Acanthodoris pilosa (Abildgaard in Müller, 1789) (additional source)
Alvania areolata (Stimpson, 1851) accepted as Tachyrhynchus reticulatus (Mighels & C. B. Adams, 1842) (additional source)
Alvania exarata (Stimpson, 1851) accepted as Onoba exarata (Stimpson, 1851) accepted as Onoba mighelsii (Stimpson, 1851) (additional source)
Anomia aculeata Müller O.F., 1776 accepted as Heteranomia squamula (Linnaeus, 1758) (additional source)
Anomia simplex d'Orbigny, 1853 (additional source)
Aporrhais occidentalis (Beck, 1836) represented as Arrhoges occidentalis (Beck, 1836) (additional source)
Astarte borealis (Schumacher, 1817) (additional source)
Astarte castanea (Say, 1822) (additional source)
Astarte quadrans Gould, 1841 (additional source)
Astarte subaequilatera G. B. Sowerby II, 1854 (additional source)
Astarte undata Gould, 1841 (additional source)
Astyris rosacea (Gould, 1840) (additional source)
Boreocingula castanea (Møller, 1842) (additional source)
Boreotrophon clathratus (Linnaeus, 1767) (additional source)
Boreotrophon truncatus (Strøm, 1768) (additional source)
Buccinum totteni Stimpson, 1865 (additional source)
Buccinum undatum Linnaeus, 1758 (additional source)
Cadlina laevis (Linnaeus, 1767) (additional source)
Chaetoderma canadense Nierstrasz, 1902 (basis of record)
Chlamys islandica (O. F. Müller, 1776) (additional source)
Clinocardium ciliatum (Fabricius, 1780) accepted as Ciliatocardium ciliatum ciliatum (Fabricius, 1780) represented as Ciliatocardium ciliatum (Fabricius, 1780) (additional source)
Colus pubescens (A. E. Verrill, 1882) (additional source)
Colus pygmaeus (Gould, 1841) (additional source)
Crenella glandula (Totten, 1834) accepted as Solamen glandula (Totten, 1834) (additional source)
Crucibulum striatum (Say, 1826) (additional source)
Cuspidaria glacialis (Sars G. O., 1878) (additional source)
Cuthona concinna (Alder & Hancock, 1843) accepted as Cuthonella concinna (Alder & Hancock, 1843) (additional source)
Cyrtodaria siliqua (Spengler, 1793) (additional source)
Epitonium greenlandicum (Perry, 1811) accepted as Boreoscala greenlandica (Perry, 1811) (additional source)
Eubranchus exiguus (Alder & Hancock, 1848) (additional source)
Euspira triseriata (Say, 1826) (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 (Bean, 1844) (additional source)
Hiatella arctica (Linnaeus, 1767) (additional source)
Hiatella striata (Fleuriau de Bellevue, 1802) accepted as Hiatella arctica (Linnaeus, 1767) (additional source)
Ischnochiton ruber (Linnaeus, 1767) accepted as Boreochiton ruber (Linnaeus, 1767) (additional source)
Lacuna pallidula (da Costa, 1778) (additional source)
Lacuna vincta (Montagu, 1803) (additional source)
Lamellidoris fusca (Muller, 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 (Stimpson, 1851) accepted as Astyris lunata (Say, 1826) (basis of record)
Mitrella lunata (Say, 1826) accepted as Astyris lunata (Say, 1826) (additional source)
Mya truncata Linnaeus, 1758 (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 (Gould, 1841) (additional source)
Onoba pelagica (Stimpson, 1851) accepted as Frigidoalvania pelagica (Stimpson, 1851) (basis of record)
Periploma leanum (Conrad, 1831) (additional source)
Pitar morrhuanus (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 Stimpson, 1857 accepted as Ameritella agilis (Stimpson, 1857) (additional source)
Thracia septentrionalis Jeffreys, 1872 (additional source)
Thyasira gouldi (Philippi, 1845) (additional source)
Trichotropis conica Møller, 1842 (additional source)
Turbonilla bushiana A. E. Verrill, 1882 (additional source)
Turtonia minuta (Fabricius, 1780) (additional source)
Velutina laevigata (O. F. Müller, 1777) accepted as Velutina velutina (O. F. Müller, 1776) (additional source)
Yoldia limatula (Say, 1831) (additional source)
Yoldia myalis (Couthouy, 1838) (additional source)
Yoldia sapotilla (Gould, 1841) (additional source)
Yoldia thraciaeformis (Storer, 1838) accepted as Megayoldia thraciaeformis (Storer, 1838) (additional source)