| Specimen ID | 253857 |
| Group | Crustaceans-Amphipods |
| Genus | Echinogammarus |
| Species | ischnus |
| Common Name | scud |
| State | WI |
| County | Door |
| Locality | Lake Michigan, in Green Bay south of Egg Harbor in Frank E. Murphy State Park |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lake Michigan |
| HUC8 Number | 04190000 |
| HUC10 Name | Lake Michigan |
| HUC10 Number | 0419000002 |
| HUC12 Name | Lake Michigan |
| HUC12 Number | 041900000200 |
| Map | |
| Collection Day | 4 |
| Collection Month | 8 |
| Collection Year | 2008 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | collected |
| Record Type | NAS sighting report |
| Disposal | preserved in alcohol |
| Freshwater/Marine | Freshwater |
| Number Collected | 1 |
