This appendix, prepared from the foregoing report, contains a listing of Japanese naval and merchant vessels sunk by individual United States submarines during World War II. The United States submarines are arranged in alphabetical sequence. Appendix
These assessments indicate that United States submarines sank 540,192 tons of Japanese naval vessels, and 4,779,902 tons of merchant shipping during the course of the war, the total accounting for 54.6% of all Japanese vessel losses.
Japanese Naval and Merchant Vessels Sunk During World War II
by
United States Submarines
USS Albacore Date Name of Vessel Type of Vessel Tonnage Location Assessment Dec 18 1942 TENRYU Light Cruiser 3,300 5-11S, 145-57E Sunk Feb 20 1943 OSHIO Destroyer 1,850 0-50S, 146-06E Sunk Feb 20 1943 UNKNOWN Frigate 750 e 0-50S, 146-06E Sunk Sep 4 1943 HEIJO MARU Ex-Gunboat 2,627 05-32S, 156-23E Sunk Nov 25 1943 KENZAN MARU Cargo 4,705 0-51N, 145-56E Sunk Jan 12 1944 CHOKO MARU Ex-Gunboat 2,629 3-30N, 147-27E Sunk Jan 14 1944 SAZANAMI Destroyer 1,950 5-15N, 141-15E Sunk Jun 19 1944 TAIHO Aircraft Carrier 31,000 12-22N, 137-04E Sunk Sep 5 1944 SHINGETSU MARO Cargo 880 32-24N, 134-15E Sunk Sep 11 1944 SUBMARINE CHASER NO 165 Submarine Chaser 170 32-20N, 131-50E Sunk 10 Vessels 49,861 USS Amberjack Sep 19 1942 SHIROGANE MARU Pessenger-Cargo 3,130 6-33S, 156-05E Sunk Oct 7 1942 SENKAI MARU Passenger-Cargo 2,095 1-55N, 153-42E Sunk 2 Vessels 5,225 USS Angler Jan 29 1944 SHUKO MARU Ex-Net Tender 889 23-07N, 142-27E Sunk May 20 1944 OTORI MARU Cargo 2,105 5-40S, 105-27E Sunk Oct 14 1944 NANREI MARU Transport 2,407 11-53N, 121-39E Sunk 3 Vessels 5,401 USS Apogon Dec 4 1943 DAIDO MARU Ex-Gunboat 2,962 8-15N, 159-06E Sunk Sep 27 1944 HACHIROGATA MARU Cargo 1,999 46-32N, 146-48E Sunk Vessels
USS Apogon Date Name of Vessel Type of Vessel Tonnage Location Assessment Jun 18 1945 HAKUAI MARU Transport 2,614 50-30N, 155-01E Sunk 3 Vessels 7,575 USS Archerfish Jun 28 1944 COAST DEF VESSEL NO 24 Frigate 800 e 24-44N, 140-20E Sunk Nov 29 1944 SHINANO Aircraft Carrier 59,000 32-00N, 137-00E Sunk 2 Vessels 59,800 USS Aspro Feb 15 1944 I 43 Submarine 2,212 12-42N, 149-17E Sunk May 15 1944 JOKUJA MARU Cargo 6,440 10-10N, 131-25E Sunk Jul 28 1944 PEKING MARU Transport 2,288 17-33N, 120-21E Sunk Oct 2 1944 AZUCHISAN MARU Cargo 6,888 18-25N, 120-32E Sunk Oct 7 1944 MACASSAR MARU 4,026 17-54N, 119-57E Sunk 5 Vessels 21,854 USS Atule Nov 1 1944 ASAMA MARU Transport 16,975 20-09N, 117-38E Sunk Nov 20 1944 MINSWEEPER NO 38 Minesweeper 630 e 21-21N, 119-45E Sunk Nov 25 1944 PATROL BOAT NO 38 Old Destroyer 820 e 20-12N, 121-51E Sunk Nov 25 1944 SANTOS MARU Cargo 7,266 2-12N, 121-51E Sunk Jan 24 1945 TAIMAN MARU NO 1 Cargo 6,888 36-74N, 123-59E Sunk Aug 13 1945 COAST DEFENSE VESSEL NO 6 Frigate 800 e 42-11N, 142-14E Sunk 6 Vessels 33,379 USS Balao Feb 23 1944 NIKKI MARU Passenger-Cargo 5,857 7S, 135-42E Sunk Feb 28 1944 SHOHO MARU Cargo 2,723 6N, 132-53E Sunk
USS Balao Date Name of Vessel Type of Vessel Tonnage Location Assessment Feb 28 1944 AKIURA MARU Passenger-Cargo 6,803 00-06N, 132-53E Sunk Jan 8 1945 DAIGO MARU Cargo 5,244 34-28N, 122-39E Sunk Mar 19 1945 HAKOZAKI MARU Transport 10,413 33-09N, 122-08E Sunk Mar 26 1945 SHINTO MARU NO 1 Cargo 880 e 35-14N, 123-44E Sunk 6 Vessels 31,920 USS Bang Apr 29 1944 TAKEGAWA MARU Cargo 1,930 19-26N, 118-45E Sunk Apr 30 1944 NITTATSU MARU Cargo 2,859 19-11N, 119-10E Sunk May 4 1944 KINREI MARU 5,947 20-58N, 117-59E Sunk Sep 9 1944 TOKIWASAN MARU Cargo 1,804 28-53N, 137-42E Sunk Sep 9 1944 SHORYU MARU Cargo 1,916 28-53N, 137-42E Sunk Sep 19 1944 TOSEI MARU NO 2 Tanker 507 24-56N, 122-14E Sunk Nov 23 1944 SAKAE MARU Cargo 2,878 24-12N, 122-53E Sunk Nov 23 1944 AMAKUSA MARU Passenger-Cargo 2,340 24-24N, 122-45E 8 Vessels 20,181 USS Barb Mar 28 1944 FUKUSEI MARU Cargo 2,219 24-24N, 131-11E Sunk May 31 1944 KOTO MARU Cargo 1,053 47-52N, 151-02E Sunk May 31 1944 MADRAS MARU Passenger-Cargo 3,802 48-21N, 151-19E Sunk Jun 11 1944 TOTEN MARU Cargo 3,823 46-58N, 143-50E Sunk Jun 11 1944 CHIHAYA MARU Cargo 1,161 46-58N, 143-50E Sunk Jun 13 1944 TAKASHIMA MARU Passenger-Cargo 5,633 50-47N, 151-20E Sunk Aug 31 1944 OKUNI MARU Cargo 5,633 21-14N, 121-22E Sunk Sep 16 1944 AZUSA Tanker 11,177 19-18N, 116-26E Sunk Sep 16 1944 UNYO Escort Aircraft Carrier 20,000 19-18N, 116-26E Sunk Nov 10 1944 GOKOKU MARU Ex-Light Cruiser 10,438 33-23N, 129-03E Sunk Nov 12 1944 NARUO MARU Cargo 4,823 31-29N, 125-19E Sunk Jan 8 1945 SHINYO MARU Cargo 5,892 24-31N, 120-28E Sunk Jan 8 1945 ANYO MARU Passenger-Cargo 9,256 24-54N, 120-26E Sunk Jan 8 1945 SANYO MARU Tanker 2,854 24-54N, 20-26E Sunk Jan 23 1945 TAIKYO MARU Cargo 5,244 27-04N, 120-27E Sunk Jul 5 1945 SAPPORO MARU NO 11 Cargo 2,820 46-04N, 142-14E Sunk
USS Barb Date Name of Vessel Type of Vessel Tonnage Location Assessment Jul 18 1945 COAST DEF VESSEL NO 112 Frigate 800 e 46-03N, 142-16E Sunk 17 Vessels 96,628 USS Barbel Aug 5 1944 MIYAKO MARU Passenger-Cargo 970 27-36N, 128-54E Sunk Aug 9 1944 YAGI MARU Cargo 1.937 27-52N, 128-49E Sunk Aug 9 1944 BOKO MARU Cargo 2,333 27-52N, 128-49E Sunk Sep 25 1944 BUSHU MARU Cargo 1,222 29-50N, 130-06E Sunk Nov 14 1944 SUGIYAMA MARU Cargo 4,379 15-14N, 112-13E Sunk Nov 14 1944 MISAKI MARU Cargo 4,422 15-14N, 112-13E Sunk 6 Vessels 15,263 USS Barbero Nov 2 1944 KURAMASAN MARU Cargo 1,995 4-30S, 118-20E Sunk Nov 8 1944 SHIMOTSU MARU Tanker 2,854 14-01N, 117-17E Sunk Dec 25 1944 JUNPO MARU Cargo 4,277 1-10N, 108-20E Sunk 3 Vessels 9,126 USS Bashaw Jun 25 1944 YAMAMIYA MARU Cargo 6,440 3-36N, 127-14E Sunk Sep 8 1944 YANAGIGAWA MARU Cargo 2,813 8-14N, 121-47E Sunk Mar 5 1945 RYOEI MARU Tanker 10,016 16-46N, 108-41E Sunk 3 Vessels 19,269 USS Batfish Jan 20 1944 HIDAKA MARU Cargo 5,486 31-28N, 134-52E Sunk Jun 22 1944 NAGARAGAWA MARU Passenger-Cargo 990 34-35N, 137-56E Sunk Aug 23 1944 MINESWEEPER NO 22 Minesweeper 492 8-09N, 134-38E Sunk
USS Batfish Date Name of Vessel Type of Vessel Tonnage Location Assessment Feb 9 1945 I 41 Submarine 2,212 18-50N, 121-40E Sunk Feb 11 1945 RO 112 Submarine 525 18-53N, 121-50E Sunk Feb 12 1945 RO 113 Submarine 525 19-10N, 121-23E Sunk 6 Vessels 10,230 USS Baya Mar 4 1945 PALEMBANG MARU Tanker 5,236 12-52N, 109-30E Sunk Mar 21 1945 KAINAN MARU Ex-Submarine Chaser 524 11-55N, 109-18E Sunk May 13 1945 YOSEI MARU Tanker 2,500 e 6-31S, 111-19E Sunk Jul 16 1945 KARI Motor Torpedo Boat 595 5-48S, 115-53E Sunk 4 Vessels 8,855 USS Becuna Feb 22 1945 NICHIYOKU MARU Tanker 1,945 11-28N, 109-06E Sunk USS Bergall Oct 13 1944 SHINSHU MARU Cargo 4,182 11-52N, 109-20E Sunk Oct 27 1944 NIPPO MARU Tanker 10,528 7-09N, 116-40E Sunk Jan 27 1945 COASTAL MINESWEEPER NO 102 Coastal Minesweeper 174 8-37S, 115-39E Sunk Feb 7 1945 COAST DEF VESSEL NO 53 Frigate 800 12-04N, 109-22E Sunk 4 Vessels 15,684 USS Besugo Nov 22 1944 TRANSPORT NO 151 Landing Craft (LST) 1,000 e 11-22N, 119-07E Sunk Jan 6 1945 NICHIEI MARU Tanker 10,020 6-57N, 102-57E Sunk Feb 2 1945 COAST DEF VESSEL NO 144 Frigate 800 e 4-32N, 104-30E Sunk Apr 6 1945 MINESWEEPER NO 12 Minesweeper 630 8-13S, 119-14E Sunk 4 Vessels 12,450 USS Billfish May 26 1945 KOTOBUKI MARU NO 7 Cargo 991 33-18N, 129-20E Sunk Jun 4 1945 TAIU MARU Cargo 2,220 38-32N, 124-45E Sunk
USS Billfish Date Name of Vessel Type of Vessel Tonnage Location Assessment Aug 5 1945 KORI MARU Cargo 1,091 38-51N, 121-39E Sunk 3 Vessels 4,302 USS Blackfish Jan 16 1944 KAIKA MARU Cargo 2,087 4-03N, 148-41E Sunk USS Blackfin Nov 1 1944 UNKAI MARU NO 12 Cargo 2,745 12-54N, 120-10E Sunk Jan 24 1945 SHIGURE Destroyer 1,580 6-00N, 103-48E Sunk 2 Vessels 4,325 USS Blenny Dec 14 1944 COAST DEF VESSEL NO 28 Frigate 800 e 15-46N, 119-45E Sunk Dec 23 1944 KENZUI MARU Cargo 4,156 16-50N, 120-18E Sunk Feb 26 1945 AMATO MARU Tanker 10,238 11-57N, 109-18E Sunk Mar 20 1945 YAMAKUNI MARU Cargo 500 11-17N, 108-55E Sunk Mar 20 1945 NANSHIN MARU NO 21 Tanker 834 11-17N, 108-55E Sunk Mar 20 1945 HOSEN MARU Cargo 1,039 11-17N, 108-55E Sunk May 30 1945 HOKOKU MARU Cargo 520 4-09S, 114-16E Sunk 7 Vessels 18,057 USS Blueback Jun 27 1945 SUBMARINE CHASER NO 2 Submarine Chaser 300 7-25S, 116-00E Sunk USS Bluefish Sep 26 1943 KASASAGI Motor Torpedo Boat 595 5-50S, 121-57E Sunk Sep 28 1943 AKASHI MARU Cargo 3,227 6-11S, 126-00E Sunk
USS Bluefish Date Name of Vessel Type of Vessel Tonnage Location Assessment Nov 8 1943 KYOKUEI MARU Tanker 10,570 16-44N, 116-22E Sunk Nov 18 1943 SANAYE Old Destroyer 820 4-52N, 122-07E Sunk Dec 30 1943 ICHIYU MARU Tanker 5,061 2-45S, 109-10E Sunk Jan 4 1944 HAKKO MARU Tanker 6,046 7-10N, 108-25E Sunk Mar 4 1944 OMINESAN MARU Tanker 10,536 5-32N, 109-09E Sunk Jun 16 1944 NANSHIN MARU Passenger-Cargo 1,422 2-28N, 118-09E Sunk Jun 21 1944 KANAN MARU Cargo 3,312 4-04S, 116-45E Sunk Aug 19 1944 HAYASUI Tanker 6,500 e 17-034N, 119-24E Sunk Jul 9 1945 SUBMARINE CHASER NO 50 Submarine Chaser 100 e 2-13N, 105-03E Sunk Jul 14 1945 I 351 Submarine 2,650 4-30N, 110-00E Sunk 12 Vessels 50,839 USS Bluegill Apr 27 1944 YUBARI Light Cruiser 3,500 5-20N, 132-16E Sunk May 1 1944 ASOSAN MARU Cargo 8,812 7-07N, 129-56E Sunk May 20 1944 MIYAURA MARU Cargo 1,856 2-14N, 128-00E Sunk Aug 7 1944 SANJU MARU Cargo 4,642 6-04N, 124-22E Sunk Aug 13 1944 SUBMARINE CHASER NO 12 Submarine Chaser 300 6-17N, 126-09E Sunk Aug 13 1944 KOJUN MARU Cargo 1,931 6-17N, 126-09E Sunk Oct 18 1944 ARABIA MARU Transport 9,480 14-06N, 119-40E Sunk Oct 18 1944 CHINZEI MARU Cargo 1,999 14-06N, 119-40E Sunk Oct 18 1944 HAKUSHIKA MARU Passenger-Cargo 8,150 14-06N, 119-40E Sunk Mar 28 1945 HONAN MARU Tanker 5,542 12-39N, 109-27E Sunk 10 Vessels 46,212 USS Boarfish Jan 31 1945 ENKI MARU Cargo 6,968 14-55N, 109-01E Sunk USS Bonefish Sep 27 1943 KASHIMA MARU Transport 9,908 10-14N, 109-45E Sunk Oct 10 1943 TEIBI MARU Transport 10,086 14-44N, 110-19E Sunk
USS Bonefish Date Name of Vessel Type of Vessel Tonnage Location Assessment Oct 10 1943 ISUZUGAWA Cargo 4,212 14-44N, 110-19E Sunk Nov 29 1943 SUEZ MARU Cargo 4,646 6-22N, 116-35E Sunk Dec 1 1943 NICHIRYO MARU Passenger-Cargo 2,721 1-31N, 120-51E Sunk Apr 26 1944 TOKIWA MARU Passenger-Cargo 806 6-12N, 125-47E Sunk May 14 1944 INAZUMA Destroyer 1,950 5-08N, 119-38E Sunk Jul 30 1944 KOKUYO MARU Tanker 10,026 6-03N, 119-54E Sunk Sep 28 1944 ANJO MARU Tanker 2,068 13-16N, 120-08E Sunk Oct 14 1944 FUSHIMI MARU Cargo 2,542 16-12N, 119-45E Sunk Jun 13 1945 OSHIKAYAMA MARU Cargo 6,892 38-30N, 136-58E Sunk Jun 19 1945 KONZAN MARU Passenger-Cargo 5,488 37-13N, 137-18E Sunk 12 Vessels 61,345 USS Bowfin Sep 25 1943 KIRISHIMA MARU Passenger-Cargo 8,120 9-44N, 111-56E Sunk Nov 26 1943 OGURASAN MARU Tanker 5,069 12-48N, 109-34E Sunk Nov 26 1943 TAINAN MARU Cargo 5,407 13-02N, 109-28E Sunk Nov 27 1943 VAN VOLLENHOVEN Cargo 691 13-01N, 109-30E Sunk Nov 28 1943 SYDNEY MARU Passenger-Cargo 5,425 12-46N, 109-42E Sunk Nov 28 1943 TONAN MARU Tanker 9,866 12-46N, 109-42E Sunk Jan 17 1944 SHOYU MARU Cargo 4,408 18N, 118-37E Sunk Mar 10 1944 TSUKIKAWA MARU Cargo 4,470 1-30S, 128-17E Sunk Mar 24 1944 SHINKYO MARU Cargo 5,139 5-27N, 125-38E Sunk Mar 24 1944 BENGAL MARU Cargo 5,399 5-27N, 125-38E Sunk Aug 22 1944 TSUSHIMA MARU Passenger-Cargo 6,754 29-32N, 129-31E Sunk Feb 17 1945 COAST DEF VESSEL NO 56 Frigate 750 e 33-53N, 139-43E Sunk May 1 1945 CHOWA MARU Passenger-Cargo 2,719 41-06N, 144-28E Sunk May 8 1945 DAITO MARU NO 3 Cargo 880 39-37N, 142-07E Sunk Jun 11 1945 SHINYO MARU NO 3 Passenger-Cargo 1,898 39-23N, 128-59E Sunk Jun 13 1945 AKIURA MARU Cargo 887 39-13N, 128-07E Sunk 16 Vessels 67,882 USS Bream Jun 16 1944 YUKI MARU Cargo 5,704 2-19N, 128-40E Sunk Apr 29 1945 TEISHU MARU Ex-Submarine Tender 1,230 4-11S, 111-17E Sunk 2 Vessels 6,934
