54 REPTILES. 



The Bluish Gerrhonote. Gerrhonotus coeruleus, Weigm. 

 Herp. Mex. 31. 



Scales of the back and sides equally keeled; dusky blue, black- 

 spotted; head, throat and belly blackish ; sides black and white 

 varied. 



Inhab. Brazils. Mus. Berlin. 



Burnett's Gerrhonote. Gerrhonotus Burnettii, Gray^ 

 Beecheifs Voy. Rept. 96, «. 31,/. 1. Ann. N. H. i. 390. 



Pale brown, sides with 10 or II oblique brown cross bands, 

 with white tips to the scales; scales of the back and sides equally 

 keeled, forming regular ridges ; supranasals 2 pair, equal, rather 

 transverse; internasal, frontonasal and frontoparietal moderate, 

 equal ; ventral shields 12-rowed ; tail elongate, compressed at the 

 base, brown-varied. 



a. Adult, in spirits. Tail reproduced. S. America. Presented 

 by Sir William Burnett, R.N. 



Weigmann's Gerrhonote. Gerrhonotus Weigmannii. 



Pale brown, sides with oblique brown cross bands, with white 

 tips to the ends of the scales ; scales of the back and sides equally 

 keeled, forming regular ridges; head broad behind, supranasals 2 

 pair, front small, upper larger, transverse; internasal broad 6-sid- 

 ed ; frontonasal and frontoparietal moderate, subequal ; ventral • 

 shields 12-rowed; tail elongate, brown- varied, compressed at the 

 base, angular at the end. 



a. Adult, in spirits. Mexico ? \ ' 



15. Elgaria, Gray. 



Head pyramidical, shielded ; internasal large, rhombic ; su- 

 pranasals 2 pair, very narrow, band-like ; fronto-nasal and fron- 

 toparietal 6-sided, equal ; the occipital plates scale-like. Scales 

 of the back and tail slightly keeled, armless. Limbs weak. Toes 

 5-5. Tail slender, tapering, much longer than the body. 



The Elgaria. Elgaria Kingii, Gray, Ann. N. H. i. 390. 

 Gerrhonotus Kingii, Bell, MSS. G. multifasciatus, Dum. et 

 Bib.E. G.y. 401. 



Brown, with 15 white-spotted brown bands, and numerous half- 

 rings on the tail ; scales of the back obscurely keeled, of the sides 

 smaller; ventral shields 12-rowed. 



a. Adult, in spirits. Mexico. Presented by Thomas Bell, Esq. 



16. Bahissia, Gray. Gerrhonotus, part, Weigm. 



Head pyramidical ; shields convex ; supranasals 2 or 3 pair, 

 square, contiguous ; internasal none ; frontonasal and fronto-pari- 

 etal square ; occipital shields keeled. Scales of the back round, 

 keeled and unarmed. Toes 5-5. Tail round, as large as the body. 



