498 



MB. G. X. BOtJLENGBR ON THfi 



[May 18, 



enlarged supraoculars, bordered inwards by one series of very 

 small scales and separated from the supracUiaries by two series of 

 small scales ; two canthal scales ; three or four pointed scales, 

 smaller than those in front of them, form a denticulation on the 

 anterior border of the ear. 



Dorsal scales much larger than veutrals, as long as broad, 

 strongly keeled and mucronate, scarcely denticulate, the keels 

 converging more or less distinctly towards the median line ; 28 to 

 32 scales between the interparietal shield and the base of the tail ; 

 7 scales, taken in the middle of the back, correspond to the length 

 of the shielded part of the head. Lateral scales keeled, graduating 

 into the dorsals and ventrals, directed obliquely upwards and 

 backwards. Ventral scales small, smooth, bicuspid. 38 to 44 

 scales round the middle of the body. 



The adpressed hind limb reaches the ear ; tibia nearly as long 

 as the shielded part of the head ; the distance between the base of 

 the fifth toe and the extremity of the fourth equals the distance 

 between the end of the snout and the collar-fold. 17 to 21 

 femoral pores on each side. 



Caudal scales as large as dorsals, very strongly keeled and 

 mucronate, the keels forming continuous longitudinal ridges. 

 Males with enlarged postanal scales. 



Males olive or green above, uniform blue-green beneath ; no 

 collar, but a rather indistinct blackish blotch in front of the 

 shoulder. Females brown above, with ill-defiiied darker spots or 

 chevron-shaped cross-bars; whitish beneath, uniform or throat 

 bluish. 



Hah. A few specimens, of which the measurements and other 

 particulars are recorded above, were obtained by Dr. A. C. Buller 

 at La Cumbre de los AiTastrados, State of Jalisco, at an altitude of 

 8500 feet. 



13. SCELOPOEUS ZOSTEEOMTJS. 



Sceloporus zosteromus. Cope, Proc. Ac. Philad. 1863, p. 105, and 

 Proc. Amer. Philos. Soc. xxii. 1885, p. 395 ; Bouleng. Cat. Liz. ii. 

 p. 225 (1885) ; Stejneger, IST. Amer. Faun. no. 7, 1893, p. 181, 

 pi. i. fig. 3 ; Van Denburgh, Proc. CaUf. Acad. (2) v. 1895, p. 108. 



Scelopoinis clarkii zosieromus. Cope, Check-List N. Am. fiept. 

 p. 49 (1875). 



