| Specimen ID | 1932937 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | San Joaquin |
| Locality | Calaveras River at Shelton Road |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Calaveras California |
| HUC8 Number | 18040011 |
| HUC10 Name | Calaveras River |
| HUC10 Number | 1804001103 |
| HUC12 Name | North Gulch-Calaveras River |
| HUC12 Number | 180400110306 |
| Map | |
| Collection Day | 14 |
| Collection Month | 10 |
| Collection Year | 2025 |
| Year Accuracy | Actual |
| Potential Pathway | dispersed | hitch hiker |
| Comments | These were identified as part of bioassessment samples done by the ABL (Aquatic Bioassessment Lab). There were over 300 specimens out of 600 subsampled when processing the sample. They are dominating the community at this site. |
| Record Type | NAS sighting report |
| Verifier | Daniel Pickard (California State University, Chico) |
| Freshwater/Marine | Freshwater |
| Number Collected | 300 |
