flying lemur

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

• noun Any of various mammals of the order Dermoptera of Southeast Asia that are sustained in gliding leaps by a wide, fur-covered membrane extending from each side of the body. They are not closely related to true lemurs.

from The Century Dictionary.

• noun A mammal of the order Insectivora and family Galeopithecidæ, provided with an extension of the skin like a parachute, by means of which it makes flying leaps from tree to tree.

from the GNU version of the Collaborative International Dictionary of English.

• (Zoöl.) either of two nocturnal lemurlike mammals inhabiting the East Indies (Cynocephalus variegatus) or the Phillipines (Cynocephalus volans) having broad folds of skin between the fore and hind limbs on both sides of the body allowing them to make long gliding leaps; they have been classed in the separate order Dermoptera. They are arboreal and have become rare.

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

• noun the colugo

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

• noun arboreal nocturnal mammal of southeast Asia and the Philippines resembling a lemur and having a fold of skin on each side from neck to tail that is used for long gliding leaps