Tidal Anglator  

There are a lot of these running around on the beach near Necht, usually disguised as a sanidon or a marine shriller. The way to tell them apart from the normal mobs is that the angolators will always run when they move, and the real mobs will walk.

The neat thing about them is that even though you don't have to fight the lure (whatever creature the angolator was disguising itself as) because they just drop dead pretty much immediately after being attacked, you get a group bonus for killing the angolator. So they make for pretty decent xp if you can find them.