USS Burrfish Date Name of Vessel Type of Vessel Tonnage Location Assessment May 7 1944 ROSSBACK Tanker 5,894 33-14N, 134-40E Sunk USS Bumper Jul 20 1945 KYOEI MARU NO 3 Tanker 1,189 8-08N, 103-40E Sunk USS Cabezon Jun 19 1945 ZAOSAN MARU Cargo 2,631 50-39N, 154-38E Sunk USS Cabrilla Jan 4 1944 TAMON MARU NO 8 Cargo 2,705 11-05N, 109-10E Sunk May 26 1944 SANYO MARU Ex-Seaplane Tender 8,360 2-48N, 124-19E Sunk Jul 17 1944 MAYA MARU Passenger-Cargo 3,145 7-40N, 122-03E Sunk Oct 1 1944 ZUIYO MARU Tanker 7,385 16-15N, 119-43E Sunk Oct 1 1944 KYOKUHO MARU Tanker 10,059 16-15N, 119-43E Sunk Oct 6 1944 YAMAMIZU MARU NO 2 Cargo 5,154 17-31N, 120-21E Sunk Oct 7 1944 SHINYO MARU NO 8 Cargo 1,959 17-50N, 119-37E Sunk 7 Vessels 38,767 USS Capelin Nov 11 1943 KUNITAMA MARO Cargo 3,127 3-08S, 127-38E Sunk USS Cavalla Jun 19 1944 SHOKAKU Aircraft Carrier 30,000 11-50N, 137-57E Sunk Nov 25 1944 SHIMOTSUKI Destroyer 2,300 2-21N, 107-20E Sunk Jan 5 1945 SHUNSEN MARU Cargo 971 5-00S, 112-16E Sunk Jan 5 1945 KANKO MARU Ex-Net Tender 909 5-00S, 112-16E Sunk 4 Vessels 34,180
USS Cero Date Name of Vessel Type of Vessel Tonnage Location Assessment May 23 1944 TAIJUN MARU Cargo 2,825 2-38N, 128-08E Sunk Aug 5 1944 TSURUMI Tanker 6,500 e 5-50N, 125-42E Sunk Apr 29 1945 TAISHU MARU Cargo 6,925 39-15N, 141-58E Sunk May 4 1945 SHINPEN MARU Cargo 884 39-28N, 142-04E Sunk May 13 1945 SHINNAN MARU Cargo 1,025 39-07N, 141-57E Sunk 5 Vessels 18,159 USS Chub May 21 1945 MINESWEEPER NO 34 Minesweeper 492 6-15S, 116-01E Sunk USS Cobia Jul 13 1944 TAISHI MMARU Cargo 2,800 27-23N, 140-33E Sunk Jul 18 1944 UNKAI MARU NO 10 x-Gunboat 855 29-12N, 139-10E Sunk Jul 18 1944 NISSHU MARU Cargo 7,785 28-43N, 139-24E Sunk Jan 14 1945 YURISHIMA Coastal Minelayer 720 5-51N, 103-16E Sunk Jun 8 1945 NINSHIN MARU NO 22 Tanker 834 e 8-56N, 105-37E Sunk Jun 8 1945 HAKUSA Landing Craft 3,841 8-56N, 105-37E Sunk 6 Vessels 16,835 USS Cod Feb 23 1944 OGURA MARU NO 3 Tanker 7,350 3-53N, 129-17E Sunk Feb 27 1944 TAISOKU MARU Cargo 2,473 1-48N, 127-32E Sunk May 10 1944 KARUKAYA Old Destroyer 820 15-38N, 119-25E Sunk May 10 1944 SHOHEI MARU Cargo 7,256 15-38N, 119-25E Sunk Aug 3 1944 SEIKO MARU Ex-Net Tender 708 1-45S, 126-14E Sunk Aug 14 1944 TRANSPORT NO 129 Landing Craft 1,000 e 4-17S, 126-46E Sunk Oct 5 1944 TATSUSHIRO MARU Cargo 6,886 13-01N, 120-15E Sunk Apr 25 1945 MINESWEEPER NO 41 Ninesweeper 492 25-53N, 121-08E Sunk 8 Vessels 26,985
USS Crevalle Date Name of Vessel Type of Vessel Tonnage Location Assessment Nov 15 1943 KYOKKO MARU Passenger-Cargo 6,783 14-53N, 119-54E Sunk Jan 26 1944 BUSHOH MARU Ex-Gunboat 2,552 8-27N, 109-12E Sunk Apr 25 1944 KASHIWA MARU Ex-Net Tender 976 7-09N, 116-48E Sunk May 6 1944 NISSHIN MARU Tanker 16,801 7-17N, 116-51E Sunk Jul 26 1944 AKI MARU Passenger-Cargo 11,409 18-28N, 117-59E Sunk Jul 28 1944 HAKURASAN MARU Passenger-Cargo 6,650 16-18N, 119-44E Sunk Jun 9 1945 HOKUTO MARU Cargo 2,215 40-54N, 139-48E Sunk Jun 10 1945 DAIKI MARU Cargo 2,217 40-44N, 139-48E Sunk Jun 11 1945 HAKUSAN MARU Cargo 2,211 40-34N, 139-51E Sunk 9 Vessels 51,814 USS Croaker Aug 7 1944 NAGARA Light Cruiser 5,700 32-09N, 129-53E Sunk Aug 14 1944 DAIGEN MARU NO 7 Ex-Gunboat 1,289 37-25N, 125-12E Sunk Aug 17 1944 SANSHO MARU Cargo 6,862 35-38N, 126-10E Sunk Oct 9 1944 SHINKI MARU Cargo 2,211 32-08N, 129-51E Sunk Oct 23 1944 BYAKURAN MARU Cargo 887 35-39N, 126-05E Sunk Oct 24 1944 MIKAGE MARU Cargo 2,761 33-00N, 125-49E Sunk 6 Vessels 19,710 USS Dace Jul 27 1944 KYOEI MARU NO 2 Tanker 1,157 5-25N, 121-43E Sunk Oct 14 1944 NITTETSU MARU Cargo 5,993 6-05N, 115-55E Sunk Oct 14 1944 EIKYO MARU Cargo 6,948 6-05N, 115-55E Sunk Oct 23 1944 MAYA Heavy Cruiser 12,200 9-29N, 117-20E Sunk Dec 28 1944 NOZAKI Ex-Supply Ship 1,000 e 12-39N, 109-30E Sunk Jun 10 1945 HAKUYO MARU Cargo 1,391 47-25N, 149-04E Sunk 6 Vessels 28,689
USS Darter Date Name of Vessel Type of Vessel Tonnage Location Assessment Mar 30 1944 FUJIKAWA MARU Cargo 2,829 1-56N, 133-00E Sunk Jun 29 1944 TSUGARU Minelayer 4,400 e 2-19N, 127-57E Sunk Oct 23 1944 ATAGO Heavy Cruiser 12,200 9-24N, 117-11E Sunk Vessels USS Drum May 2 1942 MIZUHO Seaplane Tender 9,000 34-26N, 138-14E Sunk May 9 1942 UNKNOWN Cargo 4,000 e 33-48N, 136-08E Probably Sunk May 13 1942 SHONAN MARU Cargo 5,264 34-39N, 139-10E Sunk May 25 1942 KITAKA MARU Cargo 2,380 34-58N, 140-04E Sunk Oct 8 1942 HAGUE MARU Passenger-Cargo 5,,641 34-06N, 136-22E Sunk Oct 9 1942 HACHIMANZAN MARU Cargo 2,461 33-27N, 136-01E Sunk Oct 20 1942 RYUNAN MARU Cargo 5,106 34-08N, 136-46E Sunk Apr 9 1943 OYAMA MARU Cargo 3,809 00-32N, 150-05E Sunk Apr 18 1943 NISSHUN MARU Cargo 6,380 1-55N, 148-24E Sunk Jun 17 1943 MYOKO MARU Passenger-Cargo 5,087 2-03S, 153-44E Sunk Sep 8 1943 HAKUTETSU MARU NO 13 Cargo 1,334 2-44S, 141-36E Sunk Nov 17 1943 HIE MARU Ex-Supply Ship 11,621 1-48N, 148-24E Sunk Oct 24 1944 SHIKISAN MARU Passenger-Cargo 4,725 20-27N, 118-31E Sunk Oct 26 1944 TAISHO MARU Cargo 6,886 19-21N, 120-50E Sunk Oct 26 1944 TAIHAKU MARU Cargo 6,886 19-21N, 120-50E Sunk 15 Vessels 80,580 USS Finback Oct 14 1942 TEISON MARU Transport 7,0007 25-22N, 1221-15E Sunk Oct 20 1942 YAMAFUJI MARU Cargo 5,359 24-26N, 120-26E Sunk Oct 20 1942 AFRICA MARU Cargo 9,475 24-26N, 120-26E Sunk May 27 1943 KOCHI MARU Cargo 2,910 8-41N, 134-02E Sunk Jun 8 1943 KAHOKU MARU Ex-Gunboat 3,350 9-07N, 134-31E Sunk Jun 11 1943 GENOA MARU Cargo 6,785 7-36N, 134-17E Sunk Jun 30 1943 RYUZAN MARU Cargo 4,720 6-31S, 111-26E Sunk Aug 3 1943 KAISHO MARU Passenger-Cargo 6,070 5-18S, 111-52E Sunk
USS Finback Date Name of Vessel Type of Vessel Tonnage Location Assessment Aug 19 1943 SUBMARINE CHASER NO 109 Submarine Chaser 200 3-01S, 125-50E Sunk Jan 2 1944 ISSHIN MARU Tanker 10,000 e 29-30N, 128-50E Sunk Sep 11 1944 HAKUUN MARU NO 2 Cargo 860 27-37N, 140-21E Sunk Sep 11 1944 HASSHO MARU Cargo 536 27-37N, 140-21E Sunk Dec 16 1944 JUSAN MARU Cargo 2,111 27-35N, 141-35E Sunk 13 Vessels 59,383 USS Flasher Jan 18 1944 YOSHIDA MARU Ex-Gunboat 2,900 23-50N, 151-28E Sunk Feb 5 1944 TAISHIN MARU Cargo 1,723 13-09N, 120-24E Sunk Feb 14 1944 MINRYO MARU Cargo 2,193 13-44N, 120-40E Sunk Feb 14 1944 KOHUAN MARU Cargo 3,712 13-40N, 120-27E Sunk Apr 29 1944 TAHURE River Gunboat 644 13-02N, 109-28E Sunk Apr 29 1944 SONG GIANG MARU Cargo 1,065 13-02N, 109-28E Sunk May 3 1944 TEIESEN MARU Cargo 5,050 12-54N, 114-07E Sunk Jun 29 1944 NIPPO MARU Cargo 6,079 00-43N, 105-31E Sunk Jul 7 1944 KOTO MARU Cargo 3,557 13-02N, 109-26E Sunk Jul 19 1944 OI Light Cruiser 5,700 12-45N, 114-20E Sunk Jul 26 1944 OTORIYAMA MARU Tanker 5,280 18-10N, 117-56E Sunk Sep 18 1944 SAIGON MARU Ex-Light Cruiser 5,350 14-11N, 120-02E Sunk Sep 27 1944 URAL MARU Transport 6,374 15-40N, 117-18E Sunk Oct 4 1944 TAIBIN MARU Cargo 6,886 15-26N, 119-49E Sunk Dec 4 1944 KISHINAMI Destroyer 2,100 13-12N, 116-37E Sunk Dec 4 1944 IWANAMI Desteoyer 2,100 13-12N, 116-37E Sunk Dec 4 1944 HAKKO MARU Tanker 10,022 13-12N, 116-37E Sunk Dec 22 1944 OMUROSAN MARU Tanker 9,204 15-04N, 109-06E Sunk Dec 22 1944 OTOWASAN MARU Tanker 9,204 15-04N, 109-06E Sunk Dec 22 1944 ARITA MARU Tanker 10,238 15-04N, 109-06E Sunk Feb 25 1945 Koho MARU Cargo 850 20-04N, 111-22E Sunk 21 Vessels 100,231
USS Flier Date Name of Vessel Type of Vessel Tonnage Location Assessment Jun 4 1944 HAKUSAN MARU Transport 10,380 22-55N, 136-44E Sunk USS Flounder Jun 17 1944 NIPPONKAI MARU Ex-Motor Torpedo Tender 2,681 6-58N, 127-52E Sunk USS Flying Fish Feb 16 1943 HYUGA MARU Cargo 994 18-30N, 145-47E Sunk Apr 12 1943 SAPPORO MARU No 12 Cargo 2,865 41-24N, 141-30E Sunk Apr 17 1943 AMAHO MARU Cargo 2,769 42-04N, 143-22E Sunk Apr 24 1943 KASUGA MARU Cargo 1,377 41-43N, 141-21E Sunk Jul 2 1943 CANTON MARU Cargo 2,820 25-07N, 119-18E Sunk Oct 27 1943 NANMAN MARU Cargo 6,550 12-34N, 134-48E Sunk Dec 16 1043 GINYO MMARU Cargo 8,613 22-27N, 120-08E Sunk Dec 27 1943 KYUEI MARU Tanker 10,171 21-42N, 118-05E Sunk Mar 12 1944 TAIJIN MARU Cargo 1,937 25-53N, 131-19E Sunk Mar 16 1944 ANZAN MARU Passenger-Cargo 5,493 27-41N, 128-41E Sunk Apr 1 1944 NINAMI MARU Cargo 2,398 25-56N, 131-18E Sunk May 25 1944 TAITO MARU Passenger-Cargo 4,466 11-30N, 134-55E Sunk May 25 1944 OSAKA MARU Passenger-Cargo 3,740 11-30N, 1314-55E Sunk Jun 10 1945 TAGA MARU Cargo 2,220 41-40N, 129-52E Sunk Jun 11 1945 MEISEI MARU Passenger-Cargo 1,893 41-47N, 131-44E Sunk 15 Vessels 58,306 USS Gabilan Jul 17 1944 MINESWEEPER NO 25 Minesweeper 492 33-51N, 138-35E Sunk Oct 31 1944 KAIYO NO 6 Miscellaneous Auxiliary 100 e 32-50N, 134-21E Sunk Apr 14 1945 KAKO MARU Cargo 872 5-19S, 117-06E Sunk 3 Vessels 1,354
USS Gar Date Name of Vessel Type of Vessel Tonnage Location Assessment Mar 13 1942 CHICHIBU MARU Cargo 1,520 33-53N, 139-29E Sunk Dec 8 1942 HEINAN MARU Cargo 661 00-52N, 118-54E Sunk May 9 1943 ASO MARU Cargo 703 9-09N, 122-50E Sunk May 15 1943 MEIKAI MARU Passenger-Cargo 3,197 13-07N, 121-49E Sunk May 15 1943 INDUS MARU Passenger-Cargo 4,361 13-07N, 121-49E Sunk Aug 20 1943 SEIZAN MARU Cargo 955 00-58N, 119-01E Sunk Jan 20 1944 KOYU MARU Cargo 5,325 6-40N, 134-17E Sunk Jan 23 1944 TAIAN MARU Cargo 3,670 5-45N, 134-45E Sunk 8 Vessels 20,392 USS Gato Jan 21 1943 KENKON MARU Transport 4,575 6-12S, 155-51E Sunk Jan 29 1943 NICHIUN MARU Cargo 2,723 6-21S, 156-04E Sunk Feb 15 1943 SURUGA MARU Cargo 991 6-27S, 156-02E Sunk Nov 30 1943 COLUMBIA MARU Passenger-Cargo 5,618 1-56N, 147-23E Sunk Dec 20 1943 TSUNESHIMA MARU Cargo 2,926 1-30N, 148-36E Sunk Feb 26 1944 DAIGEN MARU NO 3 Passenger-Cargo 5,256 00-55S, 139-02E Sunk Mar 12 1944 OKINOYAMA MARU NO 3 Cargo 871 00-25S, 132-55E Sunk Feb 14 1945 COAST DEF VESSEL NO 9 Frigate 800 e 34-48N, 125-58E Sunk Feb 21 1945 TAIRIKU MARU Cargo 2,325 35-24N, 125-23E Sunk 9 Vessels 26,085 USS Grampus Mar 1 1942 KAIJO MARU NO 2 Tanker 8,636 4-52N, 151-20E Sunk USS Grayback Mar 17 1942 ISHIKARI MARU Cargo 3,291 27-05N, 142-05E Sunk Jan 2 1943 I 18 Submarine 2,180 8-49S, 157-09E Sunk May 11 1943 YODOGAWA MARU Cargo 6,441 00-47S, 149-02E Sunk
USS Grayback Date Name of Vessel Type of Vessel Tonnage Location Assessment May 17 1943 ENGLAND MARU Cargo 5,830 1-00S, 148-40E Sunk Oct 14 1943 KOZUI MARU Passenger-Cargo 7,072 27-35N, 127-27E Sunk Oct 22 1943 AWATA MARU Ex-Light Cruiser 7,397 26-48N, 124-56E Sunk Dec 18 1943 GYOKUREI MARU Cargo 5,588 26-22N, 128-20E Sunk Dec 19 1943 NUMAKAZE Destroyer 1,300 26-29N, 128-26E Sunk Dec 21 1943 KONAN MARU Cargo 2,627 3-24N, 129-53E Sunk Dec 21 1943 KASHIWA MARU Ex-Net Tender 515 30-24N, 129-53E Sunk Feb 19 1944 TAIKEI MARU Cargo 4,739 21-46N, 120-06E Sunk Feb 19 1944 TOSHIN MARU Cargo 1,917 21-46N, 120-06E Sunk Feb 24 1944 NAMPO MARU Tanker 10,033 24-20N, 122-25E Sunk Feb 27 1944 CEYLON MARU Cargo 4,905 31-50N, 127-45E Sunk 14 Vessels 63,835 USS Grayling Apr 13 1942 RYUJIN MARU Cargo 6,243 31-51N, 132-50E Sunk Nov 10 1942 UNKNOWN MARU Cargo 4,000 e 7-12N, 150-47E Sunk Jan 26 1943 USHIO MARU Cargo 749 13-26N, 121-16E Sunk Apr 9 1943 SHANGHAI MARU Cargo 4,103 13-11N, 121-45E Sunk Aug 27 1943 MEIZAN MARU Passenger-Cargo 5,480 13-13N, 121-23E Sunk 5 Vessels 20,575 USS Greenling May 4 1942 KINJOSAN MARU Cargo 3,262 8-44N, 150-56E Sunk Aug 5 1942 BRASIL MARU Transport 12,752 9-50N, 150-38E Sunk Aug 6 1942 PALAO MARU Passenger-Cargo 4,495 9-04N, 150-38E Sunk Oct 3 1942 KINKAI MARU Cargo 5,852 38-46N, 142-02E Sunk Oct 4 1942 SETSUYO MARU Cargo 4,147 39-48N, 142-08E Sunk Oct 14 1942 TAKUSEI MARU Cargo 3,515 39-33N, 142-15E Sunk Oct 18 1942 HAKONESAN MARU Cargo 6,673 38-46N, 142-03E Sunk Dec 22 1942 PATROL BOAT NO 35 Old Destroyer 750 e 5-05S, 156-04E Sunk Dec 30 1942 UNKNOWN MARU Cargo 4,000 e 00-41N, 148-52E Sunk Dec 30 1942 HITERU MARU Cargo 5,857 00-41N, 148-52E Sunk
