Another Hound of Tindalos?

Another Hound of Tindalos? What do you guys think? I already have a Hound of Tindalos, what should we make this guy? Some extraplanar or from the Underdark? It kind of reminds me of Felix the Cat. Perhaps some sort of alien feline creature? What about a Cat of Saturn? Aren't they part of the Mythos as well... hmmm...