Strabo Geography 5.2.8

[8] Along the whole coast between Poplonium and Pisa these islands are clearly visible; they are oblong, and all three nearly parallel, ¹ running towards the south and Libya. Aethalia is by far smaller than either of the other two. The chorographer says that the shortest passage from Libya to Sardinia is 300 ² miles. After Poplonium is the city of Cossae, situated at a short distance from the sea: there is at the head of the bay a high hill upon which it is built; below it lies the port of Hercules, ³ and near to it a marsh formed by the sea. ⁴ At the summit of the cape which commands the gulf is a lookout for thunnies; for the thunny pursues his course along the coast, from the Atlantic Ocean as far as Sicily, in search not only of acorns, but also of the fish which furnishes the purple dye. As one sails along the coast from Cossae to Ostia there are the towns of Gravisci, ⁵ Pyrgi, ⁶ Alsium, ⁷ and Fregena. ⁸ [From Cossae] to Gravisci is a distance of 300 stadia, and between them is the place named Regis-Villa. This is said to have been the royal residence of Maleos the Pelasgian; they report that after he had reigned here for some time, he departed with his Pelasgians to Athens. These were of the same tribe as those who occupied Agylla. From Gravisci to Pyrgi is a little less than 180 stadia, and the sea-port town of the Caeretani is 30 stadia farther. [Pyrgi] contains a temple of Ilethyia ⁹ founded by the Pelasgi, and which was formerly rich, but it was plundered by Dionysius the tyrant of the Sicilians, at the time ¹⁰ of his voyage to Cyrnus. ¹¹ From Pyrgi to Ostia is 260 stadia; between the two are Alsium and Fregena. Such is our account of the coast of Tyrrhenia.