| Specimen ID | 293816 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | MD |
| County | Harford |
| Locality | Susquehanna River, off Havre de Grace |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower Susquehanna |
| HUC8 Number | 02050306 |
| HUC10 Name | Susquehanna River |
| HUC10 Number | 0205030617 |
| HUC12 Name | Rock Run-Susquehanna River |
| HUC12 Number | 020503061713 |
| Map | |
| Collection Day | 3 |
| Collection Month | 12 |
| Collection Year | 2012 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft | dispersed |
| Status | established |
| Reference 1 |
| Ref. Number: | 26949 |
| Author: | Maryland Department of Natural Resources |
| Date: | 2012 |
| Title: | More zebra musels found in Chesapeake Bay |
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| Comments | Collected off concrete anchor blocks from buoys being removed for winter storage. |
| Record Type | Literature |
| Freshwater/Marine | Freshwater |
| Number Collected | 20 live |
