The Daliwakans were a humanoid species native to the Alpha or Beta Quadrant.
The Daliwakans were mainly Human in appearance except for a row of ridges down the center of their forehead, and pronounced skin above the eyebrows. Daliwakans could reproduce with Humans.
Presumably, "The Gigolo's" features are a combination of Human and Daliwakan facial features, so Daliwakan appearance would probably be more pronounced than his.
There was a hologram (presumably based upon a real person) who was half Daliwakan on his mother's side, while his father was a Human of French descent. He was included in Tom Paris' holodeck program depicting Chez Sandríne, his flirtatious and overtly forward behaviour was remarked to be indicative of both his Daliwakan and French heritage.(VOY: "The Cloud", "Lifesigns")