| Specimen ID | 1409688 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | Contra Costa |
| Locality | Mt. Diablo Creek, north of Clayton Library adjacent to public trail |
| Mapping Accuracy | Accurate |
| HUC8 Name | Suisun Bay |
| HUC8 Number | 18050001 |
| HUC10 Name | Mount Diablo Creek-Frontal Suisun Bay Estuaries |
| HUC10 Number | 1805000103 |
| HUC12 Name | Mount Diablo Creek-Frontal Suisun Bay Estuaries |
| HUC12 Number | 180500010302 |
| Map | |
| Collection Day | 4 |
| Collection Month | 3 |
| Collection Year | 2017 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | established |
| Record Type | NAS sighting report |
| Freshwater/Marine | Freshwater |
| Photo | |
