History of the Peloponnesian War

They happened, while Astyochus was still at Rhodes, to have received from Miletus, as their commander after the death of Pedaritus, a Spartan named Leon, who had come out as a passenger with Antisthenes, and twelve ships which had been on guard at Miletus, five of which were Thurian, four Syracusan, one Anaean, one Milesian, and one Leon's own ship When therefore the Chians had gone out against them in full force, and had occupied a strong position, while their ships at the same time to the number of six and thirty put out to meet the two and thirty of the Athenians, they engaged them by sea;

and an obstinate battle having been fought, the Chians and their allies, who had not the worst in the action, returned (for it was now late) into their city.

After this, immediately that Dercyllidas had proceeded thither by land from Miletus, Abydus on the Hellespont revolted to him and Pharnabazus, as also did Lampsacus two days later.