USS Greenling Date Name of Vessel Type of Vessel Tonnage Location Assessment Jan 16 1943 KINPOSAN MARU Cargo 3,261 2-47S, 149-10E Sunk Dec 31 1943 SHOHO MARU Cargo 1,936 5-18N, 160-16E Sunk Nov 7 1944 KIRI MARU NO 8 Cargo 939 34-32N, 138-33E Sunk Nov 7 1944 KOTAI MARU Tanker 975 34-32N, 138-33E Sunk Nov 10 1944 PATROL BOAT NO 46 Old Destroyer 820 34-30N, 13S-34E Sunk 15 Vessels 59,234 USS Grenadier May 8 1942 TAIYO MARU Transport 14,457 34-40N, 127-54E Sunk USS Grouper Sep 21 1942 TONE MARU Cargo 4,070 31-18N, 123-27E Sunk Oct 1 1942 LISBON MARU Transport 7,053 29-57N, 122-56E Sunk Dec 17 1942 BANDOENG MARU Passenger-Cargo 4,003 4-54S, 154-17E Sunk Jun 24 1944 KUMANOYAMA MARU Cargo 2,857 34-36N, 139-32E Sunk 4 Vessels 17,983 USS Growler Jul 5 1942 ARARE Destroyer 1,850 52-00N, 177-40E Sunk Aug 25 1942 SENYO MARU Ex-Gunboat 2,904 22-23N, 120-10E Sunk Aug 31 1942 EIFUKU MARU Cargo 5,866 25-43N, 122-38E Sunk Sep 4 1942 KASHINO Supply Ship 4,000 e 25-43N, 122-38E Sunk Sep 7 1942 TAIKA MARU Cargo 2,204 25-31N, 121-33E Sunk Jan 16 1943 CHIFUKU MARU Passenger-Cargo 5,857 4-00S, 151-55E Sunk Jun 19 1943 MIYADONO MARU Passenger-Cargo 5,196 1-38N, 148-14E Sunk Jun 29 1944 KATORI MARU Cargo 1,920 19-09N, 120-27E Sunk Sep 12 1944 SHIKINAMI Destroyer 1,950 18-16N, 114-40E Sunk Sep 12 1944 HIRADO Frigate 860 17-54N, 114-49E Sunk 10 Vessels 32,607
USS Grunion Date Name of Vessel Type of Vessel Tonnage Location Assessment Jul 15 1942 SUBCHASER NO 25 Subchaser 300 52-02N, 177-42E Sunk Jul 15 1942 SUBCHASER NO 27 Subchaser 300 52-02N, 177-42E Sunk 2 Vessels 600 USS Guardfish Aug 24 1942 SEIKAI MARU Passenger-Cargo 3,109 38-12N, 141-30E Sunk Sep 2 1942 TEIKYU MARU Cargo 2,332 42-08N, 141-15E Sunk Sep 4 1942 CHITA MARU Cargo 2,276 40-10N, 141-53E Sunk Sep 4 1942 TENYU MARU Cargo 3,738 40-14N, 141-51E Sunk Sep 4 1942 KAIMEI MARU Cargo 5,254 40-14N, 141-51E Sunk Oct 21 1942 UNKNOWN MARU Cargo 4,000 e 27-03N, 122-42E Sunk Oct 21 1942 MICHIHO MARU Cargo 6,363 27-03N, 122-42E Sunk Jan 12 1943 PATROL BOAT NO 1 Old Destroyer 750 e 2-51S, 149-43E Sunk Jan 22 1943 UNKNOWN MARU Cargo 4,000 e 3-55S, 152-07E Sunk Jan 23 1943 HAKAZE Destroyer 1,300 2-47S, 150-38E Sunk Jun 13 1943 SUZUYA MARU Cargo 901 3-080S, 151-24E Sunk Oct 8 1943 KASHU MARU Cargo 5,460 00-25S, 146-22E Sunk Jan 14 1944 KENYO MARU Tanker 10,022 5-22N, 141-27E Sunk Feb 1 1944 UMIKAZE Destroyer 1,580 7-10N, 151-43E Sunk Jul 16 1944 JINZAN MARU Passenger-Cargo 5,215 18-20N, 119-42E Sunk Jul 16 1944 MANTAI MARU Cargo 5,863 18-20N, 119-42E Sunk Jul 17 1944 HIYAMA MARU Cargo 2,838 18-17N, 119-50E Sunk Jul 19 1944 TEIRYU MARU Cargo 6,550 20-07N, 118-29E Sunk Sep 25 1944 MIYAKAWA MARU NO 2 Cargo 873 38-30N, 124-06E Sunk 19 Vessels 72.424 USS Guavina Apr 26 1944 NOSHIRO MARU Cargo 2,333 28-37N, 141-00E Sunk Jul 4 1944 TAMA MARU Passenger-Cargo 3,052 7-33N, 133-45E Sunk Sep 15 1944 TRANSPORT NO 3 Landing Craft 1,500 e 5-34N, 125-23E Sunk Nov 22 1944 DOWA MARU Cargo 1,916 10-22N, 114-21E Sunk Feb 7 1945 TAIGYO MARU Cargo 6,892 7-03N, 106-05E Sunk Feb 20 1945 EIYO MARU Tanker 8,673 11-17N, 109-00E Sunk 6 Vessels 24,366
USS Gudgeon Date Name of Vessel Type of Vessel Tonnage Location Assessment Jan 27 1942 I 173 Submarine 1,785 28-24N, 178-35E Sunk Mar 26 1942 UNKNOWN MARU Cargo 4,000 e 32-31N, 127-10E Sunk Mar 27 1942 UNKNOWN MARU Passenger-Cargo 4,000 e 33-53N, 127-33E Sunk Aug 3 1942 NANIWA MARU Cargo 4,858 7-37N, 150-18E Sunk Oct 21 1942 CHOKO MARU Passenger-Cargo 6,783 3-30S, 150-30E Sunk Mar 22 1943 MEIGEN MARU Cargo 5,434 6-31S, 112-47E Sunk Mar 29 1943 TOHOH MARU Tanker 9,997 00-00N, 118-18E Sunk Apr 28 1943 KAMAKUR MARU Transport 17,526 10-18N, 121-44E Sunk May 12 1943 SUMATRA MARU Cargo 5,862 12-43N, 124-08E Sunk Sep 28 1943 TAIAN MARU Passenger-Cargo 3,158 15-22N, 145-38E Sunk Nov 23 1943 NEKKA MARU Transport 6,784 28-49N, 122-11E Sunk Nov 23 1943 WAKAYMIYA Frigate 860 28-49N, 122-11E Sunk 12 Vessels 71,047 USS Guitarro May 30 1944 SHISEN MARU Cargo 2,201 24-30N, 122-30E Sunk Jun 2 1944 AWAJI Frigate 900 e 22-34N, 121-51E Sunk Aug 7 1944 KUSAKAKI Frigate 900 e 14-51N, 119-59E Sunk Aug 10 1944 SHINEI MARU Cargo 5,135 16-17N, 119-46E Sunk Aug 21 1944 UGA MARU Passenger-Cargo 4,433 13-23N, 120-19E Sunk Aug 27 1944 NANSHIN MARU NO 27 Tankner 834 12-28N, 119-57E Sunk Oct 31 19844 KOMEI MARU Cargo 2,857 15-17N, 119-49E Sunk Oct 31 1944 PACIFIC MARU Passenger-Cargo 5,872 15-17N, 119-49E Sunk 8 Vessels 23,132 USS Gunnel Jun 15 1943 KOYO MARU Cargo 6,435 33-55N, 127-38E Sunk Jun 19 1943 TOKIWA MARU Cargo 6,971 32-31N, 126-19E Sunk Dec 4 1943 HIYOSI MARU Passenger-Cargo 4,046 29-45N, 145-55E Sunk Nov 8 1944 SAGI Motor Torpedo Boat 595 16-09N, 118-56E Sunk Nov 17 1944 SHUNTEN MARU Passenger-Cargo 5,623 16-56N, 110-30E Sunk Nov 17 1944 HIYODORI Motor Torpedo Boat 595 16-56N, 110-30E Sunk 6 Vessels 24,265
USS Gurnard Date Name of Vessel Type of Vessel Tonnage Location Assessment Jul 11 1943 TAIKO MARU Cargo 1,925 12-53N, 131-49E Sunk Oct 8 1943 TAINAN MARU Cargo 5,655 18-24N, 119-09E Sunk Oct 8 1943 DAINICHI MARU Passenger-Cargo 5,813 18-24N, 119-09E Sunk Dec 24 1943 SEIZAN MARU NO 2 Cargo 1,898 34-02N, 136-19E Sunk Dec 24 1943 TOFUKU MARU Cargo 5,857 33-58N, 136-16E Sunk May 6 1944 TENSHINZAN MARU Cargo 6,886 2-42N, 124-10E Sunk May 6 1944 TAIJIMA MARU Passenger-Cargo 6,995 2-24N, 124-10E Sunk May 6 1944 ADEN MARU Passenger-Cargo 5,824 2-42N, 124-10E Sunk May 24 1944 TATEKAWA MARU Tanker 10,090 5-45N, 124-45E Sunk Nov 3 1944 TAIMEI MARU Cargo 6,923 5-48N, 111-05E Sunk 10 Vessels 57,866 USS Haddo Aug 21 1944 KINRYO MARU Passenger-Cargo 4,390 13-23N, 120-19E Sunk Aug 21 1944 NORFOLK MARU Passenger-Cargo 6,756 13-23N, 120-19E Sunk Aug 22 1944 SADO Frigate 860 14-15N, 120-05E Sunk Aug 23 1944 ASAKAZE Destroyer 1,270 16-06N, 119-44E Sunk Sep 21 1944 KATSURIKI Surveying Ship 1,540 13-35N, 119-06E Sunk Nov 9 1944 HISHI MARU NO 2 Tanker 856 12-27N, 120-05E Sunk Jul 1 1945 COAST DEF VESSEL NO 72 Frigate 800 38-08N, 124-38E Sunk Jul 1 1945 TAIUN MARU NO O1 Cargo 2,220 38-08N, 124-38E Sunk Jul 1 1945 KONRI MARU Cargo 3,106 38-08N, 124-38E Sunk 9 Vessels 21,618 USS Haddock Aug 22 1942 UNKNOWN MARU Transport 4,000 e 26-07N, 121-29E Sunk Aug 26 1942 TEISHUN MARU Cargo 2,251 27-05N, 121-23E Sunk Nov 3 1942 TEKKAI MMARU Cargo 1,925 32-02N, 126-15E Sunk Nov 11 1942 VENICE MARU Passenger-Cargo 6,571 35-36N, 123-44E Sunk Jan 17 1943 UNKNOWN MARU Cargo 4,000 e 34-31N, 137-48E Sunk Apr 3 1943 ARIMA MARU Passenger-Cargo 7,389 10-26N, 135-00E Sunk Apr 8 1943 TOYO MARU Cargo 1,916 10-26N, 135-00E Sunk
USS Haddock Date Name of Vessel Type of Vessel Tonnage Location Assessment Jul 21 1943 SAIPAN MARU Transport 5,533 16-18N, 134-09E Sunk 8 Vessels 33,585 USS Hake Jan 12 1944 NIGITSU MARU Transport 9,547 23-15N, 133-49E Sunk Feb 1 1944 TACOMA MARU Passenger-Cargo 5,772 1-35N, 128-58E Sunk Feb 1 1944 NKNKA MARU Cargo 4,065 1-35N, 128-58E Sunk Mar 27 1944 YAMAMIZU MARU Tanker 5,174 3-52S, 109-40E Sunk Jun 8 1944 KAZEGUMO Destroyer 1,900 6-03N, 125-57E Sunk Jun 17 1944 KINSHU MARU Cargo 5,591 6-17N, 126-17E Sunk Jun 20 1944 HIBI MARU Passenger-Cargo 5,874 5-35N, 125-15E Sunk 7 Vessels 37,923 USS Halibut Dec 12 1942 GYOKUZAN MARU Cargo 1,970 40-19N, 142-27E Sunk Dec 16 1942 SHINGO MARU Cargo 4,740 41-10N, 141-32E Sunk Dec 16 1942 GENZAN MARU Passenger-Cargo 5,708 41-10N, 141-32E Sunk Feb 20 1943 SHINKOKU MARU Passenger-Cargo 3,991 15-09N, 159-30E Sunk Mar 3 1943 NICHIYU MARU Passenger-Cargo 6,817 10-22N, 145-21E Sunk Aug 30 1943 TAIBUN MARU Passenger-Cargo 6,581 41-53N, 141-10E Sunk Sep 6 1943 SHOGEN MARU Cargo 3,362 42-13N, 142-16E Sunk Nov 2 1943 EHIME MARU Cargo 4,653 28-18N, 134-48E Sunk Apr 12 1944 TAICHU MARU Passenger-Cargo 3,213 28-07N, 129-01E Sunk Apr 27 1944 GENBU MARU Passenger-Cargo 1,872 27-20N, 128-15E Sunk Apr 27 1944 KAMOME Coastal Minelayer 450 27-37N, 128-11E Sunk Oct 25 1944 AKITSUKI Destroyer 1,900 20-29N, 126-36E Sunk 12 Vessels 45,257
USS Hammerhead Date Name of Vessel Type of Vessel Tonnage Location Assessment Oct 1 1944 KOKUSEI MARU Cargo 5,396 6-30N, 1116-11E Sunk Oct 1 1944 HIGAME MARU Cargo 5,320 6-30N, 116-11E Sunk Oct 1 1944 HIYORI MARU Cargo 5,320 6-30N, 116-11E Sunk Oct 20 1944 UGO MARU Passenger-Cargo 3,684 4-52N, 113-24E Sunk Oct 20 1944 OYO MARU Passenger-Cargo 5,458 4-41N, 113-22E Sunk Feb 23 1945 YAKU Frigate 900 e 12-39N, 109-29E Sunk Mar 29 1945 COAST DEF VESSEL NO 884 Frigate 1,000 e 14-30N, 109-16E Sunk May 6 1945 KINREI MARU Tanker 850 8-15N, 102-15E Sunk May 15 1945 TOTTORI MARU Passenger-Cargo 5,973 9-21N, 102-25E Sunk Jul 10 1945 SAKURA MARU Cargo 900 9-38N, 101-30E Sunk Jul 10 1945 NANMEI MARU NO 5 Tanker 834 e 9-38N, 101-30E Sunk 11 Vessels 35,635 USS Harder Jun 23 1943 SAGARA MARU Ex-Seaplane Tender 7,189 33-45N, 138-10E Sunk Sep 9 1943 KOYO MARU Cargo 3,010 35-20N, 140-40E Sunk Sep 11 1943 YOKO MARU Cargo 1,050 33-50N, 139-33E Sunk Sep 19 1943 KACHISAN MARU Cargo 814 33-30N, 135-40E Sunk Sep 23 1943 KOWA MARU Cargo 4,520 34-15N, 137-00E Sunk Sep 23 1943 DAISHIN MARU Tanker 5,878 34-15N, 137-00E Sunk Nov 19 1943 UDO MARU Cargo 3,936 22-27N, 147-15E Sunk Nov 19 1943 HOKKO MARU Cargo 5,385 22-27N, 147-15E Sunk Nov 20 1943 NIKKO MARU Cargo 5,949 22-47N, 147-20E Sunk Apr 13 1944 IKAZUCHI Destroyer 1,9950 10-13N, 143-51E Sunk Apr 17 1944 MATSUE MARU Cargo 7,061 9-22N, 142-18E Sunk Jun 6 1944 MINATSUKI Destroyer 1,500 4-05N, 119-30E Sunk Jun 7 1944 HAYANAMI Destroyer 2,100 4-43N, 120-03E Sunk Jun 9 1944 TAMIKAZE Destroyer 1,900 5-42N, 120-41E Sunk Aug 22 1944 MATSUWA Frigate 860 14-15N, 120-05E Sunk Aug 22 1944 HIRURI Frigate 900 e 14-15N, 120-05E Sunk 16 Vessels 54,002 USS Hardhead Aug 18 1944 NATORI Light Cruiser 5,700 12-29N, 128-49E Sunk Nov 8 1944 MANEI MARU Tanker 5,226 13-53N, 119-26E Sunk Nov 25 1944 COAST DEF VESSEL NO 38 Frigate 800 e 14-22N, 119-57E Sunk
USS Hardhead Date Name of Vessel Type of Vessel Tonnage Location Assessment Feb 2 1945 NINSHIN MARU MARU NO 19 Tanker 834 e 5-40N, 103-17E Sunk Apr 6 1945 ARACSAN MARU Cargo 6,886 9-37N, 102-48E Sunk Jun 23 1945 SHUTTLE BOAT NO 833 Miscellaneous Auxiliary 200 e 5-50S, 114-18E Sunk Jun 23 1945 SUBMARINE CHASE NO 42 Submarine Chaser 100 5-50S, 114-18E Sunk Jun 23 1945 SUBMARINE CHASER NO 113 Submarine Chaser 200 e 5-10S, 114-18E Sunk Jul 23 1945 SUBMARINE CHASER NO 117 Submarine Chaser 200 3 8-10S, 115-29E Sunk 9 Vessels 20,146 USS Hawkbill Dec 15 1944 MOMO Destroyer 760 16-00N, 117-39E Sunk Feb 14 1945 SUBMARINE CHASER NO 4 Submarine Chaser 100 e 8-20S, 115-45E Sunk Feb 14 1945 SUBMARINE CHASER NO 114 Submarine Chaser 100 e 8-20S, 115-45E Sunk Feb 20 1945 DAIZEN MARU Cargo 5,396 00-42S, 106-18E Sunk May 16 1945 HATSUTAKA Minelayer 1,500 4-45N, 103-28E Sunk 5 Vessels 7,856 USS Herring Dec 14 1943 HAKOZAKI MARU Passenger-Cargo 3,948 33-10N, 125-55E Sunk Jan 1 1944 NAGOYA MARU Cargo-Aircraft Ferry 6,072 32-10N, 137-37E Sunk May 30 1944 ISHIGAKI Frigate 860 48-30N, 151-30E Sunk May 31 1944 HOKUYO MARU Cargo 1,590 48-00N, 153-00E Sunk Jun 1 1944 IWAKI MARU Cargo 3,124 48-00N, 153-00E Sunk Jun 1 1944 HIRURI MARU Passenger-Cargo 4,365 48-00N, 153-00E Sunk 6 Vessels 19,959 USS Hoe Feb 25 1944 NISSHO MARU Tanker 10,526 5-55N, 126-05E Sunk Oct 8 1944 KOHOKU MARU Passenger-Cargo 2,573 18-32N, 116-13E Sunk Feb 25 1945 SHONAN Frigate 900 e 17-08N, 110-01E Sunk 3 Vessels 13,999
