| Specimen ID | 35624 |
| Group | Fishes |
| Genus | Gymnocephalus |
| Species | cernua |
| Common Name | Ruffe |
| State | MI |
| County | Ontonagon |
| Locality | Firesteel River near mouth (Lake Superior)[~7 mi. NE of Ontonagon, MI] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Keweenaw Peninsula |
| HUC8 Number | 04020103 |
| HUC10 Name | Firesteel River-Frontal Lake Superior |
| HUC10 Number | 0402010301 |
| HUC12 Name | Flintsteel River |
| HUC12 Number | 040201030103 |
| Map | |
| Collection Day | 22 |
| Collection Month | 6 |
| Collection Year | 1999 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Record Type | Personal communication |
| Disposal | discarded |
| Verifier | Gary Czypinski, USFWS, Ashland, WI |
| Freshwater/Marine | Freshwater |
| Number Collected | 1 |
| Year Class | adult |
| Size | 100 m |