CLASS REPTILIA. 



scales rhombic keeled, mucronate. Variety, scales smaller 

 Mexico. Mus. Brit. 



jfEneous. Tj'opidolepis. Trop. j^neus, Gray. Sclerop- 

 horus, Wiegmann. 



Shining coppery ; scales ovate, lanceolate, keeled, toothed. 

 Mexico. 



Banded Tropidolepis. Tr'op Scalaris, Gray. Sclerop- 

 horus, Wiegmann. 



Grey brown ; side band white, with white edged brown 

 semi-lunar spots ; scales ovate, keeled entire. Mexico. Mus. 

 Brit. 



BeWs Tropidolepis. Trop. Bellii, Gray. 



Metallic green, scales of the back and upper part of the 

 body, and tail long, strongly keeled, dagger pointed, the 

 keels forming 14-16 ridges ; of the belly broad, blunt, those 

 of the limbs and tail smaller, becoming larger near the end ; 

 length 10 inches. Mus. Bell. 



Banded Tropidolepis. Trop. Fasciatus, Gray. 



Pale brown ; back with wavy cross bands ; head varied, pale 

 and dark brown ; scales of back tail and limbs moderate 

 keeled, keels 18-20; continued, oblique, entire ; of the limbs 

 and tail smaller. Mus. Bell. 



V. Head, short ; round, dilated behind, covered with 

 convex scales, and crowned with spines. Body and tail 

 short, depressed, covered with irregular Tteeled spines ; belly 

 with larger scales, fi'inged on each side ; pores distinct, 

 palate toothless. Phrynosoma. Weigmann. America. 



Douglass'' Toad Lizard. Phrynosoma Douglassi, Gray. 

 Agama Bell. Lin, Trans, good. 



Yellow ; brown spotted. Mus. Brit. 

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