Arkenites were a humanoid species. Members of this race served in Starfleet. Arkenites were distinguished by their three cranial lobes, pointed ears, and solid green eyes that lack an iris. They had pale skin veering toward gray or very light tan.
According to that source, the Arkenites were native to the planet Arken II (β). They are an aquatic race with complex sensory organs that can detect changes in temperature, pressure and magnetic fields. Arkenites were once a subject race of the Andorian Empire.