Passage 8.24.3
ἔστι δὲ καὶ Ζακυνθίων τῇ ἀκροπόλει Ψωφὶς ὄνομα, ὅτι ναυσὶν ἐς τὴν νῆσον ἐπεραιώθη πρῶτος καὶ ἐγένετο οἰκιστὴς ἀνὴρ Ψωφίδιος, Ζάκυνθος τε ὁ Δαρδάνου. Σειρῶν μὲν δὴ σταδίοις ἐστὶν ἀπωτέρω τριάκοντα ἡ Ψωφίς· παρὰ δὲ αὐτὴν ὅ τε Ἀροάνιος ποταμὸς καὶ ὀλίγον ἀπωτέρω τῆς πόλεως Ἐρύμανθος ῥέουσιν.
In the citadel of the Zacynthians there is also a place named Psophis, because the first man transported by ship to the island—who became its founder—was Psophidian by origin, along with Zacynthus, son of Dardanus. Psophis itself lies thirty stades distant from Seirai. Beside it, the river Aroanius flows, while slightly further from the city, the Erymanthus also runs.