Unidentified aquatic predator

A finned, hundreds-of-meters–long creature lived in the ocean of the aquatic moon of Delriss in the Expansion Region. A powerful predator with several spikes on its head, at some point by the time of the Galactic Civil War it attacked an undersea sanctuary of the Jedi Order, severely damaging the facility. Later, during that conflict, the predator sensed the arrival of a group of off-world Force-sensitives aboard the sanctuary and again attacked it, ultimately sending the facility sinking to the bottom of the ocean and chasing the group's starship out of the water.

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