Vot. IIT] VAN DENBURGH AND SLEVIN—ARIZONAN REPTILES 403 
10 five times, 11 seven times, and 12 once. Some were found 
lying along the limbs of mesquite trees and some were in low, 
thick-growing bushes on the sand hills east of Yuma. 
25.—Sceloporus jarrovii Cope 
Our collections include one hundred and forty-three speci- 
mens. ‘These were collected in Carr, Ramsey and Miller Can- 
yons in the Huachuca Mts., June 30—July 25, 1912; and in 
the vicinity of Paradise, Chiricahua Mts., August 4-9, 1912. 
These lizards are found on rocks in the oak and conifer belts, 
and range up to eight thousand feet in the Huachucas. They 
are not so common in the Chiricahuas as in the Huachucas. 
The femoral pores in forty specimens vary from thirteen to 
eighteen; being 13 three times, 14 twenty-three times, 15 
twenty-one times, 16 seventeen times, 17 thirteen times, and 
18 twice. 
The color of Sceloporus jarrovu in life is as follows: In an 
adult male, the collar is blue-black with some brilliant blue 
extending up from the throat near its anterior edge. The 
scales of the back and sides of body are outlined with black 
while the central portion of each scale is light, and in different 
lights appears white, gray, green, yellow, or irridescent bronze. 
The head, limbs, and tail are dark brown much relieved with 
malachite green. A whitish or irridescent bronze line runs 
back from the eye. Another runs along the upper lip to the 
ear. A similarly colored longitudinal bar extends forward on 
each side of the neck from the collar, and a band of the same 
tint, a scale in width, borders the collar behind except in the 
middorsal region. The collar is complete across the neck, and 
has a brownish continuation forward on the middle of the neck 
to the head. The chin, lower surfaces of the limbs and tail, 
and the center of the chest and belly are gray. The entire 
gular region and a stripe along each side of the belly are deep 
blue, the belly patches shading to malachite green laterally. 
Females and young are similarly but less clearly and brightly 
marked, particularly as regards the light centers of the scales, 
the intense black collar, and the blue of the inferior surfaces. 
In young specimens the predominant color is brown; though 
the characteristic collar shows in even the smallest specimens. 
The blue throat patch always is single. 
