Inodrillia acloneta (W.H. Dall, 1889)
Inodrillia acova P. Bartsch, 1943
Inodrillia acrybia (W.H. Dall, 1889)
Mauidrillia acuta (FOSSIL) (J. Marwick, 1928 †)
Horaiclavus adenensis A. Bonfitto & M. Morassi,2014
Inodrillia aepynota (W.H. Dall, 1889)
Paradrillia agalma (E.A. Smith, 1906)
Austrodrillia agrestis (J.C. Verco, 1909)
Carinapex albarnesi S.G. Wiedrick, 2015
Austrodrillia albobalteata (E.A. Smith, 1890)
Psittacodrillia albonodulosa (E.A. Smith, 1904)
Carinapex alisonkayae S.G. Wiedrick, 2015
Paradrillia alluaudi (P. Dautzenberg, 1932)
Aoteadrillia alpha (FOSSIL) (L. C. King, 1933 †)
Inodrillia amblytera (K.J. Bush, 1893)
Carinapex amirowlandae S.G. Wiedrick, 2015
Horaiclavus anaimus A.V. Sysoev in A.E. Fedosov& Y.I. Kantor, 2008
Austrodrillia angasi (J.C.H. Crosse, 1863)
Anacithara angulicostata R.N. Kilburn, 1994
Anacithara angulosa (E.A. Smith, 1872)
Mauidrillia angustata (FOSSIL) A.W.B. Powell, 1942 †
Sedilia aphanitoma (FOSSIL) (W.H. Dall, 1892 †)
Aoteadrillia apicarinata (FOSSIL) (P. Marshall& R. Murdoch, 1923 †)
Aoteadrillia asper (FOSSIL) (J. Marwick, 1931 †)
Paradrillia astuta (FOSSIL) (M. Yokoyama, 1928 †)
Inodrillia avira P. Bartsch, 1943
Anacithara axialis (FOSSIL) (P. Marshall, 1918 †)
Naskia axiplicata A.V. Sysoev & D.L. Ivanov,1985
Psittacodrillia bairstowi (G.B. III Sowerby, 1886)
Buchema bellula (E.A. Smith, 1882)
Austrodrillia beraudiana (J.C.H. Crosse, 1863)
Pseudexomilus bicarinatus T. Shuto, 1983
Anacithara biconica Barros,J. Santana & Lima, 2015
Anacithara biscoitoi F. Nolf & F. Swinnen,2011
Ceritoturris bittium (W.H. Dall, 1924)