| Specimen ID | 257945 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | IA |
| County | Cerro Gordo |
| Locality | a pond in East Park in Mason City |
| Mapping Accuracy | Accurate |
| HUC8 Name | Winnebago |
| HUC8 Number | 07080203 |
| HUC10 Name | Willow Creek |
| HUC10 Number | 0708020302 |
| HUC12 Name | Cheslea Creek-Willow Creek |
| HUC12 Number | 070802030203 |
| Map | |
| Collection Day | 6 |
| Collection Month | 11 |
| Collection Year | 2008 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft |
| Status | collected |
| Comments | Found on a fountain pump that was pulled out of the pond. |
| Record Type | NAS sighting report |
| Freshwater/Marine | Freshwater |
| Number Collected | 4 |
