YimMa was an individual who was a former crewmember on board the Even Odds in the Gamma Quadrant in the 24th century. YimMa served as an archaeologist, and was well-liked on the ship.

In 2375, YimMa retired from working on the Even Odds, a year before Jake Sisko was rescued, and was replaced by Coamis five or six months earlier from Jake's arrival. (DS9 novel: Rising Son)

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