Acanthodoris pilosa (Abildgaard, 1789) (additional source)
Alvania areolata (W. Stimpson, 1851) accepted as Tachyrhynchus reticulatus (Mighels & C. B. Adams, 1842) (additional source)
Alvania exarata (W. Stimpson, 1851) accepted as Onoba exarata (W. Stimpson, 1851) accepted as Onoba mighelsii (W. Stimpson, 1851) (additional source)
Anomia aculeata O. F. Müller, 1776 accepted as Heteranomia squamula (Linnaeus, 1758) (additional source)
Anomia simplex A. d'Orbigny, 1853 (additional source)
Aporrhais occidentalis (H. Beck, 1836) accepted as Arrhoges occidentalis (H. Beck, 1836) (additional source)
Astarte borealis (Schumacher, 1817) accepted as Tridonta borealis Schumacher, 1817 (additional source)
Astarte castanea (Say, 1822) accepted as Isocrassina castanea (Say, 1822) (additional source)
Astarte quadrans A. Gould, 1841 (additional source)
Astarte undata A. Gould, 1841 (additional source)
Astyris rosacea (A. Gould, 1840) (additional source)
Boreocingula castanea (Møller, 1842) (additional source)
Boreotrophon clathratus (Linnaeus, 1767) (additional source)
Boreotrophon truncatus (Strøm, 1768) (additional source)
Buccinum tottenii W. Stimpson, 1865 (additional source)
Chaetoderma canadense Nierstrasz, 1902 (basis of record)
Clinocardium ciliatum (O. Fabricius, 1780) accepted as Ciliatocardium ciliatum ciliatum (O. Fabricius, 1780) represented as Ciliatocardium ciliatum (O. Fabricius, 1780) (additional source)
Colus pubescens (A. E. Verrill, 1882) (additional source)
Colus pygmaeus (A. Gould, 1841) (additional source)
Crenella glandula (Totten, 1834) accepted as Solamen glandula (Totten, 1834) (additional source)
Crucibulum striatum (Say, 1826) (additional source)
Cuspidaria glacialis (G. O. Sars, 1878) (additional source)
Epitonium greenlandicum (Perry, 1811) accepted as Boreoscala greenlandica (Perry, 1811) (additional source)
Flabellina pellucida (Alder & Hancock, 1843) accepted as Carronella pellucida (Alder & Hancock, 1843) (additional source)
Flabellina verrucosa (M. Sars, 1829) accepted as Coryphella verrucosa (M. Sars, 1829) (additional source)
Hanleya mendicaria (Mighels & C. B. Adams, 1842) accepted as Hanleya hanleyi (W. Bean, 1844) (additional source)
Ischnochiton ruber (Linnaeus, 1767) accepted as Boreochiton ruber (Linnaeus, 1767) (additional source)
Lamellidoris fusca (O. F. Müller, 1776) accepted as Onchidoris bilamellata (Linnaeus, 1767) (additional source)
Lepidopleurus cancellatus (G. B. Sowerby II, 1840) accepted as Leptochiton cancellatus (G. B. Sowerby II, 1840) (additional source)
Lyonsia arenosa (Møller, 1842) (additional source)
Lyonsia hyalina (Conrad, 1831) (additional source)
Mitrella dissimilis (W. Stimpson, 1851) accepted as Astyris lunata (Say, 1826) (basis of record)
Mitrella lunata (Say, 1826) accepted as Astyris lunata (Say, 1826) (additional source)
Neptunea lyrata decemcostata (Say, 1826) accepted as Neptunea decemcostata (Say, 1826) (additional source)
Oenopota bicarinata (Couthouy, 1838) accepted as Curtitoma violacea (Mighels & C. B. Adams, 1842) (additional source)
Oenopota pyramidalis (Strøm, 1788) (additional source)
Oenopota turricula (Montagu, 1803) accepted as Propebela turricula (Montagu, 1803) (additional source)
Onchidoris aspera (Alder & Hancock, 1842) accepted as Onchidoris muricata (O. F. Müller, 1776) (additional source)
Onoba aculeus (A. Gould, 1841) (additional source)
Onoba pelagica (W. Stimpson, 1851) accepted as Frigidoalvania carinata (Mighels & C. B. Adams, 1842) (basis of record)
Periploma leanum (Conrad, 1831) accepted as Cochlodesma leanum (Conrad, 1831) (additional source)
Pitar morrhuanus (Dall, 1902) accepted as Agriopoma morrhuanum (Dall, 1902) (additional source)
Placopecten magellanicus (Gmelin, 1791) (additional source)
Polinices heros (Say, 1822) accepted as Euspira heros (Say, 1822) (additional source)
Polycera dubia M. Sars, 1829 accepted as Palio dubia (M. Sars, 1829) (additional source)
Pyramidella fusca (C. B. Adams, 1839) accepted as Sayella fusca (C. B. Adams, 1839) (additional source)
Tellina agilis W. Stimpson, 1858 accepted as Ameritella agilis (W. Stimpson, 1858) (additional source)
Thracia septentrionalis Jeffreys, 1872 (additional source)
Thyasira gouldii (R. A. Philippi, 1845) (additional source)
Trichotropis conica Møller, 1842 accepted as Ariadnaria conica (Møller, 1842) (additional source)
Turbonilla bushiana A. E. Verrill, 1882 (additional source)
Velutina laevigata (O. F. Müller, 1777) accepted as Velutina velutina (O. F. Müller, 1776) (additional source)
Yoldia myalis (Couthouy, 1838) (additional source)
Yoldia sapotilla (A. Gould, 1841) (additional source)
Yoldia thraciaeformis (Storer, 1838) accepted as Megayoldia thraciaeformis (Storer, 1838) (additional source)