Caucasian Agama

Head much depressed; nostril lateral, below the canthus rostralis, slightly tubular. Upper head-scales smooth; occipital not enlarged; small conical spinose scales on the side of the head near the ear, and on the neck; ear larger than the eye-opening. Throat strongly plicate; no gular pouch. Body much depressed, with a very indistinct lateral fold; nuchal and latero-dorsal scales very small, granular; vertebral region with enlarged flat, feebly keeled, rather irregular scales; flanks with enlarged, strongly keeled or spinose scales; no nuchal denticulation; ventral scales smooth, distinctly smaller than the enlarged dorsals. 150 to 160 scales round the middle of the body. Limbs strong, with compressed digits; the scales on the upper surface of limbs much enlarged, strongly keeled, generally spinose; fourth finger slightly longer than third; fourth toe a little longer than third, fifth extending beyond first. Tail rounded, depressed at the base, covered with rather large spinose scales arranged in rings, two rings forming a distinct segment; the length of the tail doos not equal quite twice the distance from gular fold to vent. Male with a large patch of callose preanal scales and an enormous patch of similar scales on the belly. …