepted as Portunus sayi (Gibbes, 1850) (additional source)
Potamilla reniformis (Bruguière, 1789) accepted as Pseudopotamilla reniformis (Bruguière, 1789) (additional source)
Psolus fabricii (Düben & Koren, 1846) (additional source)
Salpa fusiformis Cuvier, 1804 (additional source)
Schizoporella unicornis (Johnston in Wood, 1844) (additional source)
Scypha ciliata (Fabricius, 1780) accepted as Sycon ciliatum (Fabricius, 1780) (additional source)
Sertularia argentea Linnaeus, 1758 (additional source)
Siliqua costata (Say, 1822) (additional source)
Spisula solidissima (Dillwyn, 1817) (additional source)
Staurophora mertensii Brandt, 1835 accepted as Staurostoma mertensii (Brandt, 1835) (additional source)
Talorchestia megalophthalma (Spence Bate, 1863) accepted as Americorchestia megalophthalma (Spence Bate, 1863) (basis of record)
Tanystylum orbiculare Wilson, 1878 (additional source)
Terebratulina septentrionalis (Couthouy, 1838) (additional source)
Tima formosa L. Agassiz, 1862 (additional source)
Tonicella marmorea (O. Fabricius, 1780) (additional source)