THE DOUBOTJCOTJLI. 225 



THE DOUROUCOULT. 



Aotes trivirgatus HUMBOLDT. 



PLATE XXIV. 



Le Douroucouli, Aotes trivirgatus, Humboldt and Bonpland, 

 Observations de Zoologie, i. p. 306 ; Geoffroy^ Annales du 

 Museum d'Histoire Naturelle, xix. p. 115; Desmaresd 

 Mammalogie^ p. 88. 



THIS curious animal, the only type yet discovered 

 of the above-mentioned genus, was found during 

 Humboldt and Bonpland's arduous journey upon the 

 Oronooko ; and, as their descriptions alone exist, we 

 have made use of the greater part of them in the follow- 

 ing article, and also of their beautiful plate for the 

 accompanying illustration. It may be characterised 

 by the head, large and round; muzzle short; no 

 apparent external ear ; the eyes very large ; the 

 tail long, hairy, not prehensile ; habits nocturnal. 



The Douroucouli of the Maravitain Indians is 

 covered with a soft grayish-white fur, having a line 

 of brown along the centre of the back, from the head 

 to the tail ; the breast, belly, and inner part of the legs, 



