* Her nickname, "Shion", is an alternate reading of "400". 4 = "Shi"; 00 = "On".
* Her nickname, "Shion", is an alternate reading of "400". 4 = "Shi"; 00 = "On".
* She was launched on the 18th Jannuary 1944.
* She was launched on the 18th Jannuary 1944.
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* Surrendered 27 August 1945 and sunk as target 4 June 1946
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* Surrendered 27 August 1945 and sunk as target 4 June 1946.
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* Wreck located 1 August 2013 southwest of Oahu, Hawaii in 557 meters (1,826 feet) of water. Her hull is missing fifty feet of the bow and shows signs of heavy implosion damage. The superstructure is missing, having apparently detached from the hull during her final descent to the ocean floor.
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* Her bell was recovered from a debris field near her wreck and is planned for display at the USS Bowfin Submarine Museum & Park in Pearl Harbor.