The Collaborative International Dictionary of English v.0.48:

Eumops \Eumops\ n.
   one of the genera of mastiff bats, of the family
   Molossidae.

   Syn: genus Eumops.
        [WordNet 1.5 +PJC]

WordNet (r) 3.0 (2006):

Eumops
    n 1: mastiff bats [syn: Eumops, genus Eumops]