The Eseriat were a hominid civilization native to somewhere in the galaxy's Alpha or beta Quadrant.
History and specifics
The Eseriat had craggy-features with gray skin, gray hair, and gray eyes (even the "whites"). They also had a mellow drawl to their voice. A male Eseriat named Mahásë served in Starfleet, on board the Federation starship USS Enterprise, as a communications officer. (TOS novel: The Wounded Sky)