Inquisitor glauce (W.H. Dall, 1918)
Inquisitor hebes (FOSSIL) J. Marwick, 1931 †
Inquisitor hedleyi (J.C. Verco, 1909)
Inquisitor hormophorus A.V. Sysoev & P. Bouchet,2001
Inquisitor indistinctus A.V. Sysoev, 1996
Inquisitor insignita (J.C. Melvill, 1923)
Inquisitor interrupta (J.B.P.A. Lamarck, 1816)
Inquisitor intertincta (E.A. Smith, 1877)
Inquisitor isabella R.N. Kilburn, 1988
Inquisitor ischnos (FOSSIL) (R.A. Philippi, 1887 †)
Inquisitor jeffreysii (E.A. Smith, 1875)
Inquisitor kawamurai (T. Habe & S. Kosuge,1966)
Inquisitor kilburni F.E. Wells, 1994
Inquisitor komiticus (FOSSIL) C.R. Laws, 1939 †
Inquisitor kurodai (T. Habe & S. Kosuge,1966)
Inquisitor lanceolatus (FOSSIL) (L.H. Hupé, 1854 †)
Inquisitor lassulus C. Hedley, 1922
Inquisitor laterculata (G.B. II Sowerby, 1870)
Inquisitor latifasciata (G.B. II Sowerby, 1870)
Inquisitor latiriformis R.N. Kilburn, 1988
Inquisitor mastersi (J.W. Brazier, 1876)
Inquisitor minimarus S. Kosuge, 1993
Inquisitor minutosternalis S. Kosuge, 1993
Inquisitor mirabelflorenti T. Cossignani, 2016
Inquisitor multilirata (E.A. Smith, 1877)
Inquisitor nodicostatus R.N. Kilburn, 1988
Inquisitor nudivaricosus J.T. Kuroda, T. Habe& K. Oyama, 1971
Inquisitor odhneri F.E. Wells, 1994
Inquisitor perclathrata J.T. Kuroda, 1960
Inquisitor plurinodulatus B.C. Cotton, 1947
Inquisitor plurivaricis B.Q. Li, R.N. Kilburn& X.Z. Li, 2010
Inquisitor powelli (FOSSIL) (R.K. Dell, 1950 †)
Inquisitor pseudoprincipalis (M. Yokoyama, 1920)
Inquisitor radula (R.B. Hinds, 1843)
Inquisitor ritae Stahlschmidt & Fraussen,2017