MONKEYS 



355 



woolly monkeys, as typified 

 by Lagothrix hiunboldti, are 

 distinguished from the last 

 by the longer tail, which is 

 naked on the lower side of the 

 pointed tip, and bears on its 

 gripping surface ridges and 

 furrows similar to those on 

 the human hand, so that it 

 does not easily slide off any 

 smooth object it may clasp. 

 They are likewise character- 

 ised by the woolly nature of 

 their coat, a feature to which 

 they owe their name. A 

 connecting link between the 

 woolly monkeys and the 

 spider-monkeys is formed by 

 the woolly spider - monkey 

 (Eviodes arachnoides), an 

 animal of much more slender 

 build than the former. 



The spider - monkeys, 

 which are more thoroughly 

 adapted to an arboreal life 

 than any of the rest of their 

 kindred, take their name from 

 their long slender limbs and 

 thin bodies. Among the 

 numerous species ranging over 

 the country between Uruguay 

 and southern Mexico, one of 

 the best known is the red- 

 faced spider monkey or coaita 

 (Ateles paniscus), a native 

 of Guiana and the Amazon 

 valley. The tail measures 

 about 21 feet in length or 

 about 6 inches more than the 

 head and body. 



Like the members of the 

 preceding group, the dourou- 

 colis have long tails, although 

 these are non-prehensile and 

 thickly haired. Among the 

 four species, all of which lead 



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WOOLLY SPIDER-MON'KBi. 



