| Specimen ID | 1655239 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | Sacramento |
| Locality | American River, opposite hatchery [near Nimbus] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower American |
| HUC8 Number | 18020111 |
| HUC10 Name | American River |
| HUC10 Number | 1802011102 |
| HUC12 Name | Upper American River |
| HUC12 Number | 180201110201 |
| Map | |
| Collection Day | 30 |
| Collection Month | 10 |
| Collection Year | 2020 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | established |
| Comments | In 0 to 12 inches of water, less than 3 ft from the shore, on the underside of large rocks that did not have slimy algae. |
| Record Type | NAS sighting report |
| Verifier | Wesley Daniel (USGS) |
| Freshwater/Marine | Freshwater |
| Number Collected | 60 |
