| Specimen ID | 1657920 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | Humboldt |
| Locality | Eel River, north side of Cock Robin Island |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower Eel |
| HUC8 Number | 18010105 |
| HUC10 Name | Salt River-Eel River |
| HUC10 Number | 1801010511 |
| HUC12 Name | Strongs Creek-Eel River |
| HUC12 Number | 180101051102 |
| Map | |
| Collection Day | 21 |
| Collection Month | 6 |
| Collection Year | 2021 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker | dispersed |
| Status | established |
| Record Type | NAS sighting report |
| Verifier | C. Morningstar, USGS |
| Freshwater/Marine | Brackish |
| Number Collected | 1000000 |
| Photo | |
