Find the word definition

Wikipedia
Oplurus

Oplurus is a genus of Malagasy iguanian lizards, most of which are rock-dwelling terrestrial species.

The sister genus to Oplurus is Chalarodon, which contains two species: Chalarodon madagascariensis and Chalarodon steinkampi, which are terrestrial iguanas and easily distinguished from Oplurus by its smaller size and the presence of a distinct dorsal crest.