82 3. IGUANID^ 



upper surface of the head is grayish, brownish, or yellowish, 

 more or less clouded with slate, darkest on the supraocular 

 regions. The tail is whitish, yellowish, grayish, or brownish, 

 marked with rings of brown or slate. The lower surfaces 

 are white, marked on the chin and gular region with longi- 

 tudinal or oblique lines of brown or bluish gray, and some- 

 times more or less suffused centrally with dark brown. 



Length to anus 68 85 106 110 121 127 



Length of tail ....150 181 231 238 250 248 



Snout to orbit 5 6 7 7 8 8 



Snout to ear 13 15 3/2 19 19 2! 22 



Orbit to ear 3J/2 4 6 6 7 8 



Fore limb 22 3+ 4-3 43 46 49 



Hind limb 56 69 87 85 96 92 



Base of fifth to end of 



fourth toe 24 29 35 36 39 37 



Distrlbutioti. — Carmen and Coronado islands, Gulf of 

 California, Mexico. 



Remarks. — The Crested Lizard of Carmen Island is 

 very similar to that of the Cape Region of Lower California, 

 with which it agrees in the number of granules between the 

 nasal and rostral plates, although the northern form occupies 

 the intervening territory. Its femoral pores average more 

 numerous than in D. d. lucasensis, agreeing in this respect 

 with D. d. dor salts. 



Type.— No. 50504, Mus. Calif. Acad. Sci.; Joseph R. 

 Slevin, collector. May 21, 192L 



Type locality. — Near Puerto Bellandro, Carmen Island, 

 Gulf of California, Mexico. 



