Hi, I got a Chihuahua for Christmas. He is adorable, however, I am sure he is not a purebred Chihuahua. It doesn't matter to me that he's not, I'm just curious as to what else he could be. He is 4 months old and already weighs 9 pounds! He is liver and white, long haired. His ears are fuzzy and not erect, or large. He has speckles on his nose and feet. My vet said possibly some sort of Spaniel? My guess is Cavalier King Charles?