"Lower Heterobranchia" (basis of record)
Aclididae G. O. Sars, 1878 accepted as Eulimidae R. A. Philippi, 1853 (source of synonymy)
Acochlidiimorpha (basis of record)
Acochlidioidea Küthe, 1935 (basis of record)
Acteonidae A. d'Orbigny, 1842 (basis of record)
Acteonimorpha (basis of record)
Aegiridae P. Fischer, 1883 (basis of record)
Aeolidioidea Gray, 1827 (basis of record)
Akeroidea Mazzarelli, 1891 (basis of record)
Aldisidae Odhner, 1939 accepted as Cadlinidae Bergh, 1891 (basis of record)
Aplysiida (basis of record)
Aplysioidea Lamarck, 1809 (basis of record)
Archaeogastropoda accepted as Vetigastropoda (status source)
Architaenioglossa (additional source)
Architectonicidae J. E. Gray, 1850 (basis of record)
Architectonicoidea J. E. Gray, 1850 (basis of record)
Arionidae Gray, 1840 (basis of record)
Arionoidei (basis of record)
Arminoidea Iredale & O'Donoghue, 1923 (1841) (basis of record)
Asthelysinae B. A. Marshall, 1991 (basis of record)
Ataphridae Cossmann, 1915 † (status source)
Atlantidae Rang, 1829 (basis of record)
Babyloniidae Kuroda, Habe & Oyama, 1971 (basis of record)
Bathysciadiidae Dautzenberg & H. Fischer, 1900 (additional source)
Belomitridae Kantor, Puillandre, Rivasseau & Bouchet, 2012 (status source)
Buccinoidea Rafinesque, 1815 (additional source)
Bulloidea Gray, 1827 (basis of record)
Bursidae Thiele, 1925 (basis of record)
Caecidae J. E. Gray, 1850 (basis of record)
Calliostomatidae Thiele, 1924 (1847) (basis of record)
Cancellariidae Forbes & Hanley, 1851 (status source)
Cavoliniidae J. E. Gray, 1850 (1815) (basis of record)
Cerithiopsidae H. Adams & A. Adams, 1853 (basis of record)
Cernuellini Schileyko, 1991 (basis of record)
Chilodontaidae Wenz, 1938 (basis of record)
Chromodorididae Bergh, 1891 (basis of record)
Chromodoridinae Bergh, 1891 (basis of record)
Chromodoridoidea Bergh, 1891 (basis of record)
Cimidae Warén, 1993 (basis of record)
Cimoidea Warén, 1993 (basis of record)
Cladobranchia (status source)
Cliidae Jeffreys, 1869 (additional source)
Cocculinida (status source)
Colloniidae Cossmann, 1917 (additional source)
Columbellidae Swainson, 1840 (status source)
Cornirostridae Ponder, 1990 (basis of record)
Creseidae Rampal, 1973 (basis of record)
Cycloneritida (basis of record)
Cyclostrematidae P. Fischer, 1885 accepted as Liotiidae Gray, 1850 (source of synonymy)
Cymatiidae Iredale, 1913 (taxonomy source)
Cypraeoidea Rafinesque, 1815 (additional source)
Dendronotidae Allman, 1845 (basis of record)
Dendronotoidea Allman, 1845 (basis of record)
Diodorinae Odhner, 1932 (basis of record)
Doridina (basis of record)
Ellobiida (basis of record)
Ellobiidae L. Pfeiffer, 1854 (1822) (basis of record)
Ellobioidea L. Pfeiffer, 1854 (1822) (basis of record)
Emarginulinae Children, 1834 (basis of record)
Eratoidae Gill, 1871 (status source)
Ergalataxinae Kuroda, Habe & Oyama, 1971 (basis of record)
Erosariinae Schilder, 1924 (basis of record)
Eucyclidae Koken, 1896 (basis of record)
Eudaroniidae Gründel, 2004 (basis of record)
Euthecosomata (basis of record)
Euthyneura (basis of record)
Fasciolariidae Gray, 1853 (additional source)
Favorininae Bergh, 1889 (basis of record)
Fissurellidae J. Fleming, 1822 (basis of record)
Fissurellinae J. Fleming, 1822 (basis of record)
Fissurelloidea J. Fleming, 1822 (basis of record)
Fluxinellini B. A. Marshall, 1991 (basis of record)
Fossarinae A. Adams, 1860 (basis of record)
Geomitridae C. R. Boettger, 1909 (basis of record)
Graphididae J. Barros, Mello, F. Barros, S. Lima, Santos, Cabral & Padovan, 2003 accepted as Cimidae Warén, 1993 (source of synonymy)
Gymnosomata (basis of record)
Helicellinae Ihering, 1909 (basis of record)
Helicellini Ihering, 1909 (basis of record)
Helicoidea Rafinesque, 1815 (basis of record)
Helicoidei (basis of record)
Hermaeidae H. Adams & A. Adams, 1854 (basis of record)
Heterobranchia (additional source)
Heterobranchia (basis of record)
Hydrobiidae W. Stimpson, 1865 (basis of record)
Lamellariinae A. d'Orbigny, 1841 (status source)
Limacidae Batsch, 1789 (additional source)
Limacinae Batsch, 1789 (additional source)
Limacinidae Gray, 1840 (basis of record)
Limacinoidea Gray, 1840 (basis of record)
Limacoidea Batsch, 1789 (basis of record)
Limacoidei (basis of record)
Lymnaeoidea Rafinesque, 1815 (basis of record)
Madrellidae Preston, 1911 (basis of record)
Mangeliidae P. Fischer, 1883 (status source)
Margaritidae Thiele, 1924 (basis of record)
Mathildoidea Dall, 1889 (basis of record)
Metaxia Monterosato, 1884 (subsequent type designation)
Mitroidea Swainson, 1831 (basis of record)
Moelleriinae Hickman & J. H. McLean, 1990 (additional source)
Murchisonelloidea T. L. Casey, 1904 (basis of record)