Moboulla is a creature of the "Flying Wyvern" class that is heavily reminiscent to a leech. It is a heavily derived wyvern, largely losing its bulk and flight. It is specialized towards dark and damp environments (likely caves). It is quite agile, being capable of climbing, and shoots a narcotic poison from its mouth. It is also blind, instead sensing heat of living things nearby. It feeds on the blood of other creatures through it's lamprey-like mouth. It's name is a reference to the genus 'Mobulla" or the Mobulla rays.
Moboulla at the moment is purely in the concept phase, with the concept art being all progress that currently exists for it in Additional Creatures.