Arkenites were a humanoid species and member of the United Federation of Planets.
Arkenites were distinguished by their three cranial lobes, pointed ears, and solid green eyes that lack an iris. They have pale skin veering toward gray or very light tan.
At least one Arkenite has served in Starfleet as a communications officer at Starfleet Headquarters on Earth during the crisis created by the alien Whale Probe. (Star Trek IV: The Voyage Home)
The species name was never mentioned on-screen. This Arkenite was played by Michael Berryman, who later went on to play Captain Rixx in Star Trek: The Next Generation.