USS Icefish Date Name of Vessel Type of Vessel Tonnage Location Assessment Oct 24 1944 TENSHIN MARU Cargo 4,236 19-31N, 118-10E Sunk Oct 26 1944 TAIYO MARU Cargo 4,168 19-04N, 120-36E Sunk 2 Vessels 8,404 USS Jack Jan 26 1943 TOYO MARU Passenger-Cargo 4,163 33-22N, 138-56E Sunk Jun 26 1943 SHOZAN MARU Cargo 5,859 33-22N, 138-56E Sunk Jul 4 1943 NIKKYU MARU Cargo 6,529 34-31N, 138-35E Sunk Feb 19 1944 KOKUEI MARU Tanker 5,154 14-34N, 114-11E Sunk Feb 19 1944 NANEI MARU Tanker 5,019 14-34N, 114-11E Sunk Feb 19 1944 NICHIRIN MARU Tanker 5,162 15-45N, 115-39E Sunk Feb 19 1944 ICHIYO MARU Tanker 5,106 15-40N, 115-48E Sunk Apr 26 1944 YOSHIDA MARU NO 1 Passenger-Cargo 5,425 18-06N, 119-47E Sunk Jun 25 1944 SAN PEDRO MARU Tanker 7,268 16-07N, 119-44E Sunk Jun 30 1944 TSURUSHIMA MARU Cargo 4,645 14-25N, 119-47E Sunk Jun 30 1944 MATSUKAWA MARU Cargo 3,825 14-25N, 119-47E Sunk Aug 29 1944 MINESWEEPER NO 28 Minesweeper 492 2-03N, 122-38E Sunk Aug 29 1944 MEXICO MARU Passenger-Cargo 5,785 2-07N, 122-38E Sunk Nov 14 1944 NICHIEI MARU Cargo 5,396 11-19N, 109-01E Sunk Nov 15 1944 YUZAN MARU NO 2 Cargo 6,859 11-20N, 109-03E Sunk 15 Vessels 76,687 USS Jallao Aug 11 1945 TEIHOKU MARU Passenger-Cargo 5,795 38-03N, 133-13E Sunk USS Kete Mar 10 1945 KEIZAN MARU Cargo 2,116 29-31N, 127-55E Sunk Mar 10 1945 SANKA MARU Cargo 2,495 29-31N, 127-55E Sunk Mar 10 1945 DOKAN MARU Cargo 2,270 29-31N, 127-55E Sunk 3 Vessels 6,881
USS Kingfish Date Name of Vessel Type of Vessel Tonnage Location Assessment Oct 1 1942 YOMEI MARU Cargo 2,860 33-35N, 135-15E Sunk Oct 23 1942 SEIKYO MARU Ex-Gunboat 2,608 33-45N, 135-25E Sunk Dec 7 1942 HINO MARU NO 3 Passenger-Cargo 4,391 23-59N, 138-43E Sunk Dec 28 1942 CHOYO MARU Cargo 5,388 24-46N, 120-40E Sunk Mar 19 1943 Takachiho MARU Transport 8,154 26-00N, 122-18E Sunk Oct 20 1943 SANA MARU Cargo 3,365 12-36N, 109-30E Sunk Jan 3 1944 RYUEI MARU Tanker 5,144 8-06N, 112-30E Sunk Jan 3 1944 BOKUEI MARU Tanker 5,135 6-58N, 112-02E Sunk Jan 7 1944 FUSHIMI MARU NO 3 Tanker 4,292 9-27N, 117-36E Sunk Oct 24 1944 IKUTAGAWA MARU Cargo 2,220 27-08N, 143-13E Sunk Oct 27 1944 TOKAI MARU NO 4 Cargo 537 25-22N, 141-31E Sunk Oct 27 1944 TRANPORT NO 138 Landing Craft 1,000 e 25-22N, 141-31E Sunk Jan 3 1945 YAEI MARU Cargo 1,941 30-29N, 142-03E Sunk Jan 3 1945 SHIERAZONO MARU Passenger-Cargo 1,831 30-29N, 1442-03E Sunk 14 Vessels 48,866 USS Lagarto Feb 24 1945 TATSUMOMO MARU Cargo 880 e 32-40N, 132-33E Sunk Feb 24 1945 RO 49 Submarine 965 32-40N, 132-33E Sunk Jun 30 1945 HOKUSHIN MARU Cargo 5,819 15-00N, 115-00E Sunk 3 Vessels 7,664 USS Lapon Oct 18 1943 TAICHU MARU Cargo 1,906 34-00N, 136-24E Sunk Mar 8 1944 TOYOKUNI MARU Cargo 5,792 19-23N, 116-13E Sunk Mar 9 1944 NICHIREI MARU Cargo 5,396 19-47N, 116-13E Sunk Mar 18 1944 HOKUROKU MARU Passenger-Cargo 8,359 19-22N, 116-52E Sunk May 24 1944 WALES MARU Passenger-Cargo 6,586 7-16N, 109-04E Sunk May 24 1944 BIZEN MARU Cargo 4,667 7-25N, 108-43E Sunk Jul 18 1944 KYODO MARU NO 36 Passenger-Cargo 1,499 8-22N, 116-40E Sunk Jul 31 1944 TENSHIN MARU Tanker 5,061 8-22N, 116-40E Sunk Sep 22 1944 SHUN YUAN Cargo 1,610 15-22N, 119-17E Sunk Sep 27 1944 HOKKI MARU Tanker 5,599 15-45N, 117-48E Sunk Oct 10 1944 EJIRI MARU Cargo 6,968 16-10N, 119-44E Sunk 11 Vessels 53,443
USS Lizardfish Date Name of Vessel Type of Vessel Tonnage Location Assessment Jul 5 1945 SUBMARINE CHASER NO 37 Submarine Chaser 100 8-10S, 114-50E Sunk USS Mingo Jul 7 1944 TAMANAMI Destroyer 2,100 13-55N, 118-30E Sunk Nov 25 1944 MANILA MARU Passenger-Cargo 9,486 5-30N, 113-21E Sunk 2 Vessels 11,586 USS Muskallunge Aug 21 1944 DURBAN MARU Passenger-Cargo 7,163 11-43N, 109-17E Sunk USS Narwhal Mar 4 1942 TAKI MARU Cargo 1,244 28-37N, 129-10E Sunk Jul 24 1942 UNKNOWN MARU Cargo 1,500 e 45-05N, 147-27E Sunk Aug 1 1942 MEIWA MARU Cargo 2,921 41-12N, 141-36E Sunk Aug 8 1942 BIFUKU MARU Passenger-Cargo 2,559 41-14N, 141-32E Sunk Sep 11 1943 HOKUSHO MARU Cargo 4,211 00-28S, 166-52E Sunk Dec 5 1943 HIMENO MARU Cargo 834 9-10N, 124-30E Sunk Mar 3 1944 KARATSU River Gunboat 560 3-52N, 123-23E Sunk 7 Vessels 13,829 USS Nautilus Jun 25 1942 YAMAKAZE Destroyer 1,580 34-34N, 140-26E Sunk Sep 28 1942 TAMON MARU NO 6 Cargo 4,994 40-35N, 141-50E Sunk Oct 1 1942 TOSSEI MARU Cargo 2,432 41-20N, 141-35E Sunk Oct 24 1942 KENUN MARU Cargo 4,643 41-24N, 141-50E Sunk Jan 9 1943 YOSHINOGAWA MARU Cargo 1,430 6-13S, 156-00E Sunk Mar 6 1944 AMERICA MARU Transport 6,070 21-50N, 143-54E Sunk 6 Vessels 21,149
USS Paddle Date Name of Vessel Type of Vessel Tonnage Location Assessment Aug 23 1943 ATAKA MARU Passenger-Cargo 5,248 34-37N, 137-53E Sunk Apr 16 1944 MITO MARU Passenger-Cargo 7,061 2-02S, 127-20E Sunk Apr 16 1944 HINO MARU NO 1 Cargo 2,671 2-02S, 127-20E Sunk Jul 6 1944 HOKAZE Destroyer 1,300 3-24N, 125-28E Sunk Sep 7 1944 SHINYO MARU Cargo 2,518 8-11N, 122-40E Sunk 5 Vessels 18,798 USS Pampanito Sep 12 1944 KACHIDOKI MARU Transport 10,509 19-18N, 111-53E Sunk Sep 12 1944 ZUIHO MARU Tanker 5,135 19-18N, 111-53E Sunk Nov 19 1944 SHINKO MARU NO 1 Cargo 1,200 19-00N, 111-51E Sunk Feb 6 1945 ENGEN MARU Cargo 6,968 6-29N, 106-11E Sunk Feb 8 1945 EIFUKU MARU Passenger-Cargo 3,520 7-04N, 104-46E Sunk 5 Vessels 27,332 USS Parche May 4 1944 TAIYOKU MARU Cargo 5,244 20-48N, 118-03E Sunk May 4 1944 SHORYU MARU Cargo 6,475 20-48N, 118-03E Sunk Jul 31 1944 KOEI MARU Tanker 10,238 19-10N, 120-58E Sunk Jul 31 1944 MANKO MARU Passenger-Cargo 4,471 19-10N, 120-58E Sunk Feb 7 1945 OKINOYAMA MARU Cargo 984 29-09N, 129-45E Sunk Apr 9 1945 MINESWEEPER NO 3 Minesweeper 615 39-06N, 141-57E Sunk Jun 21 1945 HIZEN MARU Cargo 946 41-19N, 141-28E Sunk Jun 26 1945 KAMITSU MARU Ex-Gunboat 2,723 39-25N, 142-04E Sunk 8 Vessels 31,696 USS Pargo Nov 29 1943 MANJU MARU Cargo 5,877 18-23N, 140-18E Sunk Nov 30 1943 SHOKO MARU Cargo 1,933 14-31N, 140-18E Sunk May 4 1944 EIRYU MARU Ex-Net Tender 758 7-04N, 129-18E Sunk Jun 28 1944 YAMAGIKU MARU Cargo 5,236 6-50N, 122-41E Sunk Sep 10 1944 HINOKI MARU Ex-Net Tender 599 6-27S, 116-48E Sunk Sep 26 1944 AOTAKA Minelayer 1,600 7-00N, 116-00E Sunk
USS Pargo Date Name of Vessel Type of Vessel Tonnage Location Assessment Nov 26 1944 YUHO MARU Tanker 5,226 4-55N, 114-06E Sunk Feb 20 1945 NOKAZE Destroyer 1,300 12-48N, 109-38E Sunk Aug 8 1945 RASHIN MARU Passenger-Cargo 5,454 21-23N, 131-25E Sunk 9 Vessels 27,983 USS Permit Mar 8 1943 HISASHIMA MARU Cargo 2,742 41-16N, 142-27E Sunk Jul 6 1943 BANSHU MARU NO 33 Cargo 787 43-35N, 140-21E Sunk Jul 7 1943 SHOWA MARU Passenger-Cargo 2,212 43-14N, 139-53E Sunk 3 Vessels 5,741 USS Peto Oct 1 19434 TONEI MARU Passenger-Cargo 4,930 4-01N, 143-47E Sunk Oct 1 1943 KINKASAN MARU Cargo 4,980 4-01N, 143-47E Sunk Dec 1 1943 KONEI MARU Cargo 2,345 1-02N, 146-42E Sunk Mar 4 1944 KAYO MARU Passenger-Cargo 4,368 1-28S, 138-40E Sunk Nov 12 1944 TATSUAKIU MARU Cargo 2,766 31-18N, 125-30E Sunk Nov 18 1944 AISAKASAN MARU Cargo 6,923 33-50N, 124-44E Sunk Nov 18 1944 CHINKAI MARU Cargo 2,827 33-39N, 124-26E Sunk 7 Vessels 29,139 USS Pickerel Jan 10 1942 KANKO MARU Ex-Gunboat 2,929 6-12N, 125-55E Sunk Feb 15 1943 TATEYAMA MARU Cargo 1,990 39-18N, 142-08E Sunk Apr 3 1943 SUBMARINE CHASER NO 13 Submarine Chaser 440 40-00N, 142-00E Sunk Apr 7 1943 FUKUEI MARU Cargo 1,113 41-00N, 142-00E Sunk 4 Vessels 6,472 USS Picuda Mar 2 1944 SHINKYO MASRU Ex-Gunboat 2,672 6-25N, 148-31E Sunk Mar 20 1944 HOKO MARU Cargo 1,504 10-06N, 138-10E Sunk Mar 30 1944 ATLANTIC MARU Cargo 5,873 12-15N, 145-42E Sunk
USS Picuda Date Name of Vessel Type of Vessel Tonnage Location Assessment May 22 1944 HASHIDATE Gunboat 1,200 21-20N, 117-10E Sunk Aug 25 1944 YUNAGI Destroyer 1,270 18-46N, 120-46E Sunk Aug 25 1944 KOTOKU MARU Cargo 1,943 18-46N, 120-46E Sunk Sep 16 1944 TOKUSHIMA MARU Passenger-Cargo 5,975 21-15N, 121-29E Sunk Sep 21 1944 AWAJI MARU Cargo 1,948 18-43N, 120-52E Sunk Nov 17 1944 MAYASAN MARU Passenger-Cargo 9,433 33-16N, 124-43E Sunk Nov 23 1944 SHUYO MARU Cargo 6,933 34-15N, 128-58E Sunk Nov 23 1944 FUKUJU MARU Passenger-Cargo 5,291 34-19N, 128-05E Sunk Jan 29 1945 CLYDE MARU Passenger-Cargo 5,497 25-33N, 120-54E Sunk 12 Vessels 49,539 USS Pike Aug 5 1943 SHOJU MARU Passenger-Cargo 2,022 24-37N, 154-45E Sunk USS Pintado Jun 1 1944 TOHO MARU Cargo 4,716 18-13N, 141-19E Sunk Jun 6 1944 KAASHIMASAN MARU Cargo 2,825 16-41N, 142-43E Sunk Jun 6 1944 HAVRE MARU Cargo 5,652 16-41N, 142-43E Sunk Aug 6 1944 SHONAN MARU Cargo 5,401 30-53N, 129-47E Sunk Aug 22 1944 TONAN MARU NO 2 Tanker 19,262 29-44N, 125-22E Sunk Nov 3 1944 AKIKAZE Destroyer 1,300 16-48N, 117-17E Sunk Dec 13 1944 TRANSPORT NO 12 Landing Craft 1,900 e 20-34N, 118-45E Sunk Dec 13 1944 TRANSPORT NO 104 Landing Craft 1,900 e 20-34N, 118-45E Sunk 8 Vessels 42,956 USS Pipefish Sep 12 1944 HAKUTETTSU MARU NO 7 Cargo 1,018 33-31N, 135-57E Sunk Dec 3 1944 COAST DEF VESSEL NO 64 Frigate 800 e 18-36N, 111-54E Sunk 2 Vessels 1,818 USS Piranha Jul 12 1944 NIGHIRAN MARU Passenger-Cargo 6,504 18-33N, 122-53E Sunk Jul 16 1944 SEASTTLE MARU Passenger-Cargo 5,773 19-26N, 120-18E Sunk 2 Vessels 12,277
USS Plaice Date Name of Vessel Type of Vessel Tonnage Location Assessment Jun 30 1944 HYAKUFUKU MARU Ex-Gunboat 986 28-22N, 141-17E Sunk Jul 5 1944 KOGI MARU Ex-Net Tender 857 27-43N, 141-02E Sunk Jul 18 1944 SUBMARINE CHASER NO 50 Submarine Chaser 300 E 29-22N, 139-14E Sunk SEP 27 1944 COAST DEF VESSEL NO 10 Frigate 800 E 29-26N, 128-50E Sunk 4 Vessels 2,943 USS Plunger Jan 18 1942 EIZAN MARU Cargo 4,702 33-30N, 135-00E Sunk Jun 30 1942 UNKKAI MARU NO 5 Cargo 3,282 30-04N, 122-54E Sunk Jul 2 1942 UNYO MARU NO 3 Cargo 2,997 30-30N, 120-25E Sunk Mar 12 1943 TAIHOSAN MARU Ex-Water Carrier 1,805 7-15N, 159-10E Sunk May 10 1943 TATSUTAKE MARU Passenger-Cargo 7,068 14-29N, 149-00E Sunk May 10 1943 KINAI MARU Passenger-Cargo 8,360 14-29N, 149-00E Sunk Jul 12 1943 NIITAKA MARU Passenger-Cargo 2,478 43-02N, 140-00E Sunk Aug 20 1943 SEITAI MARU Cargo 3,404 42-15N, 139-58E Sunk Aug 22 1943 RYOKAI MARU Cargo 4,655 42-40N, 139-48E Sunk Feb 2 1944 TOYO MARU NO 5 Cargo 2,193 33-32N, 135-58E Sunk Feb 2 1944 TOYO MARU NO 8 Cargo 2,191 33-32N, 135-58E Sunk Feb 23 1944 KIMISHIMA MARU Cargo 5,193 30-30N, 140-20E Sunk 12 Vessels 48,328 USS Pogy May 1 1943 KEISHIN MARU Ex-Gunboat 1,434 37-04N, 141-06E Sunk May 26 1943 TAINAN MARU Cargo 1,989 37-03N, 141-09E Sunk Aug 1 1943 MOGAMIGAWA MARU Aircraft Ferry 7,497 11-16N, 153-34E Sunk Sep 30 1943 MAEBASHI MARU Passenger-Cargo 7,005 6-01N, 139-08E Sunk Dec 7 1943 SOYO MARU Submarine Tender 6,081 14-04N, 152-09E Sunk Dec 13 1943 FUKKAI MARU Passenger-Cargo 3,829 7-07N, 134-31E Sunk Feb 10 1944 MINEKAZE Destroyer 1,300 23-12N, 121-30E Sunk Feb 10 1944 MALTA MARU Passenger-Cargo 5,500 23-12N, 121-30E Sunk Feb 20 1944 TAIJIN MARU Cargo 5,154 24-12N, 123-20E Sunk Feb 20 1944 NANYO MARU Cargo 3,610 24-28N, 123-31E Sunk Feb 23 1944 HOREI MARU Cargo 5,588 26-22N, 126-15E Sunk Apr 28 1944 I 183 Submarine 1,630 32-07N, 133-03E Sunk May 5 1944 SHIRANE MARU Cargo 2,825 33-31N, 135-28E Sunk May 13 1944 ANBO MARU Cargo 4,523 34-31N, 138-33E Sunk
