Morassia is a Class M planet, the fourth of six in the Euterpe sector. 64% of surface is covered by water.

Noted for its unusually diverse ecologies, it is ruled by three dominant sentient species, the Uk'les, Mnoi and Gumduemhai which shared a millennium of peaceful cooperation with main achievements in natural sciences. All three have a matriarchal system of tribal rule. Representatives comprise the Morassian Constabulary Government.

By 2365 the planet petitioned for Federation membership.

The Morassians constructed the Preserve encompassing three biotopes and a diverse array of species of the galaxy.