Strabo Geography 9.2.13

[13] After Salganeus one comes to Anthedon, a city with a harbor; and it is the last city on that part of the Boeotian seaboard which is opposite to Euboea, as the poet says, “Anthedon at the extremity.” ¹ As one proceeds a little farther, however, there are still two small towns belonging to the Boeotians: Larymna, near which the Cephissus empties, and, still farther on, Halae, which bears the same name as the Attic demes. ² Opposite this seaboard is situated, it is said, the Aegae ³ in Euboea, in which is the temple of the Aegaean Poseidon, which I have mentioned before. ⁴ The distance across the strait from Anthedon to Aegae is one hundred and twenty stadia, but from the other places it is much less. The temple is situated on a high mountain, where there was once a city. And Orobiae ⁵ also is near Aegae. In the Anthedonian territory is Mount Messapius, ⁶ named after Messapus, who, when he came into Iapygia, called the country Messapia. ⁷ Here, too, is the scene of the myth of Glaucus, the Anthedonian, who is said to have changed into a sea-monster. ⁸

[13] After Salganeus is Anthedon, a city with a harbour, the last on the Boeotian coast towards Euboea, as the poet says,

Anthedon at the extremity. ¹

Il. ii. 508. As we proceed a little farther, there are besides two small towns, belonging to the Boeotians, Larymna, near which the Cephissus discharges its waters; and farther above, Halae, of the same name as the Attic demus. Opposite to this coast is situated, it is said, Aegae ² in Euboea, where is the temple of the Aegaean Neptune, of which we have before spoken. There is a passage across from Anthedon to Aegae of 120 stadia, and from the other places much less than this. The temple is situated upon a lofty hill, where was once a city. Near Aegae was Orobiae. ³ In the Anthedonian territory is the mountain Messapius, ⁴ which has its name from Messapus, who when he came into Iapygia called it Messapia. Here is laid the scene of the fable respecting the Anthedonian Glaucus, who, it is said, was transformed into a sea-monster. ⁵