About Trioceros johnstoni (Boulenger, 1901)
Nomenclature and Taxonomy
Trioceros johnstoni, commonly called Johnston's chameleon, Johnston's three-horned chameleon, and the Ruwenzori three-horned chameleon, is a species of chameleon, a lizard that belongs to the family Chamaeleonidae.
Geographic Endemicity
This species is endemic to the highlands of the Albertine Rift region in central Africa.
Maximum Length
It reaches a maximum total length of 30 cm (12 in) when the tail is included.
Sexual Dimorphism in Horns
Only adult males of this species have three horns; females do not have any horns at all.
Altitudinal and Geographic Range
T. johnstoni occurs in forests at altitudes ranging from 1,000 to 2,500 m (3,300–8,200 ft) across the Albertine Rift, specifically in eastern Democratic Republic of the Congo, western Burundi, western Rwanda, and southwestern Uganda.
Habitat Tolerance
The species is also able to tolerate semi-urbanized environments, as long as some trees and bushes remain present in these areas.
Reproductive Mode
T. johnstoni is oviparous, meaning females lay eggs.
Clutch Size
Each clutch laid by a female contains between 4 and 23 eggs.