USS Pogy Date Name of Vessel Type of Vessel Tonnage Location Assessment Jul 27 1945 CHIKUZEN MARU Passenger-Cargo 2,448 37-00N, 134--02E Sunk Aug 5 1945 KOTOHIRASAN MARU Cargo 2,220 39-52N, 38-52E Sunk 16 Vessels 62,633 USS Pollack Jan 7 1942 UNKAI MARU NO 1 Cargo 2,225 34-27N, 138-59E Sunk Jan 9 1942 TEIAN MARU Cargo 5,387 35-00N, 140-36E Sunk Mar 11 1942 FUKUSHU MARU Cargo 1,454 30-53N, 126-20E Sunk May 18 1943 TERUSHIMA MARU Ex-Gunboat 3,110 8-45N, 170-30E Sunk May 20 1943 BANGKOK MARU Ex-Light Cruiser 5,350 5-47N, 169-48E Sunk Aug 27 1943 TAIFUKU MARU Passenger-Cargo 3,520 32-27N, 132-24E Sunk Sep 3 1943 TAGONOURA MARU Cargo 3,521 34-10N, 140-12E Sunk Mar 20 1944 HAKUYO MARU Cargo 1,327 30-53N, 140-42E Sunk Mar 25 1944 SUBMARINE CHASER NO 54 Submarine Chaser 300 28-34N, 142-14E Sunk Apr 3 1944 TOSEI MARU Passenger-Cargo 2,814 30-00N, 139-44E Sunk May 22 1944 ASANAGI Destroyer 1,270 28-20N, 138-57E Sunk 11 Vessels 30,278 USS Pomfret Oct 2 1944 TSUYAMA MARU Passenger-Cargo 6,962 21-00N, 121-46E Sunk Nov 2 1944 ATLAS MARU Passenger-Cargo 7,347 20-20N, 121-30E Sunk Nov 2 1944 HAMBURG MARU Passenger-Cargo 5,271 20-20N, 121-30E Sunk Nov 25 1944 SHOHO MAMRU Cargo 1,356 20-18N, 121-34E Sunk 4 Vessels 20,936 USS Pompano May 25 1942 TOKYO MARU Tanker 902 27-03N, 127-03E Sunk May 30 1942 ATSUTA MARU Transport 7,983 26-07N, 129-06E Sunk Aug 12 1942 UNKNOWN MARU Cargo 4,000 e 33-02N, 136-00E Sunk Sep 3 1943 AKAMA MARU Cargo 5,600 41-00N, 141-30E Sunk Sep 25 1943 TAIKO MARU Cargo 2,958 41-30N, 139-00E Sunk 5 Vessels 21,443
USS Pompon Date Name of Vessel Type of Vessel Tonnage Location Assessment Jul 25 1943 THAMES MARU Cargo 5,871 2-40N, 148-26E Sunk May 30 1944 SHIGA MARU Cargo 742 33-15N, 134-11E Sunk Aug 12 1944 MAYACHI MARU Cargo 2,159 50-28N, 144-09E Sunk 3 Vessels 8,772 USS Porpoise Jan 1 1943 RENZAN MARU Cargo 4,999 39-11N, 141-44E Sunk Apr 4 1943 KOA MARU Cargo 2,024 13-11N, 161-57E Sunk Jul 19 1943 MIKAGE MARU NO 20 Passenger-Cargo 2,718 18-34N, 166-20E Sunk 3 Vessels 9,741 USS Puffer Dec 20 1943 FUYO Old Destroyer 820 14-44N, 119-55E Sunk Jan 1 1944 RYUYO MARU Cargo 6,707 8-24N, 122-56E Sunk Feb 22 1944 TEIKO MARU Transport 15,105 3-03N, 109-16E Sunk May 18 1944 SHINRYU MARU Cargo 3,181 7-36S, 113-12E Sunk Jun 5 1944 ASHIZURI Tanker 2,166 e 6-32N, 120-40E Sunk Jun 5 1944 TAKASAKI Tanker 2,500 e 6-32N, 120-40E Sunk Aug 12 1944 TEIKON MARU Tanker 5,113 13-17N, 120-07E Sunk Jan 10 1945 COAST DEF VESSEL NO 42 Frigate 800 e 27-01N, 126-34E Sunk 8 Vessels 36,392 USS Queenfish Aug 31 1944 CHIYODA MARU Tanker 4,700 21-21N, 121-06E Sunk Sep 9 1944 TOYOOKA MARU Passenger-Cargo 7,097 19-45N, 120-56E Sunk Sep 9 1944 MANSHU MARU Transport 3,054 19-45N, 120-56E Sunk Nov 8 1944 KEIJO MARU Cargo 1,051 31-09N, 129-38E Sunk Nov 8 1944 HAKKO MARU Cargo 1,948 31-09N, 129-38E Sunk Nov 9 1944 CHOJUSAN MARU Ex-Gunboat 2,131 31-17N, 129-10E Sunk Nov 15 1944 AKIITSU MARU Aircraft Ferry 9,186 33-15N, 128-19E Sunk Apr 1 1945 AWA MARU Passenger-Cargo 11,6000 25-25N, 120-07E Sunk 8 Vessels 40,767
USS Rasher Date Name of Vessel Type of Vessel Tonnage Location Assessment Oct 9 1943 KOGANE MARU Passenger-Cargo 3,132 3-36S, 127-44E Sunk Oct 13 1943 KENKOKU MARU Cargo 3,127 3-47S, 127-41E Sunk Oct 31 1943 KORYU MARU Tanker 589 1-25N, 120-46E Sunk Nov 8 1943 TANGO MARU Tanker 2,046 00-22N, 119-44E Sunk Jan 4 1944 KIYO MARU Tanker 7,251 5-46N, 108-36E Sunk Feb 25 1944 TANGO MARU Cargo 6,200 7-46S, 115-09E Sunk Feb 25 1944 RYUSEI MARU Passenger-Cargo 4,797 7-56S, 115-14E Sunk Mar 3 1944 NITTAI MARU Cafgo 6,484 3-17N, 123-55E Sunk Mar 27 1944 NICHINAN MARU Cargo 2,750 7-31S, 115-57E Sunk May 11 1944 CHOI MARU Cargo 1,074 3-30S, 126-06E Sunk May 29 1944 ANSHU MARU Covernted Gunboat 2,601 3-40S, 126-58E Sunk Jun 8 1944 SHIOYA Tanker 4,000 e 3-04N, 124-03E Sunk Jun 14 1944 KOAN MARU Cargo 3,183 4-31N, 122-25E Sunk Aug 6 1944 SHIROGANESAN MARU Cargo 4,739 14-14N, 117-16E Sunk Aug 18 1944 EISHIN MARU Cargo 542 18-16N, 120-20E Sunk Aug 18 1944 TEIYO MARU Tanker 9,849 18-09N, 119-56E Sunk Aug 18 1944 OTAKA Escort Aircraft Carrier 20,000 18-16N, 120-20E Sunk Aug 19 1944 TEIA MARU Transport 17,537 18-09N, 119-56E Sunk 18 Vessels 99,901 USS Raton Nov 26 1943 ONOE MARU Cargo 6,667 00-40N, 148-14E Sunk Nov 28 1943 HOKKO MARU Cargo 5,347 1-40N, 141-45E Sunk Nov 28 1943 YURI MARU Cargo 6,787 1-40N, 141-45E Sunk Dec 24 1943 HEIWA MARU Cargo 5,578 2-45N, 127-41E Sunk May 24 1944 IKI Frigate 860 1-17N, 107-50E Sunk Jun 6 1944 COAST DEF VESSEL NO 15 Frigate 800 e 8-58N, 109-30E Sunk Oct 18 1944 SHIRANESAN MARU Cargo 4,739 12-37N, 118-46E Sunk Oct 18 1944 TAIKAI MARU Passenger-Cargo 3,812 12-37N, 118-46E Sunk Nov 14 1944 UNKAI MARU NO 5 Tanker 2,841 17-57N, 117-45E Sunk Nov 14 1944 KURASAKI Miscellaneous Ausiliary 989 17-27N, 117-43E Sunk May 2 1945 TORYU MARU Cargo 1,992 37-22N, 123-43E Sunk May 12 1945 REKIZAN MARU Cargo 1,311 37-23N, 123-42E Sunk May 16 1945 EIJU MARU Cargo 2,455 37-39N, 124-11E Sunk 13 Vessels 44,178
USS Ray Date Name of Vessel Type of Vessel Tonnage Location Assessment Nov 26 1943 NIKKAI MARU Converted Gunboat 2,562 4-00N, 147-50E Sunk Dec 27 1943 KYOKO MARU Tanker 5,792 5-00S, 121-22E Sunk Jan 1 1944 OKUYO MARU Converted Gunboat 2,904 3-51S, 128-04E Sunk May 22 1944 TENPEI MARU Passenger-Cargo 6,094 5-34N, 127-37E Sunk Jul 18 1944 JANBI MARU Tanker 5,244 5-21S, 112-30E Sunk Aug 4 1944 KOSHU MARU Cargo 2,612 3-59S, 117-54E Sunk Aug 14 1944 ZUISHO MARU Passenger-Cargo 5,289 3-52N, 112-56E Sunk Aug 18 1944 NANSEI MARU Tanker 5,878 8-48N, 116-58E Sunk Aug 21 1944 TAKETOYO MARU Passenger-Cargo 6,965 13-23N, 120-19E Sunk Oct 12 1944 TOKO MARU Passenger-Cargo 4,180 13-31N, 120-19E Sunk Nov 1 1944 HORAI MARU NO 7 Cargo 865 13-02N, 120-17E Sunk Nov 14 1944 COAST DEF VESSEL NO 7 Frigate 800 e 17-46N, 117-57E Sunk 12 Vessels 49,185 USS Razorback Dec 30 1944 KUURETAKE Old Destroyer 820 21-00N, 121-24E Sunk USS Redfin Apr 11 1944 AKIGUMO Destroyer 1,900 6-43N, 122-23E Sunk Apr 15 1944 SHINYU MARU Passenger-Cargo 4,621 6-41N, 123-40E Sunk Apr 16 1944 YAMAGATA MARU Passenger-Cargo 3,807 7-04N, 123-27E Sunk Jun 11 1944 ASANAGI MARU Tanker 5,142 6-20N, 120-47E Sunk Jun 24 1944 ASO MARU Passenger-Cargo 3,028 9-57N, 125-07E Sunk Nov 8 1944 NICHINAN MARU NO 2 Tanker 5,226 13-46N, 116-53E Sunk 6 Vessels 23,724 USS Redfish Aug 25 1944 BATOPAHA MARU Cargo 5,953 18-33N, 120-34E Sunk Sep 16 1944 OGURA MARU NO 2 Tanker 7,311 21-23N, 121-17E Sunk Sep 21 1944 MIZUHO MARU Transport 8,506 18-35N, 120-39E Sunk Nov 23 1944 HOZAN MARU Transport 2,345 24-26N, 122-46E Sunk Dec 19 1944 UNRYU Aircraft Carrier 18,500 28-59N, 124-03E Sunk 5 Vessels 42,615
USS Rock Date Name of Vessel Type of Vessel Tonnage Location Assessment Oct 26 1944 TAKASAGO MARU NO 7 Tanker 834 e 10-18N, 117-47E Sunk USS Ronquil Aug 24 1944 YOSHIDA MARU NO 3 Cargo 4,646 255-13N, 121-49E Sunk Aug 24 1944 FUKUREI MARU Cargo 5,969 25-13N, 121-49E Sunk 2 Vessels 10,614 USS Runner Jun 11 1943 SEINAN MARU Cargo 1,338 41-00N, 141-30E Sunk Jun 26 1943 SHINRYU MARU Passenger-Cargo 4,936 48-06N, 153-15E Sunk 2 Vessels 6,274 USS Runner II Jul 10 1945 MINESWEEPER NO 27 Minesweeper 630 e 39-20N, 12-07E Sunk USS S-28 Sep 19 1943 KATSURA MARU NO 2 Converted Gunboat 1,368 49-05N, 151-45E Sunk USS S-30 Jun 11 1943 JINBU MARU Cargo 5,228 50-23N, 155-36E Sunk USS S-31 Oct 26 1942 KEIZAN MARU Cargo 2,864 50-09N, 155-37E Sunk USS S-35 Jul 2 1943 BANSHU MARU NO 7 Cargo 5,430 52-30N, 156-12E Sunk USS S-37 Feb 8 1942 NATSUSHIO Destroyer 1,900 5-10S, 119-24E Sunk Jul 8 1942 TENZAN MARU Passenger-Cargo 2,776 4-00S, 151-50E Sunk 2 Vessels 4,676
USS S-38 Date Name of Vessel Type of Vessel Tonnage Location Assessment Dec 22 1941 HAYO MARU Cargo 5,445 16-37N, 120-17E Sunk Aug 8 1942 MEIYO MARU Transport 5,268 4-52S, 152-43E Sunk 2 Vessels 11,073 USS S-39 Mar 4 1942 ERIMO Tanker 6,500 4-19S, 108-25E Sunk USS S-41 May 28 1943 SEIKI MARU Cargo 1,036 50-38N, 155-15E Sunk USS S-42 May 11 1942 OKINOSHIMA Minelayer 4,400 5-06S, 153-48E Sunk USS S-44 May 12 1942 SHOEI MARU Converted Salvage Vessel 5,644 4-51S, 152-54E Sunk Jun 21 1942 KEIJO MARU Converted Gunboat 2,626 9-00S, 160-00E Sunk Aug 10 1942 KAKO Heavy Cruiser 8,800 2-15S, 152-15E Sunk 3 Vessels 17,070 USS Sailfish Mar 2 1942 KAMOGAWA MARU Aircraft Ferry 6,440 8-06S, 115-57E Sunk Jun 15 1943 SHINJU MARU Cargo 3,617 39-13N, 142-00E Sunk Jun 25 1943 IBURI MARU Passenger-Cargo 3,291 39-34N, 142-06E Sunk Dec 4 1943 CHUYO Escortt Aircraft Carrier 20,000 32-37N, 143-39E Sunk Dec 13 1943 TOTAI MARU Cargo 3,195 30-55N, 132-33E Sunk Dec 21 1943 UYO MARU Cargo 6,476 32-38N, 132-04E Sunk Aug 24 1944 TOAN MARU Cargo 2,110 21-29N, 121-18E Sunk 7 Vessels 45,029 USS Salmon May 25 1942 ASAHI Repair Ship 11,441 10-00N, 110-00E Sunk May 28 1942 GANGES MARU Passenger-Cargo 4,382 9-00N, 111-00E Sunk
USS Salmon Date Name of Vessel Type of Vessel Tonnage Location Assessment Nov 17 1942 OREGON MARU Converted Salvage Vessel 5,873 14-46N, 119-44E Sunk Aug 10 1943 WAKANOURA MARU Passenger-Cargo 2,411 46-58N, 143-30E Sunk 4 Vessels 24,107 USS Sandlance Feb 28 1944 KAIKO MARU Cargo 3,548 50-02N, 155-30E Sunk Mar 3 1944 AKASHISAN MARU Cargo 4,541 42-52N, 49-16E Sunk Mar 13 1944 TATSUTA Light Cruiser 3,300 32-58N, 138-52E Sunk Mar 13 1944 KOKUYO MARU Cargo 4,667 32-58N, 138-52E Sunk May 3 1944 KENAN MARU Cargo 3,129 15-29N, 145-42E Sunk May 11 1944 MITAKESAN MARU Passenger-Cargo 4,441 14-58N, 145-26E Sunk May 14 1944 KOHO MARU Cargo 4,291 13-42N, 144-43E Sunk May 17 1944 TAOKOKU MARU Cargo 2,633 14-57N, 144-47E Sunk May 17 1944 FUKKO MARU Passenger-Cargo 3,834 14-55N, 142-30E Sunk Jul 14 1944 TAIKO MARU Converted Gunboat 2,984 6-00S, 121-30E Sunk 10 Vessels 37,368 USS Sargo Sep 25 1942 TEIBO MARU Cargo 4,472 10-31N, 109-31E Sunk Jun 13 1943 KONAN MARU Passenger-Cargo 5,226 6-05N, 138-25E Sunk Nov 9 1943 TAGA MARU Cargo 2,868 21-38N, 131-19E Sunk Nov 11 1943 KOSEI MARU Passenger-Cargo 3,551 27-36N, 130-32E Sunk Feb 17 1944 NICHIRO MARU Passenger-Cargo 6,534 8-50N, 135-57E Sunk Feb 29 1944 UCHIDE MARU Passenger-Cargo 5,275 8-57N, 132-52E Sunk Apr 26 1944 WAZAN MARU Cargo 4,851 33-30N, 135-27E Sunk 7 Vessels 32,777 USS Saury Sep 11 1942 KANTO MARU Aircraft Ferry 8,606 3-16S, 118-29E Sunk May 26 1943 KAGI MARU Transport 2,343 28-45N, 129-37E Sunk May 28 1943 AKATSUKI MARU Tanker 10,216 27-32N, 126-08E Sunk May 30 1943 TAKAMISAN MARU Cargo 1,992 30-07N, 124-32E Sunk May 30 1943 SHOKO MARU Cargo 5,385 30-07N, 124-32E Sunk 5 Vessels 28,542
USS Sawfish Date Name of Vessel Type of Vessel Tonnage Location Assessment May 5 1943 HAKKAI MARU Cargo 2,921 34-11N, 137-41E Sunk Jul 27 1943 HIRASHIMA Coatal Minelayer 720 32-32N, 127-41E Sunk Dec 8 1943 SANSEI MARU Passenger-Cargo 3,267 25-20N, 141-46E Sunk Jul 26 1944 I 29 Submarine 2,212 20-10N, 121-50E Sunk Oct 9 1944 TACHIBANA MARU Tanker 6,521 19-33N, 116-38E Sunk Oct 23 1944 KIMIKAWA MARU Converted Seaplane Tender 6,863 18-58N, 118-31E Sunk 6 Vessels 22,504 USS Scabbardfish Nov 16 1944 KISARAGI MARU Cargo 875 28-56N, 141-59E Sunk Nov 28 1944 I 365 Submarine 1,470 34-44N, 141-01E Sunk 2 Vessels 2,345 USS Scamp May 28 1943 KAMIKAWA MARU Converted Seaplane Tender 6,853 1-36S, 150-24E Sunk Jul 27 1943 I 24 Submarine 2,180 2-50S, 149-01E Sunk Sep 18 1943 KANSAI MARU Passenger-Cargo 8,614 00-25N, 146-21E Sunk Nov 10 1943 TOKYO MARU Passenger-Cargo 6,486 3-36N, 150-34E Sunk Jan 14 19444 NIPPON MARU Tanker 9,975 5-02N, 140-43E Sunk 5 Vessels 34,108 USS Scorpion Apr 20 1943 MEIJI MARU NO 1 Converted Gunboat 1,934 37-10N, 141-25E Sunk Apr 27 1943 YUZAN MARU Passenger-Cargo 6,380 38-08N, 143-03E Sunk Jul 3 1943 ANZAN MARU Cargo 3,890 38-08N, 124-20E Sunk Jul 3 1943 KOKURYU MARU Passenger-Cargo 6,112 38-08N, 124-20E Sunk 4 Vessels 18,316 USS Sculpin Oct 7 1942 NAMINOUE MARU Transport 4,731 3-51S, 151-21E Sunk Oct 14 1942 SUMIYOSHI MARU Cargo 1,921 3-20S, 150-03E Sunk Aug 9 1943 SEKKO MARU Passenger-Cargo 3,183 24-51N, 122-12E Sunk 3 Vessels 9,835
