124 CALIFORNIA ACADEMY OF SCIENCES. 



the head are blotched with walnut brown. Many of the 

 ventral plates have black basal markings. The tail is 

 tawny olive, tinged and spotted with dark chestnut. 



Snout to vent 131 mm. Tail (regrown) 302 mm. Hind 

 limb 87 mm. Fore limb 48 mm. Snout to ear 30 mm. 

 Greatest width of head 19 mm. Snout to edge of collar 

 41 mm. 



Young. — Young individuals have five bluish white lon- 

 gitudinal lines on a black ground which is more or less 

 broken by spots of the same color as the lines. Their 

 tails and hind limbs are suffused with bright flesh color. 

 In one there are six instead of five pale lines. 



Variation. — The femoral pores vary in number from 

 twenty to twenty-six. The scales of the collar are some- 

 times largest at its edge. The general ground color is at 

 times quite gray, and the dark markings often more or 

 less obsolete, particularly on the anterior part of the 

 body. The number of plates on the limbs is very vari- 

 able. 



