CLASS REPTILIA. 



Mutable Agama. Ag. Ruderata, Oliv. Voy. t. 29. Trapelus 

 Mutabilis, Cuv. T. j^gyptiacus, Geof. Rept. Egypt, 

 t. 5. Ag. Orbicularis, Daud. t. 45. Ag. Deserta, Licht. .'' 



Tail one-half as long again as the body ; scales of the head 

 convex ; of the body unequal, irregular. Egypt. Mus. Brit. 

 Trap. Savignii, Ardouin. Savigny Rept. Egypt, f. 3 and 4, 

 scarcely appears to differ. 



RuppeVs Agama. Agama Sinaita, Ruppel. t, 3. Agama 

 Straminea. Mus. Berl. 



Brownish grey, with paler spots ; dorsal scales unequal, 

 slightly keeled, margined ; edge of ear one-spined ; a scaleless 

 pit before the shoulder. Egypt. Perhaps same as former. 



Sand Agama. Agama Arenaria, Van Heyden. 



Yellowish grey, spotless ; dorsal scales equal, slightly 

 keeled, not margined ; edge of ears one-spined ; but pit before 

 the shoulder with scales. Egypt. 



Aral Agama. Ag. Aralensis, Licht. Lac. Sanguinolenta, 



Pall..? 



Body dirty straw colour ; reddish, spotted ; scales equal, 

 semicircular, keeled, ending in a spine ; tail black ringed. 



Slender Agama. Agama Agilis, Oliver. Voy. Savigny 



Rept. Egypt, f. 5. Agama Isodactyli. Mus. Berl. 

 Scales small, equal, nearly smooth ; tail long, slender, black 

 banded ; legs, especially the hinder, long and slender. Egypt 



d. Head round depressed ; ears covered ; claws sharp ; 



bacJc and tail with irregular scales. Phrynocephalus. 



* Margin of lips produced ; toes fringed ; claws long. 



Eared Phrynocephale. Ph. Auritus, Kaup. Lac. Aurita, 

 and Lac. Mystacea, Pallas. Lac. Lobata. Shaw. 



Brown with a small lobe on each side the neck. 

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