Note 24 — Chapter VII · Triumphs of the Water-world

It is in this sort of a notion of a water-horse one is probably to look for the key to the riddle of such conceptions as that of March ab Meirchion, the king with horse’s ears, and the corresponding Irish figure of Labraid Lorc24. In both of these the brute peculiarities are reduced almost to a minimum: both are human in form save their ears alone. The name Labraid Lorc is distinct enough from the Welsh March, but under this latter name one detects traces of him with the horse’s ears in Wales, Cornwall, and Brittany25. We have also probably the same name in the Morc of Irish legend: at any rate Morc, Marc, or Margg, seems to be the same name as the Welsh March, which is no other word than march, ‘a steed or charger.’ Now the Irish Morc is not stated to have had horse’s ears, but he and another called Conaing are represented in the legendary history of early Erin as the naval leaders of the Fomori, a sort of position which would seem to fit the Brythonic March also were he to be treated in earnest as an historical character. But short of that another treatment may be suspected of having been actually dealt out to him, namely, that of resolving the water-horse into a horse and his master. Of this we seem to have two instances in the course of the story of the formation of Lough Neagh in the Book of the Dun Cow, fo. 39–41:—