Gonocephalus borneensis Borneo Angle-headed Lizard
Some other names for this species:
Borneo Forest Dragon
This species is sometimes spelled Gonocephalus bornensis.
Kubah National Park, Sarawak, MalaysiaJanuary 27, 2017
Borneo Angle-headed Lizard (Gonocephalus borneensis) Borneo Angle-headed Lizard (Gonocephalus borneensis)
Youngsters of Gonocephalus borneensis and Gonocephalus liogaster look very similar, and I only saw youngsters of this species. However, I'm reasonably sure from close examination of the scales on the face that this is G. borneensis, because it doesn't have a semicircle of enlarged scales between the eye and the mouth. See how I spend my time?

My Travelogues and Trip Lists page includes a complete list of the herps I saw in the wild on this trip to Malaysia, as well as a travelogue of the trip.

Santubong Peninsula, Sarawak, MalaysiaJanuary 28, 2017
Borneo Angle-headed Lizard (Gonocephalus borneensis)
Another youngster from another wild area near Kuching. Also lacking those tell-tale enlarged scales, making this G. borneensis by default.
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Printed references: