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. 
LHe BABOONS: GENUS. .PAPIO, 
Papo, rxleb., Syst. Regne Anim., p. 15 (1777). 
Cynocephalus, Lacép., Mem. de l’Inst. iil., 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 paims cf the hands and the soles of 
the feet flat to the ground. Their ‘‘ fore-paws.” are, howevez, 
very efficient Zands, 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 
tidges are developed on the bones of the upperjaws, 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 Aumerus (or arm-bone), and the elbow pro- 
jection of the w/nza (of the forearm), named the olecranon 
process, is prolonged upwards beyond what occurs in Man. 
The thumb, though relatively shorter than in Man, is much 
