Petrasyl

Petrasyls are green creatures that are able to levitate with ease. The live in areas settled in by the Alimbics. Their appearence is a green main body, with tentacles hanging down. They are not violent, simply moving about in simple paths. Contact will harm a creature, but not seriously.

Logbook

Logbook entry from Metroid Prime Hunters: Petrasyl

Harmless from a distance, this airborne creature secretes a corrosive toxin that can burn through all but the toughest materials on contact.