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Show 46 MR. G. A. BOULENGER ON A NEW LIZARD. [Feb. 6, 5. Description of a new Species of Lizard of the Genus Enyalius. By G. A. BOULENGER, F.Z.S. [Received January 30, 1883.] (Plate X.) ENYALIUS PALPEBRALIS, sp. n. (Plate X.) Head broad, rounded, once and one third as long as broad, covered with irregular strongly keeled or conical scales, those on the canthus rostralis and the superciliary border a good deal larger and projecting. No distinct occipital. Loreal region concave, with small, irregular, keeled scales. Temporal region with small convex scales, intermixed with larger conical ones. Superciliary border much produced posteriorly, with a strong denticulation formed by seven large pointed scales, the hinder three largest, subequal; three large conical scales behind the orbit, followed by an oblique series of five conical scales. Labials about 15, equal. Scales of the back and sides small, keeled, irregular, intermixed with larger conical ones; the four or five series contiguous to the dorsal crest larger, rhomboidal, strongly keeled, the keels obliquely directed upwards. A nuchal crest formed of four large scales, the highest measuring the vertical diameter of the ear-opening, separated from the dorsal crest by an interspace equal to its length. A strong dorsal crest, gradually diminishing in height to the base of the tail, where it becomes double and indistinct; the highest scale of the dorsal crest measuring three fourths the vertical diameter of the ear-opening. Gular scales keeled, the median subcorneal. Scales on the limbs and ou the pectoral and ventral regions strongly keeled. Tail compressed, with verticillate strongly keeled scales, five or six verticilli, gradually increasing in size. Upper surfaces yellowish brown ; back with blackish markings, forming indistinct oblique bands down the sides; limbs marbled with brown ; tail with brown annuli, interrupted interiorly; lower surfaces immaculate. millim. Total length (tail injured) 235 From tip of snout to ear-opening 31 „ ,, fore limb 50 vent 120 >> J? Length of fore limb 59 „ hind limb 78 A single (female) specimen, presented by Messrs. Veitch, is in the British Museum. It was collected by Mr. W . Davis at Cashiboya *", in Eastern Peru. 1 See map in P. Z. S. 1875, p. 252, pi. xxv. |