What is "arthrosaura"

Arthrosaura is a genus of spectacled lizards ( family Gymnophthalmidae). These lizards occur in northern South America. There appears to be two species groups: a longer-legged, short-bodied group with four supraocular scales (A. guianensis, A. kockii, and A. testigensis); and a short-legged, gracile group with three supraoculars (A. reticulata, A. synaptolepis, A. tyleri, and A. versteegii ).