Chondropoma asymmetricum H.A. Pilsbry, 1933
Chondrothyra atristoma C. de la Torre & P. Bartsch,1938
Annularops attenuata (C. de la Torre& P. Bartsch, 1941)
Chondropoma auberianum (A.V.M.D. D'Orbigny,1842)
Parachondria augustae (C.B. Adams, 1849)
Parachondria augustae rufilabris (C.B. Adams, 1849)
Tudora aurantia (W. Wood, 1828)
Annularisca auricoma (J. Gundlachin L. Pfeiffer, 1859)
Troschelvindex auriflexum C.G. Aguayo, 1953
Parachondria avena (C.B. Adams, 1849)
Parachondria avena fraterminor H.A. Pilsbry & A.P. Brown,1910
Opisthosiphon bacillum C. de la Torre & P. Bartsch,1941
Opisthosiphon bahamiense (R.J. Shuttleworth, 1865)
Chondropoma bairense C. de la Torre & P. Bartsch,1938
Tropidophora balfouri (H.H. Godwin-Austen,1881)
Tropidophora balteatum (G.B. Sowerby, 1873)
Opisthosiphon banaoense C. de la Torre& J. Henderson, 1921
Wrightudora banensis C.G. Aguayo, 1944
Colobostylus banksianus (G.B. I Sowerby, 1843)
Chondrothyretes barbouri C. de la Torre & P. Bartsch,1938
Troschelvindex barbouri (C. de la Torre& P. Bartsch, 1941)
Tropidophora barclayana L. Pfeiffer, 1851
Parachondria barklyana (E. Chitty, 1853)
Chondropoma basicarinatum (L. Pfeiffer, 1855)
Tropidophora bathiei E. Fischer-Piette, 1949
Chondropoma beatensis W.J. Clench, 1932
Troschelvindex bebini (R. Arango, 1865)
Tropidophora belairi (S.A.A. Petit De La Saussaye, 1853)
Chondropometes bellissimum C. de la Torre & P. Bartsch,1938
Chondropometes bellum Torré
Tropidophora bemaraensis E. Fischer-Piette, 1949
Cubadamsiella beneitoi R. Fernández-Garcés, J. Espinosa& J.A. Ortea, 2003
Georgia bentiana J.C. Melvill, 1895
Lithidion bentii E.A. Smith, 1897
Bermudezia bermudezi (C. de la Torre& P. Bartsch, 1941)