| Specimen ID | 154515 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | MT |
| County | Lewis and Clark |
| Locality | Missouri River at Wolf Creek Bridge [~3 mi NE of Wolf Creek, MT] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Missouri |
| HUC8 Number | 10030101 |
| HUC10 Name | Rattlesnake Gulch-Missouri River |
| HUC10 Number | 1003010120 |
| HUC12 Name | Log Gulch-Missouri River |
| HUC12 Number | 100301012008 |
| Map | |
| Collection Day | 15 |
| Collection Month | 6 |
| Collection Year | 2002 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | established |
| Comments | Discovered a small number of snails. This location jumped drainages in the state. |
| Record Type | Personal communication |
| Earliest Record | County |
| Verifier | Dr. Dan Gustafson |
| Freshwater/Marine | Freshwater |
| Specimen Impact | "There is little at risk in the invertebrate community here as it is a typically low diversity tail-water site. Impacts on the very productive fishery seem possible and the area will serve as a source for many other areas including distant ones as this is a designation fishery." - Dan Gustafson |
