| Specimen ID | 879722 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | MD |
| County | Harford |
| Locality | Chesapeake Bay, S of mouth of Susquehanna River |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Chesapeake Bay |
| HUC8 Number | 02060001 |
| HUC10 Name | Upper Chesapeake Bay |
| HUC10 Number | 0206000100 |
| HUC12 Name | Upper Chesapeake Bay |
| HUC12 Number | 020600010000 |
| Map | |
| Collection Day | 29 |
| Collection Month | 5 |
| Collection Year | 2015 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | established |
| Comments | "found 10-15 mussels attached to the base of Eurasian watermilfoil stems where they attach to the root structure" |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
| Number Collected | 10-15 |
