A light pleasure-barge universally used on the canals of Venice, generally propelled by one man standing on the stern with one powerful oar, though the larger kinds have more rowers. The middle-sized gondolas are upwards of 30 feet long and 4 broad, with a well furnished cabin amidships, though exclusively black as restricted by law. They always rise at each end to a very sharp point of about the height of a man's breast. The stem is always surmounted by the ferro, a bright iron beak or cleaver of one uniform shape, seemingly derived from the ancient Romans, being the "rostrisque tridentibus" of Virgil, as may be seen in many of Hadrian's large brass medals. The form of the gondola in the water is traced back till its origin is lost in antiquity, yet (like that of the Turkish caïques) embodies the principles of the wave-line theory, the latest effort of modern ship-building science. Also, a passage-boat of six or eight oars, used on other parts of the coast of Italy.