dwelt damsels who fed the wayfarer with meat and bread, until grievous wrong was done them, when they disappeared and the land became waste.562 Occasionally, however, they have a more malevolent character.563
The spirit of the waters was often embodied in an animal, usually a fish. Even now in Brittany the fairy dweller in a spring has the form of an eel, while in the seventeenth century Highland wells contained fish so sacred that no one dared to catch them.564 In Wales S. Cybi's well contained a huge eel in whose virtues the villagers believed, and terror prevailed when any one dared to take it from the water. Two sacred fish still exist in a holy well at Nant Peris, and are replaced by others when they die, the dead fish being buried.565 This latter act, solemnly performed, is a true sign of the divine or sacred character of the animal. Many wells with sacred fish exist in Ireland, and the fish have usually some supernatural quality—they never alter in size, they become invisible, or they take the form of beautiful women.566 Any one destroying such fish was regarded as a sacrilegious person, and sometimes a hostile tribe killed and ate the sacred fish of a district invaded by them, just as Egyptians of one nome insulted those of another by killing their sacred animals.567 In old Irish beliefs the salmon was the fish of knowledge. Thus whoever ate the salmon of Connla's well was dowered with the wisdom which had come to them through eating nuts from the hazels of knowledge around the well. In this case the sacred fish was eaten, but probably by certain persons only—those who had the right to do so. Sinend, who went to seek inspiration from the well, probably by eating one of its salmon, was overwhelmed by its waters. The legend of the salmon is perhaps based on old ritual practices of the occasional eating of a divine animal. In other cases, legends of a miraculous supply of fish from sacred wells are perhaps later Christian traditions of former pagan beliefs or customs concerning magical methods of increasing a sacred or totem animal species, like those used in Central Australia and New Guinea.568 The frog is sometimes the sacred animal, and this recalls the Märchen of the Frog Bridegroom living in a well, who insisted on marrying the girl who drew its waters. Though this tale is not peculiar to the Celts, it is not improbable that the divine animal guardian of a well may have become the hero of a folk-tale, especially as such wells were sometimes tabu to women.569 A fly was the guardian spirit of S. Michael's well in Banffshire. Auguries regarding health were drawn from its movements, and it was believed that the fly, when it grew old, transmigrated into another.570
Such beliefs were not peculiarly Celtic. They are found in all European folk-lore, and they are still alive among savages—the animal being itself divine or the personification of a divinity. A huge sacred eel was worshipped by the Fijians; in North America and elsewhere there were serpent guardians of the waters; and the Semites worshipped the fish of sacred wells as incarnations or symbols of a god.
Later Celtic folk-belief associated monstrous and malevolent beings with rivers and lakes. These may be the older divinities to whom a demoniac form has been given, but even in pagan times such monstrous beings may have been believed in, or they may be survivals of the more primitive monstrous guardians of the waters. The last were dragons or serpents, conventional forms of the reptiles which once dwelt in watery places, attacking all who came near. This old idea certainly survived in Irish and Highland belief, for the Fians conquered huge dragons or serpents in lochs, or saints chained them to the bottom of the waters. Hence the common place-name of Loch na piast, "Loch of the Monster." In other tales they emerge and devour the impious or feast on the dead.571 The Dracs of French superstition—river monsters who assume human form and drag down victims to the depths, where they devour them—resemble these.
The Each Uisge, or "Water-horse," a horse with staring eyes, webbed feet, and a slimy coat, is still dreaded. He assumes different forms and lures the unwary to destruction, or he makes love in human shape to women, some of whom discover his true nature by seeing a piece of water-weed in his hair, and only escape with difficulty. Such a water-horse was forced to drag the chariot of S. Fechin of Fore, and under his influence became "gentler than any other horse."572 Many Highland lochs are still haunted by this dreaded being, and he is also known in Ireland and France, where, however, he has more of a tricky and less of a demoniac nature.573 His horse form is perhaps connected with the similar form ascribed to Celtic water-divinities. Manannan's horses were the waves, and he was invariably associated with a horse. Epona, the horse-goddess, was perhaps originally goddess of a spring, and, like the Matres, she is sometimes connected with the waters.574 Horses were also sacrificed to river-divinities.575 But the beneficent water-divinities in their horse form have undergone a curious distortion, perhaps as the result of later Christian influences. The name of one branch of the Fomorians, the Goborchinn, means the "Horse-headed," and one of their kings was Eochaid Echchenn, or "Horse-head."576 Whether these have any connection with the water-horse is uncertain.
The foaming waters may have suggested another animal personification, since the name of the Boyne in Ptolemy, (bououinda), is derived from a primitive bóu-s, "ox," and vindo-s, "white," in Irish bó find, "white cow."577 But it is not certain that this or the Celtic cult of the bull was connected with the belief in the Tarbh Uisge, or "Water-bull," which had no ears and could assume other shapes. It dwells in lochs and is generally friendly to man, occasionally emerging to mate with ordinary cows. In the Isle of Man the Tarroo Ushtey, however, begets monsters.578 These Celtic water-monsters have a curious resemblance to the Australian Bunyip.
The Uruisg, often confused with the brownie, haunts lonely places and waterfalls, and, according to his mood, helps or harms the wayfarer. His appearance is that of a man with shaggy hair and beard.579 In Wales the afanc is a water-monster, though the word first meant "dwarf," then "water-dwarf," of whom many kinds existed. They correspond to the Irish water-dwarfs, the Luchorpáin, descended with the Fomorians and Goborchinn from Ham.580
In other cases the old water beings have a more pleasing form, like the syrens and other fairy beings who haunt French rivers, or the mermaids of Irish estuaries.581 In Celtic France and Britain lake fairies are connected with a water-world like that of Elysium tales, the region of earlier divinities.582 They unite with mortals, who, as in the Swan-maiden tales, lose their fairy brides through breaking a tabu. In many Welsh tales the bride is obtained by throwing bread and cheese on the waters, when she appears with an old man who has all the strength of youth. He presents his daughter and a number of fairy animals to the mortal. When she disappears into the waters after the breaking of the tabu, the lake is sometimes drained in order to recover her; the father then appears and threatens to submerge the whole district. Father and
