The Collaborative International Dictionary of English v.0.48:
Crotaphytus \Crotaphytus\ n. a genus of lizards of the family Iguanidae, including the collared lizards. Syn: genus Crotaphytus. [WordNet 1.5]WordNet (r) 3.0 (2006):
Crotaphytus n 1: collared lizards [syn: Crotaphytus, genus Crotaphytus]