Negulus abyssinicus (E.C. Von Martens, 1869)
Negulus acanthinula (C.M.F. Ancey, 1892)
Columella acicularis S.K. Almuhambetova, 1979
Truncatellina adami A.C. van Bruggen, 1994
Negulus admodesta (J.W. Mighels, 1845)
Vertigo alabamensis W.F. Clapp, 1915
Columella alexandri C.M. Cooke & H.A. Pilsbry,1906
Truncatellina algoviana Colling & Karle-Fendt,2016
Nesopupa alloia C.M. Cooke & H.A. Pilsbry,1920
Vertigo allyniana S.S. Berry, 1919
Vertigo alpestris J. Alder, 1838
Lyropupa anceyana C.M. Cooke & H.A. Pilsbry,1920
Vertigo andrusiana H.A. Pilsbry, 1899
Vertigo angulifera (FOSSIL) Boettger, 1884 †
Vertigo angustior J.G. Jeffreys, 1830
Metasterkia antillensis H.A. Pilsbry, 1920
Lyropupa antiqua C.M. Cooke & H.A. Pilsbry,1920
Vertigo antivertigo J.P.R. Draparnaud, 1801
Truncatellina arboricola P. Tattersfield, 1995
Truncatellina arcyensis M. Klemm, 1943
Vertigo arthuri E.C. Von Martens, 1882
Vertigo arthuri hubrichti H.A. Pilsbry, 1934
Vertigo arthuri paradoxa V. Sterki, 1900
Truncatellina asirensis B. Hausdorf & T. Wronski,2011
Columella aspera H.W. Waldén, 1966
Truncatellina atomus (R.J. Shuttleworth, 1852)
Truncatellina ayubiana B.M. Pokryszko, K. Auffenberg, J.C. Hlavác& F. Naggs, 2009
Truncatellina babusarica B.M. Pokryszko, K. Auffenberg, J.C. Hlavác& F. Naggs, 2009
Nesopupa bacca (W.H. Pease, 1871)
Ptychopatula bailyi H.A. Pilsbry, 1934
Metasterkia bakeri H.A. Pilsbry, 1921
Nesopupa baldwini C.M.F. Ancey, 1904
Nesopupa barrackporensis (G.P.L.K. Gude, 1914)
Truncatellina beckmanni J. Quintana, 2010
Vertigo berryi H.A. Pilsbry, 1919