Oxyrhombus bocourti (J.C.H. Crosse& P.H. Fischer, 1869) Trinidad and Tobago
Microalcadia boeckeleri (I. Richling, 2001) Costa Rica, Manzanillo2 mm
Helicina boettgeri A.J. Wagner, 1910 Brazil, Espirito Santo6 mm
Fadyenia boissieriana E. Chitty, 1857 Jamaica
Olygyra borealis E.C. Von Martens, 1890 Durango, Mexico
Stoastomops boriqueni H.B. Baker, 1941 Puerto Rico
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 Jamaica
Helicina brasiliensis J.E. Gray, 1824 Brazil10 mm
Orobophana brazieri (W.H. Pease, 1870)
Pleuropoma brecanrio J. Stanisic, 2010 Australia, Dalrymple
Emoda briarea (F. Poey, 1851) Cuba24 mm
Fadyenia bridgesiana E. Chitty, 1857 Jamaica
Alcadia brownii (J.E. Gray, 1824) Jamaica16 mm
Alcadia brownii palliata (C.B. Adams, 1849) Jamaica
Helicina cacaguelita H.A. Pilsbry& W.F. Clapp, 1902
Emoda caledoniensis W.J. Clench& E.R. Jacobson, 1971 Cuba
Hendersonia calida (C.D. Weinland, 1862) Bahamas7 mm
Troschelviana callosa (F. Poey, 1854) Cuba
Alcadia camagueyana C.G. Aguayo & M.L. Jaume,1957 Cuba
Helicina candida L. Pfeiffer, 1858 Turks & Caicos8 mm
Ogasawarana capsula (H.A. Pilsbry, 1902) Japan, Ogasawara Islands
Helicina caracola (S. Moricand, 1836) Brazil, Bahia20,5 mm
Helicina carinata D'Orbigny, 1835 Brazil, Goias
Ceratopoma caroli W. Kobelt Philippines
Sturanya carolinarum (O.F. von Möllendorff,1900)
Fadyenia carpenteriana E. Chitty, 1857 Jamaica
Poenia caymanensis H.A. Pilsbry, 1930 Caymans
Helicina charmosyne H.A. Pilsbry, 1933
Ogasawarana chichijimana H. Minato, 1980 Japan, Ogasawara Islands
Helicina chionea H.A. Pilsbry, 1949 Peru, Junin6 mm
Gemma chiquitica (I. Richling, 2001) Costa Rica4,8 mm
Fadyenia chittyana (C.B. Adams, 1849) Jamaica