| Specimen ID | 1633855 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | San Mateo |
| Locality | Polhemus Creek at restoration site above culveted station |
| Mapping Accuracy | Accurate |
| HUC8 Name | San Francisco Bay |
| HUC8 Number | 18050004 |
| HUC10 Name | San Mateo Creek-Frontal San Francisco Bay Estuaries |
| HUC10 Number | 1805000409 |
| HUC12 Name | San Mateo Creek Frontal San Francisco Bay Estuaries |
| HUC12 Number | 180500040901 |
| Map | |
| Collection Day | 11 |
| Collection Month | 5 |
| Collection Year | 2016 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | unknown |
| Record Type | NAS sighting report |
| Verifier | Stefan Grozev, Amy Benson USGS |
| Freshwater/Marine | Freshwater |
| Number Collected | 52 |
