duck-billed cat

from The Collaborative International Dictionary of English v.0.48

Paddlefish \Pad"dle*fish`\, n. (Zool)
   A large ganoid fish ({Polyodon spathula}) found in the rivers
   of the Mississippi Valley. It has a long spatula-shaped
   snout. Called also {duck-billed cat}, and {spoonbill
   sturgeon}.
   [1913 Webster]