I would guess that the size encompasses the entire tail. The largest Moor I have ever seen in my life had a body the size of a large breadplate and a tail that flowed about 8 1/2 inches off that. I have never seen a larger fancy in either books or in real life, but that's just me.
I had to laugh at the post where someone suggested that fancy's bodies get to be 12-13" without the tail. Even in a pond, that would have to be a pretty rare fancy-- as in the Fancy that Ate New York.
I had to laugh at the post where someone suggested that fancy's bodies get to be 12-13" without the tail. Even in a pond, that would have to be a pretty rare fancy-- as in the Fancy that Ate New York.