Mitra astensis (FOSSIL) L.M.D. Bellardi, 1850 †
Ziba astyagis (W.L.H. Dohrn, 1860)
Mitra atava (FOSSIL) L.M.D. Bellardi, 1887 †
Nebularia atjehensis C.H. Oostingh, 1939
Ziba attenuata (W.J. Broderip, 1836)
Nebularia aurantia (J.F. Gmelin, 1791)
Nebularia aurantia limbifera (J.B.P.A. Lamarck, 1811)
Nebularia aurantia nanus L.A. Reeve, 1844
Mitra auriculoides L.A. Reeve, 1845
Mitra aurora W.L.H. Dohrn, 1861
Mitra aurora floridula G.B. II Sowerby, 1874
Nebularia avenacea L.A. Reeve, 1845
Mitraria awadi (FOSSIL) Abbass, 1967 †
Ziba bacillum (J.B.P.A. Lamarck, 1811)
Mitra badia L.A. Reeve, 1844
Neocancilla baeri H. Turner& W.O. Cernohorsky, 2003
Mitra baerorum G.T. Poppe & S.P. Tagaro,2010
Subcancilla baisei G.T. Poppe, S.P. Tagaro& R. Salisbury, 2009
Ziba bantamensis (C.H. Oostingh, 1939)
Mitra barbadensis (J.F. Gmelin, 1791)
Mitra barbadensis saotomensis V. Félix-Alves& D. Fernandez, 1989
Mitra barbadensis striatula (J.S. Schröter, 1804)
Charitodoron barbara (K.H.J. Thiele, 1925)
Mitra barbieri G.T. Poppe & S.P. Tagaro,2006
Scabricola barrywilsoni (J.M. Cate, 1968)
Mitra basteroti (FOSSIL) C. Mayer, 1891 †
Mitra belcheri R.B. Hinds, 1843
Strigatella bellula A. Adams, 1853
Subcancilla bellulavaria A.M. Dekkers, M. Herrmann, G.T. Poppe& S.P. Tagaro, 2014
Mitra berlineri (FOSSIL) C.J. Maury, 1917 †
Strigatella bernayi (FOSSIL) (A.E.M. Cossmann, 1889 †)
Nebularia bernhardina (P.F. Röding, 1798)
Mitra beui Thach, 2016
Imbricaria bicolor (W.J. Swainson, 1824)
Swainsonia biconica L. Bozzetti, 2011