Hemimarginula biangulata (G.B. III Sowerby, 1901)
Emarginula bicancellata R.P. Montrouzier, 1860
Zeidora bigelowi I. Pérez Farfante, 1947
Montfortia bikiniensis H.S. Ladd, 1966
Cranopsis billsae (I. Pérez Farfante, 1947)
Fissurellidea bimaculata W.H. Dall, 1871
Rimula blainvilli (FOSSIL) J.L.M. Defrance, 1827 †
Diodora bollonsi (W.R.B. Oliver, 1915)
Diodora bombayana G.B. II Sowerby, 1862
Emarginula bonfittoi C. Smriglio & P. Mariottini,2001
Profundisepta borroi (I. Pérez Farfante, 1947)
Fissurella bravensis F. Salvat, 1967
Emarginula brebioni (FOSSIL) B.M. Landau, L. Ceulemans& F. Van Dingenen, 2016 †
Scutus breviculus (H.M.D. de Blainville,1817)
Montfortula brevirimata (G.P. Deshayes, 1862)
Fissurella bridgesii L.A. Reeve, 1849
Scutus britannum (FOSSIL) (Vasseur, 1881 †)
Puncturella brychia R.B. Watson, 1883
Zeidora calceolina A. Adams, 1860
Rimula californiana S.S. Berry, 1964
Lucapinella callomarginata (W.H. Dall, 1872)
Diodora caloosaensis (FOSSIL) W.H. Dall, 1892 †
Diodora calyculata (G.B. I Sowerby, 1823)
Emarginula camilla J.C. Melvill & R. Standen,1903
Lucapinella canalifera (G. Nevill & H. Nevill,1869)
Diodora canariensis J. Verstraeten & F. Nolf,2007
Diodora candida (G.B. I Sowerby, 1835)
Emarginula candida A. Adams, 1852
Cranopsis canopa L.R.L. Simone & C.M. Cunha,2014
Puncturella capensis K.H.J. Thiele, 1919
Diodora carditella (FOSSIL) W.H. Dall, 1892 †
Tugali carinata (C.B. Adams, 1852)
Cranopsis carinifera (M.M. Schepman, 1908)
Diodora carolinensis (FOSSIL) (T.A. Conrad, 1875 †)
Puncturella caryophylla W.H. Dall, 1914