S8 GORILLAS AND CHIMPANZEES 



are now regarded as two species. One of them is 

 distributed throughout the entire habitat described, 

 while the other is only known south of the equator, 

 between the second and fifth parallels, and west of 

 the Congo. Both kinds are found within these 

 limits, but the variety which is confined to that 

 region is called, by the tribes that know the ape, the 

 kuht-kamba, in contradistinction to the other kind, 

 known as ntyigo. This name is derived from kulu, 

 the onomotope of the sound made by the animal and 

 the native verb kamba, to speak, hence the name 

 literally means the thing ''that speaks kulu." 



In certain points the common variety differs from 

 the kulu-kamba in a degree that would indicate that 

 they belong to distinct species, .but the skulls and 

 skeletons are so nearly the same, that no one can 

 identify them with certainty. In life, however, it is 

 not difficult to distinguish them. 



The ntyigo has a longer face and more prominent 

 nose than the kulu. His complexion is of all shades 

 of brown, from a light tan to a dark, dingy mummy 

 colour. He has a thin coat of short black hair, 

 which is often described as brown, but that effect is 

 due to the colour of his skin blending with that of 

 his suit. In early life his hair is quite black, but in 

 advanced age the ends are tipped with a dull white, 

 giving him a dingy grey colour. The change is due 

 to the same causes that produce grey hairs on the 

 human body. But there is one point in which they 

 differ. The entire hair of the human becomes white 

 with age, while only the end of it does so in the 



