| Specimen ID | 1322541 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | OR |
| County | Coos |
| Locality | Twomile Creek |
| Mapping Accuracy | Accurate |
| HUC8 Name | Sixes |
| HUC8 Number | 17100306 |
| HUC10 Name | New River-Frontal Pacific Ocean |
| HUC10 Number | 1710030601 |
| HUC12 Name | Morton Creek-Frontal Pacific Ocean |
| HUC12 Number | 171003060104 |
| Map | |
| Collection Day | 19 |
| Collection Month | 10 |
| Collection Year | 2016 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | established |
| Comments | Very high density |
| Record Type | NAS sighting report |
| Freshwater/Marine | Freshwater |
