Bulette!

Thankfully, my collection of miniatures is being put into good use as our GM last Saturday sent a Bulette (a.k.a. "land shark") against the party and lo and behold--we had the right miniature.

Unfortunately, the advanced Bulette did not last the round--the concept of the GM was that of a "Rogue's Guild" and he made the characters, giving everyone at least a level of Rogue. The Bulette didn't survive the onslaught of Sneak Attacks, despite its advanced nature.