Penion crassus (FOSSIL) D. Frassinetti, 2000 †
Penion crawfordi (FOSSIL) (F.W. Hutton, 1873 †)
Penion crawfordi?? (F.W. Hutton, 1873)
Penion cuvierianus (A.W.B. Powell, 1927)
Penion cuvierianus jeakingsi (A.W.B. Powell, 1947)
Penion darwinianus (FOSSIL) R.A. Philippi, 1887 †
Penion delabechii (FOSSIL) (Lea, 1833 †)
Penion dilatatus (J.R.C. Quoy& J.P. Gaimard, 1833)
Penion diversus (FOSSIL) D. Frassinetti, 2000 †
Penion domeykoanus (FOSSIL) (R.A. Philippi, 1887 †)
Penion exoptatus (FOSSIL) (Powell & J.A. Bartrum,1929 †)
Penion fairfieldae (A.W.B. Powell, 1947)
Penion finlayi (FOSSIL) (C.R. Laws, 1930 †)
Penion gauli (FOSSIL) (J. Marwick, 1948 †)
Penion haweraensis (FOSSIL) (Powell, 1931 †)
Penion hiatulus (FOSSIL) (Powell, 1947 †)
Penion huttoni (FOSSIL) (L.C. King, 1934 †)
Penion imperfectus (FOSSIL) (Powell, 1947 †)
Penion interjunctus (FOSSIL) (Finlay, 1930 †)
Penion koruahinensis (FOSSIL) (J.A. Bartrum & Powell,1928 †)
Penion longirostris (FOSSIL) (R. Tate, 1888 †)
Penion macsporrani (FOSSIL) (R.A. Philippi, 1887 †)
Penion mandarinus (P.L. Duclos, 1851)
Penion marwicki (FOSSIL) Finlay, 1930 †
Penion masoni (FOSSIL) (C.A. Fleming, 1943 †)
Penion maximus (G.W. Tryon, 1881)
Penion oncodes (FOSSIL) (R.A. Philippi, 1887 †)
Penion ormesi (A.W.B. Powell, 1927)
Penion parans (FOSSIL) (Finlay, 1930 †)
Penion petitianus (FOSSIL) (A.V.M.D. D'Orbigny,1842 †)
Penion proavitus (FOSSIL) (Finlay & J. Marwick,1937 †)
Penion subrectus (FOSSIL) (H.F.A. von Ihering,1899 †)
Penion subreflexus (FOSSIL) (G.B. I Sowerby, 1846 †)
Penion subregularis (FOSSIL) (A.V.M.D. D'Orbigny,1852 †)
Penion sulcatus (J.B.P.A. Lamarck, 1816)