Stenosemus golikovi B.I. Sirenko, 1994 Ryukyu Islands
Ischnochiton goreensis K.H.J. Thiele, 1909
Ischnochiton goudi P. Kaas, 1996
Ischnochiton granulifer K.H.J. Thiele, 1909 New Zealand
Lepidozona guadalupensis A. Ferreira, 1978 Mexico, Isla Guadalupe
Ischnochiton guatemalensis K.H.J. Thiele, 1909
Ischnochiton hakodadensis P.P. Carpenter in H.A. Pilsbry, 1893 Korea20 mm
Ischnochiton hartmeyeri K.H.J. Thiele, 1910 Florida
Stenoplax heathiana (S.S. Berry, 1946) California, Cambria
Stenoplax hernandezi B. Dell'Angelo, E. Schwabe& al., 2014 Gabon, Sao Tomé Island7,6 mm
Stenosemus herosae B.I. Sirenko, 2008
Lepidozona higoi Is. Taki, 1978
Lepidozona hyotanseana W.L. Wu & T.A. Okutani,1986
Tripoplax ima (B.I. Sirenko, 1975)
Ischnochiton imitator (E.A. Smith, 1881) Chile, Isla Mocha9,3 mm
Ischnochiton indianus E.H.J. Leloup, 1981 Iles Glorieuses, Madagascar
Ischnochiton indifferens K.H.J. Thiele, 1911
Ischnochiton inermis T. Nuttall
Lepidozona interfossa (S.S. Berry, 1917)
Ischnochiton intermedius C. Hedley & A.F.B. Hull,1912 Norfolk Island
Lepidozona interstincta (A.A. Gould, 1852) Canada, British Columbia18 mm
Lepidozona iyoensis (Is. Taki & Is. Taki,1929)
Lepidozona japonicus K.H.J. Thiele, 1909 Japan
Connexochiton kaasi H. Saito, 1997
Ischnochiton kaasi A. Ferreira, 1987
Cymatochiton kaibabensis (FOSSIL) (Brady, 1955 †) USA, Arizona, Coconino
Lepidozona kanakoffi (FOSSIL) Vendrasco & al., 2012 † United States
Ischnochiton keili H.P. Plate, 1899
Stenoplax kempfi (G. Righi, 1971) Brazil, Guarapari
Ischnochiton kermadecensis T. Iredale, 1914 New Zealand, Kermadec Islands
Ischnochiton kilburni P. Kaas, 1979
Tripoplax kobjakovae (A.M. Jakovleva, 1952)
Stenosemus kolesnikovi B.I. Sirenko, 1994
Lepidozona laurae A. Ferreira, 1985 Mexico, Sonora
Stenoplax lavanonoensis Dell'Angelo, B.I. Sirenko& G. Prelle, 2015