USS Sea Devil Date Name of Vessel Type of Vessel Tonnage Location Assessment Sep 15 1944 RO 42 Submarine 965 34-30N, 145-23E Sunk Dec 2 1944 AKIGAWA MARU Cargo 6.859 30-51N, 128-45E Sunk Dec 2 1944 HAWAII MARU Passenger-Cargo 9,467 30-51N, 128-45E Sunk Apr 2 1945 TAIJO MARU Cargo 6,866 34-18N, 124-04E Sunk Apr 2 1945 EDOGAWA MARU Cargo 1,972 34-18N, 124-04E Sunk Apr 2 1945 NISSHIN MARU Cargo 1,179 34-18N, 124-04E Sunk Jun 14 1945 WAKAMIYASAN MARU Cargo 2,211 37-38N, 123-34E Sunk 7 Vessels 29,519 USS Sea Dog Oct 22 1944 TOMITSU MARU Converted Gunboat 2,933 29-20N, 129-45E Sunk Oct 22 1944 MUROTO Supply Ship 4,500 e 29-20N, 129-45E Sunk Apr 16 1945 TOKO MARU Cargo 6,850 33-24N, 139-31E Sunk Jun 9 1945 SAGAWA MARU Cargo 1,186 38-13N, 138-43E Sunk Jun 9 1945 SHOYO MARU Cargo 2,211 38-11N, 138-45E Sunk Jun 11 1945 KOFUKU MARU Cargo 753 40-28N, 139-47E Sunk Jun 12 1945 SHINSEN MARU Cargo 880 40-09N, 139-43E Sunk Jun 15 1945 KOAN MARU Passenger-Cargo 884 39-53N, 139-40E Sunk Jun 19 1945 KOKAI MARU Cargo 1,272 43-13N, 140-19E Sunk 9 Vessels 21,469 USS Sea Owl Apr 17 1945 RO 56 Submarine 889 19-17N, 166-35E Sunk Jun 9 1945 COAST DEF VESSEL NO 41 Frigate 800 e 34-18N, 127-18E Sunk 2 Vessels 1,689 USS Sea Robin Jan 6 1945 TARAKAN MARU Tanker 5,135 19-40N, 111-24E Sunk Mar 3 1945 SUITEN MARU Cargo 2,500 6-29S, 112-48E Sunk Mar 5 1945 SHOYU MARU Cargo 853 5-42SD, 114-02E Sunk Mar 5 1943 NAGARA MARU Cargo 856 5-41S, 114-01E Sunk Mar 5 1945 MANYO MARU Converted Gunboat 2,904 5-56S, 113-45E Sunk Jul 10 1945 SAKISHIMA MARU Cargo 1,224 33-39N, 126-40E Sunk 6 Vessels 13,472
USS Seadragon Date Name of Vessel Type of Vessel Tonnage Location Assessment Feb 2 1942 TAMAGAWA MARU Passenger-Cargo 6,441 17-16N, 119-48E Sunk Jul 12 1942 HIYAMA MARU Cargo 6,171 13-48N, 109-38E Sunk Jul 13 1942 SHINYO MARU Passenger-Cargo 4,163 13-04N, 109-30E Sunk Jul 16 1942 HAKODATE MARU Cargo 5,302 12-55N, 109-29E Sunk Oct 10 1942 SHIGURE MARU Cargo 2,445 1-01S, 117-23E Sunk Dec 20 1942 I 4 Submarine 1,995 5-02S, 152-33E Sunk Apr 23 1944 DAIJU MARU Cargo 1,279 33-35N, 135-45E Sunk Oct 24 1944 EIKO MARU Cargo 1,843 20-10N, 118-16E Sunk Oct 24 1944 TAITEN MARU Passenger-Cargo 6,442 20-31N, 118-32E Sunk Oct 24 1944 KOKURYU MARU Passenger-Cargo 7,369 20-33N, 118-34E Sunk 10 Vessels 43,450 USS Seahorse Nov 2 1943 CHIHAYA MARU Cargo 7,089 28-37N, 134-47E Sunk Nov 2 1943 UME MARU Passenger-Cargo 5,859 28-37N, 134-45E Sunk Nov 22 1943 DAISHU MARU Cargo 3,322 33-36N, 128-35E Sunk Nov 26 1943 UNKNOWN MARU Cargo 4,000 e 33-36N, 128-57E Sunk Nov 27 1943 SAN RAMON MARU Tanker 7,309 33-38N, 129-05E Sunk Jan 16 1944 NIKKO MARU Cargo 784 12-49N, 150-19E Sunk Jan 21 1944 YASUKUNI MARU Cargo 3,025 3-19N, 137-02E Sunk Jan 21 1944 IKOMA MARU Passenger-Cargo 3,156 3-19N, 137-02E Sunk Jan 30 1944 TOKO MARU Passenger-Cargo 2,747 6-10N, 138-14E Sunk Feb 1 1944 TOEI MARU Cargo 4,004 4-21N, 143-16E Sunk Apr 8 1944 ARATAMA MAARU Converted Submarine Tender 6,784 13-16N, 144-45E Sunk Apr 8 1944 KIZUGAWA MARU Cargo 1,915 13-16N, 144-45E Sunk Apr 9 1944 BISAKU MARU Cargo 4,467 15-22N, 145-06E Sunk Apr 20 1944 RO 45 Submarine 965 15-19N, 145-31E Sunk Apr 27 1944 AKIGAWA MARU Cargo 5,244 14-50N, 142-23E Sunk Jun 27 1944 MEDAN MARU Tanker 5,135 21-21N, 120-18E Sunk Jul 3 1944 NITTO MARU Cargo 2,186 19-28N, 115-41E Sunk Jul 3 1944 GYOYU MARU Passenger-Cargo 2,232 19-28N, 115-41E Sunk Jul 4 1944 KYODO MARU NO 28 Cargo 1,506 20-20N, 114-54E Sunk Oct 6 1944 COAST DEF VESSEL NO 21 Frigate 800 e 19-27N, 118-08E Sunk 20 Vessels 72,529 USS Seal Dec 23 1941 HAYATAKA MARU Cargo 856 17-35N, 120-12E Sunk May 28 1942 TATSUFUKU MARU Cargo 1,946 7-27N, 116-17E Sunk
USS Seal Date Name of Vessel Type of Vessel Tonnage Location Assessment Nov 16 1942 BOSTON MARU Transport 5,477 6-18N, 135-20E Sunk May 4 1943 SAN CLEMENTE MARU Tanker 7,354 6-54N, 134-55E Sunk Aug 24 1944 TOSEI MARU Cargo 531 42-30N, 144-05E Sunk Sep 9 1944 SHONAN MARU Passenger-Cargo 5,859 47-58N, 148-20E Sunk Oct 25 1944 HAKUYO MARU Cargo 5,742 50-17N, 150-50E Sunk 7 Vessels 27,765 USS Sealion Jun 28 1944 SANSEI MARU Cargo 2,386 34-03N, 129-00E Sunk Jul 6 1944 SETSUZAN MARU Cargo 1,922 29-59N, 122-53E Sunk Jul 11 1944 TSUKUSHI MARU NO 2 Cargo 2,417 37-24N, 124-31E Sunk Jul 11 1944 TAIAN MARU NO 2 Cargo 1,034 37-30N, 124-32E Sunk Aug 31 1944 SHIRATAKA Minelayer 1,034 21-05N, 121-26E Sunk Sep 12 1944 NANKAI MARU Passenger-Cargo 8,416 18-42N, 114-30E Sunk Sep 12 1944 RAKUYO MARU Passenger-Cargo 9,419 18-42N, 114-30E Sunk Nov 21 1944 KONGO Battleship 31,000 26-09N, 121-23E Sunk Nov 21 1944 URAKAZE Destroyer 1,900 26-09N, 121-23E Sunk Dec 20 1944 MAMIYA Supply Ship 7,000 e 17-48N, 114-09E Sunk Mar 17 1945 SAMUI Tanker 1,458 5-18N, 103-23E Sunk 11 Vessels 68,297 USS Searaven Jan 14 1943 SHIRAHA MARU Cargo 5,693 9-12N, 130-38E Sunk Nov 25 1943 TOA MARU Tanker 10,052 8-20N, 158-00E Sunk Sep 21 1944 RIZAN MARU Cargo 4,7747 49-16N, 145-29E Sunk 3 Vessels 20,492 USS Seawolf Jun 15 1942 NAMPO MARU Converted Gunboat 1,206 14-20N, 120-20E Sunk Aug 14 1942 HACHIGEN MARU Passenger-Cargo 3,113 5-07N, 119-37E Sunk Aug 25 1942 SHOWA MARU Cargo 1,349 3-55N, 118-59E Probably Sunk Nov 2 1942 GIFU MARU Cargo 2,933 6-14N, 126-07E Sunk Nov 3 1942 SAGAMI MARU Passenger-Cargo 7,189 7-02N, 125-33E Sunk Nov 8 1942 KEIKO MARU Converted Gunboat 2,929 6-22N, 126-03E Sunk Apr 15 1943 KAIHEI MARU Cargo 4,575 21-06N, 151-45E Sunk Apr 23 1943 PATROL BOAT NO 39 Old Destroyer 820 e 23-45N, 122-45E Sunk
USS Seawolf Date Name of Vessel Type of Vessel Tonnage Location Assessment Jun 20 1943 SHOJIN MARU Cargo 4,739 24-39N, 118-52E Sunk Aug 31 1943 SHOTO MARU Passenger-Cargo 4,254 28-27N, 123-03E Sunk Aug 31 1943 KOKKO MARU Cargo 5,486 28-27N, 123-03E Sunk Sep 1 1943 FUSEI MARU Passenger-Cargo 2,256 31-28N, 127-24E Sunk Oct 29 1943 WUHU MARU Cargo 3,222 22-30N, 115-25E Sunk Nov 4 1943 KAIFUKU MARU Passenger-Cargo 3,177 21-22N, 113-20E Sunk Jan 10 1944 ASUKA MARU Cargo 7,523 23-35N, 127-30E Sunk Jan 10 1944 GETSUYO MARU Cargo 6,440 27-22N, 127-31E Sunk Jan 11 1944 YAHIKO MARU Cargo 5,747 27-10N, 127-28E Sunk Jan 14 1944 YAMATSURU MARU Cargo 3,651 28-30N, 133-40E Sunk 18 Vessels 71,609 USS Segundo Mar 11 1945 SHORI MARU Cargo 3,087 32-49N, 127-55E Sunk Jun 11 1945 FUKUI MARU NO 2 Cargo 1,578 37-11N, 123-23E Sunk 2 Vessels 4,665 USS Sennet Feb 16 1945 NARIU Coastal Minelayer 720 32-10N, 135-54E Sunk Apr 19 1945 HAGANE MARU Cargo 1,901 33-35N, 135-23E Sunk Apr 28 1945 HAHTSUSHIMA Repair Ship 2,000 e 33-58N, 136-17E Sunk Jul 28 1945 UNKAI MARU NO 15 Cargo 1,208 39-53N, 139-43E Sunk Jul 28 1945 HAGIKAWA MARU Cargo 2,995 40-17N, 139-50E Sunk Jul 28 1945 HAKUEI MARU Tanker 2,863 39-53N, 139-43E Sunk Jul 30 1945 YUZAN MARU Passenger-Cargo 6,039 42-36N, 139-48E Sunk 7 Vessels 17,726 USS Shad Sep 19 1944 IOSHIMA Frigate 900 e 33-40N, 138-18E Sunk May 17 1945 CHOSAN MARU Cargo 3,939 35-41N, 126-17E Sunk Jun 7 1945 AZUSA MARU Cargo 1,370 34-00N, 126-45E Sunk 3 Vessels 6,209
USS Shark Date Name of Vessel Type of Vessel Tonnage Location Assessment Jun 2 1944 CHIYO MARU Cargo 4,700 20-53N, 140-17E Sunk Jun 4 1944 KATSUKAWA MARU Cargo 6,886 19-35N, 138-43E Sunk Jun 5 1944 TAMAHIME MARU Cargo 3,080 17-37N, 140-32E Sunk Jun 5 1944 TAKAOKA MARU Passenger-Cargo 7,006 17-37N, 140-32E Sunk 4 Vessels 21,672 USS Silversides May 17 1942 UNKNOWN MARU Cargo 4,000 e 33-28N, 135-33E Sunk Jul 28 1942 UNKNOWN MARU Transport 4,000 e 33-21N, 139-24E Sunk Aug 8 1942 NIKKEI MARU Passenger-Cargo 5,811 33-33N, 135-23E Sunk Jan 18 1943 TOEI MARU Tanker 10,023 6-21N, 150-23E Sunk Jan 20 1943 SOMEDONO OMARU Passenger-Cargo 5,154 3-52N, 153-56E Sunk Jan 20 1943 SURABAYA MARU Cargo 4,391 3-52N, 153-56E Sunk Jan 20 1943 MEIU MARU Cargo 8,230 3-52N, 153-56E Sunk Jun 11 1943 HIDE MARU Cargo 5,256 2-47N, 152-00E Sunk Oct 18 1943 TAIRIN MARU Cargo 1,915 1-00N, 143-16E Sunk Oct 24 1943 TENNAN MARU Cargo 5,407 2-05N, 144-39E Sunk Oct 24 1943 KAZAN MARU Cargo 1,893 2-05N, 144-39E Sunk Oct 24 1943 JOHORE MARU Passenger-Cargo 6,182 2-05N, 144-39E Sunk Dec 29 1943 TENPOSAN MARU Cargo 1,970 800N, 133-51E Sunk Dec 29 1943 SHICHISEI MARU Cargo 1,911 8-03N, 133-51E Sunk Dec 29 1943 RYUTO MARU Cargo 3,311 8-00N, 133-51E Sunk Mar 16 1944 KOFUKU MARU Cargo 1,920 4-28N, 135-56E Sunk May 10 1944 OKINAWA MARU Cargo 2,254 11-26N, 143-46E Sunk May 10 1944 MIKAGE MARU NO 18 Passenger-Cargo 4,319 11-26N, 143-46E Sunk May 10 1944 CHOAN MARU NO 2 Converted Gunboat 2,631 11-26N, 143-46E Sunk May 20 1944 SHOSEI MARU Converted Gunboat 998 13-32N, 144-36E Sunk May 29 1944 SHOKEN MARU Cargo 1,949 16-23N, 144-59E Sunk May 29 1944 HORAIZAN MARU Cargo 1,999 16-23N, 144-59E Sunk Jan 25 1945 MALAY MARU Cargo 4,556 31-18N, 130-08E Sunk 23 Vessels 90,080 USS Skate Dec 21 1943 TERUKAWA MARU Cargo 6,429 9-509N, 151-55E Sunk Feb 16 1944 AGANO Light Cruiser 7,000 10-11N, 151-42E Sunk Jul 7 1944 USUGUMO Destroyer 1,950 47-43N, 147-55E Sunk Jul 15 1944 MIHO MARU Cargo 515 48-07N, 148-06E Sunk Jul 16 1944 NIPPON MARU Cargo 1,942 48-12N, 148-03E Sunk
USS Skate Date Name of Vessel Type of Vessel Tonnage Location Assessment Sep 29 1944 EKISAN MARU Cargo 3,690 27-12N, 128-13E Sunk Jun 10 1945 I 122 Submarine 1,142 37-29N, 137-25E Sunk Jun 12 1945 YOZAN MARU Cargo 1,227 37-07N, 136-42E Sunk Jun 12 1945 KENJO MARU Cargo 3,142 37-07N, 136-42E Sunk Jun 12 1945 ZUIKO MARU Cargo 887 37-07N, 136-42E Sunk 10 Vessels 27,924 USS Skipjack May 6 1942 KANAN MARU Cargo 2,567 12-05N, 109-35E Sunk May 8 1942 BUJUN MARU Cargo 4,804 12-00N, 111-10E Sunk May 17 1942 TAZAN MARU Passenger-Cargo 5,478 6-22N, 108-36E Sunk Oct 14 1942 SHUNKO MARU Cargo 6,781 5-35N, 144-25E Sunk Jan 26 1944 OKITSU MARU Converted Seaplane Tender 6,666 9-22N, 157-26E Sunk Jan 26 1944 SUZUKAZE Destroyer 1,580 8-51N, 157-10E Sunk 6 Vessels 27,876 USS Snapper Sep 2 1943 MUTSURE Frigate 860 8-40N, 151-31E Sunk Nov 29 1943 KENRYU MARU Cargo 4,575 33-19N, 139-34E Sunk Oct 1 1944 SEIAN MARU Passenger-Cargo 1,9990 28-11N, 139-30E Sunk Oct 1 1944 AJIRO Coastal Minelayer 720 3 38-11N, 139-30E Sunk 4 Vessels 8,145 USS Snook May 5 1943 KINKO MARU Cargo 1,268 38-39N, 122-36E Sunk May 5 1943 DAIFUKU MARU Cargo 3,194 38-39N, 122-36E Sunk May 7 1943 TOSEI MARU Cargo 4,363 36-05N, 123-21E Sunk Jul 4 1943 KOKI MARU Cargo 5,290 28-40N, 124-10E Sunk Jul 4 1943 LIVERPOOL MARU Cargo 5,865 28-40N, 124-10E Sunk Sep 13 1943 YAMATO MARU Transport 9,656 30-06N, 123-33E Sunk Sep 22 1943 KATSURAHAMA MARU Cargo 715 39-11N, 123-20E Sunk Nov 29 1943 YAMAFUKU MARU Passenger-Cargo 4,928 18-37N, 123-30E Sunk Nov 29 1943 SHIGANOURA MARU Cargo 3,512 18-38N, 139-35E Sunk Jan 23 1944 MAGANE MARU Converted Gunboat 3,120 29-49N, 140-07E Sunk Feb 8 1944 LIMA MARU Cargo 6,989 32-18N, 129-20E Sunk Feb 14 1944 NITTOKU MARU Cargo 3,591 33-48N, 128-49E Sunk Feb 15 1944 HOSHI MARU NO 2 Cargo 875 34-23N, 128-12E Sunk
