| Specimen ID | 273893 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | Stanislaus |
| Locality | Stanislaus River from Goodwin Dam to Ripon |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Stanislaus |
| HUC8 Number | 18040010 |
| HUC10 Name | Lower Stanislaus River |
| HUC10 Number | 1804001007 |
| HUC12 Name | Boscha Lake (Historical)-Stanislaus River |
| HUC12 Number | 180400100706 |
| Map | |
| Collection Month | 4 |
| Collection Year | 2010 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker with stocked fish |
| Status | established |
| Comments | Collection month is approximate. |
| Record Type | NAS sighting report |
| Freshwater/Marine | Freshwater |
