Strabo, Geography

The poet next mentions both Titaresius and the Perrhaebians, when he says, “"And Guneus led from Cyphus twenty-two ships. And there followed him the Enienians,¹ and the Perrhaebians steadfast in war, who had established their homes round wintry Dodona,² and dwelt in the fields about lovely Titaresius."
”³Now he speaks of these places as belonging to the Perrhaebians, places which fell into their possession as a part of Hestiaeotis.⁴ And also the cities subject to Polypoetes were in part Perrhaebian. However, he assigned them to the Lapiths because the two peoples lived intermingled with one another,⁵ and also because, although the Lapiths held possession of the plains and the Perrhaebian element there were for the most part subject to the Lapiths, the Perrhaebians held possession of the more mountainous parts near Olympus and Tempe, as, for example, Cyphus, and Dodona, and the region about the Titaresius; this river rises in the Titarius Mountain, which connects with Olympus, and flows into the territory of Perrhaebia which is near Tempe, and somewhere in that neighborhood unites with the Peneius. Now the water of the Peneius is pure, but that of the Titaresius is oily, because of some substance or other, so that it does not mingle with that of the Peneius, “"but runs over it on the top like oil."
”⁶Because of the fact that the two peoples lived intermingled, Simonides uses the terms Perrhaebians and Lapiths of all the Pelasgiotes who occupy the region about Gyrton and the outlets of the Peneius and Mount Ossa and Mount Pelion, and the region about Demetrias, and the region in the plain, I mean Larisa, Crannon, Scotussa, Mopsium, Atrax, and the region about Lake Nessonis and Lake Boebeïs. Of these places the poet mentions only a few, because the rest of them had not yet been settled, or else were only wretched settlements, on account of the inundations which took place at various times. Indeed, he does not mention Lake Nessonis either, but Lake Boebeïs only (though it is much smaller), because the latter alone persisted, whereas the former, in all probability, was at times filled at irregular intervals and at times gave out altogether. Scotussa I have already mentioned in my account of Dodona and of the oracle in Thessaly, saying that originally it was near this place.⁷ In the territory of Scotussa there is a place called Cynoscephalae,⁸ near which Titus Quintius⁹ and the Romans, along with the Aetolians, in a great battle¹⁰ conquered Philip the son of Demetrius, king of the Macedonians.