200 



Annals of the South, African Museum. 



Parietal foramen aud pterygoid teetli present. 



G-ular scales much enlarged towards the collar, 18 to 21 between the 

 symphysis of the chin- shields and the median collar-plate; no gular 

 fold. Collar serrated, composed of 7 to 9 plates. 



Scales granular, round or squarish, smooth, enlarged on the 

 lower part of the side and passing gradually into the ventral 

 plates ; 42 scales across the middle of the body. Ventral plates 

 in 6 or 8 longitudinal and 28 or 29 transverse series.* Two large 

 praeanal plates, one befoi'e the other, and a single semicircle of 

 smaller plates. 



A series of 7 or 8 transversely enlarged plates on the lower surface 

 of the forearm. Scales on upper surface of tibia smaller than dorsals. 

 10 to 12 femoral pores on each side. 17 or 18 lamellar scales under 

 the fourth toe. 



Upper caudal scales rather broad, slightly oblique, strongly keeled, 

 posterior border very obtusely pointed or rounded. 

 The two specimens examined differ in the coloration. 

 The smaller, the type of N. emini, appears to be a half-grown male. 

 Pale reddish brown above, with very small black dots and a faint 

 trace of a light vertebral streak ; a black lateral band from the eye 

 to the root of the tail, edged with a light streak above and beneath 

 and bearing a series of white spots with a tendency to run together 

 into a streak ; limbs with small dark brown spots or vermiculations ; 

 tail reddish ; lower parts white. 



The larger specimen, an adult male of stouter habitus, agrees better 

 with Bolkay's figure of N. ukerewensis. Dark brown above, with an 

 interrupted white vertebral streak ; five series of small, white, black- 

 edged spots on each side, the upper and lower corresponding to the 

 light streaks of the preceding specimen ; hind limbs with small white, 

 black-edged ocellar spots ; lower parts white. 

 Measurements (in millimetres) : 

 From end of snout to vent 



,, fore limb 



Length of head ..... 



Width of head 



Depth of head ..... 



Fore limb ...... 



Hind limb . . . , 

 Foot ... 

 Tail 





* 32 in the type of N. ukerewensis, according to Bolkay. 



