History of the Peloponnesian War

The next summer, in the beginning of the spring, Dercylidas, a Spartan, was sent by land into Hellespont with a small army to work the revolt of Abydos, a colony of the Milesians. And the Chians at the same time, whilst Astyochus was at a stand how to help them, were compelled by the pressure of the siege to hazard a battle by sea.

Now whilst Astyochus lay at Rhodes, they had received into the city of Chios, after the death of Pedaritus, one Leon, a Spartan, that came along with Antisthenes as a private soldier, and with him twelve galleys that lay at the guard of Miletus, whereof five were Thurians, four Syracusians, one of Anaea, one of Miletus, and one of Leon's own.

Whereupon the Chians, issuing forth with the whole force of the city, seized a certain place of strength and put forth thirty-six galleys against thirty-two of the Athenians and fought. After a sharp fight, wherein the Chians and their associates had not the worst, and when it began to be dark, they retired again into the city.