| Specimen ID | 52662 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | OR |
| County | Clatsop |
| Locality | Columbia River at Astoria, Oregon [Youngs Bay] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Lower Columbia |
| HUC8 Number | 17080006 |
| HUC10 Name | Baker Bay-Columbia River |
| HUC10 Number | 1708000605 |
| HUC12 Name | Baker Bay-Columbia River |
| HUC12 Number | 170800060500 |
| Map | |
| Collection Day | 16 |
| Collection Month | 9 |
| Collection Year | 1997 |
| Year Accuracy | Estimated |
| Potential Pathway | hitch hiker |
| Status | established |
| Comments | Date is approximate. The snails may have been there since 1995. |
| Record Type | Personal communication |
| Verifier | Terry Frees, NMFS 206-527-6764 |
| Freshwater/Marine | Freshwater |
