ruffed lemur

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

• noun Either of two large, chiefly nocturnal lemurs of Madagascar having long dense fur and a ruff around the face, Varecia variegata or V. rubra, the former having a black-and-white coat and the latter having a black-and-red coat.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun any of several nocturnal lemurs of the Vareica, from Madagascar; with white ruffs around the face.