| Specimen ID | 116409 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | IN |
| County | Lake |
| Locality | Lake Michigan, S.W. Bay, 1.5 miles from shore and about 200 yds. off Inland Steel County, East Chicago, IN |
| 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 Month | 8 |
| Collection Year | 1990 |
| Year Accuracy | Actual |
| Potential Pathway | shipping |
| Status | established |
| Comments | The date collected given as 8/90 - 9/91 |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
| Size | 10-30 mm |
