| Specimen ID | 117979 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| Country | Canada |
| State | ON |
| Locality | Severn River [=Green River], (Rama/Muskoka) Ontario, Canada (connected to and north of Lake Couchiching) |
| Mapping Accuracy | Approximate |
| HUC8 Name | Severn River-Lake Simcoe |
| HUC8 Number | 04220003 |
| Map | |
| Collection Year | 1996 |
| Year Accuracy | Actual |
| Potential Pathway | shipping |
| Status | established |
| Comments | This report from Francine MacDonald, 6/9/98. |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
