The Collaborative International Dictionary of English v.0.48:

Zoophagous \Zo*oph"a*gous\, a. [Gr. ?; zw^,on an animal + ? to
   eat.]
   Feeding on animals.
   [1913 Webster]

   Note: This is a more general term than either sarcophagous or
         carnivorous.
         [1913 Webster]

WordNet (r) 3.0 (2006):

zoophagous
    adj 1: (of animals) carnivorous [syn: flesh-eating(a), meat-
           eating(a), zoophagous]