Abyssochrysidae Tomlin, 1927 (basis of record)
Abyssochrysoidea Tomlin, 1927 (basis of record)
Aclididae G. O. Sars, 1878 accepted as Eulimidae R. A. Philippi, 1853 (basis of record)
Acmaeidae Forbes, 1850 (basis of record)
Acteonoidea A. d'Orbigny, 1842 (basis of record)
Addisoniidae Dall, 1882 (basis of record)
Addisoniinae Dall, 1882 (basis of record)
Admetinae Troschel, 1865 (status source)
Aeolidida accepted as Aeolidioidea Gray, 1827 (basis of record)
Akeridae Mazzarelli, 1891 (additional source)
Anatomidae J. H. McLean, 1989 (basis of record)
Aporrhaidae J. E. Gray, 1850 (additional source)
Arminidae Iredale & O'Donoghue, 1923 (1841) (basis of record)
Barleeiidae J. E. Gray, 1857 (basis of record)
Bathydorididae Bergh, 1891 (additional source)
Bathydoridoidea Bergh, 1891 (basis of record)
Bullidae Gray, 1827 (source of synonymy)
Cadlinidae Bergh, 1891 (basis of record)
Caecinae J. E. Gray, 1850 (basis of record)
Caenogastropoda (basis of record)
Calliostomatinae Thiele, 1924 (1847) (basis of record)
Calyptraeidae Lamarck, 1809 (basis of record)
Calyptraeoidea Lamarck, 1809 (basis of record)
Cancellariinae Forbes & Hanley, 1851 (basis of record)
Cancellarioidea Forbes & Hanley, 1851 accepted as Volutoidea Rafinesque, 1815 (additional source)
Capulidae J. Fleming, 1822 (additional source)
Carinariidae Blainville, 1818 (additional source)
Cassidae Latreille, 1825 (basis of record)
Cavolinioidea J. E. Gray, 1850 (1815) (basis of record)
Cephalaspidea (basis of record)
Cerithiidae J. Fleming, 1822 (basis of record)
Cerithiinae J. Fleming, 1822 (basis of record)
Cerithioidea J. Fleming, 1822 (additional source)
Charcotiidae Odhner, 1926 accepted as Curnonidae d'Udekem d'Acoz, 2017 (basis of record)
Chilodontidae Wenz, 1938 accepted as Chilodontaidae Wenz, 1938 (additional source)
Choristellinae Bouchet & Warén, 1979 accepted as Choristellidae Bouchet & Warén, 1979 (basis of record)
Cingulopsoidea Fretter & Patil, 1958 (basis of record)
Clathurellidae H. Adams & A. Adams, 1858 (additional source)
Clavatulidae J. E. Gray, 1853 (basis of record)
Clionidae Rafinesque, 1815 (basis of record)
Clionoidea Rafinesque, 1815 (basis of record)
Cocculinidae Dall, 1882 (basis of record)
Cocculinoidea Dall, 1882 (basis of record)
Cochlespiridae A. W. B. Powell, 1942 (basis of record)
Conidae J. Fleming, 1822 (basis of record)
Conoidea J. Fleming, 1822 (basis of record)
Conorbidae De Gregorio, 1880 (additional source)
Coralliophilinae Chenu, 1859 (basis of record)
Cuthonidae Odhner, 1934 (basis of record)
Cylichnidae H. Adams & A. Adams, 1854 (basis of record)
Cymatiinae Iredale, 1913 (1854) accepted as Cymatiidae Iredale, 1913 (additional source)
Cymbiinae H. Adams & A. Adams, 1853 (1847) (additional source)
Cymbuliidae Gray, 1840 (basis of record)
Cymbuliinae Gray, 1840 (basis of record)
Cymbulioidea Gray, 1840 (basis of record)
Cypraeidae Rafinesque, 1815 (basis of record)
Cypraeinae Rafinesque, 1815 (basis of record)
Diaphanidae Odhner, 1914 (1857) (basis of record)
Diaphaninae Odhner, 1914 (1857) (basis of record)
Diaphanoidea Odhner, 1914 (1857) accepted as Cylichnoidea H. Adams & A. Adams, 1854 (basis of record)
Diastomatidae Cossmann, 1894 (basis of record)
Discodorididae Bergh, 1891 (basis of record)
Dorididae Rafinesque, 1815 (additional source)
Doridoidea Rafinesque, 1815 (basis of record)
Doridoidei (basis of record)
Doridoxidae Bergh, 1899 (basis of record)
Doridoxoidea Bergh, 1899 (basis of record)
Drilliidae Olsson, 1964 (basis of record)
Eatoniellidae Ponder, 1965 (basis of record)
Elachisinidae Ponder, 1985 (basis of record)
Epitoniidae S. S. Berry, 1910 (1812) (additional source)
Epitonioidea S. S. Berry, 1910 (1812) (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)
Eumetulinae A. N. Golikov & Starobogatov, 1975 (basis of record)
Eupulmonata (basis of record)
Ficidae Meek, 1864 (1840) (basis of record)
Ficoidea Meek, 1864 (1840) (basis of record)
Fionidae Gray, 1857 (additional source)
Fionoidea Gray, 1857 (basis of record)
Flabellinoidea Bergh, 1889 accepted as Fionoidea Gray, 1857 (basis of record)
Gastropoda (basis of record)
Glebinae van der Spoel, 1976 (basis of record)
Globisininae A. W. B. Powell, 1933 (basis of record)
Gnathodoridacea accepted as Bathydoridoidei (basis of record)
Granulininae G. A. Coovert & H. K. Coovert, 1995 accepted as Granulinidae G. A. Coovert & H. K. Coovert, 1995 (basis of record)
Haminoeoidea Pilsbry, 1895 (basis of record)
Helicidae Rafinesque, 1815 (basis of record)
Helicopeltinae B. A. Marshall, 1996 (basis of record)
Heterodorididae A. E. Verrill & Emerton, 1882 (basis of record)
Iravadiidae Thiele, 1928 (basis of record)
Janthinidae Lamarck, 1822 accepted as Epitoniidae S. S. Berry, 1910 (1812) (additional source)
Laeocochlidinae A. N. Golikov & Starobogatov, 1987 (basis of record)
Laevilitorininae D. Reid, 1989 (basis of record)
Laubierinidae Warén & Bouchet, 1990 (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)
Lepetidae Gray, 1850 (additional source)

