Phlyctiderma heroni (FOSSIL) Ward& B.W. Blackwelder, 1987 † USA, North Carolina, Pamlico
Microstagon herouvalense (FOSSIL) (Deshayes) †
Microstagon herouvallense (FOSSIL) (G.P. Deshayes, 1858 †) France, Paris Basin
Diplodonta holosphaera J.C. Melvill, 1899
Diplodonta homalostriata (FOSSIL) W.P. Woodring, 1925 † Jamaica, Saint Thomas
Diplodonta hopkinsiensis (FOSSIL) Clark, 1895 †
Diplodonta impolita S.S. Berry, 1953 Washington, Puget Sound
Bruetia inaequalis (FOSSIL) (G.P. Deshayes, 1857 †) France, Paris Basin
Diplodonta incerta (FOSSIL) d'Archiac, 1850 † India, Meghalaya
Diplodonta inconspicua R.A. Philippi, 1845 Chile18 mm
Diplodonta indica (G.P. Deshayes, 1832)
Cycladicama indistincta (FOSSIL) Martin, 1879 † Indonesia, Jawa Tengah, Brebes
Diplodonta inezensis (L.G. Hertlein& A.M. Strong, 1947) West America
Felaniella infrequens (FOSSIL) (J. Marwick, 1926 †)
Diplodonta ingens (FOSSIL) G.P. Deshayes, 1857 † France, Paris Basin
Diplodonta intermedia S. Biondi-Giunti, 1859 Mediterranean Sea10 mm
Diplodonta irradiata (FOSSIL) A.E.M. Cossmann, 1887 † France, Paris Basin
Numella jacksonensis (G.F. Angas, 1868)
Phlyctiderma japonicum (H.A. Pilsbry, 1895) Japan
Minipisum japonicum T. Habe, 1961 Japan
Lamysia jousseaumei (É. Lamy, 1920)
Diplodonta knudseni M. Nicklés, 1955
Diplodonta lacrima (R.N. Kilburn, 1996)
Felaniella laevigata (FOSSIL) (G.P. Deshayes, 1825 †) France, Paris Basin
Microstagon laevigatum (FOSSIL) (G.P. Deshayes, 1858 †) France, Paris Basin
Microstagon laevigatum incrassatum (FOSSIL) (G.P. Deshayes, 1858 †) France, Paris Basin
Zemysina lamberti (FOSSIL) (G.P. Deshayes, 1857 †) France, Paris Basin
Diplodonta lateralis E.A. Smith, 1876 South Africa, Natal, Durban Bay18,3 mm
Cycladicama luciniformis A. Valenciennes in C. Rousseau, 1854
Phlyctiderma lucinoides (FOSSIL) (G.P. Deshayes, 1825 †) France, Paris Basin
Cycladicama lunaris M. Yokoyama, 1927 Indo-Pacific
Diplodonta lupinus (G.B. Brocchi, 1814) Italy, Fano21 mm
Diplodonta mediamericana (FOSSIL) J. Brown& H.A. Pilsbry, 1913 † Panama, Colón
Microstagon miliaria (FOSSIL) (J.B.P.A. Lamarck,1806 †) France, Picardie, Oise
Diplodonta minor (FOSSIL) W.H. Dall, 1900 † Panama, Colón