USS Cod (SS/AGSS/IXSS-224) is a Gato-class submarine , the only vessel of the United States Navy to be named for the cod , the well-known food fish of the North Atlantic and North Pacific. Her keel was laid down by the Electric Boat Company of Groton, Connecticut on 21 July 1942. She was launched on 21 March 1943 (sponsored by Mrs. G.M. Mahoney), and commissioned on 21 June 1943 with Lieutenant Commander James C. Dempsey ( Class of 1931) in command. World War II First and second patrols Cod arrived in Brisbane , Australia , on 2 October 1943 to prepare for her first war patrol . She sailed from there 20 days later. Penetrating the South China Sea , she contacted few targets, and launched an attack only once, on 29 November, with unobserved results. Returning to Fremantle , Western Australia , to refit from 16 December 1943 to 11 January 1944, Cod put to sea for her second war patrol in the South China Sea, off Java , and off Halmahera . On 16 February, she surfaced ...