732 MR. G. A. BO ULENGER ON ADDITIONS TO THE LIZARD [T)eC. 4, 



Cham^saura MIOPROPUS. 



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

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

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

 pore. Head-shields and scaling of the body as in C. anguina. 

 Yellowish, with four pale brown stripes, the median pair edged 

 with black on the outer side. 



millim. 



Total length 550 



Head 15 



Tail 430 



Pore limb 1 



Hind limb 7 



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

 lected by Mr. A. Carson. 



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

 mediate between 0. cmea and C. anguina. The one now established 

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



The five species of Chamcrsaura may be distinguished as 



follows : — 



A. Both pairs of limbs very distinct. 



Limbs pentadactyle ; 28 scales round the body 1. tenea,Wgm. 



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



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



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



Fore limb distinct ; 26 scales round the body 4. miopropas, Blgr. 



No trace of fore limb externally ; 22 scales round the 



body 5. macrolepis, Cope. 



Diploglossus bivittatus. (Plate XLVIII. fig. 5.) 



Head slightly distinct from neck ; snout moderate, with obtuse 

 canthus ; ear-opening small. A large azygous prefrontal, 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, followed 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 with 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 with black bars ; throat whitish ; belly greyish ; taij 

 salmon-pink. 



