HERPETOLOGY OF LOWER CALIFORNIA. 1 27 



superior and five inferior labial plates to below the middle 

 of the orbit. The infralabials are separated from the 

 large sublabials by a series of granules. The gular scales 

 are rather large centrally, and the posterior part of the 

 region is not very distinct from the anterior. The scales 

 on the collar are of medium size, largest centrally, small 

 at edge, and in about seven transverse rows. There are 

 no large postantebrachials. The caudal scales are large 

 and provided with prominent diagonal keels. There are 

 twenty femoral pores. 



The color above is brownish olive, paler on the sides, 

 overlaid with tawny olive posteriorly, and crossed by nar- 

 row transverse black bands. The posterior six of these 

 bands extend entirely across the back, but the others are 

 interrupted, forming a dorsal series of black spots, with 

 corresponding vertical bars upon the sides. The black 

 markings on the neck are reduced to six longitudinal 

 series of more or less obsolete spots. The posterior limbs 

 are faintly reticulated with black, and illuminated with 

 numerous white spots above and posteriorly. The inferior 

 surfaces of the limbs are deep flesh color, with a slightly 

 purplish tinge. This color appears, also, on the gular 

 region, about the ears, and on the lower surface of the 

 tail. There are no large or distinct markings on the gular 

 region. 



Snout to vent lOO mm. Snout to ear 23 mm. Fore 

 limb 36 mm. Width of head 17 mm. Hind limb 69 mm. 

 Snout to edge of color 33 mm. 



This name was- established upon seven specimens from 

 Santa Margarita Island. The present collection contains 

 one from Magdalena Island, and two fine adults from 

 Comondu on the peninsula, thus greatly increasing the 

 known range of the species. The Magdalena specimen 

 is much smaller than those from Comondu, and differs 



