Siphonodentalium magnum (M. Boissevain, 1906)
Gadila marchadi (M. Nicklés, 1979)
Gadila mayori (J. Henderson, 1920)
Polyschides miamiensis (J. Henderson, 1920)
Siphonodentalium minimum H.P. Plate, 1908
Cadulus minusculus W.H. Dall, 1889
Gadila minutalis V. Scarabino, 1995
Cadulus minutissimus H. Niino& T. Habe in T. Habe & S. Kosuge, 1964
Siphonodentalium minutum Z. Qi,X.T. Ma & J.L. Zhang, 1998
Dischides minutus (C.B. Adams, 1872)
Gadila monodonta V. Scarabino, 1995
Cadulus monterosatoi É.A.A. Locard, 1897
Dischides montrouzieri V. Scarabino, 2008
Boissevainia mossiae V. Scarabino & F. Scarabino,2010
Gadila mucronatus (FOSSIL) R. Tate, 1887 †
Polyschides nedallisoni (W.K. Emerson, 1978)
Cadulus nerta C.H. Caetano & al., 2006
Cadulus newtonensis (FOSSIL) Meyer & T.H. Aldrich,1886 †
Gadila nicklesi (R.K. Dell, 1964)
Polyschides nitidus (J. Henderson, 1920)
Polyschides noronhensis L.R.L. Simone, 2009
Gadila novilunata T. Kira
Cadulus obesus R.B. Watson, 1879
Cadulus occiduus J.C. Verco, 1911
Siphonodentalium okudai T. Habe, 1953
Polyschides olivi (A. Scacchi, 1835)
Gadila opportuna J.T. Kuroda& T. Habe in T. Habe, 1961
Cadulus orbnutus (FOSSIL) (T.A. Conrad, 1869 †)
Dischides ovalis (M. Boissevain, 1906)
Cadulus ovulum (R.A. Philippi, 1844)
Gadila palmerae (FOSSIL) Hodgekinson, 1974 †
Gadila pandionis (A.E. Verrill& S. Smith in A.E. Verrill, 1880)
Cadulus parianus (FOSSIL) R.J.L. Guppy, 1896 †
Siphonodentalium parisiense (FOSSIL) G.P. Deshayes, 1861 †
Cadulus parvus J. Henderson, 1920