Borneo Anglehead Lizard

Gonocephalus bornensis

Borneo Anglehead Lizard or Borneo Forest Dragon is an agamid lizard endemic to Borneo in Indonesia and Malaysia, and known from Sabah, Kinabalu, Brunei, Sarawak and Kalimantan.
Borneo Anglehead Lizard 23 Sep, 2015. Body length up to 13 cm, plus tail 40 cm. Males of the species are brownish in colour with pale flecks, and are paler ventrally. They possess an unmistakable and well developed comb-like crest of spines which extends along the vertebral line from the neck to the base of the tail. Females are green or brownish with a complex pattern of rounded cell-like blotches separated by dark grey .The crest is much reduced in females. In both sexes the throat pouch is pale. Seen during a night walk in the Sepilok Orangutan rehabilitation center. Sabah. Borneo Anglehead Lizard,Fall,Geotagged,Gonocephalus bornensis,Malaysia,borneo,lizad,malaysia,reptile

Appearance

Moderately long . Males generally larger than females . Circular border on supercilium. Tympanum rather small. Weakly granular dorsum with a prominent lanceolate crest starting on neck and terminating on lower back. Tail is almost cylindrical.



Sub-adult males are generally brown, olive and green on dorsum with laterals, often with dark reticulations. Adult males are predominantly male with indistinct reticulation. Iris deep brown or light blue. Females rust red dorolaterally with oval spots formed from reticulations on the sides of body.
Borneo Anglehead Lizard ♀ - Gonocephalus borneensis Poring Hot Springs, forest nearby. Borneo Anglehead Lizard,Fall,Geotagged,Gonocephalus bornensis,Malaysia

Distribution

Is endemic to Sabah in Borneo. Found commonly in Mt. Kinabalu, Poring hot springs and Kiau
Borneo Forest Dragon (Gonocephalus bornensis) This beautiful specimen was photographed during a night walk looking for owls in the Danum Valey, Malaysia. Borneo Anglehead Lizard,Danum Valley,Gonocephalus bornensis,Malaysia,Mehd Halaouate

Habitat

Found in primary and secondary rainforests up to 700 m a.s.l. Arboreal in habit, they live in tree trunks and on lianas often near streams. They deposit eggs in a small burrow dug on soil. Up to four eggs are laid per clutch at intervals of three months.
Borneo Anglehead Lizard ♂ - Gonocephalus borneensis Poring Hot Springs, forest nearby. Fall,Geotagged,Malaysia

Evolution

Found in primary and secondary rainforests up to 700 m a.s.l. Arboreal in habit, they live in tree trunks and on lianas often near streams. They deposit eggs in a small burrow dug on soil. Up to four eggs are laid per clutch at intervals of three months.

References:

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Taxonomy
KingdomAnimalia
DivisionChordata
ClassReptilia
OrderSquamata
FamilyAgamidae
GenusGonocephalus
SpeciesG. bornensis