Polygona abbotti (M.A. Snyder, 2003)
Latirus abbreviatus (FOSSIL) (J.B.P.A. Lamarck,1803 †)
Latirus abnormis Sowerby, 1894
Peristernia acaulis (FOSSIL) Martin, 1895 †
Chryseofusus acherusius R. Hadorn & K. Fraussen,2003
Fusinus aciculatus (FOSSIL) (J.B.P.A. Lamarck,1803 †)
Fractolatirus aciformis (FOSSIL) (R. Tate, 1888 †)
Microcolus actinostephes (FOSSIL) (R. Tate, 1888 †)
Latirus acuminatus (L.C. Kiener, 1840)
Dolicholatirus acus (A. Adams & L.A. Reeve,1848)
Terebraspira acuta (FOSSIL) (E. Emmons, 1858 †)
Fusinus acutiformis (FOSSIL) G.P. Deshayes, 1835 †
Fusinus aepynotus (W.H. Dall, 1889)
Peristernia aethiops J.H. Macpherson, 1959
Fasciolaria affinis (FOSSIL) (L.M.D. Bellardi, 1884 †)
Fusinus affinis (FOSSIL) (H.G. Bronn, 1831 †)
Peristernia affinis (FOSSIL) R. Tate, 1888 †
Fusinus africanae (K.H. Barnard, 1959)
Rhopalithes africanus (FOSSIL) R.B. Newton, 1922 †
Fusinus agadirensis R. Hadorn & E. Rolán,1999
Fusinus agatha (L.R.L. Simone & D. Abbate,2005)
Buccinofusus ageri (FOSSIL) Abbass, 1967 †
Kilburnia agulhasensis (J.R. le B. Tomlin, 1932)
Pseudolatirus aikeni (FOSSIL) M. Lussi, 2014 †
Fusinus akitai J.T. Kuroda & T. Habe,1961
Rocalaria alani (FOSSIL) Del Rio, 2012 †
Fusinus alaquaensis (FOSSIL) W.C. Mansfield, 1935 †
Fusinus albacarinoides R. Hadorn, C.M.L. Afonso& E. Rolán, 2009
Fusinus albinus (A. Adams, 1856)
Latirus alboapicatus E.A. Smith, 1902
Taron albocostus W.F. Ponder, 1968
Fusinus alcimus (W.H. Dall, 1889)
Fusinus alcyoneum R. Hadorn & K. Fraussen,2006
Hemipolygona aldeynzeri (E.F. Garcia, 2001)
Peristernia aldingensis (FOSSIL) R. Tate, 1888 †