Cerodrillia arubensis P.J. Fallon, 2016
Imaclava asaedai (L.G. Hertlein& A.M. Strong, 1951) Mexico, Sea of Cortèz
Drillia asra K.H.J. Thiele, 1925
Cerodrillia asymmetrica J.H. McLean& L.H. Poorman, 1971 Panama7,1 mm
Drillia athyrma J.C. Melvill& R. Standen, 1901 Somalia25,2 mm
Syntomodrillia atsutaensis (FOSSIL) F.S. MacNeil, 1960 † Okinawa
Elaeocyma attalia W.H. Dall, 1919 Mexico, Mazatlan
Drillia audax J.C. Melvill& R. Standen, 1903 Oman
Clathrodrillia aulakoessa (FOSSIL) J. Gardner, 1938 † Florida, Alum Bluff formation
Drillia aurantia (FOSSIL) A.A. Olsson, 1922 † Costa Rica, Pueblo Nuevo
Bellaspira aurantiaca P.J. Fallon, 2016
Agladrillia aureola P.J. Fallon, 2016
Splendrillia aurora (K.H.J. Thiele, 1925) Philippines, Mactan Island13 mm
Austroclavus awakinoensis (FOSSIL) A.W.B. Powell, 1942 † New Zealand
Spirotropis azorica P. Bouchet & A. Warén,1980 Cape Verde11,2 mm
Agladrillia badia J.H. McLean& L.H. Poorman, 1971 Galapagos
Splendrillia bahamasensis P.J. Fallon, 2016
Cerodrillia bahamensis (P. Bartsch, 1943) Florida, Duval County
Drillia ballista H.F. Von Maltzan, 1883 Senegal, Dakar
Iredalea balteata (A.A. Gould, 1860) Philippines, Mactan Island5,8 mm
Bellaspira barbadensis P.J. Fallon, 2016
Drillia barkliensis (H. Adams, 1869) USA, California
Cymatosyrinx bartschi F. Haas, 1941 Bermuda
Splendrillia basilirata A.V. Sysoev, 1990 Seamounts
Clavus basipunctatus R.N. Kilburn, 1988 Somalia
Drillia bealiana (J.S. Schwengel& J.T.L. McGinty, 1942) Puerto Rico
Clavus beckii (L.A. Reeve, 1842) Solomon Islands
Splendrillia bednalli (G.B. III Sowerby, 1896) South Australia
Stenodrillia bellardii (FOSSIL) (C. des Moulins, 1842 †) Italy, Emilia
Agladrillia benjamini (P. Bartsch, 1915) South Africa, False Bay
Elaeocyma benten (M. Yokoyama, 1920) China, Zhejiang12,9 mm
Splendrillia benthicola R.K. Dell, 1956 New Zealand, North Island
Clavus berenice (W.H. Dall, 1918) Queensland
Syntomodrillia bermudensis P.J. Fallon, 2016
Clathrodrillia berryi (J.H. McLean& L.H. Poorman, 1971) Pacific Panama