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STUDIES, SCIENTIFIC AND SOCIAL 



picking up small bits of biscuit, nuts, &c., much as an 

 elephant does with the tip of his trunk. The species here 

 figured is a native of the Upper Amazon, and as I had one 

 alive for some weeks I had a good opportunity of observing 

 its habits, as above described. (Fig. 85 on preceding page.) 



We now come to a group of monkeys whose prehensile 

 tail is of a less perfect character, since it is covered with 



Fig. 30.— white-cheeked sapajou (Cebus lunatux), 



hair to the tip, and is of no use to pick up objects. It 

 can, however, curl round a branch, and serves to steady 

 the animal while sitting or feeding, but is never used to 

 hang and swing by in the manner so common with the spider 

 monkeys and their allies. These are rather small sized 

 animals, with round heads and with moderately long tails. 

 They are very active and intelligent, their limbs are not 

 so long as in the preceding group, and though they have five 



