Mirapex acus (R.J. Shuttleworth, 1852)
Spiraxis adamsianus L. Pfeiffer, 1852
Proameria albersi (L. Pfeiffer, 1854)
Poiretia algira (J.G. Bruguière, 1792)
Proameria alticola (H.A. Pilsbry, 1903)
Euglandina altispira W.K. Weyrauch, 1960
Rectaxis alvaradoi (C. Goodrich& H. Van Der Schalie, 1937)
Shuttleworthia ambigua (L. Pfeiffer, 1856)
Singleya anomala (G.F. Angas, 1879)
Euglandina apolinari H.A. Pilsbry, 1935
Shuttleworthia arborea H.B. Baker, 1941
Versutaxis arctatus (H.B. Baker, 1940)
Pseudosubulina arcuata (H.B. Baker, 1939)
Guillarmodia arthritica (F.G. Thompson, 1995)
Laeviglandina aurantiaca (G.F. Angas, 1879)
Euglandina aurata (P.M.A. Morelet, 1849)
Euglandina bailyi M. Smith, 1950
Euglandina balesi (H.A. Pilsbry, 1938)
Streptostyla bartschi (W.H. Dall, 1908)
Pseudosubulina berendti (L. Pfeiffer, 1862)
Pittieria bicolor E.C. Von Martens, 1901
Streptostyla biconica L. Pfeiffer, 1856
Euglandina binneyana (L. Pfeiffer, 1845)
Streptostyla binneyana J.C.H. Crosse& P.H. Fischer, 1869
Spiraxis blandi (J.C.H. Crosse, 1873)
Volutaxis blandiana (H.A. Pilsbry, 1909)
Euglandina bogotensis (E.M. Da Costa, 1793)
Pseudosubulina borealis (H.A. Pilsbry, 1903)
Streptostylella botteriana (J.C.H. Crosse& P.H. Fischer, 1869)
Streptostyla boyeriana J.C.H. Crosse& P.H. Fischer, 1869
Guillarmodia brachystyla (F.G. Thompson, 1995)
Spiraxis brevis (C.B. Adams, 1850)
Laeviglandina broctontomlini (H.A. Pilsbry, 1926)
Salasiella browni (H.A. Pilsbry, 1916)
Volutaxis cacahuamilpensis (Herrera, 1891)