The Collaborative International Dictionary of English v.0.48:

Colugo \Co*lu"go\, n. [Prob. an aboriginal name.] (Zool.)
   A peculiar East Indian mammal (Galleopithecus volans),
   having along the sides, connecting the fore and hind limbs, a
   parachutelike membrane, by means of which it is able to make
   long leaps, like the flying squirrel; -- called also flying
   lemur.
   [1913 Webster]

WordNet (r) 3.0 (2006):

colugo
    n 1: 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 [syn: flying lemur, flying cat, colugo]