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Triexians were a race residing on the planet Triex in the Alpha Quadrant. Triexians were distinguished by their three arms, three legs, an elongated skull, and orange-to-pink skin. Triexians bore resemblances to Edosians.

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Triexians were a long-lived species, with lifespans stretching to centuries. Elder Triexians lapsed into a death-like state every twenty-five years, then molted their skins and re-emerged in what was called the Rebirth.

Although they did not used them very often the Triexians had telepathic abilities similar to those of Vulcans. (TOS - Year Four: The Enterprise Experiment comic: "The Enterprise Experiment, Part 4")

They were susceptible to the Dramia II plague. (TAS episode: "Albatross")

They were quite strong despite their relatively slender build: a single blow from an Triexian's fist was capable of breaking a desk in half. Additionally, they could emit a guttural roar when angered. (LD episode: "Much Ado About Boimler")


Many Triexians served in Starfleet over the years, including Lieutenant Arex Na Eth. (NF - Gateways novel: Cold Wars; NF - No Limits short story: "The Road to Edos")

An Edosian medical specialist commanded the Division 14 ship Osler in 2380. (LD episode: "Much Ado About Boimler")