[ShadowHeart]

I have the European version of FFX, and I can see why kizaragi is confused. On the back of the European game cover, there's a screenshot from a battle where they're going through the list of aeons to summon, and you can see the names Valefor, Ifrit and Kit Fox there.

kizaragi, I would have to say that some game tester at Square Enix or something simply renamed one of the aeons to Kit Fox.. for whatever reason. I seriously doubt that there's such an aeon, as not only is the name retarded, but if there really was one there'd be information about it somewhere on the net on how to get it, something I've never seen.