Thala abelai G. Rosenberg& R. Salisbury, 2014 Guam9 mm
Pusia accinctum (G.B. III Sowerby, 1907) New Caledonia16 mm
Vexillum acromiale (C. Hedley, 1915) Australia, Victoria11 mm
Vexillum acuminatum (J.F. Gmelin, 1791) India, Cuddalore32 mm
Vexillum acuminatum politum (L.A. Reeve, 1844) Philippines, Negros Island28 mm
Vexillum acupictum (L.A. Reeve, 1845) Mozambique, Nacala Bay34 mm
Thala adamsi G. Rosenberg& R. Salisbury, 2003 Okinawa8,7 mm
Vexillum adamsianum W.O. Cernohorsky, 1978 Hawaii11,2 mm
Vexillum aequatoriense M. Herrmann& G. Stossier, 2011 Indonesia, Waigeo Island
Vexillum aethiopicum (C.F. Jickeli, 1874) Eritrea, Massawa4 mm
Mitromica africana (E. Rolán& F. Fernandes, 1996) Senegal, Goree Bay7,8 mm
Austromitra aikeni M. Lussi, 2015 South Africa, Port Alfred9,3 mm
Pusia albocinctum (C.B. Adams, 1845) Panama7 mm
Vexillum albofulvum M. Hermann, 2007 Philippines, Bohol62 mm
Vexillum albolineatum T. Cossignani& V. Cossignani, 2007 Western Australia, Perth14 mm
Vexillum albotaeniatum (R.P.J. Hervier, 1897) Philippines, Balicasag Island14 mm
Vexillum altisuturatum M. Chino & M. Herrmann,2014 Philippines
Vexillum alvinobalani E.G. Guillot de Suduiraut, 1999 Philippines, Aliguay Island27 mm
Vexillum amabile (L.A. Reeve, 1845) Philippines, Balicasag Island18 mm
Vexillum amandum (L.A. Reeve, 1845) Philippines, Bohol Island13,7 mm
Vexillum amandum marciae G.B. III Sowerby, 1913 Guam10 mm
Vexillum amblipleura (FOSSIL) Gardner, 1937 † Florida13 mm
Austromitra ambulacrum (FOSSIL) (J. Marwick, 1926 †)
Vexillum amentare S.I. Huang, 2017 Philippines, Olango Island23 mm
Turricostellaria amphissa L.R.L. Simone& C.M. Cunha, 2012 Brazil, Abrolhos
Atlantilux ampla Y.F. Huang, 2015 Taiwan7 mm
Austromitra analogica (L.A. Reeve, 1845) South Australia9,5 mm
Austromitra analogica tateii (G.F. Angas, 1879) Australia, Yorke Peninsula9 mm
Thala angiostoma W.H. Pease, 1868 Tuamotu12 mm
Austromitra angulata (H.H. Suter, 1908) New Zealand, Otago8 mm
Thala angustissima (FOSSIL) (Degrange-Touzin, 1894 †) France, Aquitaine
Vexillum angustissimum (E.A. Smith, 1903) Philippines, Aliguay Island17 mm
Uromitra antegressa (FOSSIL) L.M.D. Bellardi, 1887 †
Vexillum anthracinum (L.A. Reeve, 1844) Philippines, Marinduque Island13,5 mm
Vexillum antonellii (W.L.H. Dohrn, 1860) Philippines, Balicasag Island24 mm