I've done a bit of poking around as well, and can't seem to find anything.
... Well besides that one antagonist guy from early on in Naruto xD
I'll keep digging around, but I'm not even sure what I'm looking for xD
A guy with sharp teeth and a shark fin? 

Worst case scenario I guess I could settle for a written description, 
or if you're comfortable with a Level2 grade furry (see first page) I guess that could work too.
For the time being though I'll see what I can find.

Edit: I thought the image was rather nice xD
But if you feel it's too furry then I guess we keep looking~