History of the Peloponnesian War

The Athenians at first fancied that they were to be attacked by land only, and it was not without alarm that they saw the fleet suddenly approaching as well; and while some were forming upon the walls and in front of them against the advancing enemy, and some marching out in haste against the numbers of horse and darters coming from the Olympieum and from outside, others manned the ships or rushed down to the beach to oppose the enemy, and when the ships were manned put out with seventy-five sail against about eighty of the Syracusans.

After spending a great part of the day in advancing and retreating and skirmishing with each other, without either being able to gain any advantage worth speaking of, except that the Syracusans sank one or two of the Athenian vessels, they parted, the land force at the same time retiring from the lines.