396 



TI-n<l GEUIBE OF THE 'GUUAQOA. 



PLATE XXII. Fig. A. 



BB,mnAS BBENCHLEYI. 



The snpranasals meet, separating the prasfrontals from the 

 rostral ; jjrsefrontals not confluent ; a small azygos sliield between 

 the jjost frontals. Six upper labials in front of the infraocular, 

 which forms a part of the free margin of the lip. The sixth 

 labial, only aboiit half the size of the infraocular. Eyelid 

 entirely scaly. Collar formed by eight scales subequal in size. 

 Ventral scutes forming 31 transverse and 12 longitudinal series. 

 Prseanal region covered with small scales. Fore-limb reaching 

 nearly the extremity of the snout ^Yhen stretched forwards ; hind- 

 limb extending to the axil of the fore-limb. Upper parts brownish 

 olive, with an indistinct series of light-coloured ocelli on each side 

 of the back ; , a well-defined whitish band commences behind the 

 eye, j)asses through the tympanum and runs along each side of the 

 body to the axil of the hind-leg. Hinder side of the thighs with 

 a few whitish ocelli on a black groimd. 



A single adult female was obtained in a district of Mongolia, 

 called ' the Land of Grass.' 



Length of the head to the eye 



„ „ tympanum 



„ „ collar . 



Distance between collar and vent . 

 Length of fore-limb 



„ third and fourth fingers . 



„ hind-limb 



„ third toe 



„ fourth toe 



„ tail 



mm. 



4-0 



10 



16 



35 

 , 18 

 . 5 

 . 31 

 . 7 

 , 10 

 . 80 



