— 146 — 



tion. It is, however, very difficult to distinguish related forms of 

 Baboons by means of females or immature spécimens only. In this 

 case I must regard tbe resuit as less happy. It must also be born 

 in mind that ttie tvpe localitv for P. tesscllatus is the neighbourinsi; 

 province Ankole of Uganda, the fauna of which also in other 

 respects is similar to that of Rutshuru. 



Papio nigeriae Elliot. 



One cf ad., n" 1285, Bafuka, Uele; and a young spécimen, 

 n° 1286, from the same locality. 



This Baboon is paler than the former, the mottled appearance is 

 produced bv the black tips and the broad subapical bands which 

 hâve a dull yellovvish tint, something between a pale shade of 

 chamois and cream. Below the subapical ring the hairs are dark 

 brown, but the long hairs hâve also a second pale ring. The arms 

 are like the back, but the legs are more uniformly yellowish 

 brown. On hands and feet black is predominating. 



Total length of skiill 225 mm. 



Condj'lobasal length of skuU .... 171. 5 » 



Heosel 1585 » 



Zygomatic width . . 131 » 



Palate leiigth 104.5 * 



Smallest postorbital width 61 » 



Least interorbital width 15.7 » 



Breadth of braincase 86.5 » 



Length of nasal mesially 86 5 » 



Width of snout across first premolar . 57 » 



Distance betweeu orbit aud gnathion . 127.3 * 



Leugth of upper molar séries . . . . 56.2 » 



From the skull oi P. tessellatus this one differs by its much longer 

 snout and the much more evenly sloping facial Une from the super- 

 ciliary ridge. The latéral pits on the sides are also much shallower 

 in this one, the latéral walls of the maxillary being almost straight 

 vertical. The rainus adscendens of the lower jaw is more sloping 