USS Snook Date Name of Vessel Type of Vessel Tonnage Location Assessment Feb 23 1944 KOYO MARU Passenger-Cargo 5,471 28-58N, 141-15E Sunk Oct 23 1944 SHINSEI MARU NO 1 Passenger-Cargo 5,863 19-44N, 118-25E Sunk Oct 24 1944 KIKUSUI MARU tanker 3,887 20-54N, 118-19E Sunk Oct 24 1944 ARISAN MARU Cargo 6,886 20-31N, 118-32E Sunk 17 Vessels 75,473 USS Spadefish Aug 19 1944 TAMATSU MARU Passenger-Cargo 9,589 18-49N, 119-47E Sunk Aug 22 1944 HAKKO MARU NO 2 Tanker 10,023 18-48N, 120-48E Sunk Sep 8 1944 NICHIMAN MARU Cargo 1,922 24-46N, 123-15E Sunk Sep 8 1944 NICHIAN MARU Cargo 6,197 24-46N, 123-15E Sunk Sep 8 1944 SHINTEN MARU Cargo 1,254 24-39N, 123-31E Sunk Sep 8 1944 SHOKEI MARU Cargo 2,557 24-39N, 123-31E Sunk Nov 14 1944 GYUKUYO MARU Cargo 5,396 31-04N, 123-56E Sunk Nov 17 1944 JINYO Escort Aircraft Carrier 21,000 33-02N, 1123-33E Sunk Nov 18 1944 SUBMARINE CHASER NO 156 Submarine Chaser 100 e 33-07N, 123-09E Probably Sunk Nov 29 12944 DAIBOSHI MARY NO 6 Cargo 3,925 37-17N, 125-11E Sunk Jan 28 1945 KUME Frigate 900 e 33-56N, 123-06E Sunk Jan 28 1945 SANUKI MARU Converted Seaplane Tender 7,158 33-56N, 123-06E Sunk Feb 4 1945 TAIRAI MARU Passenger-Cargo 4,273 37-18N, 125-22E Sunk Feb 6 1945 SHOHEI MARU Passenger-Cargo 1,092 38-44N, 121-23E Sunk Mar 23 1945 DORYO MARU Cargo 2,274 29-31N, 127-41E Sunk Apr 9 1945 LEE TUNG Cargo 1,853 37-21N, 125-08E Sunk Jun 10 1945 DAIGEN MARU NO 2 Passenger-Cargo 1,999 43-21N, 140-40E Sunk Jun 10 1945 UNKAI MARU NO 8 Passenger-Cargo 1,293 43-23N, 140-32E Sunk Jun 10 1945 JINTSU MARU Passenger-Cargo 994 43-28N, 140-28E Sunk Jun 14 1945 SEIZAN MARU Passenger-Cargo 2,018 47-03N, 142-01E Sunk Jun 17 1945 EIJO MARU Cargo 2,274 42-38N, 139-49E Sunk 21 Vessels 88,091 USS Spearfish Apr 17 1942 UNKNOWN MARU Cargo 4,000 e 10-53N, 121-35E Sunk Apr 25 1942 TOBA MARU Cargo 6,995 17-01N, 120-15E Probably Sunk Jan 30 1944 TAMASHIMA MARU Passenger-Cargo 3,560 21-15N, 149-18E Sunk May 6 1944 TOYOURA MARU Cargo 2,510 32-16N, 127-08E Sunk 4 Vessels 17,065
USS Spikefish Date Name of Vessel Type of Vessel Tonnage Location Assessment Aug 13 1945 I 373 Submarine 1,660 29-02N, 123-53E Sunk USS Spot Mar 17 1945 NANKING MARU Passenger-Cargo 3,005 25-34N, 120-01E Sunk USS Springer Mar 19 1945 TRANSPORT NO 18 Landing Craft 1,500 e 26-33N, 127-11E Sunk Apr 28 1945 SUBMARINE CHASER NO 17 Submarine Chaser 440 32-34N, 128-52E Sunk May 2 1945 OJIKA Frigate 1,000 e 33-58N, 122-58E Sunk May 3 1945 COAST DEF VESSEL NO 25 Frigate 1,000 e 34-38N, 124-15E Sunk 4 Vessels 3,940 USS Steelhead Jan 10 1944 YAMABIKO MARU Converted Salvage Vessel 6,795 31-28N, 137-44E Sunk Jul 31 1944 DAKAR MARU Cargo 7,169 18-57N, 120-50E Sunk Jul 31 1944 FUSO MARU Transport 8,195 18-57N, 120-50E Sunk 3 Vessels 22,159 USS Sterlet Oct 25 1944 JINEI MARU Tanker 10,500 30-15N, 129-45E Sunk Mar 1 1945 TATEYAMA MARU Cargo 1,148 34-11N, 139-43E Sunk May 29 1945 KURETAKE MARU Cargo 1,924 46-36N, 144-22E Sunk May 29 1945 TENRYO MARU Cargo 2,231 46-36N, 144-22E Sunk 4 Vessels 15,803 USS Stingray Uan 10 1942 HARBIN MARU Transport 5,167 17-40N, 109-20E Sunk Jun 28 1942 SAIKYO MARU Converted Gunboat 1,292 12-41N, 136-22E Sunk May 2 1943 TAMON MARU Cargo 8,156 27-18N, 121-38E Sunk Mar 30 1944 IKUSHIMA MARU Cargo 3,943 20-42N, 143-00E Sunk 4 Vessels 18,558
USS Sturgeon Date Name of Vessel Type of Vessel Tonnage Location Assessment Mar 30 1942 CHOKO MARU Cargo 842 5-39S, 119-00E Sunk Apr 3 1942 UNKNOWN Frigate 750 e 00-36N, 119-19E Probably Sunk Jul 1 1942 MONTEVIDEO MARU Transport 7,267 18-37N, 119-29E Sunk Oct 1 1942 KATSURAGI MARU Aircraft Ferry 8,033 5-15S, 153-18E Sunk Jan 11 1944 ERIE MARU Cargo 5,493 32-56N, 132-02E Sunk Jan 24 1944 CHOSEN MARU Cargo 3,110 32-25N, 133-00E Sunk May 11 1944 SEIRYU MARU cargo 1,904 29-30N, 141-40E Sunk Jun 29 1944 TOYAMA MARU Passenger-Cargo 7,089 27-41N, 129-09E Sunk Jul 3 1944 TAIRIN MARU Cargo 6,862 38-52N, 129-56E Sunk 9 Vessels 41,350 USS Sunfish Mar 13 1943 KOSEI MARU Cargo 3,262 29-04N, 129-17E Sunk Aug 13 1943 EDO MARU Converted Gunboat 1,299 23-24N, 142-26E Sunk Sep 4 1943 KOZAN MARU Passenger-Cargo 4.180 22-22N, 120-04E Sunk Feb 23 1944 SHINYUBARI MARU Cargo 5,5354 15-17N, 145-03E Sunk Feb 23 1944 KUNISHIMA MARU Cargo 4,083 15-23N, 145-02E Sunk Jul 5 1944 SHINMEI MARU Passenger-Cargo 2,577 51-35N, 156-30E Sunk Jul 9 1944 TAIHEI MARU Cargo 6,284 51-17N, 155-34E Sunk Sep 10 1944 CHIHAYA MARU Tanker 4,701 33-52N, 127-41E Sunk Sep 13 1944 ETASHIMA MARU Cargo 6,435 35-04N, 124-49E Sunk Nov 17 1944 EDOGAWA MARU Cargo 6,968 33-31N, 124-32E Sunk Nov 18 1944 SEISH OMARU Passenger-Cargo 5,463 33-36N, 124-18E Sunk Nov 30 1944 DAIREN MARU Transport 3,748 38-06N, 124-39E Sunk Apr 16 1945 MANRYU MARU Cargo 1,620 39-36N, 142-05E Sunk Apr 16 1945 COAST DEF VESSEL NO 73 Frigate 800 e 39-36N, 142-05E Sunk Apr 19 1945 KAIHO MARU Cargo 1,093 42-22N, 142-16E Sunk Apr 19 1945 TAISEI MARU Cargo 1,948 42-23N, 142-13E Sunk 16 Vessels 59,815 USS Swordfish Dec 16 1941 ATSUTASAN MARU Cargo 8,662 18-06N, 109-44E Sunk Jan 24 1942 MYOKEN MARU Cargo 4,124 1-22N, 125-05E Sunk May 29 1942 UNKNOWN MARU Cargo 1,900 e 7-33N, 116-18E Sunk Jun 12 1942 BURMA MARU Cargo 4,584 10-08N, 102-34E Sunk Jan 19 1943 MYOHO MARU Cargo 4,4122 5-30S, 156-00E Sunk Aug 22 1943 NISHIYAMA MARU Cargo 3,016 2-40N, 137-10E Sunk Sep 5 1943 TENKAI MARU Cargo 3,203 1-10N, 142-10E Sunk
USS Swordfish Date Name of Vessel Type of Vessel Tonnage Location Assessment Jan 14 1944 YAMAKUNI MARU Passenger-Cargo 6,921 33-16N, 139-30E Sunk Jan 16 1944 DELHI MARU Converted Gunboat 2,182 34-04N, 139-56E Sunk Jan 27 1944 KASAGI MARU Converted Salvage Vessel 3,140 33-31N, 139-36E Sunk Jun 9 1944 MATSUKAZE Destroyer 1,270 26-59N, 143-13E Sunk Jun 15 1944 KANSEISHI MARU Cargo 4,804 29-30N, 141-11E Sunk 12 Vessels 47,928 USS Tambor Aug 7 1942 SHOFUKU Converted Net Tender 891 9-22N, 170-12E Sunk Aug 21 1942 SHINSEI MARU NO 6 Passenger-Cargo 4,928 6-45N, 158-10E Sunk Nov 3 1942 CHIKUGO MARU Cargo 2,461 20-18N, 108-39E Sunk May 29 1943 EISHO MARU Cargo 2,486 1735N, 110-45E Sunk Jan 29 1944 SHUNTAI MARU Cargo 2,253 27-22N, 128-29E Sunk Feb 3 1944 ARIAKE MARU Cargo 5,000 29-11N, 124-45E Sunk Feb 3 1944 GOYO MARU Tanker 8,496 29-11N, 124-45E Sunk Feb 12 1944 RONSAN MARU Passenger-Cargo 2,735 27-43N, 128-35E Sunk May 26 1944 CHIYO MARU Cargo 657 20-30N, 141-45E Sunk Aug 13 1944 TOEI MARU Cargo 2,324 48-56N, 149-03E Sunk Jun 2 1945 EIKA MARU Passenger-Cargo 1,248 20-30N, 107-57E Sunk 11 Vessels 33,479 USS Tang Feb 17 1944 GYOTEN MARU Cargo 6,854 8-04N, 149-28E Sunk Feb 22 1944 FUKUYAMA MARU Passenger-Cargo 3,581 14-47N, 144-50E Sunk Feb 23 1944 YAMASHIMO MARU Cargo 6,776 14-45N, 144-32E Sunk Feb 24 1944 ECHIZEN MARU Cargo 2,424 15-16N, 143-12E Sunk Feb 25 1944 CHOKO MARU Cargo 1,794 15-50N, 144-021E Sunk Jun 24 1944 TAMAHOKO MARU Passenger-Cargo 6,780 32-30N, 129-35E Sunk Jun 24 1944 TAINAN MARU Cargo 3,175 32-30N, 129-35E Sunk Jun 24 1944 NASUSAN MARU Passenger-Cargo 4,399 32-30N, 129-35E Sunk Jun 24 1944 KENNICHI MARU Cargo 1,938 32-30N, 129-35E Sunk Jun 30 1944 NIKKIN MARU Cargo 5,705 35-03N, 125-08E Sunk Jul 1 1944 TAIUN MARU NO 2 Cargo 998 34-33N,, 125-12E Sunk Jul 1 1944 TAKATORI MARU NO 1 Tanker 878 34-27N, 123-46E Sunk Jul 4 1944 ASUKAZAN MARU Cargo 7,886 35-22N, 125-56E Sunk Jul 4 1944 YAMAOKA MARU Cargo 6,932 36-05N, 125-48E Sunk Jul 6 1944 DORI MARU Cargo 1,469 38-40N, 123-40E Sunk Aug 11 1944 ROKO MARU Cargo 3,328 34-12N, 136-19E Sunk Aug 23 1944 TSUKUKSHI MARU Transport 8,135 34-37N, 137-50E Sunk
USS Tang Date Name of Vessel Type of Vessel Tonnage Location Assessment Oct 10 1944 JOSHU GO Cargo 1,658 25-20N, 1212-32E Sunk Oct 11 1944 OITA MARU Cargo 711 25-40N, 121-30E Sunk Oct 23 1944 TOUN MARU Cargo 1,915 24-57N, 120-25E Sunk Oct 23 1944 WAKATAKE MARU Cargo 1,920 24-57N, 120-25E Sunk Oct 23 1944 TATSUJU MARU Cargo 1,944 24-57N, 120-25E Sunk Oct 25 1944 KOGEN MARU Cargo 6,600 25-06N, 119-31E Sunk Oct 25 1944 MATSUMOTO MARU Cargo 7,024 25-06N, 119-31E Sunk 24 Vessels 93,824 USS Tarpon Feb 1 1943 FUSHIMI MARU Passenger-Cargo 10,935 34-16N, 138-17E Sunk Feb 8 1943 TATSUTA MARU Transport 16,975 33-45N, 140-25E Sunk 2 Vessels 27,910 USS Tautog Apr 26 1942 RO 30 Submarine 965 18-11N, 166-54W Sunk May 17 1942 I 28 Submarine 2,212 6-30N, 152-00E Sunk May 25 1942 SHOKA MARU Cargo 4,467 4-07N, 143-32E Sunk Aug 6 1942 OHIO MARU Passenger-Cargo 5,872 13-51N, 113-15E Sunk Oct 27 1942 UNKNOWN MARU Passenger-Cargo 4,000 e 10-20N, 108-43E Sunk Dec 25 1942 BANSHU MARU NO 2 Cargo 1,000 9-00S, 124-00E Sunk Jan 22 1943 HASSHU MARU Passenger-Cargo 1,873 5-40S, 120-35E Sunk Apr 9 1943 ISONAMI Destroyer 1,950 5-26S, 123-04E Sunk Apr 9 1943 PENANG MARU Cargo 5,214 5-29S, 123-02E Sunk Jun 6 1943 SHINEI MARU Cargo 973 7-00N, 123-37E Sunk Jun 20 1943 MEITEN MARU Cargo 4,474 15-57N, 140-55E Sunk Nov 4 1943 SUBMARINE CHASER NO 30 Submarine Chaser 100 7-34N, 134-00E Sunk Jan 3 1944 SAISHU MARU Cargo 2,082 33-44N, 136-02E Sunk Jan 4 1944 USA MARU Cargo 3,943 34-09N, 136-50E Sunk Mar 13 1944 RYUA MARU Cargo 1,925 47-41N, 152-41E Sunk Mar 13 1944 SHOJIN MARU Cargo 1,942 47-41N, 152-41E Sunk Mar 16 1944 SHIRAKUMO Destroyer 1,950 42-25N, 144-55E Sunk Mar 16 1944 NICHIREN MARU Passenger-Cargo 5,460 42-25N, 144-55E Sunk May 2 1944 RYOYO MARU Passenger-Cargo 5,973 48-04N, 153-16E Sunk May 3 1944 FUSHIMI MARU Passenger-Cargo 4,935 45-28N, 149-56E Sunk May 8 12944 MIYAZAKI MARU Passenger-Cargo 3,944 41-49N, 141-12E Sunk May 12 1944 BANEI MARU NO 2 Cargo 1,186 40-01N, 141-58E Sunk Jul 8 1944 MATSU MARU Cargo 887 40-56N, 141-27E Sunk
USS Tautog Date Name of Vessel Type of Vessel Tonnage Location Assessment Aug 2 1944 KONEI MARU Cargo 1,922 33-57N, 1136-20E Sunk Jan 17 1945 TRANSPORT NO 15 Landing Craft 1,500 e 31-09N, 130-29E Sunk Jan 20 1945 SHURI MARU Motor Torpedo Boat Tender 1,857 33-37N, 128-40E Sunk 26 Vessels 72,606 USS Tench Jun 2 1945 MIKAMISAN MARU Cargo 861 41-22N, 141-28E Sunk Jun 4 1945 RYUJIN MARU Cargo 517 40-54N, 141-29E Sunk Jun 9 1945 KAMISHIKA MARU Cargo 2,857 41-52N, 141-08E Sunk Jun 10 1945 SHOEI MARU NO 6 Tanker 834 41-20N, 141-29E Sunk 4 Vessels 5,069 USS Threadfin Jan 30 1945 ISSEI MARU Passenger-Cargo 1,864 33-30N, 135-31E Sunk Mar 28 1945 MIKURA Frigate 900 e 31-49N, 131-44E Sunk Jul 20 1945 MINESWEEPER NO 39 Minesweeper 630 e 35-01N, 1125-42E Sunk 3 Vessels 3,394 USS Thresher Apr 10 1942 SADO MARU Cargo 3,039 34-52N, 139-15E Sunk Jul 9 1942 SHINISHO MARU Motor Torpedo Boat Tender 4,836 8-43N, 167-33E Sunk Oct 31 1942 UNKNOWN MARU Cargo 3,000 e 4-40S, 118-54E Probably Sunk Dec 29 1942 HACHIAN MARU Cargo 2,733 4-45S, 113-54E Sunk Feb 21 1943 KUWAYAMA MARU Cargo 5,724 7-53S, 119-13E Sunk Mar 2 1943 TOEN MARU Tannker 5,232 3-29S, 117-17E Sunk Jul 1 1943 YONEYAMA MARU Passenger-Cargo 5,274 00-20N, 119-32E Sunk Nov 13 1943 MUKO MARU Transport 4,862 8-57N, 152-36E Sunk Jan 15 1944 TATSUNO MARU Cargo 6,960 19-45N, 120-40E Sunk Jan 15 1944 TOHO MARU Cargo 4,092 19-45N, 120-40E Sunk Jan 27 1944 KIKUZUKI MARU Cargo ,266 22-11N, 119-12E Sunk Jan 27 1944 KOSEI MARU Cargo 2,205 22-11N, 119-12E Sunk Jul 17 1944 SAINEI MARU Cargo 4,916 19-04N, 119-26E Sunk Jul 17 1944 SHOZAN MARU Cargo 2,838 19-04N, 119-26E Sunk Sep 18 1944 GYOKU MARU Cargo 6,854 35-05N, 124-24E Sunk Sep 25 1944 NISSEI MARU Cargo 1,468 37-32N, 124-33E Sunk Sep 26 1944 KOETSU MARU Cargo 873 37-13N, 123=48E Sunk 17 Vessels 66,172
