Deltir

Known on Earth as Arcturus VII. The Deltiri, the natives of Deltir, are telepathic, tall, thin, and while bipedal, have a fish-like look. The most common epidermis color is blue, though there are other colors, including bright teal, purple, bluish shades of green, a purplish-red, and even bright orange, though yellow is not seen as a skin color. They are an advanced culture, highly intelligent, and long-lived.