i6 4 



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 leaving Peru, as a 

 new species, under the name of Bartlett's spider-monkey (A. bartletti). It proved, 

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



THE VARIEGATED SPIDER-MONKEY ( liat. 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. There is a band 

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

 while the under surface of the tail, the under parts 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. 



