286 SAURIA. 



with small scales, flattened beneath, with a sharp edge more or less 

 denticulated, and a central series of large plates or scutellae. 



Syn. — Doi^yura, Gray, Catal. Lizz. Brit. Mus. 1845, 156. 



Observ. — This genus is perhaps more closely allied to Hemidactyhis 

 than to any other of the same group, for, the chief differences consist 

 simply in the uniform granular scales which cover the upper surface of 

 the body, and in the shape and structure of the tail. The latter is 

 very much depressed, superiorly convex, with sharp lateral edges, often 

 denticulated, whilst its inferior surface is quite flattened, resembling 

 the same organ in Crossurus platyarus. The central series of large 

 plates, or scutellae, are met with in other genera. We find no femoral 

 pores upon the specimens now before us : so that if their absence 

 prove to be a constant fact, we shall have another character to dis- 

 tinguish Doryura from Hemidaetylus. 



DORYURA VULPECULA, Grd. 



(Plate XXIV, figs. 17-24.) 



Char. spec. — Capite depresdusculo, antice suhacuto. Collo tumido. 

 Tergo grmmlis minimis aequalibus, et cauda parvis squainis, coopertis. 

 Scutis mentalihus in quadratum dispodtis, antice lahialibiis contiguis. 

 Cauda minuente, a latere laevi. Supra cinerea vel fasco-fiava ; infra 

 pallidescente ; nonnunquam alho punctata. 



Spec. Char. — Head quite depressed, and subacute anteriorly. Neck 

 swollen. Back covered with minute, equal granules, and tail with 

 small scales. Four mental shields, disposed upon a square, ante- 

 riorly contiguous to the labial plates. Tail tapering, nearly even 

 laterally. Grey or yellowish-brown, lighter beneath than above, 

 and occasionally spread over with pale dots. 



Syn.— X>oryMm vulpecula, Grd. in Proc. Acad. Nat. Sci. Philad. November, 1857. 



Observ.— By its coloration, this species reminds us of D. howringi, 

 from which it chiefly differs by the presence, on the tail, of small 



