Myrmidon
| Name | Myrmidon |
| Type | Steamer |
| GRT | 4,965 tons |
| Country |  British |
| Built | 1905 |
| Builder | Armstrong, Whitworth & Co., Ltd., Newcastle |
| Operator | China Mutual Steam Navigation Co., Ltd. (A. Holt & Co.), Liverpool |
| History |
U-boat attacks on Steamer Myrmidon
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 7 Sep 1917 | UC 54 (Heinrich XXXVII Prinz Reuß zu Köstritz) | Damaged | Beached at Philippeville, refloated and repaired. | 37° 10'N, 6° 51'E | Cardiff - Alexandria | coal | 2 |
Position of attack on Myrmidon
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