| Specimen ID | 157267 |
| Group | Crustaceans-Cladocerans |
| Genus | Bythotrephes |
| Species | longimanus |
| Common Name | spiny waterflea |
| Country | Canada |
| State | ON |
| Locality | Lake Simcoe |
| Mapping Accuracy | Approximate |
| HUC8 Name | Severn River-Lake Simcoe |
| HUC8 Number | 04220003 |
| Map | |
| Collection Day | 13 |
| Collection Month | 2 |
| Collection Year | 1995 |
| Year Accuracy | Actual |
| Potential Pathway | shipping ballast water |
| Status | established |
| Comments | Abundances as high as 670/m^3 in Cook's Bay. |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
