About Trioceros johnstoni (Boulenger, 1901)
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. This species is endemic to the highlands of the Albertine Rift region in central Africa. It reaches a maximum total length of 30 cm (12 in) when the tail is included. Only adult males of this species have three horns; females do not have any horns at all. 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. The species is also able to tolerate semi-urbanized environments, as long as some trees and bushes remain present in these areas. T. johnstoni is oviparous, meaning females lay eggs. Each clutch laid by a female contains between 4 and 23 eggs.
