| Specimen ID | 263926 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| Country | Canada |
| State | ON |
| Locality | St. Lawrence River, 3 km northwest to Mallorytown |
| Mapping Accuracy | Accurate |
| HUC8 Name | Headwaters St. Lawrence River |
| HUC8 Number | 04290001 |
| HUC10 Name | Headwaters St. Lawrence River |
| HUC10 Number | 0429000104 |
| HUC12 Name | 041503090000 |
| HUC12 Number | 042900010407 |
| Map | |
| Collection Day | 25 |
| Collection Month | 3 |
| Collection Year | 1994 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Reference 1 |
| Ref. Number: | 18386 |
| Author: | Ontario Federation of Anglers and Hunters. |
| Date: | 2006 |
| Title: | Zebra mussel sightings (unpublished data). |
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| Record Type | Literature |
| Freshwater/Marine | Freshwater |
| Number Collected | 1000+ |
| Year Class | Adult |
| Size | 1.5 cm |
