ORDER PRIMATES. 



THE BABOONS, MANGABEYS, AND MACAQUES 



(Continued). 



THE MACAQUES. GENUS MACACUS. 

 Macaais, Lacep., Mem. de I'lnst., iii., p. 450 (1801). - 



This genus embraces a large number of species which are 

 characterised by having a thick-set body and short stout limbs, 

 with the thumb set backward. The muzzle is considerably 

 produced and rounded, but the nose does not extend as far 

 out as the plane of the upper lip ; the nostrils open in advance 

 of its termination, and are directed obliquely outwards and 

 downwards ; their cheek-pouches are large, and their lips thick 

 and protrusile ; their eyes are approximated, and look out 

 from below thick and prominent superciliary ridges ; their ears 

 are naked and applied flatly to the sides of the head and 

 their hind upper angle is pointed; their callosities, which extend 

 with age, are often surrounded by a portion of the buttocks, 

 which is always nude. The tail is long, short, tufted, or reduced 

 to a mere tubercle, and it may be quite invisible externally. 

 Some have the hair of the head long, and radiating in all direc- 

 tions ; others have the face encircled by a kind of mane. In 

 some northern forms, the whole body is covered with a woolly 

 fur, as a protection against cold. 



3 — V. 2 B 



