| Specimen ID | 1333509 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | Humboldt |
| Locality | Freshwater Lagoon |
| Mapping Accuracy | Accurate |
| HUC8 Name | Mad-Redwood |
| HUC8 Number | 18010102 |
| HUC10 Name | Big Lagoon-Frontal Pacific Ocean |
| HUC10 Number | 1801010205 |
| HUC12 Name | Luffenholtz Creek-Frontal Pacific Ocean |
| HUC12 Number | 180101020503 |
| Map | |
| Collection Day | 22 |
| Collection Month | 9 |
| Collection Year | 2016 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | unknown |
| Comments | New Zealand mudsnails occupy entire western shoreline and presumably the whole lagoon. Yearly National Park Service monitoring for aquatic invasive species has occurred for the past 15 years. This is the first discovery of mudsnails in Freshwater Lagoon |
| Record Type | NAS sighting report |
| Freshwater/Marine | Freshwater |
