I've thought she's part yorkie as well. I've seen longhaired chihuahuas on TV, so don't know if Peanut were groomed and blown out (froo-froo style) whether she'd look more full bred or not? She hates to be fussed with and it's an effort to get the gunk out of the corners of her eyes LOL! Talk about battle with a four and a half lb. tiny monster! She's been with us for I think four-five years? Lost track!