Eucithara abakcheutos R.N. Kilburn, 1992
Eucithara abbreviata (A. Garrett, 1873)
Antiguraleus abbreviatus (FOSSIL) Powell, 1944 †
Antiguraleus abernethyi R.K. Dell, 1956
Antiguraleus abnormis (FOSSIL) (F.W. Hutton, 1885 †)
Benthomangelia abyssopacifica A.V. Sysoev, 1988
Kurtziella acanthodes (R.B. Watson, 1881)
Kurtziella accinctus (G. Montagu, 1808)
Agathotoma aculea (W.H. Dall, 1919)
Ithycythara acutangulus (E.A. Smith, 1882)
Mangelia acuticostata (FOSSIL) P. Nyst †
Genotina adamii (L. Bozzetti, 1994)
Cryoturris adamsi (E.A. Smith, 1884)
Mangelia adansoni (J. Knudsen, 1952)
Oenopota admetoides (T.A. Okutani, 1968)
Antiguraleus aeneus (C. Hedley, 1922)
Kurtzia aethra (W.H. Dall, 1919)
Citharomangelia africana (G.B. III Sowerby, 1903)
Sorgenfreispira africana (R. Ardovini, 2004)
Bactrocythara agachada E. Rolán, J. Otero-Schmidt& F. Fernandes, 1994
Pseudorhaphitoma agna (J.C. Melvill & R. Standen,1896)
Mangelia ahuiri T. Cossignani & R. Ardovini,2011
Eucithara alacris C. Hedley, 1922
Propebela alaskensis (W.H. Dall, 1871)
Brachycythara alba (C.B. Adams, 1850)
Oenopota alba A.N. Golikov& O.A. Scarlato, 1985
Mangelia albicincta A.A. Gould, 1860
Cryoturris albida (C.B. Adams, 1845)
Mangelia albilonga E. Rolán & J. Otero-Schmidt,1999
Eucithara albivestis (H.A. Pilsbry, 1934)
Apispiralia albocincta (G.F. Angas, 1871)
Mangelia albolabrata E.A. Smith, 1882
Pyrgocythara albovittata (C.B. Adams, 1845)
Granotoma albrechti (A. Krause, 1886)
Pseudorhaphitoma albula (K.H.J. Thiele, 1925)