A Federation species with heavy grey hide and fleshy lip folds, seen briefly in Star Trek: The Motion Picture and said in production notes to come from an ocean world.
The Megarites are bulky humanoids with thick, rough grey skin often compared to that of a rhinoceros, deep-set eyes and several rows of fleshy flaps around the mouth. Those seen on screen wear long dark robes rather than Starfleet uniform.
They appear in Star Trek: The Motion Picture, among the crowd at the San Francisco air tram station and in the mass briefing on the Enterprise recreation deck before the ship meets V'Ger. They have no dialogue.
As with the other background races created for the film, the name is taken from costume designer Robert Fletcher's notes and is never used in dialogue. The notes give their home as an oceanic planet, describe their speech as musical, and say that their culture is devoted to poetry.