| Specimen ID | 1522519 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | Contra Costa |
| Locality | Appian Creek tributary to San Pablo Creek, El Sobrante. |
| Mapping Accuracy | Accurate |
| HUC8 Name | San Pablo Bay |
| HUC8 Number | 18050002 |
| HUC10 Name | San Pablo Creek-Frontal San Pablo Bay Estuaries |
| HUC10 Number | 1805000207 |
| HUC12 Name | San Pablo Creek |
| HUC12 Number | 180500020701 |
| Map | |
| Collection Day | 23 |
| Collection Month | 10 |
| Collection Year | 2018 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | established |
| Record Type | NAS sighting report |
| Freshwater/Marine | Freshwater |
| Number Collected | 100s |
| Photo | |