USS Tilefish Date Name of Vessel Type of Vessel Tonnage Location Assessment Dec 22 1944 CHIDORI Motor Torpedo Boat 527 34-33N, 138-02E Sunk Mar 5 1945 MINESWEEPER NO 15 Minesweeper 492 29-30N, 129-33E Sunk 2 Vessels 1,019 USS Tinosa Nov 22 1943 KISO MARU Cargo 4,071 7-09N, 134-34E Sunk Nov 22 1943 YAMATO MARU Cargo 4,379 7-09N, 134-34E Sunk Nov 26 1943 SHINI MARU Cargo 3,811 6-56N, 134-38E Sunk Dec 3 1943 AZUMA MARU Passenger-Cargo 6,646 6-29N, 131-28E Sunk Jan 22 1944 KOSHIN MARU Passenger-Cargo 5,485 7-22N, 115-05E Sunk Jan 22 1944 SEINAN MARU Cargo 5,401 7-22N, 115-05E Sunk Feb 15 1944 ODATSUKI MARU Cargo 1,988 10-03N, 126-54E Sunk Feb 16 1944 CHOJO MARU Transport 2,610 9-15N, 127-05E Sunk May 4 1944 TAIBU MARU Cargo 6,440 20-54N, 118-14E Sunk May 4 1944 TOYOHI MARU Cargo 6,436 20-51N, 118-02E Sunk Jul 3 1944 KONSAN MARU Passenger-Cargo 2,733 32-24N, 128-46E Sunk Jul 3 1944 KAMO MARU Passenger-Cargo 7,954 32-24N, 128-46E Sunk Jun 9 1945 WAKATAMA MARU Cargo 2,211 37-32N, 129-10E Sunk Jun 12 1945 KEITO MARU Cargo 880 37-37N, 129-10E Sunk Jun 20 1945 KAISEI MARU Cargo 884 35-39N, 130-29E Sunk Jun 20 1945 TAITO MARU Cargo 2,726 36-04N, 130-26E Sunk 16 Vessels 64,655 USS Tirante Mar 25 1945 FUJI MARU Tanker 703 31-080N, 130-30E Sunk Mar 28 1945 NASE MARU Cargo 1,218 32-15N, 129-55E Sunk Apr 9 1945 NIKKO MARU Transport 5,057 36-50N, 123-55E Sunk Apr 14 1945 JUZAN MARU Passenger-Cargo 3,943 33-25N, 126-15E Sunk Apr 14 1945 COAST DEF VESSEL NO 31 Frigate 800 e 33-25N, 126-15E Sunk Apr 14 1945 NOMI Frigate 900 e 33-25N, 126-15E Sunk Jun 11 1945 HAKUJU MARU Cargo 2,220 32-37N, 129-45E Sunk Jul 8 1945 SAITSU MARU Passenger-Cargo 1,045 38-48N, 121-28E Sunk 8 Vessels 15,886 USS Torsk Aug 13 1945 KAIHO MARU Cargo 873 36-16N, 136-08E Sunk Aug 14 1945 COAST DEF VESSEL NO 13 Frigate 800 e 35-24N, 134-35E Sunk
USS Torsk Date Name of Vessel Type of Vessel Tonnage Location Assessment Aug 14 1945 COAST DEF VESSEL NO 47 Frigate 800 e 35-42N, 134-36E Sunk 3 Vessels 2,473 USS Trepang Oct 1 1944 TAKUNAN MARU Cargo 751 30-32N, 138-17E Sunk Oct 11 1944 TRANSPORT NO 105 Landing Craft 1,000 e 33-18N, 137-42E Sunk Dec 6 1944 BANSHU MARU NO 31 Cargo 748 18-54N, 120-49E Sunk Dec 6 1944 JINYO MARU Cargo 6,862 18-54N, 120-49E Sunk Dec 6 1944 FUKUYO MARU Cargo 5,463 18-59N, 121-05E Sunk Feb 24 1945 UKUKI MARU Cargo 875 e 33-58N, 136-18E Sunk Mar 3 1945 NISSHO MARU NO 2 Converted Gunboat 1,386 34-05N, 139-54E Sunk Apr 28 1945 TRANSPORT NO 146 Landing Craft 1,000 e 32-24N, 128-40E Sunk Apr 30 1945 MIHO MARU Cargo 4,667 34-20N, 123-58E Sunk May 4 1945 MINESWEEPER NO 20 Minesweeper 492 34-16N, 123-37E Sunk Jul 7 1945 KOUN MARU NO 2 Passenger-Cargo 606 41-21N, 141-28E Sunk 11 Vessels 23,850 USS Trigger Oct 17 1942 HOLLAND MARU Cargo 5,869 32-21N, 132-04E Sunk Dec 22 1942 TEIFUKU MARU Cargo 5,198 34-52N, 139-49E Sunk Jan 10 1943 OKIKAZE Destroyer 1,300 35-02N, 140-12E Sunk Mar 15 1943 MOMOHA MARU Cargo 3,103 00-00N, 145-00E Sunk Jun 1 1943 NOBORIKAWA MARU Cargo 2,182 35-02N, 140-14E Sunk Sep 18 1943 YOWA MARU Cargo 6,435 27-31N, 126-57E Sunk Sep 21 1943 SHIRIYA Tanker 6,500 26-27N, 122-40E Sunk Sep 21 1943 SHOYO MARU Tanker 7,498 26-27N, 122-40E Sunk Sep 21 1943 ARGUN MARU Cargo 6,662 26-27N, 122-40E Sunk Nov 2 1943 YAWATA MARU Cargo 1,852 28-49N, 134-50E Sunk Nov 2 1943 DELAGOA MARU Passenger-Cargo 7,148 28-55N, 134-43E Sunk Nov 13 1943 NICHISAN MARU Passenger-Cargo 4,433 32-57N, 125-06E Sunk Nov 21 1943 EIZAN MARU Cargo 1,681 36-40N, 125-31E Sunk Jan 31 1944 NASAMI Coastal Minelayer 4443 9-50N, 147-06E Sunk Jan 31 1944 YASUKUNI MARU Converted Submarine Tender 11,933 9-21N, 147-02E Sunk Apr 27 1944 MIIKE MARU Passenger-Cargo 11,739 8-20N, 134-53E Sunk Mar 18 1945 TSUKUSHI MARU NO 3 Cargo 1,012 28-05N, 126-44E Sunk Mar 27 1945 ODATE Repair Ship 1,564 30-40N, 127-50E Sunk 18 Vessels 86,552
USS Triton Date Name of Vessel Type of Vessel Tonnage Location Assessment Feb 17 1942 SHINYO MARU NO 5 Cargo 1,498 32-14N, 127-14E Sunk Feb 21 1942 SHOKYU MARU Cargo 4,484 32-10N, 126-28E Sunk Apr 23 1942 UNKNOWN MARU Trawler 1,000 e 28-22N, 153-18E Sunk May 1 1942 CALCUTTA MARU Passenger-Cargo 5,339 28-07N, 123-45E Sunk May 6 1942 TAIEI MARU Cargo 2,209 28-42N, 123-50E Sunk May 6 1942 TAIGEN MARU Passenger-Cargo 5,660 28-19N, 123-38E Sunk May 17 1942 I 164 Submarine 1,635 29-25N, 134-09E Sunk Jul 4 1942 NENOHI Destroyer 1,600 52-15N, 173-51E Sunk Dec 24 1942 AMAKASU MARU NO 1 Water Carrier 1,913 19-16N, 166-37E Sunk Dec 28 1942 OMI MARU Passenger-Cargo 3,393 6-23N, 160-17E Sunk Mar 6 1943 KIRIHA MARU Cargo 3,057 00-00N, 145-00E Sunk 11 Vessels 31,788 USS Trout Feb 10 1942 CHUWA MARU Cargo 2,719 25-30N, 122-38E Sunk May 2 1942 UZAN MARU Cargo 5,014 33-26N, 135-52E Sunk May 4 1942 KONGOSAN MARU Converted Gunboat 2,119 33-32N, 1236-05E Sunk Sep 21 1942 KOEI MARU Converted Net Tendner 863 6-54N, 151-51E Sunk Jan 21 1943 UNKNOWN MARU Cargo 2,984 e 11-25N, 109-22E Sunk Feb 14 1943 HIROTAMA MARU Converted Gunboat 1,911 4-11S, 117-45E Sunk Jun 15 1943 SANRAKU MARU Tanker 3,000 5-09N, 119-38E Sunk Jul 2 1943 ISUZU MARU Cargo 2,866 13-36N, 121-49E Sunk Sep 9 1943 I 182 Submarine 1,630 10-33N, 125-31E Sunk Sep 23 1943 RYOTOKU MARU Cargo 3,483 21-17N, 142-00E Sunk Sep 23 1943 YAMASHIRO MARU Passenger-Cargo 3,429 21-17N, 143-00E Sunk Feb 29 1944 SAKITO MARU Passenger-Cargo 7,126 22-40N, 131-50E Sunk 12 Vessels 37,144 USS Tullibee Aug 22 1943 KAISHO MARU Passenger-Cargo 4,164 10-09N, 147-25E Sunk Oct 15 1943 CHICAGO MARU Passenger-Cargo 5,866 24-35N, 120-31E Sunk Jan 31 1944 HIRO MARU Converted Net Tender 549 15-23N, 145-35E Sunk 3 Vessels 10,579
USS Tuna Date Name of Vessel Type of Vessel Tonnage Location Assessment Mar 4 1942 UNKNOWN MARU Cargo 4,000 e 32-33N, 133-26E Sunk May 15 1942 TOYOHARA MARU Cargo 805 33-34N, 125-09E Sunk Mar 30 1943 KUROHIME MARU Cargo 4,697 00-22S, 147-46E Sunk Dec 12 1943 TOSEI MARU Cargo 5,484 2-44N, 126-14E Sunk 4 Vessels 14,986 USS Tunny Feb 8 1943 KUSUYAMA MARU Cargo 5,306 22-40N, 119-12E Sunk Apr 2 1943 TOYO MARU NO 2 Cargo 4,163 7-23N, 149-13E Sunk Apr 7 1943 KOSEI MARU Passenger-Cargo 8,237 8-50N, 147-06E Sunk Jun 28 1943 SHOTOKU MARU Converted Gunboat 1,964 14-10N, 145-03E Sunk Mar 23 1944 I 42 Submarine 2,212 6-40N, 134-03E Sunk May 17 1944 NICHIWA MARU Cargo 4,955 14-45N, 142-40E Sunk 6 Vessels 26,837 USS Wahoo Dec 10 1942 KAMOI MARU Cargo 5,355 4-56S, 154-58E Sunk Jan 26 1943 UNKNOWN MARU Cargo 4,000 e 2-37N, 139-42E Sunk Jan 26 1943 BUYO MARU Transport 5,447 1-55N, 139-14E Sunk Jan 26 1943 FUKUEI MARU NO 2 Cargo 1,901 1-55N, 139-14E Sunk Mar 19 1943 ZOGEN MARU Cargo 1,428 38-29N, 122-19E Sunk Mar 19 1943 KOWA MARU Transport 3,217 38-27N, 122-18E Sunk Mar 21 1943 NITTSU MARU Cargo 2,183 38-05N, 124-33E Sunk Mar 21 1943 HOZAN MARU Cargo 2,260 38-11N, 124-33E Sunk Mar 23 1943 UNKNOWN MARU Cargo 2,427 e 38-37N, 121-01E Sunk Mar 24 1943 TAKAOSAN MARU Cargo 2,076 39-01N, 122-25E Sunk Mar 25 1943 SATSUKI MARU Cargo 827 38-10N, 123-26E Sunk Mar 25 1943 UNKNOWN MARU Cargo 2,556 e 38-13N, 123-24E Sunk Mar 29 1943 YAMABATO MARU Cargo 2,556 30-26N, 129-41E Sunk May 7 1943 TAMON MARU NO 5 Passenger-Cargo 5,260 40-05N, 141-53E Sunk May 9 1943 TAKAO MARU Passenger-Cargo 3,204 38-57N, 141-49E Sunk May 9 1943 JINMU MARU Cargo 1,912 38-57N, 141-49E Sunk Sep 29 1943 MASAKI MARU NO 2 Cargo 1,238 40-00N, 130-00E Sunk Oct 5 1943 KONRON MARU Transport 7,908 34-00N, 130-00E Sunk Oct 6 1943 KANKO MARU Passenger-Cargo 1,288 37-18N, 129-33E Sunk Oct 9 1943 KANKO MARU Cargo 2,995 37-18N, 129-33E Sunk 20 Vessels 60,038
USS Whale Date Name of Vessel Type of Vessel Tonnage Location Assessment Jan 13 1943 IWASHIRO MARU Cargo 3,550 9-54N, 167-07E Sunk Jan 17 1943 HEIYO MARU Passenger-Cargo 9,815 10-13N, 151-25E Sunk Jan 27 1943 SHOAN MARU Passenger-Cargo 5,624 14-15N, 153-43E Sunk Mar 23 1943 KENYO MARU Cargo 6,486 17-16N, 144-56E Sunk May 26 1943 SHOEI MARU Cargo 3.580 14-17N, 144-53E Sunk Aug 8 1943 NARUTO MARU Aircraft Ferry 7,149 24-12N, 142-51E Sunk Jan 16 1944 DENMARK MARU Cargo 5,870 23-09N, 135-14E Sunk Apr 9 1944 HONAN MARU Cargo 5,401 33-50N, 128-01E Sunk Oct 6 1944 AKANE MARU Tanker 10,241 19-40N, 118-05E Sunk 9 Vessels 57,716
Japanese Naval and Merchant Vessels Sunk During World War II
by
Combinations Including United States Submarines
Date Name of Vessel Type of Vessel Tonnage Location Flag of Agent Agent Assessment Jan 26 1943 TOKAI MARU Passenger-Cargo 8,358 13-27N, 144-37E United States Snapper
Flying FishSunk Mar 28 1943 SUWA MARU Transport 10,672 19-13N, 166-34E Unitd States Tunny
Finback
SeadragonSunk Oct 6 1943 KAZAHAYA Tanker 8,000 10-01N, 148-31E United States Tinosa
SteelheadSunk Oct 27 1943 FUJI MARU Transport 9,138 28-25N, 128-04E United States Shad
GraybackSunk Jan 17 1944 TARUSHIMA MARU Cargo 4,865 22-45N, 135-00E United States Whale
SeawolfSunk May 14 1944 BISAN MARU Cargo 4,500 9-00N, 133-34E United States Bowfin
AsproSunk Jul 26 1944 TOSAN MARU Passenger-Cargo 8,666 18-13N, 117-50E United States Crevalle
FlasherSunk Jul 31 1944 YOSHINO MARU Transport 8,9990 19-10N, 120-58E United States Steelhead
ParcheSunk Aug 12 1944 SHIMPO MARU Tanker 5,135 13-17N, 120-07E United States Puffer
BluefishSunk Oct 7 1944 KINUGASA MARU Passenger-Cargo 8,407 14-30N, 115-48E United States Hawkbill
BayaSunk Oct 9 1944 TOKUWA MARU Cargo 1,943 12-46N, 118-02E United States Hawkbill
BecunaSunk Oct 30 1944 TAKANE MARU Tanker 10,021 30-14N, 132-50E United States Trigger
Salmon
SterletSunk Nov 4 1944 KAGU MARU Passenger-Cargo 6,806 15-54N, 119-45E United States Ray
Bream
GuitarroSunk Nov 21 1944 GYOSAN MARU Cargo 5,698 10-39N, 115-05E United States Flounder
GuavinaSunk Dec 6 1944 KENJO MARU Cargo 6,933 18-57N, 120-58E United States Segundo
RazorbackSunk 8 Dec 8 1944 SHOEI MARU Tanker 2,854 4-03N, 111-31E United States Paddle
HammerheadSunk
Date Name of Vessel Type of Vessel Tonnage Location Flag of Agent Agent Assessment Jan 8 1945 HIKOSHIMA MARU Tanker 2,854 24-37N, 120-30E United States Barb
Picuda
QueenfishSunk Apr 7 1945 ISUZU Light Cruiser 5,700 7-38S, 118-09E United States Charr
GabilanSunk United States Submarines and Navy Carrier-Based Aircraft Jun 4 1942 SORYU Light Aircraft Carrier 17,500 30-13N, 179-17E United States Nautilus
Navy Carrier-Based AircraftSunk Jul 25 1944 SAMIDARE Destroyer 1,580 8-10N, 134-38E United States Batfish
Navy Carrier-Based AircraftSunk Sep 9 1944 EIYO MARU NO 2 Tanker 5,061 8-11N, 122-40E United States Paddle
Navy Carrier-Based AircraftSunk Oct 25 1944 TAMA Light Cruiser 5,700 21-23N, 127-19E United States Jalao
Navy Carrier-Based AircraftSunk Nov 14 1944 YUTAKA MARU Cargo 2,704 12-40N, 120-40E United States Guavina
Navy Carrier-Based AircraftSunk Dec 6 1944 YASUKUNI MARU Cargo 5,794 18-51N, 121-07E United States Segundo
Navy Carrier-Based AircraftSunk Jan 3 1945 SHINSHU MARU Converted Water Carrier 8,170 21-57N, 119-44E United States Aspro
Navy Carrier-Based AircraftSunk United States Submarines and Land-Based Aircraft Feb 19 1943 HIBARI MARU Cargo 6,550 6-45S, 155-50E United States Gato
Navy Land-Based AircraftSunk May 22 1944 TSUKUBA MARU Cargo 3,172 21-20N, 117-10E United States Picuda
Army AircraftSunk Jan 31 1945 TAIETSU MARU Cargo 6,8990 14-55N, 109-01E United States Boarfish
Army AircraftSunk Mar 17 1945 IKOMASAN MARU Passenger-Cargo 3,173 26-08N, 119-56E United States Spot
Navy Land-Based AircraftSunk
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