CLASS REPTILIA. 



Black UromastyoB. Uromastyw Niger, Merrem. Stellio 

 Niger, Daud. 



Tail twice as long as the body, with twenty-seven rings of 

 spines ; toes long, sub-depressed ; scales small, rhombic. 



HardwicWs Uromastyw. Uromastyw Hardwickii, Gray, 

 Zool. Jour. U. Reticulatus, Cuv. R.A. 



Greenish, marbled with black dots; a large black spot in 

 front of each thigh. Hindostan. 



Cuvier indicates Uromastyw Grisseus, from New Holland, 



** Tail with riiigs of small armless spines. Lecolepis, 

 Cuv. Cynosaura, Schegel. 



Bell's Uromastyw. Uromastyw Bellii, Gray, Zool. Jour. 

 Lecolepis Guttatus, Cuv. Guerin. Icon, t. 7- L. Guttata 

 Lineatus, Mus. Paris. Cyn. Punctatus, Schegel. Mus. 

 Leyd. 



Olive ; back, with three lines alternating with black edged 

 white spots ; limbs white-eyed ; sides black spotted. 



Reeves Uromastyw. Uromastyw Revesii, Gray, Mus. Brit. 

 Olive, with a series of bright red spots down each side. 



Spotted Uromastyw. Uromastyw Maculatus, Gray. Leco- 

 lepis Maculatus, Cuv. Mus. Par. 



Pale brown ; head, with a black streak from the eye to the 

 neck ; back, legs and tail with six rows of oblong black spots, 

 sides of the legs black netted. 



Order II. Ophiosauei. 

 Mouth not dilatable, skin covered with regular equal scales. 



Section I. 



Body with equal similar scales, above and below, and a 

 compressed line of small scales on each side ; tongue 

 short, contractile, two cut. Ptygopleura. 

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