Neptune was the god of the sea. It is true that the Hellespont is not the open ocean, but it is an arm of the sea, and thus belonged properly to the dominions which the ancients assigned to the divinity of the waters. Neptune was conceived of by the ancients as a monarch dwelling on the seas or upon the coasts, and riding over the waves seated in a great shell, or sometimes in a chariot, drawn by dolphins or sea-horses. In these excursions he was attended by a train of sea-gods and nymphs, who, half floating, half swimming, followed him over the billows. Instead of a scepter Neptune carried a trident. A trident was a sort of three-pronged harpoon, such as was used in those days by the fishermen of the Mediterranean. It was from this circumstance, probably, that it was chosen as the badge of authority for the god of the sea.