A small town at the foot of Mycale promontory, opposite the island Samos. The strait between is scarcely one mile across, and the current is rapid. Paul stayed a night here, probably in the ship, at the close of his third missionary journey on his way to Jerusalem. From Trogyllium he sailed to Miletus. Close by is a roadstead still called Paul's port. The darkness, owing to its being the time of dark moon, was the occasion of the ship's stay in this sheltered spot (Acts 20:6; Acts 20:15).