Eremias. 257 



and largely borders the moutli. A very long and narrow upper 

 temporal, folhnved hy a much shorter shield; temporal scales minute 

 and granular above, large and hexagonal beneath ; a narrow 

 tympanic shield ; no auricular deuticulation. Lower eyelid scaly, 

 opaque. 



5 pairs of chin-shields, the three anterior in contact in the middle ' 

 19 gular scales in a straiglit line between the symphysis of the chin- 

 shields and the collar; no gular fold. Collar distinct only on the 

 sides. 



Scales granular, oval, smooth, 60 across the middle of the body. 

 Ventral plates broader than long, except the outer, in 10 straight 

 longitudinal and 26 transverse series. Two large preaual plates, one 

 in front of the other. 



Scales on upper surface of tibia granular, not larger than dorsals ; 

 one series of large and two of small plates on the lower surface. 21 

 femoral pores on each side. Subdigital lamellse tricarinate, 18 under 

 the fourth toe. 



Upper caudal scales rounded behind, strongly keeled, lower feebly 

 keeled ; 22 scales iu the fourth whorl. 



Head pale brownish above ; body black with 6 dorsal white streaks 

 on the nape and 5 on the body, the dorsolateral proceeding from the 

 superciliary edge ; a white lateral streak from below the eye to the 

 anterior side of the thigh, bordering the tympanum above ; limbs 

 black above, with round white spots ; tail with dark and light streaks, 

 the former 4 in number at the base, 3 further back. Lower parts 

 white. 



Measurements (in millimetres) : 



From end of snout to vent . . . .24 



„ „ ,, fore limb . . .10 



Length of head ...... 7 



Width of head 4 



Depth of head ...... 3 



Fore limb ....... 8 



Hind limb 13 



Foot 8 



Tail 36 



This species is known from a single young specimen, obtained by 

 Dr. E. Hartert at Brass, mouth of the Niger. It occupies a perfectly 

 isolated position in the genus, and I have therefore proposed to make 

 it the type of a section, under the name of Txnieremias, of which a 

 definition is given above, p. 228. 



VOL. IJ. 17 



