The Collaborative International Dictionary of English v.0.48:

Cuon \Cuon\ prop. n.
   a genus of canids including the Asiatic wild dog.

   Syn: Cyon, genus Cuon, genus Cyon.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Cuon
    n 1: Asiatic wild dog [syn: Cuon, Cyon, genus Cuon, genus
         Cyon]