Thirdly, the colony of Cos, Nisyrus, Carpathus, and Casos also possessed leaders or heroic founders, whose expedition is reported to have taken place at a time different from that at which the colony was founded, and is placed back in a remote period, viz. Phidippus and Antiphus, sons of Thessalus the Heraclide, or of Hercules himself. Their origin is derived by the fable from the irruption of Hercules into Cos, where he made pregnant the daughter of Euryphylus; afterwards they are said to have migrated to Ephyra in Thesprotia, and their descendants to have gone from thence to Thessaly, where the Aleuadæ, the most distinguished and the wealthiest family of Larissa, claimed them as ancestors.(427) Again, I do not deny that Heraclide families in exile at Cos derived their origin from both these heroes (it was indeed by this means that the name of Thessalus found its way into the Asclepiad family of Hippocrates); but that these families were born in the island of Cos itself, is evidently a patriotic invention of the Coans. There were, as we have seen, traditions respecting Phidippus and Antiphus in Cos, and also at Ephyra in Thesprotia; which traditions the fables and poems respecting the returns of the heroes from Troy, endeavoured to reconcile, by making Antiphus reach Ephyra, after a series of wanderings, instead of going directly to Cos; a supposition which will not gain many believers. It is also plain from the epigram of Aristotle,(428) that, according to the traditions of Ephyra, that city was considered as the _native country_, and the domicile of the two heroes; and therefore was in direct opposition to the Coan tradition. Now that a Heraclide family should have gone from Cos to Ephyra in Epirus, is contrary to all other examples of the migrations of Greek races and colonies, and all that we know of the dispersion of Heraclide clans or families. On the other hand, a part of the mythology of Hercules, which appears to be of great antiquity,(429) refers to this Ephyra in Epirus; and it was then quite natural, that with the conquest of Ephyra (a fabulous exploit of Hercules) the origin of a branch of the Heraclidæ should be connected, who then came with the Dorians into Peloponnesus, and by means of the Epidaurian colony to the island of Cos.