Dolichotis patagonum

from WordNet (r) 3.0 (2006)

Dolichotis patagonum
    n 1: hare-like rodent of the pampas of Argentina [syn: {mara},
         {Dolichotis patagonum}]

from The Collaborative International Dictionary of English v.0.48

Mara \Ma"ra\, n. (Zool.)
   The Patagonian cavy, a hare-like rodent ({Dolichotis
   patagonum} or {Dolichotis Patagonicus}) of the pampas of
   Argentina.
   [1913 Webster]