59 



the back of the head and on the sides of the neck are more 

 strongly marked ; but it must be borne in mind that Olivier's 

 lizard has not the freshness of these recently captured speci- 

 mens, which are in excellent pi-eservation. I have never met 

 •with this species in Lower Egypt. 



Agama I'lATiMACTJi.ATA, Eiippell. 



3 cJ and 2 ? . Near Medina. 



Body moderately elongate, not depressed ; head large, stoutly 

 and broadly cordate ; canthus rostralis short, not deiined, 

 anterior to the nasal shield, which is circular with the nostril 

 directed upwards and backwards and perforated in the hinder 

 part of the shield internal to or on the line of the canthus ros- 

 tralis ; ear considerably smaller than the eye-opening, with a 

 fringe of pointed scales along its upper border ; upper surface 

 of the head in adults covered with convex scales, especially large 

 along the mesial line; a number of large, more or less obtusely 

 keeled scales behind the eye, more or less continuous with those 

 on the upper part of the post-temporal region, on which there 

 are a few short, strongly keeled, non-mucronate spiny scales. 

 Body covered above with moderately sized, unequal, imbricate, 

 more or less subacuminate, but not mucronate, feebly keeled 

 scales, those on the sides about half the size of the dorsal scales, 

 and more or less obtusely keeled ; 77 to 95 scales round the 

 middle of the body ; ventral scales keeled or nearly smooth. 

 Limbs well developed, covered with regular keeled imbricate 

 scales of moderate size. The wrist reaches to the anterior border 

 of the eye or to the nostril, and the tip of the fourth toe extends 

 to the ear or nearly so. Tibia shorter than the skull in the 



