USS Barb (SS-220), a Gato-class submarine, was the first ship of the United States Navy to be named for the Barbus, a genus of ray-finned fish. She compiled one of the most outstanding records of any U.S. submarine in World War II. During her seven war patrols, Barb is officially credited with sinking 17 enemy vessels totaling 96,628 tons, including the Japanese aircraft carrier Un'yō. In recognition of one outstanding patrol, Barb received the Presidential Unit Citation. On her twelfth and final patrol of the war, she landed a party of carefully selected crew members who blew up a train, the only ground combat operation in the Japanese home islands.