— 149 — 



The voung spécimens of this Baboon are more uniformly 

 coloured, dull dirty buffish with only sparsely scattered black- 

 tipped hairs. 



The Kinda Baboon appears to difFer very much from other 

 vellow Baboons in proportions and colour. P. prniuosas has 

 according to Elliot's description a similar fur with long and short 

 hairs, but it is totally différent in coloiir. 



From the communications which hâve been given above concer- 

 ning the occurrence of the différent species and subspecies it may 

 clearly be seen, that they are not generally and uniformly distri- 

 buted in Belgian Congo. This country is thus not a zoogeo- 

 graphical unit. On the contrarv it is composed of several smaller 

 faunistic districts, which are characterised by the occurrence of 

 différent species, or at least subspecies, which substitute each 

 other. Thèse zoogeographical subdivisions, or minor faunistic areas 

 mav not be the same for ail groups of animais. They are, of course, 

 partlv constituted by the différent natural conditions, and partly 

 caused by geographical barriers, which could not be superseded by 

 the animais. In conséquence of this différent groups of animais are 

 more or less restricted with regard to their distribution. Some hâve 

 a greater facultv to adapt themselves to more or less varions condi- 

 tions of life and différent natural surroundings. And geographical 

 barriers, which cannot be surmounted by certain animais, but con- 

 stitute an absolute obstacle for their distribution, do not hinder 

 others to find their way from one place to another. The monkeys 

 are on the whole verv susceptible, and as a rule specially adapted 

 to certain natural surroundings and a certain mode of life. The 

 genuine inhabitants of the thick forest, like some Colobiis and cer- 

 tain species of Cercopithecus, will not travel far over, or not at ail 

 pass a treeless country. On the other hand the Baboons, or the 

 Cercopithecus forms of the pygerythriis séries, which like a more 

 open country, will not traverse the dark and dense forest. For ail 

 of them broad rivers are a great and often absolute hindrance. It 

 is therefore only natural that the Belgian Congo with its différent 



