Genus Cryptodonta T. Nuttall in P. P. Carpenter, 1864

(3-4-3-1-3-3-2-6-0-0-0-0-0
[=Platyodon T. A. Conrad, 1837]
Ref. Abbott, 1974 p 538
Vaught,1989 p 137
Vokes, 1980 p 180

myoides ex T. Nuttall, ms, P. P. Carpenter, 1864
(3-4-3-1-3-3-2-6-0-1-0-0-0
[=Platyodon (Platyodon) cancellatus (T. A. Conrad, 1837)]
Ref. Bernard, 1983 p 57