338 SAURIA. 



what larger, and slightly keeled under the forearm. The scales on 

 the upjDer surface of the fore limbs being conspicuously keeled, some- 

 what acuminated, though smaller than on the back. The palms of the 

 hands and soles of the feet are densely covered with small, acute, and 

 keeled scales, giving these surfaces quite a rough appearance. The 

 fingers and toes are scaly above and sideways, and transversely plated 

 beneath, the fingers being nearly smooth above, whilst the toes are cari- 

 nated: the inferior aspect of both fingers and toes being multicarinated. 

 The nails are compressed, curved, and acute. The scales on the infe- 

 rior surface of the tail are somewhat smaller than on its upper surface, 

 more lanceolated, and less conspicuously keeled. 



The color of the adult is olivaceous-brown above, with narrow, 

 transverse, blackish bands across the back, covering but one scale, 

 margined with a lighter hue. The head is variegated with black; the 

 limbs and tail are unicolor. Beneath, the tint is yellowish ; the chin 

 and throat exhibiting interrupted, longitudinal, black lines. 



The young, as colored from life in May, 1839, exhibits a greyish- 

 brown hue along the dorsal region, with four longitudinal series of 

 small, subtriangular, brownish-black spots, with their bases directed 

 forwards, and contiguous sideways, so as to constitute, as it were, 

 transverse bands or fasciae ; three series of white, intervening spots 

 are also observed behind and contiguous to the dark ones. A lateral 

 series of brownish, much less distinct spots, extends along the upper 

 portion of the flanks, which otherwise exhibit a light greyish hue, 

 variegated with brown and pink. The base of the tail is transversely 

 barred with blackish-brown, whilst it is unicolor posteriorly. The 

 upper surface of the limbs is greyish, transversely barred or macu- 

 lated with darker blotches. The upper surface of the head is reddish- 

 brown ; its lower surface is whitish, with meandriform lines of black. 

 The belly is yellowish-white, obscurely maculated : the spots fading 

 away over the chest ; the belly, limbs, and tail being unicolor. The 

 posterior aspect of the thighs is variegated with black and whitisli 

 spots. 



Loo. — Very common in the environs of Valparaiso, Chile. 



Plate XXVIII, fig. 17, represents Liolaemus nitidiis, size of life ; 

 It is the type of Gravenhorst's X. lineatus. 



