Name: Yeth hound (also called yell hound)
Type: black dog
Origin: Devon, England
Description: The yeth hound is a black headless dog, which they say is the spirit of an unbaptised child. It runs around in the woods at night crying and wailing.
Interesting Facts: The yeth hound is possibly one of the inspirations for the dog in The Hound of the Baskervilles. The headless dog is also mentioned in The Denham Tracts, which is a series of pamphlets on folklore published between 8146 and 1859.
What "Y" creatures do you know of?