Oxyrhombus bocourti (J.C.H. Crosse& P.H. Fischer, 1869)
Microalcadia boeckeleri (I. Richling, 2001)
Helicina boettgeri A.J. Wagner, 1910
Fadyenia boissieriana E. Chitty, 1857
Olygyra borealis E.C. Von Martens, 1890
Stoastomops boriqueni H.B. Baker, 1941
Geophorus bothropoma (O.F. von Möllendorff,1895)
Helicina bourailensis W.D. Hartman, 1889
Helicina bourguignatiana C.M.F. Ancey, 1892
Fadyenia bowerbankiana E. Chitty, 1857
Helicina brasiliensis J.E. Gray, 1824
Orobophana brazieri (W.H. Pease, 1870)
Pleuropoma brecanrio J. Stanisic, 2010
Emoda briarea (F. Poey, 1851)
Fadyenia bridgesiana E. Chitty, 1857
Alcadia brownii (J.E. Gray, 1824)
Alcadia brownii palliata (C.B. Adams, 1849)
Helicina cacaguelita H.A. Pilsbry & W.F. Clapp,1902
Emoda caledoniensis W.J. Clench & E.R. Jacobson,1971
Hendersonia calida (C.D. Weinland, 1862)
Troschelviana callosa (F. Poey, 1854)
Alcadia camagueyana C.G. Aguayo & M.L. Jaume,1957
Helicina candida L. Pfeiffer, 1858
Ogasawarana capsula (H.A. Pilsbry, 1902)
Helicina caracola (S. Moricand, 1836)
Helicina carinata D'Orbigny, 1835
Ceratopoma caroli W. Kobelt
Sturanya carolinarum (O.F. von Möllendorff,1900)
Fadyenia carpenteriana E. Chitty, 1857
Poenia caymanensis H.A. Pilsbry, 1930
Helicina charmosyne H.A. Pilsbry, 1933
Ogasawarana chichijimana H. Minato, 1980
Helicina chionea H.A. Pilsbry, 1949
Gemma chiquitica (I. Richling, 2001)
Fadyenia chittyana (C.B. Adams, 1849)