there is a picture of one on wikipedia
here: http://en.wikipedia.org/wiki/Wampus_cat
as well as this description:
The Wampus cat is a legendary creature. This is a monster of the Fearsome Critters variety, coined by the lumberjack community of the United States. According to the tale, a Native American woman disguised herself in the skin of a mountain lion to spy on the men of the tribe as they sat around the campfire and told sacred stories on a hunting trip. When the woman was discovered, the tribe's medicine man punished her by transforming her into a half-woman, half-cat, who supposedly still haunts the forests of East Tennessee.