| Specimen ID | 1670482 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | PA |
| County | Chester |
| Locality | Brandywine creek at Johnsontown Park |
| Mapping Accuracy | Accurate |
| HUC8 Name | Brandywine-Christina |
| HUC8 Number | 02040205 |
| HUC10 Name | East Branch Brandywine Creek |
| HUC10 Number | 0204020501 |
| HUC12 Name | Lower East Branch Brandywine Creek |
| HUC12 Number | 020402050105 |
| Map | |
| Collection Day | 7 |
| Collection Month | 10 |
| Collection Year | 2021 |
| Year Accuracy | Actual |
| Potential Pathway | dispersed | hitch hiker |
| Status | established |
| Record Type | NAS sighting report |
| Verifier | N. Macelko, S. Hartzell Pennsylvania Fish and Boat Commission |
| Freshwater/Marine | Freshwater |
| Number Collected | 4 |
| Photo | |
