woolly monkey

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Any of several medium-sized arboreal monkeys of the genus Lagothrix of South America that have a thick fleecy coat and a long prehensile tail and that eat primarily fruit and leaves.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun large monkeys with dark skin and woolly fur of the Amazon and Orinoco basins