The Metamorphoses of Ovid, Books I-VII

Bochart tells us that the story of the fountain Arethusa and the river Alpheus, her lover, who traversed so many countries in pursuit of her, has no other foundation than an equivocal expression in the language of the first inhabitants of Sicily. The Phœnicians, who went to settle in V. 642-651 that island, finding the fountain surrounded with willows, gave it the name of ‘Alphaga,’ or ‘the fountain of the willows.’ Others, again, gave it the name of ‘Arith,’ signifying ‘a stream.’ The Greeks, arriving there in after ages, not understanding the signification of these words, and remembering their own river Alpheus, in Elis, imagined that since the river and the fountain had nearly the same name, Alpheus had crossed the sea, to arrive in Sicily.

This notion appearing, probably, to the poets not devoid of ingenuity, they accordingly founded on it the romantic story of the passion of the river God Alpheus for the Nymph Arethusa. Some of the ancient historians appear, however, in their credulity, really to have believed, at least, a part of the story, as they seriously tell us, that the river Alpheus passes under the bed of the sea, and rises again in Sicily, near the fountain of Arethusa. Even among the more learned, this fable gained credit; for we find the oracle of Delphi ordering Archias to conduct a colony of Corinthians to Syracuse, and the priestess giving the following directions:—‘Go into that island where the river Alpheus mixes his waters with the fair Arethusa.’

Pausanias avows, that he regards the story of Alpheus and Arethusa as a mere fable; but, not daring to dispute a fact established by the response of an oracle, he does not contradict the fact of the river running through the sea, though he is at a loss to understand how it can happen.