| Specimen ID | 118242 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| Country | Canada |
| State | ON |
| County | Muskoka |
| Locality | Lake Huron [Georgian Bay at Twelve Mile Bay 30 mi S of Parry Sound] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lake Huron |
| HUC8 Number | 04240002 |
| HUC10 Name | Lake Huron |
| HUC10 Number | 0424000202 |
| HUC12 Name | Lake Huron |
| HUC12 Number | 042400020200 |
| Map | |
| Collection Month | 8 |
| Collection Year | 1999 |
| Year Accuracy | Actual |
| Potential Pathway | shipping |
| Status | established |
| Comments | Noticed several years prior to this |
| Record Type | Personal communication |
| Verifier | Ontario Federation of Anglers and Hunters, Peterbo |
| Freshwater/Marine | Freshwater |
| Year Class | adult |