swift fox

from The Collaborative International Dictionary of English v.0.48

kit \kit\, n. [See {Kitten}.]
   A kitten.
   [1913 Webster]

   {Kit fox} (Zool.), a small burrowing fox ({Vulpes velox}),
      inhabiting the region of the Rocky Mountains. It is
      brownish gray, reddish on the breast and flanks, and white
      below. Called also {swift fox}.
      [1913 Webster]