After refitting, she sailed from Fremantle on 5 January 1945 bound for the South China Sea on her fourth war patrol. Late in January, she received orders to join Perch (SS 313) and Gabilan (SS 252) for a patrol in the western approaches to Balabac Strait and the southern entrance to Palawan Passage. On 3 February, Barbel radioed that she had been attacked by enemy aircraft dropping depth charges. No further word was received from Barbel after then. Japanese records captured after the war contained a report of an air attack on 4 February on an American submarine. It stated that the Japanese plane had scored one hit near it’s target's bridge. This submarine was probably Barbel. She was officially reported lost on 16 February 1945. | After refitting, she sailed from Fremantle on 5 January 1945 bound for the South China Sea on her fourth war patrol. Late in January, she received orders to join Perch (SS 313) and Gabilan (SS 252) for a patrol in the western approaches to Balabac Strait and the southern entrance to Palawan Passage. On 3 February, Barbel radioed that she had been attacked by enemy aircraft dropping depth charges. No further word was received from Barbel after then. Japanese records captured after the war contained a report of an air attack on 4 February on an American submarine. It stated that the Japanese plane had scored one hit near it’s target's bridge. This submarine was probably Barbel. She was officially reported lost on 16 February 1945. |