Glashtyn

Glashtyn (Manx English: glashtin, glashtan [ˈɡlaʃθən] or glashan; Manx: glashtin or glashtyn [ˈɡlaʃtʲənʲ]) is a legendary creature from Manx folklore.

The glashtin is said to be a goblin that appears out of its aquatic habitat, to come in contact with the island folk; others claim it takes the shape of a colt, or equate it to the water horse known locally as cabbyl-ushtey. Yet another source claims the glashtin was a water-bull (tarroo-ushtey in Manx), half-bovine and half-equine.

Some tales or lore recount that it has pursued after women, ending in the stock motif of escape by cutting loose the skirt-hem, although in one modern version her escape is achieved by a rooster's crowing; in that tale the glashtin pretends to be a handsome man but is betrayed by his horse-ears.