History of the Peloponnesian War
Thucydides
Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.
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.