page_title: USS Mapiro (SS-376)
hierarchical_section_title: USS Mapiro (SS-376)
context_page_description: Submarine Warfare insignia
  USS Mapiro (SS-376), a Balao-class submarine, was a ship of the United States Navy named for the mapiro,
  a fish of the Gobioidea suborder occurring off the West Indies and the Atlantic coasts of Central America and Mexico.
  Mapiro was laid down by Manitowoc Shipbuilding Co., Manitowoc, Wisc., 30 May 1944; launched 9 November 1944; sponsored by Mrs. Philip H. Ross; and commissioned 30 April 1945, Commander Vincent A. Sisler, Jr., in command. Lieutenant John Leo Cahill Jr from New Orleans Louisiana participated in her construction and is a "plankowner". He served as 5th Officer Navigator on her maiden voyage and war patrol. He was awarded the Submarine Warfare Insignia in Dallas, Texas many years after the end of World War 2.
  Following trials on Lake Michigan, Mapiro entered a floating drydock at Lockport, Ill.; and was towed down the Chicago and Mississippi Rivers to New Orleans, La., to be readied for duty in the South Pacific. She sailed for the Canal Zone 31 May, arriving off Balboa 5 June for training. On 28 June the submarine got underway for Hawaii in company with Cutlass, arriving Pearl Harbor 15 July.
context_section_description: Submarine Warfare insignia
  USS Mapiro (SS-376), a Balao-class submarine, was a ship of the United States Navy named for the mapiro, 
  a fish of the Gobioidea suborder occurring off the West Indies and the Atlantic coasts of Central America and Mexico.
  Mapiro was laid down by Manitowoc Shipbuilding Co., Manitowoc, Wisc., 30 May 1944; launched 9 November 1944; sponsored by Mrs. Philip H. Ross; and commissioned 30 April 1945, Commander Vincent A. Sisler, Jr., in command. Lieutenant John Leo Cahill Jr from New Orleans Louisiana participated in her construction and is a "plankowner". He served as 5th Officer Navigator on her maiden voyage and war patrol. He was awarded the Submarine Warfare Insignia (known as "dolphins" or "fish") in Dallas, Texas many years after the end of World War 2.
  Following trials on Lake Michigan, Mapiro entered a floating drydock at Lockport, Ill.; and was towed down the Chicago and Mississippi Rivers to New Orleans, La., to be readied for duty in the South Pacific. She sailed for the Canal Zone 31 May, arriving off Balboa 5 June for training. On 28 June the submarine got underway for Hawaii in company with Cutlass (SS-478), arriving Pearl Harbor 15 July.
  Mapiro sailed for the Marianas on her first war patrol 4 August, arriving off Saipan the day Japan surrendered, 15 August. She remained on observation patrol until returning to the west coast in September, arriving at San Francisco for deactivation by 25 August.
  On 16 March 1946 Mapiro decommissioned to enter the Pacific Reserve Fleet at Mare Island, Calif., 1 January 1947.
caption: TCG Piri Reis (S 343)
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