USS Amphitrite, a 3990-ton double-turret monitor, was constructed over two decades, from 1874 to 1895. Prior to the Spanish-American War, she was employed along the U.S. east coast, and served in the Caribbean during that conflict. After 1898, Amphitrite remained active as a training and station ship and guarded the approaches to New York Harbor during the First World War.

The monitor was decommissioned in 1919 and sold the following year. Her new civilian owners converted her into a floating hotel, and she was not scrapped until 1952.