The Ellora were one of two primitive races, including the Tarlac, that were conquered by the Son'a in 2325. The Ellorans' heads were surrounded by a patterned bone plate. The female and male Ellora share the exact same look.
According to the Star Trek: Star Charts, on page 55, the Ellora were from the Ellora star system. Later, on page 60, Ellora was located in the Beta Quadrant. The system was a binary star system, with the primary as a small A-type main-sequence star and the secondary as an orange dwarf.