[1] If defined more broadly, it consists of five subspecies found in Southeast Asia.

[1] Adults may attain a snout-vent length (SVL) of 62 cm (24 in).

There is narrow bicolor stripe on the first one and a half dorsal scale rows.

The iris of the eye is red or orange in adults of both sexes, but in young specimens may be yellowish-green.

[4] In Borneo, it inhabits mountainous regions at altitudes from 1,000 m (3,300 ft) to 1,150 m (3,770 ft), where it is commonly found on branches of shrubs and other low vegetation.