Aaadonta Solem, 1976 (basis of record)
Abbadia Bourguignat, 1883 accepted as Macroptychia O. Boettger, 1877 (basis of record)
Abbottella (Abbottella) J. B. Henderson & Bartsch, 1920 represented as Abbottella J. B. Henderson & Bartsch, 1920 (basis of record)
Abbottella (Gundlachtudora) de la Torre & Bartsch, 1941 accepted as Tudora (Gundlachtudora) de la Torre & Bartsch, 1941 represented as Tudora Gray, 1850 (basis of record)
Abchasohela Hudec & Lezhawa, 1971 (basis of record)
Aberdaria Blume, 1965 accepted as Primigulella Pilsbry, 1919 (basis of record)
Acantharion E. Binder & Tillier, 1985 (basis of record)
Acanthennea E. von Martens, 1898 (basis of record)
Acavella Jousseaume, 1894 accepted as Oligospira Ancey, 1887 (basis of record)
Acavus Montfort, 1810 (basis of record)
Acera Albers, 1850 accepted as Holospira E. von Martens, 1860 (basis of record)
Achatina (Achatina) Lamarck, 1799 represented as Achatina Lamarck, 1799 (basis of record)
Achatina (Euaethiopina) Bequaert, 1950 accepted as Lissachatina Bequaert, 1950 (basis of record)
Achatina (Lissachatina) Bequaert, 1950 accepted as Lissachatina Bequaert, 1950 (basis of record)
Achatina (Pintoa) Bourguignat, 1890 represented as Achatina Lamarck, 1799 (basis of record)
Achatina (Tripachatina) Bourguignat, 1890 represented as Achatina Lamarck, 1799 (basis of record)
Achatininae Swainson, 1840 (basis of record)
Achatinini Swainson, 1840 (basis of record)
Achatium Link, 1807 accepted as Achatina Lamarck, 1799 (basis of record)
Acheronopa Hyman & J. Stanisic, 2005 (basis of record)
Acicula W. Hartmann, 1821 (basis of record)
Aciculina Westerlund, 1887 accepted as Cecilioides A. Férussac, 1814 (basis of record)
Acinolaemus F. G. Thompson & Upatham, 1997 (basis of record)
Acme W. Hartmann, 1821 accepted as Acicula W. Hartmann, 1821 (basis of record)
Acrocoptis C. de la Torre & Bartsch, 1972 (basis of record)
Acrophaedusa O. Boettger, 1877 accepted as Stigmatica O. Boettger, 1877 (basis of record)
Acroptychia Crosse & P. Fischer, 1877 (basis of record)
Acrostylus Clench, 1935 accepted as Malaitella Clench, 1941 accepted as Placocharis Pilsbry, 1900 accepted as Eumecostylus E. von Martens, 1860 (basis of record)
Acrotoma O. Boettger, 1881 (basis of record)
Acrotoma (Acrotoma) O. Boettger, 1881 represented as Acrotoma O. Boettger, 1881 (basis of record)
Acrotoma (Acrotomina) H. Nordsieck, 1977 represented as Acrotoma O. Boettger, 1881 (basis of record)
Acrotoma (Bzybia) H. Nordsieck, 1977 accepted as Acrotoma (Acrotoma) O. Boettger, 1881 represented as Acrotoma O. Boettger, 1881 (basis of record)
Acrotoma (Castelliana) Suvorov, 2002 accepted as Acrotoma O. Boettger, 1881 (basis of record)
Acrotomini H. Nordsieck, 1979 (basis of record)
Actinella R. T. Lowe, 1852 (basis of record)
Actinella (Actinella) R. T. Lowe, 1852 represented as Actinella R. T. Lowe, 1852 (basis of record)
Actinella (Hispidella) R. T. Lowe, 1852 represented as Actinella R. T. Lowe, 1852 (basis of record)
Actinella (Plebecula) R. T. Lowe, 1852 accepted as Plebecula R. T. Lowe, 1852 (basis of record)
Acusta E. von Martens, 1860 (basis of record)
Acutidens Pilsbry, 1956 accepted as Linisa Pilsbry, 1930 (basis of record)
Adamsiella (Adamsiellops) J. B. Henderson & Bartsch, 1920 represented as Adamsiella L. Pfeiffer, 1851 (basis of record)
Adelodonta Ancey, 1880 accepted as Polygyrella Bland, 1869 (basis of record)
Adriaca Westerlund, 1884 accepted as Delima (Semirugata) O. Boettger, 1877 represented as Delima W. Hartmann, 1842 (basis of record)
Adversaria Lindholm, 1925 accepted as Synprosphyma (Excussispira) Lindholm, 1925 represented as Excussispira Lindholm, 1925 (basis of record)
Aega Hartman, 1881 accepted as Samoana (Marquesana) Pilsbry, 1909 represented as Samoana Pilsbry, 1909 (basis of record)
Aegista Albers, 1850 (basis of record)
Aequinoctia Lindholm, 1925 accepted as Macroptychia O. Boettger, 1877 (basis of record)
Aerope E. von Martens, 1860 accepted as Natalina Pilsbry, 1893 (basis of record)
Aetholitis J. Stanisic, 2010 (basis of record)
