History of the Peloponnesian War
Thucydides
Thucydides. The history of the Peloponnesian War, Volume 1-2. Dale, Henry, translator. London: Heinemann and Henry G. Bohn, 1851-1852.
For so they thought that both the island would be unfavourable to the Athenians, and the mainland also, as it did not afford any landing-place; for the shores of Pylus itself outside the inlet, looking towards the open sea, would present no ground from which they might proceed to the aid of their countrymen; and so they should storm the place, in all probability, without the risk of a sea-fight, as there were no provisions in it, and it had been occupied after short preparation.
Having adopted these resolutions, accordingly they conveyed over the heavy-armed into the island, drafting them by lot from all the [*]( On these divisions of the Lacedaemonian army see Arnold's note, V. 68. 3.) lochi There had also been some others sent over before in turns; but these last who went, and who were left there, were four hundred and twenty in number, with their attendant Helots; their commander being Epitadas son of Molobrus.
Demosthenes, seeing the Lacedaemonians about to attack him both by sea and land at once, made his own preparations also; and having drawn up under the fortifications the triremes he had remaining from those that had been left him, he enclosed them in a stockade, and armed the crews taken out of them with shields of an inferior kind, and in most cases made of osiers. For it was not possible in so lonely a place to provide themselves with arms; but even these they had got from a thirty-oared privateer and skiff belonging to some Messenians, who happened to have come to them. Of these Messenians there were also about forty heavy-armed, whose services he used with the rest.