So, these are Vios, also known as Void Cats.

Their limbs and ears are detached. They have 2 tounges, which can extend up to 5 feet long. The reason they only have one eye is because their other eye is esentually outside their body, and looks like a marble. This eye can be used as a camera. Their second eye is their entire being, meaning, if you destroy the eye, you destroy them. The end of their tail is a kinda of fire, it doesn't burn, but it does give off light. If it were to come into contact with purified water, it would go out and the Vios would get sick. Their coloring is widely varied, but is based off their marble eye. They commonly have darkly colored pelts with swirled patterns.