Passage 3.25.4
ἀπὸ δὲ Πυρρίχου καταβάντι ἐς θάλασσαν ἔστι Τευθρώνη· τὸν δὲ οἰκιστὴν οἱ ταύτῃ Τεύθραντα Ἀθηναῖον ὄντα ἀποφαίνουσι, τιμῶσι δὲ θεῶν μάλιστα Ἰσσωρίαν Ἄρτεμιν, καὶ πηγή σφισίν ἐστι Ναΐα. Τευθρώνης δὲ ἀπέχει πεντήκοντα καὶ ἑκατὸν σταδίους ἐς θάλασσαν ἀνέχουσα ἄκρα Ταίναρον, καὶ λιμένες ὅ τε Ἀχίλλειός ἐστι καὶ Ψαμαθοῦς, ἐπὶ δὲ τῇ ἄκρᾳ ναὸς εἰκασμένος σπηλαίῳ καὶ πρὸ αὐτοῦ Ποσειδῶνος ἄγαλμα.
From Pyrrhichos descending to the sea is Teuthrone. The local inhabitants say its founder was Teuthras, who was an Athenian. Among the gods they particularly honor Issorian Artemis, and there is in their territory a spring called Naia. At a distance of one hundred and fifty stades from Teuthrone, projecting into the sea, is the promontory Taenarum. Here are harbors called Achilles’ Harbor and Psamathus, and on the headland itself there is a sanctuary resembling a cave, with a statue of Poseidon placed in front of it.