732 MR. G. A. BO XJLENGER ON ADDITIOKS TO THE LIZABD [DeC. 4, 

 ChAM^SAITHA SnOPEOPTTS. 



Fore limb reduced to a minute clawed vestige, no longer than a 

 scale ; hind limb much more developed, nearly half as long as the 

 head, ending in a single claw, as in C. ancjuina. One femoral 

 pore. Head-sliields and scaling of the body as in C. anrjuma. 

 Yellowish, with four pale brown stripes, the median paii- edged 

 with black on the outer side. 



millim. 



Total length 550 



Head 15 



Tail 430 



Fore limb 1 



Hind limb 7 



A single specimen from Fwambo, British Central Africa. Col- 

 lected by Mr. A. Carson. 



In the first Eeport I described a species (C didactyla) inter- 

 mediate between 0. (pnea and C. anguina. The one now established 

 fills up the gap between C. anguina and C. macrolepis. 



The five species of Ohamcesaura may be distinguished as 

 follows : — 



A. Both pairs of limbs very distinct. 



Limbs pentadaetyle ; 28 scales round the body 1. esnea,Wgm. 



Limbs didactyle; 26 scales round the body 2. didactyla, Blgr. 



Limbs monodactyle ; 26 scales round the body 3. a7iguina,'L. 



B. Fore limb very minute or absent ; hind limb monodactyle. 



Fore limb distinct ; 26 scales round the body 4. miopropiis, Blge. 



No trace of fore limb externally ; 22 scales round the 



body 5. macrolepis, Co^e. 



DiPLOGLOssus BiviTTATUs. (Plate XL VIII. fig. 5.) 



Head slightly distinct from neck ; snout moderate, mth obtuse 

 canthus ; ear-opening small. A large azygous prsefrontal, in 

 contact with the frontal and the first and second supraoculars, in 

 contact with the second loreal, and separated from the rostral by 

 two pairs of shields ; frontal twice as long as broad ; parietal 

 separated from the frontal and supraoculars by two shields ; nasal 

 in contact with the rostral, follo\^-ed by two superposed postnasals, 

 two loreals, and a praeocular ; rostral a little narrower than the 

 symphysial ; the suture between the sixth and seventh upper 

 labials falls below the centre of the eye ; three chin-shields on 

 each side, first in contact \^'ith the second and third lower labials. 

 Scales smooth, 33 round the middle of the body. Limbs short, 

 not meeting when adpressed ; digits moderate, claws exposed. 

 Tail cylindrical, covered with smooth scales. Black above, with 

 two greenish-white stripes from the end of the snout, where they 

 unite, to the base of the tail, passing above the eye ; lips and sides 

 of neck whitish vdth black bars ; throat whitish ; belly greyish ; tail 

 salmon-pink. 



