| Specimen ID | 156825 |
| Group | Crustaceans-Amphipods |
| Genus | Apocorophium |
| Species | lacustre |
| Common Name | scud |
| State | IL |
| County | Calhoun |
| Locality | Illinois River at Hardin, Illinois |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower Illinois |
| HUC8 Number | 07130011 |
| HUC10 Name | Swan Lake-Illinois River |
| HUC10 Number | 0713001110 |
| HUC12 Name | Old Macoupin Creek-Illinois River |
| HUC12 Number | 071300111004 |
| Map | |
| Collection Day | 16 |
| Collection Month | 1 |
| Collection Year | 2003 |
| Year Accuracy | Estimated |
| Potential Pathway | shipping |
| Status | established |
| Comments | Native to Atlantic Coast from Maine to Florida. |
| Record Type | Personal communication |
| Earliest Record | state |
| Verifier | Dr. Edward Hendrycks, Canadian Museum of Nature |
| Freshwater/Marine | Freshwater |