Edosian

An Edosian

Edosians (or Edoans) are a tripodal species, having three arms, three legs and three fingers on each hand, hailing from the planet Edos.

An Edosian named Arex was a member of the USS Enterprise's crew in 2269-70. (Star Trek: The Animated Series)

Edosians were susceptible to the Dramia II auroral plague. (TAS: "Albatross")

The Edosians are described as a peaceful, long-lived species worshipping many gods. Though the Animated Series may suggest that the Edosians are Federation members, it is more likely that they are merely in "loose alliance."

Knowledge of the Edosian Suckerfish among Humans, as mentioned in Star Trek: Enterprise, suggests first contact with Earth, or affiliated species, at a date prior to 2161.