Benzenite
Benzenites were a culture which had taken part in Starfleet and Federation politics. They have breathing tubes on their heads. 

Laporin, a starship captain, was a Benzenite. He attended Starfleet Academy with Benjamin Sisko in the early 2350s and was killed in battle with Klingons in the early 2370s when a Klingon officer ripped the breathing tubes from his head. ()

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Species