THE SPIDER-MONKKYS. 231.) 



are also annually killed for food, their flesh being held in high 

 esteem by the natives. 



V. THE WHITE-WHISKERED SPIDER-MONKEY. ATELES 



MARGINATUS. 



Aides marginatus (nee Humb.), Geoffr., Ann. Mus., xiii., 



p. 92, pi. 10 (1809) ; Kuhl, Beitr. Znol., p. 24 (1820) ; 



Gray, Cat. Monkeys Brit. Mus., p. 43 (1870); Schl., 



Mus. Pays Bas, vii., p. 174 (1876). 

 Coaita a front blanc, femelle, Fr. Cuv., Hist. Nat. Mamm., 



livr. Ixii. (Avril, 1830). 

 Ateles frontalis, Bennett, P. Z. S., 1831, p. 38. 



Characters. Similar in size and coloration to A. faniscus. 

 Body lean ; hair moderately long and coarse. Face naked, 

 black, except the skin round the eyes, which is flesh-coloured ; 

 general colour black ; under surface of body and inner sides of 

 limbs, ashy-grey. It differs from A. paniscus by having the 

 forehead, crown of head, a spot on each side of the nose, and 

 the whiskers, white. 



A specimen in the British Museum has four pre-molars in 

 each upper jaw, instead of the normal three of the Cebida. 



Distribution. This species was discovered by Humboldt on 

 the banks of the Santiago river. Mr. Bates says " it is never 

 met with in the alluvial plains of the Amazons," nor, he believes, 

 on the northern side of the great river-valley, except towards 

 its head-waters near the Andes. 



Habits. According to Von Humboldt, this Spider-Monkey 

 known as the " White-Whiskered Coaita " is very fierce and 

 libidinous. Mr. Bates encountered this large and handsome 

 species on the Cupari river, a tributary of the Tapajos, one 



