History of the Peloponnesian War

So when the Corinthians sighted these ships before the Corcyraeans did, suspecting that they were from Athens and that there were more of them than they saw, they began to withdraw.

For the Corcyraeans, however, the Athenian ships were sailing up more out of view and could not be seen by them, and so they wondered that the Corinthians were backing water, until some of them caught sight of the ships and said, " Yonder are ships sailing up."

Then they too retreated—for it was already getting dark; whereupon the Corinthians put their ships about and broke offthe action.

Thus they separated, the sea-fight ending at nightfall. And while the Corcyraeans were encamping at Leucimne, the twenty ships from Athens, under the command of Glaucon son of Leagrus and Andocides son of Leogoras, having made their way through the corpses and the wrecks, sailed down to the camp not long after they were sighted.

And the Corcyraeans—for it was night—were afraid they were enemies; but afterwards they recognized them and the ships came to anchor.