RED-FACED SPIDER MONKEY BARRIGUDOS 39 



rarity, and has often been exhibited in our Zoological Gardens. Its 

 range extends from Northern Brazil to Eastern Peru ; but it does not 

 range to the south beyond the limits of the great Amazonian plains, 

 its place there being taken by the White-whiskered Spider Monkey above 

 mentioned. This is slightly smaller, and grey in colour below, with the 

 face mostly black, but diversified by white on the surrounding fur. 



Altogether there are about a dozen species of these typical Spider 

 Monkeys, with long straight fur and slender bodies ; they range from 

 Peru northwards to Mexico, the species found there (Ateles vellerosus) 

 being remarkable for its long coat, which is variable in colour, but 

 usually black or brown above and cream-colour below. In South 

 America these monkeys are known as Coaitas. 



In South-western Brazil is found a monkey of a peculiar type which 

 connects the Spider Monkeys with the Woolly Monkeys or Barrigudos, 

 next to be noticed. This Woolly Spider Monkey resembles the typical 

 kind in its long limbs and tail, but has a stouter and heavier body, 

 clothed with short dense woolly fur of a brown colour. There appears 

 to be but the one species (Brachyteles arachnoides), but this is so 

 variable in the development of the thumbs that two or three forms 

 have been described ; sometimes it may have a small nailed thumb on 

 both hands, sometimes only a wart, and sometimes this on one hand 

 and the little thumb on the other ; or, as is usually the case, no thumb 

 at all. This monkey is smaller than the typical Spider Monkeys, but 

 seems to resemble them in general habits ; it is, however, a rare animal, 

 and not much is known about it. 



THE BARRIGUDOS 



THE true Barrigudos or Woolly Monkeys (Lagothrix) are very peculiar- 

 looking animals. Their limbs are of moderate length, with well- 

 developed thumbs, and their tails fully prehensile ; their heads are 

 round, and their bodies heavy and bulky, showing a " corporation " 

 which fully accounts for their Portuguese nickname of " Barrigudo " 



