228 APES AXD MONKEYS 



is tipped with pale white. This is so even in early youth. 

 With acre the white encroaches, until in extreme asre the 

 animal becomes quite gray. The top of the head is covered 

 with a growth of short hair. In certain specimens this 

 crest is of a dark tan color. It looks almost like a wig. 

 This mark seems to be peculiar to certain localities. It is 

 uniform among those captured in the Ferran Yaz basin. 



A white trader living on Ferran Yaz Lake claims to 

 have seen a gorilla which was perfectly white. It was 

 said to have been seen on a plain near the lake in com- 

 pany with three or four others. It was thought to be an 

 albino. In my opinion it was only a very aged specimen 

 turned gray. A few of them have been secured that Avere 

 almost white. It is not, however, such a shade of white 

 as would be found in an animal whose normal color is 

 white. I cannot vouch for the color of this ape seen on 

 the plain, but there must have been something peculiar in 

 it to attract attention among the natives. They regarded 

 it as something very extraordinary. 



So far, only one species of this ape is known to science ; 

 but there are certain reasons to belieA'e that two species 

 exist. In the forest regions of Esyira the natives described 

 to me another kind of ape, which they averred was a half- 

 brother to the gorilla. The}" know the gorilla by the 

 native name njiua, and the other type by the name ntyii. 

 They do not confuse this with the native name ntyigo, 

 which is the name of the chimpanzee. Neither is it a 

 local name for the kulu-kamba. All of those apes are 

 known to the natives. They described in detail, and quite 

 correctly, the three known kinds of ape. In addition they 



