LAMPSACUS, or LAMPSACUM, in Ancient Geography, a considerable city of Mysia; more anciently called Pityea, (Homer), because abounding in pine trees, a circumstance confirmed by Pliny; situated at the north end or entrance of the Hellespont into the Propontis, with a commodious harbour, opposite to Callipolis, in the Thracian Chersonesus. It was assigned by Artaxerxes to Themistocles, for furnishing his table with wine, in which the country abounded. It was saved from the ruin threatened by Alexander because in the interest of Persia, by the address of Anaximenes the historian, sent by his fellow-citizens to avert the king's displeasure; who hearing of it, solemnly declared he would do the very reverse of Anaximenes's request, who therefore begged the king utterly to destroy it, which he could not do because of his oath. Lampsacius the epithet, denoting lascivus, the character of the people: still called Lampsacus. E. Long. 28° N. Lat. 40. 12.