The Collaborative International Dictionary of English v.0.48:

Rucervine \Ru*cer"vine\, a. [NL. Rucervus, the genus, fr. NL.
   Rusa a certain genus of deer (Malay r?sa deer) + Cervus.]
   (Zool.)
   Of, like, or pertaining to, a deer of the genus Rucervus,
   which includes the swamp deer of India.
   [1913 Webster]