Megarite

Megarites are a sapient, spacefaring humanoid species from the planet Megara.

Biology
Megarites are aquatic humanoids with four-lipped mouths that are specialized for filtering plankton, similar to a baleen whale. Their hides are tough like a rhino's.

Culture and society
Megarites have been described as a "poetic people" and communicate with a musical language. Their houses and artifacts are mostly constructed from jade; which exists in great abundance in their homeworld; and their clothing comes from sea animals.

Appearances

 * Star Trek: The Motion Picture (1979)