1 to 2 rows of large conical scales along sides. Often with a light lateral stripe on a usually blue-green background color. Does well in captivity and has been bred for seveal generations. Tropical southern Africa. Easily to 30 cm.
Skin fold on the nape.
East African montane species up to about 3000 m. To 50 cm. Mountain forests to more than 3000 m in East Africa. Males with 3 long, forward pointing head horns, these weak or absent in females. Males may be bright green. Durable and hardyh in captivity.