Great Terrafin

The Great Terrafin is a colossal sea creature reported by numerous Human fisherman on the planet Cretacea - a planet almost completely covered in water. It is considered the biggest target for many fisherman, but none has been successful.

Biology
The Great Terrafin is a gigantic creature of mythological proportions. Its body resembles that of Earth rays, though it is reported to be completely white. It has many features matching the elusive Manta Ray.

Behavior
Many fisherman who had encounters with the Great Terrafin describe it as having higher intelligence than normal Terrafins, and also seemingly a very hostile behaviour, as it was responsible for numerous wrecks of many fishing vessels in its territory.