i64 



APES AND MONKEYS. 



specimens obtained on the Rio Negro. Later on, however, Dr. Gray described a 

 monkey, brought by Mr. Bartlett from the River Tigri, which flows from the north 

 into the Amazon soon after it takes its great easterly bend on k^aving Peru, as a 

 new species, under the name of Bartlett 's spider-monkey {A. bartlett i). It proved, 

 however, to be identical with the variegated spider-monkey of the Rio Negro. 



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THE VAHIEGATED SPIDEB-MONKEV (J nat. Size). 



The variegated spider-monkey is characterised by its thick, long, and soft hair. 

 The general colour of the fur is black, but the cheeks are white. Thei-e is a band 

 oF bright reddish-yellow passing across the forehead a little distance above the eyes ; 

 wliile the under surface of the tail, the under pai-ts of the body, and the inner sur- 

 faces of the limbs are yellow in the male and greyish-white in the female. With 

 the above variations in colour it will readily be imagined that the male of this 

 species is a striking animal. In addition to the more sombre tints of the female, 

 the lines of separation between the colours are less marked. 



