The Ecanuj are a non-humanoid species from Ecan, a planet with raging seas.
The ecanuj appear to many humanoids as "floating brains." Very intelligent, they had a natural form of telekinesis that functioned like a repulsorlift. They breathed cyanogen, a gas poisonous to Humans. Conversely, oxygen was lethal to them, necessitating atmospheric transport chambers offworld.
The ecanuj are greatly known for their massive intellect and wisdom. Their race evolved from ocean-dwelling invertebrates to the ancestors that eventually lived on land in Ecan. To move their jellyfish-like bodies, the ecanuj create a form of locomotion similar to a repulsorlift generator. Their soft fleshy bodies, great tentacles, and dependence upon life-support chambers made the ecanuj look as though they were always swimming or floating. Ecanuj communicated using a form of telepathy, and had no written or spoken language.