Notoplax holosericea (H.F. Nierstrasz, 1905)
Craspedochiton hystricosus P. Kaas, 1991
Acanthochitona imperatrix G.T. Watters, 1981
Choneplax indica (N.H. Odhner, 1919)
Notoplax inoi Is. Taki, 1962
Acanthochitona intermedia (H.F. Nierstrasz, 1905)
Craspedochiton isipingoensis (E.R. Sykes, 1901)
Acanthochitona joallesi (A. de Rochebrune, 1881)
Acanthochitona johnstoni E.A. Ashby, 1923
Acanthochitona jucunda (A. de Rochebrune, 1882)
Acanthochitona jugotenuis P. Kaas, 1979
Notoplax kaasi J.S. Hong, B. Dell'Angelo& R.A. Van Belle, 1990
Acanthochitona kimberi (W.G. Torr, 1912)
Acanthochitona kuratai Is. Taki, 1962
Acanthochitona lanae Sirenko & Saito, 2017
Notoplax lancemilnei K.L. Gowlett-Holmes, 1988
Craspedochiton laqueatus (G.B. II Sowerby, 1842)
Choneplax lata (L. Guilding, 1829)
Notoplax latalamina R.K. Dell, 1956
Acanthochitona leopoldi (E.H.J. Leloup, 1933)
Notoplax leuconota (C. Hedley & A.F.B. Hull,1912)
Craspedochiton liberiensis K.H.J. Thiele, 1909
Acanthochitona limbata P. Kaas, 1986
Acanthochitona lineata W.G. Lyons, 1988
Choneplax littlerorum B.I. Sirenko, 2003
Notoplax macandrewi T. Iredale & A.F.B. Hull,1925
Acanthochitona macrocystialis E.A. Ashby, 1924
Notoplax magellanica K.H.J. Thiele, 1909
Acanthochitona mahensis R. Winckworth, 1927
Notoplax mariae (W.H. Webster, 1907)
Cryptoconchus marwicki (FOSSIL) C.E.R. Bucknill, 1928 †
Acanthochitona mastalleri H.L. Strack, 1989
Bassethullia matthewsi (W.T. Bednall& H.A. Pilsbry in H.A. Pilsbry, 1894)
Notoplax mayi (E.A. Ashby, 1922)
Acanthochitona minuta E.H.J. Leloup, 1980