USS Amycus (ARL-2) was one of 39 Achelous-class landing craft repair ships built for the United States Navy during World War II. Named for Amycus, she was the only US Naval vessel to bear the name.
USS Amycus (ARL-2) off San Francisco, 10 August 1943. Note the 3-inch/50-caliber gun on the extreme stern with the Bofors 40 mm L/60 gun quad mount just forward of and above it.
A repair ship is a naval auxiliary ship designed to provide maintenance support to warships. Repair ships provide similar services to destroyer, submarine and seaplane tenders or depot ships, but may offer a broader range of repair capability including equipment and personnel for repair of more significant machinery failures or battle damage.
USS Medusa was the first United States Navy ship built as a repair ship.