The attack on Stratus failed altogether, chiefly in consequence of the impetuosity of the rude mountaineers serving under Cnemus, who advanced unsupported against the town, and meeting with a severe repulse embarrassed the movements of their Greek allies. About the same time the Peloponnesian fleet, consisting of forty-seven ships, was sailing down the Corinthian Gulf to co-operate with Cnemus. It was known that Phormio, the Athenian admiral, was stationed at Naupactus with a squadron of twenty vessels; but the Peloponnesian captains never dreamed that he would venture to attack them with so small a force, and they pursued their voyage along the southern shore of the gulf, without making any preparations for a battle. Phormio, however, had other intentions: keeping close to the opposite shore, he followed their movements, and allowed them to pass through the narrow strait which divides the inner from the outer gulf, wishing to avoid an engagement until they reached the open water. The Peloponnesians dropped anchor for the night at Patrae in Achaia, and Phormio took up his station at Chalcis, a harbour-town of Aetolia, at the mouth of the Evenus. Being now convinced that Phormio meditated an encounter, for which they had little inclination, the Peloponnesian admirals made an attempt [Footnote: I have adopted the reading of Bloomfield, approved by Classen (4th Edition).] to steal across under cover of darkness. But this manoeuvre was detected, and they found their way barred by the Athenian squadron in the middle of the channel. Being thus driven to bay the Peloponnesians drew up their ships in a circle, with their prows turned outwards, like a flock of sheep assailed by a dog. Within the circle were placed the smaller vessels accompanying the fleet, and five of the swiftest galleys, which were intended to lend assistance against any attack of the enemy.