Abra longicallus americana A. E. Verrill & K. J. Bush, 1898 accepted as Abra americana A. E. Verrill & K. J. Bush, 1898 (basis of record)
Acanthodoris pilosa (Abildgaard, 1789) (additional source)
Aclis acuta (Jeffreys, 1884) accepted as Parastilbe acuta (Jeffreys, 1884) (basis of record)
Actinotrophon actinophorus (Dall, 1889) (basis of record)
Adalaria proxima (Alder & Hancock, 1854) (additional source)
Admete couthouyi (J. C. Jay, 1839) accepted as Admete viridula (O. Fabricius, 1780) (additional source)
Alvania dinora Bartsch, 1917 accepted as Onoba mighelsii (W. Stimpson, 1851) (basis of record)
Alvania wyvillethomsoni (Friele, 1877) accepted as Punctulum wyvillethomsoni (Friele, 1877) (additional source)
Anadara transversa (Say, 1822) (basis of record)
Ancula gibbosa (Risso, 1818) (additional source)
Anomia squamula Linnaeus, 1758 accepted as Heteranomia squamula (Linnaeus, 1758) (basis of record)
Aplysia morio (A. E. Verrill, 1901) (basis of record)
Aplysia willcoxi Heilprin, 1887 accepted as Aplysia fasciata Poiret, 1789 (basis of record)
Arctica islandica (Linnaeus, 1767) (additional source)
Astarte borealis (Schumacher, 1817) accepted as Tridonta borealis Schumacher, 1817 (additional source)
Astarte crenata (J. E. Gray, 1824) (additional source)
Astarte montagui (Dillwyn, 1817) accepted as Tridonta montagui (Dillwyn, 1817) (additional source)
Axinodon symmetros (Jeffreys, 1876) accepted as Kelliola symmetros (Jeffreys, 1876) (additional source)
Axinulus cycladius (S. V. Wood, 1848) (basis of record)
Brevinucula verrillii (Dall, 1886) (additional source)
Buccinum tenebrosum Hancock, 1846 accepted as Buccinum cyaneum Bruguière, 1789 (basis of record)
Buccinum undatum Linnaeus, 1758 (additional source)
Bulbus smithii T. Brown, 1839 (additional source)
Cadlina laevis (Linnaeus, 1767) (additional source)
Capulus ungaricus (Linnaeus, 1758) (additional source)
Cardiomya striata (Jeffreys, 1876) (additional source)
Cavolinia gibbosa (A. d'Orbigny, 1835) (additional source)
Cavolinia inflexa (Lesueur, 1813) (additional source)
Cavolinia longirostris (Blainville, 1821) accepted as Diacavolinia longirostris (Blainville, 1821) (basis of record)
Cerithiopsis costulatus (Møller, 1842) accepted as Eumetula arctica (Mörch, 1857) (basis of record)
Chlamys islandica (O. F. Müller, 1776) (additional source)
Cingula moerchii Collin, 1886 accepted as Alvania moerchii (Collin, 1886) (basis of record)
Clinocardium ciliatum (O. Fabricius, 1780) accepted as Ciliatocardium ciliatum ciliatum (O. Fabricius, 1780) represented as Ciliatocardium ciliatum (O. Fabricius, 1780) (basis of record)
Clio recurva (Children, 1823) (basis of record)
Clione limacina (Phipps, 1774) (additional source)
Colus pygmaeus (A. Gould, 1841) (basis of record)
Colus sabini (J. E. Gray, 1824) (additional source)
Crenilabium exile (Jeffreys, 1870) (additional source)
Crepidula fornicata (Linnaeus, 1758) (additional source)
Creseis acicula (Rang, 1828) (additional source)
Cuspidaria glacialis (G. O. Sars, 1878) (additional source)
Cuspidaria lamellosa (G. O. Sars, 1878) (additional source)
Cuspidaria parva A. E. Verrill & K. J. Bush, 1898 (additional source)
Cuspidaria undata (A. E. Verrill, 1884) (basis of record)
Cuspidaria ventricosa A. E. Verrill & K. J. Bush, 1898 (additional source)
Cuthona concinna (Alder & Hancock, 1843) accepted as Cuthonella concinna (Alder & Hancock, 1843) (additional source)
Dentalium (Antalis) entale stimpsoni J. B. Henderson, 1920 accepted as Antalis entalis (Linnaeus, 1758) (additional source)
Doto coronata (Gmelin, 1791) (additional source)
Ennucula tenuis (Montagu, 1808) (additional source)
Epitonium dallianum (A. E. Verrill & S. Smith, 1880) (additional source)
Epitonium greenlandicum (Perry, 1811) accepted as Boreoscala greenlandica (Perry, 1811) (additional source)
Eubranchus pallidus (Alder & Hancock, 1842) accepted as Amphorina pallida (Alder & Hancock, 1842) (additional source)
Eubranchus tricolor Forbes, 1838 (additional source)
