21. STENOCERCUS. 135 



rhomboidal, imbricate, keeled, not mucronate, nearly as large as the 

 veutrals ; the keels forming slightly oblique lines. Gular scales 

 smaller than vontrals, obtusely keeled, imbricate ; ventral scales 

 rhomboidal, imbricate, smooth. The adpressed hind limb reaches 

 halfway between the ear and the eye ; fifth toe extending nearly as 

 far as second. Tail nearly twice as long as head and body, rounded, 

 tapering ; caudal scales strongly keeled, not mucronate, of moderate 

 size, larger than those on the body, arranged in rings. Upper sur- 

 faces dark bluish-grey, marbled with black ; tail with black cross 

 bars ; lower surfaces bluish-grey ; belly a little lighter. 



Total length 184 millim. 



Head 17 ,, 



Width of head 12 „ 



Body 47 „ 



Fore limb 81 ,, 



Hind limb 4(j ,, 



Tail 120 



•? 



») 



rt. d. ? J. Brenchley, E«q. [P.]. 



6. Stenocercus cupreus. (Plate IX. fig. 1.) 



Pterygoid teeth. Anterior border of ear denticulated. Median 

 supraocular scales slightly broader than long ; occipital indistinct ; 

 temporal scales obtusely keeled. Side of neck with two oblique 

 folds, the antehumeral strongest and with a serrated edge on its 

 lower half. Eody round, A scarcely distinct dorsal denticulation. 

 Dorsal scales large, strongly imbricate, sharply keeled, ending in a 

 short spine ; the keels forming continuous lines, which are slightly 

 oblique on the posterior part of the back ; lateral scales smaller, 

 feebly keeled. Scales under the neck larger than gulars and ventrals, 

 which are rhomboidal, imbricate, smooth, and much smaller than 

 dorsals. The adpressed hind limb reaches a little beyond the ear ; 

 fifth toe not extending as far as second. Tail nearly twice as long 

 as head and body, tapering, slightly compressed ; caudal scales a 

 little larger than dorsals, keeled, spinose, forming rings. Greyish- 

 brown above with coppery gloss, and with small irregular dark 

 brown spots ; lower surfaces yellowish white. 



Total length 110 millim. 



Head 19 „ 



Width of head 13 „ 



Eody 5G „ 



Fore limb 30 „ 



Hind limb 53 ,, 



Tail 135 „ 



Peru. 



a. J. Iluanuco. II. J. Veitch, Esq. [P.]. 



