The Collaborative International Dictionary of English v.0.48:

bassarisk \bassarisk\ n.
   A raccoonlike omnivorous mammal (Bassariscus astutus) of
   Mexico and southwestern U. S. having a long bushy tail with
   black and white rings.

   Syn: cacomistle, cacomixle, coon cat, raccoon fox, ringtail,
        ring-tailed cat, civet cat, miner's cat.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Bassariscus astutus
    n 1: raccoon-like omnivorous mammal of Mexico and the
         southwestern United States having a long bushy tail with
         black and white rings [syn: bassarisk, cacomistle,
         cacomixle, coon cat, raccoon fox, ringtail, ring-
         tailed cat, civet cat, miner's cat, Bassariscus
         astutus]