Gonyosoma
 Gonyosoma is a genus of colubrid snakes.There are a few distinct morphological characteristics that distinguish Gonyosoma from Elaphe.In scutellation there are 2-3 supralabials that contact the eye with typically two in G. oxycephalumand three in G. jansenii. The supralabial at the posterior eye is highly arched around the back of the eye.