| Specimen ID | 1321326 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | Alameda |
| Locality | ditch at Zone 6 line G adjacent to Grimmer Blvd and North of Blascow Rd |
| Mapping Accuracy | Accurate |
| HUC8 Name | San Francisco Bay |
| HUC8 Number | 18050004 |
| HUC10 Name | Agua Caliente Creek-Frontal San Francisco Bay Estuaries |
| HUC10 Number | 1805000407 |
| HUC12 Name | Agua Caliente Creek-Frontal San Francisco Bay Estuaries |
| HUC12 Number | 180500040701 |
| Map | |
| Collection Day | 18 |
| Collection Month | 5 |
| Collection Year | 2016 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | established |
| Comments | "10 individuals found in 600-organism subcount from bioassessment sample ID 205R03438 collected using State of CA SWAMP protocol for benthic macroinvertebrates..." |
| Record Type | NAS sighting report |
| Verifier | BioAssessment Services |
| Freshwater/Marine | Freshwater |
| Number Collected | 10 |
