Unthan

Unthans are a sapient aquatic species from the planet Untha.

As their sun expanded and the oceans started to evaporate, the Unthans directed all their resources to the construction of a fleet of ships to transport part of their population to a new planet.

Biology
Unthans are an ichthyoid species. They are dioecious, omnivorous, and have sharp teeth. Their lifespans are considerably shorter than a Human's.

Appearances

 * The Watch Below, by James White (1966)