| Specimen ID | 609260 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | Contra Costa |
| Locality | Las Trampas Creek [W of Walnut Creek] |
| Mapping Accuracy | Accurate |
| HUC8 Name | Suisun Bay |
| HUC8 Number | 18050001 |
| HUC10 Name | Walnut Creek-Frontal Suisin Bay Estuaries |
| HUC10 Number | 1805000102 |
| HUC12 Name | Las Trampas Creek |
| HUC12 Number | 180500010202 |
| Map | |
| Collection Day | 14 |
| Collection Month | 5 |
| Collection Year | 2013 |
| Year Accuracy | Actual |
| Potential Pathway | unknown |
| Status | unknown |
| Record Type | Personal communication |
| Freshwater/Marine | Freshwater |
