REPTILES OF THE PACIFIC COAST. 



117 



large and extending to margin of lip, but small first 

 supralabial plate may be seen below it. Second supra- 

 labial largest. Symphyseal large, followed by several 

 pairs of large sublabials. 

 Infralabials smaller than su- 

 pralabials. Dorsal, ventral, 

 lateral, and caudal scales all 

 similar, slightly largest on 

 tail and smallest on neck, 

 strongly imbricate, rounded ^^^ 

 in posterior outline, and per- .^^yyyyyy, >-^ jt,. j^ 

 fectly smooth. Preanal scales ^^^ j^ .1 .{>,:,. 

 slightly enlarged. Number of ^^^ ^^" "*" .-i^.^ 

 longitudinal series of scales ^^^ ^ ,. 

 around bod}^ varying from Jw^^ 

 twenty-four to thirty-four. 



The color above is yellowish white or silvery or drab- 

 gray, with one distinct longitudinal brown line down 

 the middle of the back and one or more similar lines 

 along each side. Very narrow brown zigzag lines usu- 

 ally run along the margins of the other series of dorsal 

 scales. These lines are sometimes quite yellowish, some- 

 times nearly black. The lower surfaces are yellowish 

 white, frequently suffused with brown, slate, or gray on 

 the chin, throat, and tip of tail, and often showing nar- 

 row zigzag longitudinal lines. The entire upper surface 

 of a specimen from San Bernardino is slightly suffused 

 with olive-gray. 



Length to auus 84 97 125 130 143 146 



Leugth of tail 44 59 70 74 89 96 



Width of head 4 4 5 5 6 6 



Head to inteiparietal 4 5 5 5 5 6 



Diameter of body 4 5 5 7 7 7 



Distribution. — The most northern localities from which 

 I have obtained specimens of this lizard are San Ardo, 