Eudolium crosseanum (Monterosato, 1869) (basis of record)
Flabellina gracilis (Alder & Hancock, 1844) accepted as Microchlamylla gracilis (Alder & Hancock, 1844) accepted as Coryphella gracilis (Alder & Hancock, 1844) (basis of record)
Flabellina pellucida (Alder & Hancock, 1843) accepted as Carronella pellucida (Alder & Hancock, 1843) (additional source)
Flabellina salmonacea (Couthouy, 1838) accepted as Ziminella salmonacea (Couthouy, 1838) (basis of record)
Flabellina verrucosa (M. Sars, 1829) accepted as Coryphella verrucosa (M. Sars, 1829) (additional source)
Graneledone verrucosa (A. E. Verrill, 1881) (basis of record)
Halicardia flexuosa (A. E. Verrill & S. Smith, 1881) (basis of record)
Hanleya dalli Kaas, 1957 accepted as Hanleya hanleyi (W. Bean, 1844) (additional source)
Hyalopecten undatus (A. E. Verrill & S. Smith, 1885) accepted as Hyalopecten pudicus (E. A. Smith, 1885) (basis of record)
Lacuna carinata A. Gould, 1848 accepted as Lacuna vincta (Montagu, 1803) (basis of record)
Lacuna pallidula (da Costa, 1778) (additional source)
Lacuna parva (da Costa, 1778) (additional source)
Lacuna vincta (Montagu, 1803) (additional source)
Lepeta caeca (O. F. Müller, 1776) (additional source)
Lepidopleurus cancellatus (G. B. Sowerby II, 1840) accepted as Leptochiton cancellatus (G. B. Sowerby II, 1840) (additional source)
Leptaxinus incrassatus (Jeffreys, 1876) (basis of record)
Limacina inflata (A. d'Orbigny, 1835) accepted as Heliconoides inflatus (A. d'Orbigny, 1835) (additional source)
Limacina lesueurii (A. d'Orbigny, 1836) (additional source)
Limacina trochiformis (A. d'Orbigny, 1835) (additional source)
Limopsis pelagica E. A. Smith, 1885 accepted as Limopsis tenella Jeffreys, 1876 (basis of record)
Limopsis tenella Jeffreys, 1876 (basis of record)
Lyonsia arenosa (Møller, 1842) (additional source)
Lyonsiella gemma A. E. Verrill, 1880 accepted as Policordia gemma (A. E. Verrill, 1880) (basis of record)
Lyonsiella subquadrata (Jeffreys, 1882) (additional source)
Macoma balthica (Linnaeus, 1758) (additional source)
Macoma calcarea (Gmelin, 1791) (additional source)
Malletia abyssorum A. E. Verrill & K. J. Bush, 1898 accepted as Clencharia abyssorum (A. E. Verrill & K. J. Bush, 1898) (basis of record)
Malletia obtusa (G. O. Sars, 1872) accepted as Malletia pianii (van Aartsen & Giannuzzi-Savelli, 1991) (additional source)
Margarites costalis (A. Gould, 1841) (additional source)
Marsenina glabra (Couthouy, 1838) (additional source)
Melanella intermedia (Cantraine, 1835) accepted as Melanella polita (Linnaeus, 1758) (basis of record)
Montacuta dawsoni Jeffreys, 1864 accepted as Altenaeum dawsoni (Jeffreys, 1864) (additional source)
Montacuta percompressa Dall, 1899 accepted as Austrodevonia percompressa (Dall, 1899) (basis of record)
Mya arenaria Linnaeus, 1758 (additional source)
Mya truncata Linnaeus, 1758 (additional source)
Mysella ovata (Jeffreys, 1881) accepted as Kurtiella ovata (Jeffreys, 1881) (additional source)
Mytilus edulis Linnaeus, 1758 (additional source)
Nucula atacellana Schenck, 1939 (additional source)
Nucula delphinodonta Mighels & C. B. Adams, 1842 accepted as Ennucula delphinodonta (Mighels & C. B. Adams, 1842) (basis of record)
Octopus defilippi Vérany, 1851 accepted as Macrotritopus defilippi (Vérany, 1851) (additional source)
Ocythoe tuberculata Rafinesque, 1814 (additional source)
Oenopota bicarinata (Couthouy, 1838) accepted as Curtitoma violacea (Mighels & C. B. Adams, 1842) (additional source)
Oenopota pyramidalis (Strøm, 1788) (additional source)
Omalogyra atomus (R. A. Philippi, 1841) (additional source)
Ostrea equestris Say, 1834 (basis of record)
Ovatella myosotis (Draparnaud, 1801) accepted as Myosotella myosotis (Draparnaud, 1801) (additional source)
Palliolum undatum (A. E. Verrill & S. Smith, 1885) accepted as Hyalopecten pudicus (E. A. Smith, 1885) (basis of record)

East Coast of United States of America for Crepidula fornicata (Linnaeus, 1758)