| Specimen ID | 1753152 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | Orange |
| Locality | Brea Creek downstream of Union Pacific |
| Mapping Accuracy | Accurate |
| HUC8 Name | San Gabriel |
| HUC8 Number | 18070106 |
| HUC10 Name | Lower San Gabriel River |
| HUC10 Number | 1807010606 |
| HUC12 Name | Brea Creek-Coyote Creek |
| HUC12 Number | 180701060603 |
| Map | |
| Collection Day | 29 |
| Collection Month | 6 |
| Collection Year | 2023 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | established |
| Record Type | NAS sighting report |
| Verifier | WL Willis, Aquatic Bioassay and Consulting Laboratories |
| Number Collected | 2 |
