USS Scabbardfish (SS-397), a , was the only ship of the United States Navy to be named for the scabbarddfish, a long, compressed, silver-colored fish found on European coasts and around New Zealand. In 1965 she was transferred to the Hellenic Navy and renamed Triaina. Construction and commissioning Scabbardfish′s keel was laid down on 27 September 1943 by the Portsmouth Navy Yard in Kittery, Maine. She was launched on 27 January 1944, sponsored by Ensign Nancy J. Schetky, USNR, and commissioned on 29 April 1944. Service history U.S. Navy World War II After completing initial training at Portsmouth, New Hampshire, and torpedo trials at Newport, Rhode Island, Scabbardfish reported to the Commander, Submarine Force Atlantic at New London, Connecticut, for advanced training and final outfitting. Upon completion thereof, she proceeded to Key West, Florida, for anti-submarine warfare duties which began on 21 June 1944. On 1 July 1944, she departed for Panama. Four days later, she transited the Panama Canal en route to the United States West Coast and Pearl Harbor, Hawaii. Scabbardfish, as a unit of Submarine Force, Pacific Fleet, arrived at Pearl Harbor on 24 July 1944. After completing voyage repairs and final training, she departed for Midway Atoll in the Northwestern Hawaiian Islands on 17 August 1944. First war patrol After refueling at Midway, Scabbardfish departed on her first war patrol, assigned a patrol area in the vicinity of the Ryukyu Islands. On 31 August 1944, she sighted her first enemy ships, a Japanese inter-island steamer with two escorts. Scabbardfish fired two spreads of three torpedoes, but all missed. After suffering a light depth charge attack, she surfaced and continued west. On 19 September 1944, west of Okinawa, she damaged the 5,500-ton submarine tender with two torpedo hits. She also fired a spread of torpedoes "down the throat" of an approaching Chidori-class escort, but missed. As a consequence, she underwent a depth charge attack for three hours but suffered no damage. The remainder of her patrol proved fruitless, and she returned to Midway Atoll on 12 October 1944 for refitting. Second and third war patrols On 26 October 1944, Scabbardfish departed Midway Atoll for Saipan in the Mariana Islands for further orders. She departed Saipan on 12 November 1944 to patrol in the seas southeast of Honshū, Japan. She arrived in her patrol area on 16 November 1944 and sank a 2,100-gross register ton inter-island steamer that