Hoarechiton guzhovi (FOSSIL) B.I. Sirenko, 2013 †
Leptochiton habei H. Saito, 1997
Leptochiton hakodatensis (K.H.J. Thiele, 1909)
Leptochiton hirasei (Is. Taki & Is. Taki,1929)
Leptochiton hiriensis E. Schwabe & P. Lozouet,2006
Parachiton hodgsoni B.I. Sirenko, 2000
Parachiton hylkiae (H.L. Strack, 1993)
Leptochiton ibanezi Sirenko & Sellanes, 2016
Leptochiton incongruus (W.H. Dall, 1908)
Leptochiton incubatus Sirenko, 2017
Parachiton indecorus (P. Kaas & R.A. Van Belle,1990)
Leptochiton inquinatus (L.A. Reeve, 1847)
Leptochiton japonicus (K.H.J. Thiele, 1909)
Parachiton jordanensis (P. Anseeuw & Y. Terryn,2004)
Leptochiton josei (FOSSIL) Dell'Angelo & al., 2013 †
Leptochiton juvenis (E.H.J. Leloup, 1981)
Leptochiton kaasi B.I. Sirenko, 1990
Leptochiton kantori Sirenko, 2016
Leptochiton kerguelensis A. Haddon, 1886
Chauliochiton knighti (FOSSIL) Hoare & Smith, 1984 †
Leptochiton kurnilatus P. Kaas, 1985
Parachiton laevisquamatus B.I. Sirenko, 2015
Leptochiton lascrusesi B.I. Sirenko, 2015
Leptochiton latidens (J.R.M. Bergenhayn, 1933)
Parachiton latus H. Saito, 1996
Leptochiton laurae E. Schwabe & J. Sellanes,2010
Leptochiton leloupi P. Kaas, 1979
Leptochiton liapini (FOSSIL) B.I. Sirenko, 2013 †
Parachiton lifuensis A.F.B. Hull & J.J. Risbec,1931
Leptochiton lignatilis (FOSSIL) Dell'Angelo, Bertolaso& M. Sosso, 2015 †
Leptochiton lignatilis Angelo, Bertolaso& M. Sosso, 2015
Leptochiton linseae B.I. Sirenko, 2015
Leptochiton liratellus (T. Iredale & A.F.B. Hull,1925)
Leptochiton liratus (A. Adams & G.F. Angas,1864)
Parachiton litoreus T. Iredale & A.F.B. Hull,1925