*Waits for some DOOM-sayer to quip about the whole "...fleeing a sinking ship." idiom.*
Seriously though, maybe Bulette, Basilisk, Gorgon (We have a Gorgon pirate ship/crew and Gorgon armor but no Gorgons (must've all been killed for the armor)), or Roper. Oh, yeah...Centaur!
-Edit- Yes I...