| Specimen ID | 52731 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | MT |
| County | Gallatin |
| Locality | Madison River at Bakers Hole [Rt. 191 bridge crossing SE of Hebgen Dam/Lake] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Madison |
| HUC8 Number | 10020007 |
| HUC10 Name | Headwaters Madison River |
| HUC10 Number | 1002000702 |
| HUC12 Name | Madison Arm-Madison River |
| HUC12 Number | 100200070205 |
| Map | |
| Collection Day | 20 |
| Collection Month | 9 |
| Collection Year | 2000 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | established |
| Comments | Pers. comm. from Dr. Dan Gustafson to Dr. Billie Kerans, 9/20/2000. |
| Record Type | Personal communication |
| Verifier | Dr. Dan Gustafson, Montana State University, Bozem |
| Freshwater/Marine | Freshwater |
