82 3. IGUANIDJE 



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. 



Distribution. 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 salis. 



Type. No. 50504, Mus. Calif. Acad. Sci.j Joseph R. 

 Slevin, collector, May 21, 1921. 



Ty-pe locality. Near Puerto Bellandro, Carmen Island, 

 Gulf of California, Mexico. 



