Passage 2.34.8
ἀπὸ δὲ Σκυλλαίου πλέοντι ὡς ἐπὶ τὴν πόλιν ἄκρα τέ ἐστιν ἑτέρα Βουκέφαλα καὶ μετὰ τὴν ἄκραν νῆσοι, πρώτη μὲν Ἁλιοῦσσα---παρέχεται δὲ αὕτη λιμένα ἐνορμίσασθαι ναυσὶν ἐπιτήδειον---, μετὰ δὲ Πιτυοῦσσα, τρίτη δὲ ἣν Ἀριστερὰν ὀνομάζουσι. ταύτας δὲ παραπλεύσαντί ἐστιν αὖθις ἄκρα Κωλυεργία ἀνέχουσα ἐκ τῆς ἠπείρου, μετὰ δὲ αὐτὴν νῆσος Τρίκρανα καλουμένη καὶ ὄρος ἐς θάλασσαν ἀπὸ τῆς Πελοποννήσου προβεβλημένον Βούπορθμος. ἐν Βουπόρθμῳ δὲ πεποίηται μὲν ἱερὸν Δήμητρος καὶ τῆς παιδός, πεποίηται δὲ Ἀθηνᾶς·
From Scyllaeum, sailing toward the city, there is another promontory called Bucephala, and past this cape there are islands: the first is Halioussa—which provides a harbor that is suitable for ships to anchor—after this is Pityoussa, and the third island is called Aristera. Sailing past these islands there is another promontory extending from the mainland, named Colyergia, and then, after it, an island called Tricrana, and a mountain projecting into the sea from the Peloponnese, named Buporthmus. At Buporthmus, sanctuaries have been constructed for Demeter and her daughter, and also one for Athena.