| Specimen ID | 160864 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | San Joaquin |
| Locality | Mokelumne River [at Big Bend just NE of Lockeford, CA] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Mokelumne |
| HUC8 Number | 18040012 |
| HUC10 Name | Lower Mokelumne River |
| HUC10 Number | 1804001211 |
| HUC12 Name | Murphy Creek-Mokelumne River |
| HUC12 Number | 180400121102 |
| Map | |
| Collection Month | 12 |
| Collection Year | 2003 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | established |
| Record Type | Personal communication |
| Earliest Record | drainage |
| Verifier | California Dept. Fish and Game |
| Freshwater/Marine | Freshwater |
