| Specimen ID | 116499 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | WI |
| County | Grant |
| Locality | Mississippi River (R.M. 596) Pool 11, about 10 miles south of Cassville, Wisconsin |
| Mapping Accuracy | Accurate |
| HUC8 Name | Grant-Little Maquoketa |
| HUC8 Number | 07060003 |
| HUC10 Name | Sny Magill Creek-Mississippi River |
| HUC10 Number | 0706000307 |
| HUC12 Name | McCartney Branch-Mississippi River |
| HUC12 Number | 070600030707 |
| Map | |
| Collection Month | 8 |
| Collection Year | 1992 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Record Type | Personal communication |
| Verifier | Pam Thiel, USFWS-EMTC, Onalaska, Wisconsin 608-783 |
| Freshwater/Marine | Freshwater |
| Number Collected | 1 ? |
| Year Class | adult |
