46 MAMMALIA. 



MACACUS, or MACAQUES. 



All the animals of this denomination have a fifth 

 tubercle on their last molars, and callosities and cheek 

 pouches like a Guenon. The limbs are shorter and 

 thicker than in a Semnopithecus ; the muzzle more pro- 

 Ejecting, and the superciliary ridge more inflated than in 

 either the one or the other. Though docile when young, they become un- 

 manageable when old. They all have a sac which communicates with the 

 larynx under the thyroid cartilage, and which, when they cry out, becomes 

 filled with air. Their tail is pendent, and takes no part in their motions ; 

 they produce early, but are not completely adult for four or five years. 



Sim. silenus and leonina, L. (The Maned Macaque.) Black ; ash- 

 coloured mane and whitish beard, which surround the head. From Ceylon. 

 Some of the Macaques are distinguished by a short tail. 

 M. rhesus. (The Pig-tailed Baboon.) Greyish; a fawn-coloured tinge on 

 the head and crupper, sometimes on the back ; face flesh-colour ; tail reaching 

 below the hamstrings. From Bengal. 



INDUS, Cun. 

 The Inui are mere Macaques, which have a small tubercle in lieu of a 



tail. 



CYNOCEPHALUS, C. * 



The Dog-headed Monkeys, together with the teeth, cheek-pouches, and 

 callosities of the Inuus, Cuv., have an elongated muzzle truncated at the 

 end, in which the nostrils are pierced, giving it a greater resemblance to that 

 of a dog than of any other monkey ; their tail varies in length. They are 

 generally large, ferocious, and dangerous animals ; found mostly in Africa. 



C. papia, Desm. ( The Guinea Baboon.) Yellow, verging more or less on 

 a brown ; tufts of the cheeks fawn-coloured ; face black ; tail long. They are 

 found of various sizes, owing probably to the difference of age. When full 

 grown, they are frightful from their ferocity and brutality. From Guinea. 

 There ^s another species, S. nigra, Cuv., which should be distinguished from 

 other Cynocephala; it is totally black, and without a tail, but the head 

 resembles that of the other species. The 



MANDRILLS, 



Of all the monkeys, have the longest muzzle (30); their tail is very short; 

 they are brutal and ferocious ; nose as in the preceding. 



Sim. muimon and mormon, Lin. (The Mandril) Greyish brown, inclining 

 to olive above ; cheeks blue and furrowed. The nose in the adult male be- 

 comes red, particularly at the end, where it is scarlet, which has been the 



Cynocejthalus, clog's Lead. 



