Ichthyohumanoid species which are fish-like in appearance and have purplish-silver scales.

The natives of Antede III have been seen by very few humans. Their preferred method of dealing with the trauma of space travel is a self-induced catatonic state, during which they can rest standing up. Their half-shut eyes fully open upon awakening, a process that takes several hours. They then proceed to eat large quantities of vermicula .

On stardate 42859.2, several Antedeans were revealed by Ambassador Lwaxana Troi to be conspiratory assassins bent on sabotaging their planet's Federation membership conference on Pacifica.