Akeridae Mazzarelli, 1891 (basis of record)
Anaspidea accepted as Aplysiida (basis of record)
Archidorididae Bergh, 1891 accepted as Dorididae Rafinesque, 1815 (basis of record)
Arctica Schumacher, 1817 (additional source)
Arcticoidea R. B. Newton, 1891 (1844) (basis of record)
Astarte J. Sowerby, 1816 (additional source)
Astartidae A. d'Orbigny, 1844 (1840) (basis of record)
Astartoidea A. d'Orbigny, 1844 accepted as Crassatelloidea A. Férussac, 1822 (basis of record)
Boreochiton G. O. Sars, 1878 (basis of record)
Buccininae Rafinesque, 1815 (basis of record)
Chlamys Röding, 1798 (additional source)
Cingula J. Fleming, 1818 (additional source)
Dorididae Rafinesque, 1815 (basis of record)
Gonatus Gray, 1849 (additional source)
Hedylopsidae Odhner, 1952 (basis of record)
Heteranomia Winckworth, 1922 (additional source)
Ischnochitonidae Dall, 1889 (basis of record)
Lepeta Gray, 1842 (additional source)
Lepetidae Gray, 1850 (basis of record)
Lepidopleurida (basis of record)
Limea Bronn, 1831 (additional source)
Limida (basis of record)
Lottiidae Gray, 1840 (basis of record)
Menestho Møller, 1842 (additional source)
Micromenia Leloup, 1948 (additional source)
Modiolula Sacco, 1898 (additional source)
Modiolus Lamarck, 1799 (additional source)
Montacuta W. Turton, 1822 (additional source)
Mya Linnaeus, 1758 (additional source)
Naticoidea Guilding, 1834 (basis of record)
Neomenia Tullberg, 1875 (additional source)
Obtusella Cossmann, 1921 (additional source)
Odostomiinae Pelseneer, 1928 (basis of record)
Palio Gray, 1857 (basis of record)
Panomya Gray, 1857 (additional source)
Pecten O. F. Müller, 1776 (additional source)
Peringia Paladilhe, 1874 (source of synonymy)
Portlandia Mörch, 1857 (additional source)
Rossia Owen, 1835 (additional source)
Simrothiella Pilsbry, 1898 (additional source)
Skenea J. Fleming, 1825 (additional source)
Skeneopsidae Iredale, 1915 (basis of record)
Skeneopsis Iredale, 1915 (additional source)
Tapetinae J. E. Gray, 1851 (basis of record)
Tonicella P. P. Carpenter, 1873 (additional source)
Tridonta Schumacher, 1817 (additional source)
Turtonia Alder, 1848 (additional source)
Venerida (basis of record)
Veneridae Rafinesque, 1815 (basis of record)

English ancillas for Ancilla Lamarck, 1799
English olive shells for Oliva Bruguière, 1789
English rock shells for Thais Röding, 1798