| Specimen ID | 116687 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | WI |
| County | Crawford |
| Locality | Mississippi River (R.M. 647.9) Lock/Dam #9 near Harpers Ferry, IA |
| Mapping Accuracy | Accurate |
| HUC8 Name | Coon-Yellow |
| HUC8 Number | 07060001 |
| HUC10 Name | Rush Creek-Mississippi River |
| HUC10 Number | 0706000107 |
| HUC12 Name | Leitner Creek-Mississippi River |
| HUC12 Number | 070600010707 |
| Map | |
| Collection Day | 4 |
| Collection Month | 11 |
| Collection Year | 1992 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Record Type | Personal communication |
| Disposal | ethanol |
| Verifier | Tim Yager, US Army COE, St. Paul, MN 612-220-0277 |
| Freshwater/Marine | Freshwater |
| Number Collected | 1 |
| Year Class | adult |
| Size | 10 - 12 mm |
