Opheodrys

Opheodrys is a genus of small to medium-sized nonvenomous colubrid snakes commonly referred to as green snakes. In North America the genus consists of two distinct species. As their common names imply, the rough green snake has keeled dorsal scales, whereas the smooth green snake has smooth dorsal scales.

== Taxonomy == The genus Opheodrys at one time included two Asian species: O. herminae, which is endemic to Japan, and O. major, which is endemic to Central/South China, Taiwan, N. Vietnam, and Laos. These were removed from the genus by Cundall in 1981 Opheodrys herminae (Boettger, 1895) = Ptyas herminae (Boettger, 1895) – Sakashima green snake Opheodrys major (Günther, 1858) = Ptyas major (Günther, 1858) – greater green snake