Locations : Lambir Hills NP, Deramakot. Physique : A large, robust flying lizard. Body relatively robust; patagial ribs six; no spinous projection above eye; males with nuchal sail. Scalation : Dewlap covered with small scales; supralabials 14-15; dorsals mostly homogenous, with a small series of large scales at base of patagium; fringe like scales on posterior margin of thighs and tail base; ventrals larger than dorsals, keeled; subcaudals 1.3-2 times larger than adjacent scales. Habit : diurnal ; arboreal. Habitat : Mainly inhabits river edges in forests from the lowlands to about 1000m. Natural History : Known to sleep on tree trunks 1.5-2m above ground. Diet presumably comprises ants and other insects. Between 1-5 eggs, measuring 11-18mm are produced at a time.