Aeolidida accepted as Aeolidioidea Gray, 1827 (basis of record)
Aeolidiidae Gray, 1827 (basis of record)
Anculinae Pruvot-Fol, 1954 (basis of record)
Aplysiidae Lamarck, 1809 (additional source)
Arminidae Iredale & O'Donoghue, 1923 (1841) (basis of record)
Bistolidini C. P. Meyer, 2003 (basis of record)
Bullidae Gray, 1827 (source of synonymy)
Caenogastropoda (basis of record)
Calyptraeidae Lamarck, 1809 (basis of record)
Calyptraeoidea Lamarck, 1809 (basis of record)
Carinariidae Blainville, 1818 (additional source)
Cephalaspidea (basis of record)
Cerithiidae J. Fleming, 1822 (basis of record)
Cerithiinae J. Fleming, 1822 (basis of record)
Cerithioidea J. Fleming, 1822 (additional source)
Clathurellidae H. Adams & A. Adams, 1858 (additional source)
Cocculinidae Dall, 1882 (basis of record)
Cocculinoidea Dall, 1882 (basis of record)
Cochliopidae Tryon, 1866 (basis of record)
Conidae J. Fleming, 1822 (basis of record)
Conoidea J. Fleming, 1822 (basis of record)
Coralliophilinae Chenu, 1859 (basis of record)
Corambidae Bergh, 1871 (basis of record)
Cuthonidae Odhner, 1934 (basis of record)
Cylichnidae H. Adams & A. Adams, 1854 (basis of record)
Cypraeidae Rafinesque, 1815 (basis of record)
Cypraeinae Rafinesque, 1815 (basis of record)
Cypraeini Rafinesque, 1815 (basis of record)
Dendrodorididae O'Donoghue, 1924 (1864) (basis of record)
Dialidae Kay, 1979 (basis of record)
Diaphanoidea Odhner, 1914 (1857) accepted as Cylichnoidea H. Adams & A. Adams, 1854 (basis of record)
Discodorididae Bergh, 1891 (basis of record)
Doridoidea Rafinesque, 1815 (basis of record)
Doridoidei (basis of record)
Epitoniidae S. S. Berry, 1910 (1812) (additional source)
Epitonioidea S. S. Berry, 1910 (1812) (basis of record)
Erroneini Schilder, 1927 (basis of record)
Euctenidiacea accepted as Doridina (basis of record)
Eulimidae R. A. Philippi, 1853 (basis of record)
Eulimoidea R. A. Philippi, 1853 accepted as Vanikoroidea Gray, 1840 (basis of record)
Eupulmonata (basis of record)
Facelinidae Bergh, 1889 (additional source)
Ferussaciidae Bourguignat, 1883 (basis of record)
Fionidae Gray, 1857 (additional source)
Fionoidea Gray, 1857 (basis of record)
Flabellinidae Bergh, 1889 (basis of record)
Flabellinoidea Bergh, 1889 accepted as Fionoidea Gray, 1857 (basis of record)
Gastropoda (basis of record)
Goniodorididae H. Adams & A. Adams, 1854 (basis of record)
Haliotidae Rafinesque, 1815 (basis of record)
Haliotoidea Rafinesque, 1815 (basis of record)
Haminoeoidea Pilsbry, 1895 (basis of record)
Helicidae Rafinesque, 1815 (basis of record)
Hygromiidae Tryon, 1866 (basis of record)
Hygrophila (basis of record)
Lepetellidae Dall, 1882 (basis of record)
Lepetellinae Dall, 1882 accepted as Lepetellidae Dall, 1882 (basis of record)
Lepetelloidea Dall, 1882 (basis of record)
Limacidae Batsch, 1789 (basis of record)
Limapontioidea Gray, 1847 accepted as Plakobranchoidea Gray, 1840 (basis of record)
Litiopidae Gray, 1847 (basis of record)
Littorinidae Children, 1834 (basis of record)
Littorinimorpha (basis of record)
Littorinoidea Children, 1834 (basis of record)
Lottiidae Gray, 1840 (additional source)
Lottiinae Gray, 1840 (basis of record)
Lottiini Gray, 1840 (basis of record)
Lottioidea Gray, 1840 (basis of record)
Lymnaeidae Rafinesque, 1815 (basis of record)
Marginellinae J. Fleming, 1828 (basis of record)
Metaxiinae B. A. Marshall, 1977 (basis of record)
Murchisonellidae T. L. Casey, 1904 (basis of record)
Muricoidea Rafinesque, 1815 (basis of record)
Myrrhinidae Bergh, 1905 (basis of record)
Naticidae Guilding, 1834 (basis of record)
Naticinae Guilding, 1834 (basis of record)
Naticoidea Guilding, 1834 (additional source)
Neritinae Rafinesque, 1815 (basis of record)
Neritininae Poey, 1852 (basis of record)
Nudipleura (basis of record)
Onchidorididae Gray, 1827 (basis of record)
Onchidoridoidea Gray, 1827 (basis of record)
Orthurethra accepted as Pupilloidei (basis of record)
Oxynoacea accepted as Oxynooidea Stoliczka, 1868 (1847) (basis of record)
Patellidae Rafinesque, 1815 (basis of record)
Patelloidea Rafinesque, 1815 (basis of record)
Patelloidini Chapman & Gabriel, 1923 (basis of record)
Philinidae Gray, 1850 (1815) (basis of record)
Philinoidea Gray, 1850 (1815) (basis of record)
Phyllidioidea Rafinesque, 1814 (basis of record)
Physidae Fitzinger, 1833 (basis of record)
Plakobranchidae Gray, 1840 (basis of record)
Plakobranchoidea Gray, 1840 (basis of record)
Planaxinae J. E. Gray, 1850 (basis of record)
Planorbidae Rafinesque, 1815 (additional source)
Pleurobranchaeidae Pilsbry, 1896 (basis of record)
Pleurobranchidae Gray, 1827 (additional source)
Pleurobranchomorpha accepted as Pleurobranchida (status source)
Polyceridae Alder & Hancock, 1845 (basis of record)
Polycerinae Alder & Hancock, 1845 (basis of record)