Stephanos of Byzantium - Ethnika
Dioskourias: one of the White Islands in Libya. The islander is called Dioskouritēs. There is also another near the Pontus, which is called Sebastopolis and was formerly also called Aia, as Nikanor says. The citizen is Dioskourieus. There is also in the Erythraean Sea an island called Dioskouridou.
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.