Aferulus E. von Martens, 1897 accepted as Maizania Bourguignat, 1890 (basis of record)
Africarion Godwin-Austen, 1883 (basis of record)
Afristreptaxis Thiele, 1932 (basis of record)
Afroconulus Van Mol & van Bruggen, 1971 (basis of record)
Afroditropis Bequaert & Clench, 1936 (basis of record)
Afrodonta Melvill & Ponsonby, 1908 (basis of record)
Afroguppya de Winter & van Bruggen, 1992 (basis of record)
Afropunctum F. Haas, 1934 (basis of record)
Afrorhytida Möllendorff, 1902 (basis of record)
Agalma Albers, 1860 accepted as Polydontes Montfort, 1810 (basis of record)
Agathina J. B. Férussac, 1807 accepted as Achatina Lamarck, 1799 (basis of record)
Agathylla H. Adams & A. Adams, 1855 (basis of record)
Agathylla (Agathylla) H. Adams & A. Adams, 1855 represented as Agathylla H. Adams & A. Adams, 1855 (basis of record)
Agiosspeleikos A. Reischütz & P. L. Reischütz, 2003 accepted as Tsoukatosia E. Gittenberger, 2000 (basis of record)
Aglaja Albers, 1850 accepted as Lysinoe H. Adams & A. Adams, 1855 (basis of record)
Agriolimacinae H. Wagner, 1935 (basis of record)
Agriolimax Mörch, 1865 accepted as Deroceras Rafinesque, 1820 (basis of record)
Aillya Odhner, 1927 (basis of record)
Aillyidae H. B. Baker, 1955 (basis of record)
Ainohelix Kuroda & Taki, 1933 (basis of record)
Akramovskiella Schileyko, 1984 (basis of record)
Akramowskia H. Nordsieck, 1975 (basis of record)
Alabastrina Kobelt, 1904 accepted as Loxana Pallary, 1899 (basis of record)
Alabastrina (Alabastrina) Kobelt, 1904 represented as Alabastrina Kobelt, 1904 accepted as Loxana Pallary, 1899 (basis of record)
Alabastrina (Guilia) Pallary, 1926 represented as Alabastrina Kobelt, 1904 accepted as Loxana Pallary, 1899 (basis of record)
Alabastrina (Lechatelieria) Pallary, 1926 represented as Alabastrina Kobelt, 1904 accepted as Loxana Pallary, 1899 (basis of record)
Alabastrina (Loxana) Pallary, 1899 accepted as Loxana Pallary, 1899 (basis of record)
Alabastrina (Michaudia) Pallary, 1926 represented as Alabastrina Kobelt, 1904 accepted as Loxana Pallary, 1899 (basis of record)
Alabastrina (Siretia) Pallary, 1926 represented as Alabastrina Kobelt, 1904 accepted as Loxana Pallary, 1899 (basis of record)
Albanica O. Boettger, 1878 accepted as Delima W. Hartmann, 1842 (basis of record)
Albanodelima A. J. Wagner, 1924 accepted as Montenegrina O. Boettger, 1877 (basis of record)
Albersia H. Adams, 1865 (basis of record)
Albinaria (Albinaria) Vest, 1867 represented as Albinaria Vest, 1867 (basis of record)
Albinaria (Cathariella) Lindholm, 1925 represented as Albinaria Vest, 1867 (basis of record)
Albinaria (Cerigana) O. Boettger, 1878 represented as Albinaria Vest, 1867 (basis of record)
Albinaria (Cretica) O. Boettger, 1878 represented as Albinaria Vest, 1867 (basis of record)
Albinaria (Egana) O. Boettger, 1878 represented as Albinaria Vest, 1867 (basis of record)
Albinaria (Graeca) O. Boettger, 1877 represented as Albinaria Vest, 1867 (basis of record)
Albinaria (Graja) O. Boettger, 1878 represented as Albinaria Vest, 1867 (basis of record)
Albinaria (Laconica) O. Boettger, 1878 represented as Albinaria Vest, 1867 (basis of record)
Albinaria (Mirabellina) O. Boettger, 1878 represented as Albinaria Vest, 1867 (basis of record)
Alcadia J. E. Gray, 1840 (basis of record)
Alcadia (Alcadia) J. E. Gray, 1840 represented as Alcadia J. E. Gray, 1840 (basis of record)
Alcadia (Glyptalcadia) Boss & Jacobson, 1973 represented as Alcadia J. E. Gray, 1840 (basis of record)
Alcadia (Hjalmarsona) H. B. Baker, 1940 represented as Alcadia J. E. Gray, 1840 (basis of record)
Alcadia (Idesa) H. Adams & A. Adams, 1856 represented as Alcadia J. E. Gray, 1840 (basis of record)
Alcadia (Penisoltia) H. B. Baker, 1954 represented as Alcadia J. E. Gray, 1840 (basis of record)
Alcidia Bourguignat, 1890 accepted as Streptaxis J. E. Gray, 1837 (basis of record)
Aleatelix Iredale, 1941 accepted as Sulcobasis Tapparone Canefri, 1883 (source of synonymy)
Alinda H. Adams & A. Adams, 1855 (basis of record)
Alinda (Alinda) H. Adams & A. Adams, 1855 represented as Alinda H. Adams & A. Adams, 1855 (basis of record)