 Train's "History" of the island represents one of the early commentary on the glashtin.In one passage, he claims that the glashtin was a water-horse, and this sea-glashtin would emerge from his marine habitat, mingle with the local land-roving ponies and cross breed to produce foal.An earlier historian George Waldron records such behaviour for the water-bull (see #taroo ushtey below), but makes no endorsement for any water-horses doing the same.