THE BABOONS. 253 



Many of the species of this Sub-family are arboreal ; some, 

 however, are found only in barren rocky regions ; others in 

 low jungle in the neighbourhood of villages, water-tanks, and 

 cultivated patches. Fruits and insects form their principal diet. 



THE BABOONS. GENUS PAPIO. 

 Papio, Erxleb., Syst. Regne Anim., p. 15 (1777). 

 Cynocephalus^ Lacdp., Mem. de 1'Inst. Hi., p. 490 (1801). 

 Type, P. sphinx (Geoffr.). 



The members of this genus may easily be recognised by 

 their very Dog-like face, their muzzle being greatly elongated 

 and truncated at the end, with the nostrils set in the truncated 

 termination. Their eyes are directed downwards along the 

 visage. In form and massiveness of body and in length 

 of tail they vary very much. Their fore- and hind-limbs 

 are nearly equal in length, and consequently they progress 

 on all fours, with the palms of the hands and the soles of 

 the feet flat to the ground. Their " fore-paws " are, however, 

 very efficient hands, which some species use very dexterously 

 in turning over stones in their search for food. Their feet are 

 long. Their hair is grizzled or ringed with various colours. 



The facial region of the skull is more developed in this 

 genus relatively to the flattened brain-case, than in other 

 Monkeys. In several of the species longitudinal osseous 

 ridges are developed on the bones of the upper jaws, especially 

 in the adult males, adding to the hideousness of the counte- 

 nance of these animals. The neck is elongated. The radius 

 is longer than the humerus (or arm-bone), and the elbow pro- 

 jection of the ulna (of the fore-arm), named the olecranon 

 process, is prolonged upwards beyond what occurs in Man. 

 The thumb, though relatively shorter than in Man, is much 



