Sarda's species were a humanoid species from the Alpha or Beta Quadrant with cranial ridges.
Humans had encountered this species by 2152, and a member of this species could be seen on Risa in that year. (ENT: "Two Days and Two Nights") The Bajorans and Ferengi had encountered this species by 2369. A member of this species, Sarda, was employed as a dabo girl at Quark's. (DS9: "Captive Pursuit")