The Collaborative International Dictionary of English v.0.48:

Mouflon \Mouf"lon\, n. [F. mouflon.] (Zool.)
   A wild sheep (Ovis musimon), inhabiting the mountains of
   Sardinia, Corsica, etc. Its horns are very large, with a
   triangular base and rounded angles. It is supposed by some to
   be the original of the domestic sheep. Called also musimon
   or musmon. [Written also moufflon.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

mouflon
    n 1: wild mountain sheep of Corsica and Sardinia [syn:
         mouflon, moufflon, Ovis musimon]