History of the Peloponnesian War

Such was the exhortation that Phormio, on his side, addressed to his men. Now when the Athenians did not sail into the narrow part of the gulf to meet them, the Peloponnesians, wishing to lead them on even against their will, weighed in the morning, and having formed their ships in a column four abreast, sailed to their own land towards the inner part of the gulf, with the right wing taking the lead, in which position also they lay at anchor.

In this wing they had placed their twenty best sailers; that if Phormio, supposing them to be sailing against Naupactus, should himself also coast along in that direction to relieve the place, the Athenians might not, by getting outside their wing, escape their advance against them, but that these ships might shut them in.

As they expected, he was alarmed for the place in its unprotected state; and when he saw them under weigh, against his will, and in great haste too, he embarked his crews and sailed along shore;

while the land-forces of the Messenians at the same time came to support him. When the Peloponnesians saw them coasting along in a single file, and already within the gulf and near the shore, (which was just what they wished,) at one signal they suddenly brought their ships round and sailed in a line, as fast as each could, against the Athenians, hoping to cut off all their ships.