USS Grayback (SS-208), a Tambor-class submarine, was the first ship of the United States Navy to be named for the lake herring, Coregonus artedi.

Her keel was laid down by the Electric Boat Company in Groton, Connecticut. She was launched on 31 January 1941 sponsored by Mrs. Wilson Brown, wife of Rear Admiral Wilson Brown, Superintendent of the United States Naval Academy, and commissioned on 30 June 1941 with Lieutenant Willard A. Saunders in command.

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“灰背”號（SS-208）是坦博級潛艇，是美國海軍第一艘以鯡魚湖命名的艦船。 她的龍骨被康涅狄格州格羅頓的電船公司放下。它於1941年1月31日服役，由美國海軍學院院長威爾遜·布朗海軍上將的妻子威爾遜·布朗夫人讚助，並於1941年6月30日由威拉德·桑德斯中尉指揮。

Graybacks tenth patrol, her most successful in terms of tonnage sunk, was also to be her last. She sailed from Pearl Harbor on 28 January 1944, for the East China Sea. On 24 February Grayback radioed that she had sunk two cargo ships 19 February and had damaged two others (Taikei Maru and Toshin Maru sunk). On 25 February she transmitted her second and final report. That morning she had sunk tanker Nanho Maru and severely damaged Asama Maru. With only two torpedoes remaining, she was ordered home from patrol. Due to reach Midway on 7 March, Grayback did not arrive. On 30 March ComSubPac listed her as missing and presumed lost with all hands.

From captured Japanese records the submarines last few days can be pieced together. Heading home through the East China Sea after attacking convoy Hi-40 on 24 February, Grayback used her last two torpedoes to sink the freighter Ceylon Maru on 27 February. That same day, a Japanese carrier-based plane spotted a submarine on the surface in the East China Sea and attacked. According to Japanese reports the submarine "exploded and sank immediately", but antisubmarine craft were called in to depth-charge the area, clearly marked by a trail of air bubbles, until at last a heavy oil slick swelled to the surface. Grayback had ended her last patrol, one which cost the enemy some 21,594 tons of shipping.

美國海軍「灰背號」潛艇（United States Ship Grayback）於1944年1月在東中國海域執行任務時被日軍擊沉。據美國海軍稱，該潛艇僅在執行最終任務時，就擊沉共21,594噸的敵艦，「灰背號」潛艇總計擊沉了14艘敵船，總重量達63,835噸。

海洋探險家蒂姆‧泰勒（Tim Taylor）創立了「失蹤52項目」（Lost 52 Project）項目，旨在尋找在第二次世界大戰中失蹤的美國潛艇。他的團隊於6月在沖繩西南海面以下約1400英尺處發現了「灰背號」潛艇。美國海軍最近證實了他們的發現。

On November 10, 2019, a private research group, Lost 52 Project, announced it had found the wreck of Grayback off the coast of Okinawa, in June 2019.^[ The submarine sits upright on the bottom in 1,400 feet (430 m) of water, with severe damage aft of the conning tower, consistent with reports of a direct bomb hit in that area.

 The Lost 52 Project is a long term exploration and underwater archeological project that is documenting and preserving the story of the Lost 52 WWII Submarines, leaving a foundation of knowledge for future generations. Building on our current discoveries, ocean exploration and underwater robotics expertise, our team is organizing, executing and managing expeditions with the goal to discover and survey as many o.

f the lost 52 US WWII submarinUSS Grayback Discovered 2019es as possible

灰背號」潛艇的發現是泰勒和其「失蹤52項目」的第五個收穫。該團隊說，潛艇沉沒時有80名美國水手在裡面。