USS Agamenticus was one of four Miantonomoh-class monitors built for the United States Navy during the American Civil War. Commissioned as the war was ending in May 1865, the ironclad saw no combat and was decommissioned in September and placed in reserve. The ship was reactivated in 1870, having been renamed Terror the previous year, and was assigned to the North Atlantic Fleet where she served in the Caribbean Sea. The monitor was decommissioned again in 1872 and was sold for scrap two years later. The Navy Department evaded the Congressional refusal to order new ships by claiming that the Civil War-era ship was being repaired while building a new monitor of the same name.
Agamenticus shortly after her completion in 1865
A bow view of the monitor circa 1872–1874 while laid up, showing the elevated pilot house and breakwater
Miantonomoh-class monitor
The Miantonomoh class consisted of four monitors built for the Union Navy during the U.S. Civil War, but only one ship was completed early enough to participate in the war. They were broken up in 1874–1875.
USS Miantonomoh in Washington Navy Yard, 1865
USS Miantonomoh under full sail
USS Napa and Monadnock
USS Chimo and Tonawanda photographed of the stern of USS Minatanomoh.