Emys is a small genus of turtles in the family Emydidae. The genus (sensu lato) is endemic to Europe and North America.
Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Emys.
The eastern North American species, E. blandingii, is usually separated into its own genus, Emydoidea. Similarly, the western North American species, E. marmorata and E. pallida, were recently moved to their own genus, Actinemys.[5]