Elimia acuta (C.S. Rafinesque, 1831)
Goniobasis adusta (I. Lea, 1831)
Goniobasis aequalis (S.S. Haldeman, 1841)
Elimia alabamensis I. Lea, 1861
Anculosa aldrichi H.H. Smith in C. Goodrich,1922
Pleurocera alveare T.A. Conrad, 1834
Holandriana amblya (J.R. Bourguignat, 1884)
Goniobasis amoena I. Lea, 1862
Leptoxis ampla J.G. Anthony, 1854
Goniobasis angulata (J.G. Anthony, 1854)
Elimia annae E.L. Mihalcik& F.G. Thompson, 2002
Elimia annettae C. Goodrich, 1941
Pleurocera annulifera T.A. Conrad, 1834
Lithasia anthonyi (J.H. Redfield, 1854)
Goniobasis apaca Unknown
Goniobasis arachnoides (J.G. Anthony, 1854)
Anculosa arkansensis A. Hinkley, 1915
Lithasia armigera (T. Say, 1821)
Goniobasis athearni W.J. Clench & H. Turner,1956
Goniobasis attenuata (FOSSIL) Sowerby in Fitton, 1836 †
Pleurocera attenuata I. Lea
Gyrotoma babylonicum I. Lea, 1845
Goniobasis bairdiana I. Lea, 1862
Anculosa bellacrenata S.S. Haldeman, 1841
Elimia bellula (I. Lea, 1861)
Anculosa bentoniensis I. Lea, 1862
Holandriana berlani (J.R. Bourguignat, 1884)
Holandriana bourguignati (A. Letourneux, 1879)
Elimia boykiniana (I. Lea, 1840)
Elimia brevis L.A. Reeve, 1860
Anculosa brevispira H.H. Smith in C. Goodrich,1922
Elimia broccata F.G. Thompson, 2000
Pleurocera brumbyi I. Lea, 1852
Lithasia bubala R.L. Minton, 2013
Elimia buffyae E.L. Mihalcik& F.G. Thompson, 2002