Borsonella abrupta J.H. McLean & L.H. Poorman,1971
Cordieria acutata G.P. Deshayes, 1865
Typhlomangelia adenica A.V. Sysoev, 1996
Borsonella agassizii (W.H. Dall, 1908)
Bathytoma agnata C. Hedley & W.F. Petterd,1906
Borsonia aguilae (FOSSIL) C.W. Cooke, 1928 †
Filodrillia aikeni P. Stahlschmidt, 2015
Ophiodermella akkeshiensis (T. Habe, 1958)
Maoritomella albula (F.W. Hutton, 1873)
Aphanitoma alternans (FOSSIL) Nordsieck, 1972 †
Tropidoturris anaglypta R.N. Kilburn, 1986
Filodrillia angulifera B.C. Cotton, 1947
Cordieria angusta G.P. Deshayes, 1865
Drilliola annosa (FOSSIL) (Powell, 1942 †)
Belaturricula antarctica R.K. Dell, 1990
Drilliola antarctica Y.I. Kantor, M.G. Harasewych& N. Puillandre, 2016
Bathytoma arbucklei R.N. Kilburn, 1986
Borsonia armata O. Böttger, 1895
Zemacies armata (FOSSIL) A.W.B. Powell, 1942 †
Bathytoma atractoides (R.B. Watson, 1881)
Bathytoma atractoides aethiopica (E.C. Von Martens& K.H.J. Thiele, 1903)
Zemacies awakinoensis (FOSSIL) A.W.B. Powell, 1942 †
Bathytoma badifasciata N. Puillandre, A.V. Sysoev& al., 2010
Borsonella barbarensis W.H. Dall, 1919
Bathytoma bartrumi (FOSSIL) C.R. Laws, 1939 †
Borsonella bartschi (R. Arnold, 1903)
Asthenotoma basteroti (FOSSIL) M.A. Peyrot, 1932 †
Bathytoma belaeformis (G.B. III Sowerby, 1903)
Cordieria bellardii G.P. Deshayes, 1865
Tomopleura bellardii (F.P. Jousseaume, 1883)
Mitroborsonia beyeri (FOSSIL) H.J. Anderson, 1964 †
Asthenotoma biconus (FOSSIL) (F.E. Edwards, 1861 †)
Cordieria biplicata (FOSSIL) Sowerby in G. Dixon,1850 †
Asthenotoma bipunctula (S.V. Wood, 1879 )
Genota birmanica (FOSSIL) E.W. Vredenburg, 1921 †