18. CNEMIDOPHORUS 505 



ually a little smaller laterally and anteriorly, and changing 

 abruptly to smaller posterior gulars, the line of demarka- 

 tion being emphasized by two rows of smaller granules. 

 Scales on center of collar quite large, those on its edge 

 largest. Back covered with smooth, convex, rather large 

 granules. Eight longitudinal and 30 to 33 transverse rows 

 of ventral plates. Two large preanals, posterior widest. 

 Three rows of brachials, of nearly the same size. Ante- 

 brachials continuous with brachials, in two or three rows, 

 the outer little or much larger. Four or five rows of 

 f emorals, outer largest. Tibials in three rows, outer largest. 

 Granules along posterior surface of forearm not enlarged. 

 Lateral caudal scales oblique, rather strongly keeled, pointed 

 posteriorly. Femoral pores 12 or 13. 



The color above is dark brown with three longitudinal 

 light lines on each side, and a clay-colored band of the same 

 shade as the top of the head along the middle of the back. 

 The limbs are a little paler than the ground-color of the 

 back, and are marked with light longitudinal lines of which 

 there are two on the fore and four on the hind limbs. 



Length to anus 50 55 



Length of tail 123 132 



Snout to collar 17 17 17 18 18 



Snout to interparietal 9}4 9J/2 10.3 9 10 



Width of head 7J^ 8 8 8 8 



Fore limb 18 18 18 19 18 



Hind limb 36 37 38 39 +0 



Distribution. — This small species is known only from 

 five specimens collected, by Mr. L. Belding, on Cerros 

 Island, Lower California, Mexico. 



