Rokkna

Rokkna were a species of sea creatures native to Castilon. One place in the planet's ocean they could be found was the Karavian Trench. Rokkna had four eyes, many tentacles, and skin coloured in a green-blue pattern. Their eyes had hourglass-shaped pupils. Adults were much larger than juveniles: juvenile rokkna such as Bibo could easily be carried in the arms of a humanoid, while Bibo's mother was large enough to conceivably destroy the entire Colossus platform.