Scientific name: Sauromalus
Biological classification: Genus
Consists of: San Esteban chuckwalla · Angel Island chuckwalla · Sauromalus ater · Sauromalus slevini
Belongs to: Iguanidae
Chuckwallas are large lizards found primarily in arid regions of the southwestern United States and northern Mexico. Some are found on coastal islands. There are five species of chuckwallas, all within the genus Sauromalus; they are part of the iguanid family, Iguanidae.