| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 35435 | MI | Antrim | Torch Lake [~3 mi W of Bellaire] | 1912 | 04060105 | Boardman-Charlevoix | failed |
| 35458 | MI | Antrim | Torch Lake [~3 mi W of Bellaire] | 1912 | 04060105 | Boardman-Charlevoix | established |
| 1916998 | MI | Charlevoix | Lake Michigan, at Charlevoix, MI | 2023 | 04060105 | Boardman-Charlevoix | |
| 1917003 | MI | Charlevoix | Lake Michigan, at Charlevoix, MI | 2023 | 04060105 | Boardman-Charlevoix | |
| 1917004 | MI | Charlevoix | Lake Michigan, at Charlevoix, MI | 2023 | 04060105 | Boardman-Charlevoix | |
| 1917010 | MI | Charlevoix | Lake Michigan, at Charlevoix, MI | 2023 | 04060105 | Boardman-Charlevoix | |
Citation for this information:
U.S. Geological Survey, 2026,
Osmerus mordax: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 6/4/2026