Melanella aurata Y. Hirase, 1920
Hemiliostraca auricincta (R.T. Abbott, 1958)
Microstilifer auricula (C. Hedley, 1907)
Polygyreulima auriculata (FOSSIL) (A. von Koenen, 1867 †)
Annulobalcis aurisflamma L.R.L. Simone& A.M. de F. Martins, 1995
Hypermastus auritae A. Warén, 1991
Eulima australasiaca J.C. Melvill & R. Standen,1899
Parvioris australiensis A. Warén, 1981
Sticteulima australiensis (K.H.J. Thiele, 1930)
Scalenostoma babylonia (P. Bartsch, 1912)
Pyramidelloides baculumpastoris (J.C. Melvill & R. Standen,1896)
Balcis badenia (FOSSIL) C.R. Laws 1939 †
Sticteulima badia (R.B. Watson, 1897)
Hemiliostraca bahamondei H.A. Rehder, 1980
Pseudosabinella bakeri (P. Bartsch, 1917)
Melanella baldra P. Bartsch, 1917
Eulima balteata (C.B. Adams, 1864)
Niso balteata G.B. III Sowerby, 1900
Fuscapex baptocephalus (P. Dautzenberg& H. Fischer, 1896)
Pyramidelloides barbadensis R.G. Moolenbeek& M.J. Faber, 1992
Eulima barreti P. Bartsch
Monogamus barroni (C.B. Adams, 1854)
Eulima barthelowi (P. Bartsch, 1917)
Microeulima bartschi (A.M. Strong& L.G. Hertlein, 1937)
Protonema bartschi (FOSSIL) Cooke, 1928 †
Niso basiglobosa (FOSSIL) J. Marwick, 1942 †
Stylifer bathymetrae (W.H. Dall, 1908)
Niso baueri W.K. Emerson, 1965
Balcis beaufortensis (FOSSIL) Ward & B.W. Blackwelder,1987 †
Melanella becki (W.H. Turton, 1932)
Curveulima beneitoi A. Peñas & E. Rolán, 2006
Vitreolina bermudezi (H.A. Pilsbry& C.G. Aguayo, 1933)
Melanella berryi P. Bartsch, 1917
Zardinistylus betsibokaensis (FOSSIL) S. Kiel, 2006 †
Flemmingia bicarinata (FOSSIL) Klipstein, 1843 †