Armadillo lizards 

Armadillo lizards represent an entirely African family of live-bearing species. The largest may grow to about 49 cm / 20 inches, but most are between 15-30 cm (6-12 inches) in total length. Cordylids are recognized by the depressed, arrow-shaped head which is covered in large plates, and strongly keeled tail scales that form annuli. Eyelids and ear openings are present. All species have well-developed limbs with five digits. The skin contains osteoderms. The teeth are hollow at the base. The parasternum is absent. 

Habitat preference is for arid desert and savannah regions. Most species are largely saxicolous (living in rocky areas).