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