What is the name of the Irish water horse that can shape-shift?

What is the name of the Irish water horse that can shape-shift? It is the each-uisge, also known in Ireland as the each-uisce or aughisky.

The each-uisge is a dangerous water spirit in Irish and Scottish folklore. Its name literally means “water horse,” and it may appear as a beautiful horse, a pony, a handsome man or, in some accounts, a huge bird such as a boobrie. Its shifting forms allow it to lure people and animals close to the water.

The creature is said to live in the sea, sea lochs and freshwater lochs. A rider who mounts its horse form may become stuck to its adhesive skin. If the creature reaches water, it carries the victim into the depths, where the folklore describes a gruesome fate.

The chief mix-up is with the kelpie. Both are supernatural water horses, but traditional accounts commonly place kelpies around streams and rivers, while each-uisges are especially associated with lochs and the sea. Selkies are different creatures: seal-people that shed their skins to take human form.