498 8. TEI1DM 



rows 5 head depressed; frontoparietals separate, nostril anter- 

 ior to nasal suture. The nasal is not in contact with the second 

 supralabial; scales on posterior collar of considerable size, 

 scarcely larger than enlarged scales at center of gular region, 

 margin of fold with one to four rows of minute scales 5 

 four supraoculars; six femoral rows of enlarged scales, three 

 tibial (of great size in two anterior rows) seven to eight 

 brachial, three antebrachial ; underside of forearm with 

 narrow band of enlarged scales on posterior aspect; femoral 

 pores 19. 



"General coloration in adult orange-brown dorsally, 

 ventrally blackish over all surfaces, even of the feet. Color 

 pattern seven to nine extremely narrow, orange-brown longi- 

 tudinal lines, straight or wavy, alternating with black lines 

 of similar narrowness j brilliant color obscured by blackish 

 anteriorly; sides ornamented with orange spots more or less 

 in vertical rows bordered anteriorly with black; the mottling 

 with orange-brown and black extends over sides of head 5 

 the throat is crossed by two to three narrow bars of intense 

 black; mid-ventral caudal line marked by a double series 

 of small black spots." 



Total length 1 44- 



Head and body to anus 42 



Tail length 1 2 



Snout to collar 17 



Snout to ear 12 



Snout to intcrparietal 9 



Width of head 7 



Fore limb 18 



Hind limb 88 



Distribution. Tiburon Island, Gulf of California, Mex- 

 ico. 



Remarks. This species was described from an adult 

 (type) and two young specimens (paratypes). The locality 



