Genus Crypton A. E. Verrill, 1880

(3-4-4-0-20-6-2-12-0-0-0-0-0)
[error]
[=Thyasira W. E. Leach in J. B. P. A. de Lamarck, 1818]
Ref. Vaught, 1989 p 125
[=Cryptodon W. H. Turton, 1822]
Ref. Vokes, 1980 p 105