| Specimen ID | 117674 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | PA |
| County | Allegheny |
| Locality | Monongahela River (R.M. 23.8) at Lock 3 near Elizabeth, PA |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower Monongahela |
| HUC8 Number | 05020005 |
| HUC10 Name | Lower Monongahela River |
| HUC10 Number | 0502000508 |
| HUC12 Name | Fallen Timber Run-Monongahela River |
| HUC12 Number | 050200050807 |
| Map | |
| Collection Day | 22 |
| Collection Month | 4 |
| Collection Year | 1997 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Record Type | Personal communication |
| Disposal | preserved |
| Museum Cat Number | USACOE-Pittsburgh, PA |
| Verifier | U.S. Army Corps of Engineers, Pittsburgh, PA |
| Freshwater/Marine | Freshwater |
| Number Collected | 14 |
| Size | 17 -25 mm |
