Intelligent noncorporeal lifeforms whose minds are among the most beautiful in the,
universe. By contrast, Medusans' physical appearence is so hideous that one look at a Medusan by a human will cause total madness in the human unless the human is wearing a protective visor. While traveling on board the Enterprise, Medusan ambassador Kollos shielded himself in a protective container in order to protect the human members of the crew. Medusans' sensory systems are radically different from those of humanoid lifeforms, and their ability to orient themselves in subspace makes them well suited for navigational tasks aboard starships.
The Medusans Can Be Seen In The Episode, "Is There In Truth No Beauty?"
