THE SPIDER-MONKEYS. 243 



Distribution. In 1860, when Mr. L. Fraser returned from 

 Ecuador, he spoke of a large Monkey he had seen, but had 

 not obtained, in the valleys of Western Ecuador. It remained 

 unknown until it was shot, and brought to England by Mr. 

 Buckley some ten years later. It was the only Monkey, 

 he says, except a Mycetes, which he saw in Trans- Andean 

 Ecuador. 



Habits. These, doubtless, do not differ from those of other 

 Spider-Monkeys. 



IX. THE HOODED SPIDER-MONKEY. ATELES CUCULLATUS. 



Ateles aicullatus, Gray, P. Z. S., 1865, p. 733; id. Cat. Mon- 

 keys Brit. Mus., p. 42 (1870); Murie, P. Z. S., 1865, 

 p. 739 ; Schl., Mus. Pays Bas, vii., p. 169 (1876). 

 Characters. Hairs of body long, but thin on the head, body, 

 limbs and tail; hair of crown very long and projecting over 

 the face and the sides of head, forming what has been 

 called a " hood." Face nude, flesh-coloured ; cheeks and 

 lower jaw nearly nude also, but the skin of a blackish hue. 

 Hair on back black, intermingled with numerous others which 

 are yellowish-grey in colour ; crown and back of head, hands, 

 and feet black the hairs black throughout. Nude part of tail 

 flesh-coloured. The hands have a rudiment of a thumb in the 

 shape of a small tubercle. Length of body, 14^ inches ; of tail, 

 27^ inches. 



Distribution. The Hooded Spider-Monkey is very rare, and 

 very different from any other member of its group in regard to 

 the hair of its head. Its native country is still a matter of uncer- 

 tainty. Dr. Sclater, however, remarks in the "Proceedings of the 

 Zoological Society" for 1881 : "I have some reason to suppose 



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