The Thickhead rock gecko, (Bunopus crassicauda), is the Bunopus only known with certainty from the northwestern part of the Central Plateau, Iran. There is a record for Djebel Amri, northeastern Syria, however this requires verification (Anderson, 1999). The species might be more widely distributed than is currently known, but additional surveys are needed to investigate this. It is found at elevations of between 1,000 and 2,000m as.