MAMMALIA. 



431 



duced to tubercles, and destitute of all muscular power. The 

 Baboons go on all-fours, live among rocks and mountains, and 

 in some cases, when they associate in troops, are more than a 

 match for the fiercest beasts of prey. *' They are arranged 

 in two genera (Papio and Cynocephalus), respectively confined, 

 with one or two exceptions, to the continents of Asia and 

 Africa." " The lofty mountains of Abyssinia and of South 

 Africa are tenanted by numerous troops of these animals 

 {Cynocephals), which even appear to prefer the more rigorous 

 climate of these elevated regions to the hot and sultry forests 

 of the lower plains." 



The Monkeys also have cheek pouches and callosities, but 

 their tails are long and muscular, and they are pre-eminently 

 a sylvan race. They walk on all- fours, and their long tails 

 become powerful and efficient instruments in guiding theii 

 movements, and in maintaining, like the pole of the rope- 

 dancer, their equilibrium during their rapid and varied evo- 

 lutions. The face presents in different species a great diversity 

 of colour, being white or black, blue or red, flesh or copper- 

 coloured; and, added to their grimaces and imitative pro- 

 pensities, gives to them in our 

 eyes the fantastic appearance 

 that has become proverbial. 



The Apes have neither tails 

 nor cheek pouches; and the 

 callosities mentioned exist only 

 in a rudimentary form, or are 

 altogether wanting. Their pace 

 is semi-erect, and in their 

 native woods they walk on two 

 legs even along the branches, 

 their long ai-ms compensating 

 for the want of a tail in steadying 

 and directing their motions. 

 With the exception of the 

 Chimpanzee of Western Africa 

 [Fig. 3-tl), they are limited to 

 the great islands of the Indian 

 Archipelago. The various anec- 

 dotes which are related of the 

 Chimpanzee and the Orang 

 Outan evince on the part of Fig. 84i.— chimpasxbk. 



