Herpetodryas frenatus Gray, 1853 Gonyosoma frenatum – Günther, 1858 Coluber frenatus – Boulenger, 1890[2]Elaphe frenata – Smith, 1943 Gonyosoma frenatum, common name Khasi Hills trinket snake, is a species of colubrid snake found in north-eastern India, southern China, Taiwan, and Vietnam.

They are uniform bright green above with a black streak along each side of the head, passing through the eye.

The upper lip and lower parts are pale green and they have a whitish ventral keel.

The frontal is as long as its distance from the end of the snout, shorter than the parietals, with no loreal.

It has one large preocular, two post-oculars with temporals 2+2 or 2+3 and 9 (or 8) upper labials, fourth, fifth, and sixth entering the eye.