222 REPTILES. 



2 Others, and with a very small nuchal crest above. Body short, 

 broad, angular. Scales large, rhombic, keeled. Tail moderate, 

 conical, with whorls of large strong spinose scales. Femoral pores 

 none. 



The Brazilian Oplurus. Oplurus Braziliensis. Cordylus 

 Braziliensis, B. Laur. Syn. 32. Seha, i. 152, t. 97,/. 4, Shaw, 

 Zool. iii. t. 69. Uromastyx cyclurus, Merrem, Tent. 56. Oplu- 

 rus torquatus, Cuv. R. A. ii. 46. 0. Sebae, Durn. et Bib. E. G. 

 iv. 361. Tropidurus Cuvieri, Gray, Griff. A. K. ix. 41. Weigm. 

 H. Mex. i. 18. 



Scales of the back keeled ; front edge of the ear toothed ; olive, 

 with a black band across the shoulders. 



a. Adult, in spirits. With 3 cross bands, the front one narrower. 



Brazils. Presented by Capt. Sir Edward Belcher. 

 h. Adult, in spirits. With only I (the central) cross band. Brazil. 

 c. Young, in spirits. Back with black cross bands, the front 2 



white-edged behind. Brazil. Presented by Capt. Sir Edward 



Belcher, R.N. 



41. Strobilurus, Weigm. 



Head depressed, with numerous flat shields, with a large in- 

 terparietal plate, surrounded by many small shields. Nostrils 

 round, above the obscure face-ridge, in the middle of an oblong 

 nasal shield. Eyebrows covered with small flat shields. Palate 

 not toothed. Ear nearly superficial, front edge toothed. Neck 

 with an oblique plait before each shoulder, branching into many 

 small plaits on each side of the neck. Body rather 3-sided, scales 

 moderate, imbricate ; of the back keeled, foiming oblique lines 

 converging to the dorsal line, which has a low denticulated keel ; 

 of the belly smooth. Tail moderate, covered with large spine- 

 bearing scales, depressed at the base, and with 7 series of spines 

 above and large spines beneath, rather compressed at the end. 

 Femoral pores none. Toes slender, unequal, with a series of den- 

 ticulated keeled scales beneath. 



The Strobilurus. Strobilurus torquatus, Weigm. H. Mex. 

 18. Dum. et Bib. E. G. iv. 354. 



Olive ; head and neck black varied, with a broad black cross 

 band on each side, in front of the shoulder ; tail depressed, and 

 with 7 longitudinal series of large spinose scales above ; the head- 

 shields small, smooth. 



a. Stuffed. Brazils. Presented by Mrs. Parker. 



42. Uraniscodon, part, Kaup. Uperanodon, Dum. et Bib. 

 Plica, Gray. Hypsibatus, Wagler. Calotes, Schinz. 



Head short, rounded in front, covered with unequal plates ; 

 occipital plate large ; superocular shields large. Nostrils lateral. 