 Classification

 for Cocculinida

Established as suborder containing the superfamilies Cocculinoidea and Lepetelloidea by Haszprunar (1987). ... [details]

 Classification

 for Euarminida

Wägele & Willan (2000) concluded that the Arminoida as classically understood (containing Arminidae, ... [details]

 Classification

 for Neolepetopsidae J. H. McLean, 1990

The distinctiveness of the radula, which seems to have been the main reason for a superfamily level for this group ... [details]

 Classification

 for Neolepetopsoidea J. H. McLean, 1990

The distinctiveness of the radula, which seems to have been the main reason for a superfamily level for this group ... [details]

 Classification

 for Vermetidae Rafinesque, 1815

The position of the Vermetidae has been controversial. However, sperm ultrastructure (Healy, 1988) and molecular ... [details]

 Nomenclature

 for Chlamydephorus W. G. Binney, 1879

Chlamydephorus H.O. Lenz, 1831 was suggested as a grammatically more correct name for Chlamyphorus Harlan, 1825 ... [details]

 Nomenclature

 for Runcinacea

Originally introduced by Colosi (1915) as Runcinidea, a "section" [above family level] of Tectibranchia containing ... [details]

 Spelling

 for Acochlidiimorpha

Spelling emended to (order) Acochlidioidea by Rankin (1979: 83); to Acochlidiomorpha by Salvini-Plawen (1983: 309); ... [details]

 Spelling

 for Plakobranchidae Gray, 1840

Original spelling Placobranchidae, based on Placobranchus, an incorrect subsequent spelling by Férussac (1824) in ... [details]

 Taxonomy

 for Thalassocyon Barnard, 1960

Riedel (1995) elevated this genus to a family level (Thalassocyonidae), a vision not supported in Verhaeghe & Poppe ... [details]