This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Hyosube (Japanese)
Hyosube was a monkey-like creature akin to the kappa. The story goes that Hy?sube was once helped by the poet Sugawara no Michizane (later deified as Tenjin) and in return helped him by never bringing evils to his bloodline. It is a child-sized river monster from Ky?sh? that lives in underwater caves. It prefers to come out at night and loves to eat eggplants.
Hyosube were dolls that were brought to life by a magician and used to build a shrine. After the shrine was finished they were dumped in a river. They were believed to be named after Hyobu-taifu. Hyosube are small creatures with hairy bodies and bald heads, sharp teeth, and long claws. They live in rivers but like to come out at night and get into people's bathtubs. Once they are done using the bathtubs, they leave them smelly and covered in greasy hair.