| Specimen ID | 1420692 |
| Group | Mollusks-Gastropods |
| Genus | Potamopyrgus |
| Species | antipodarum |
| Common Name | New Zealand mudsnail |
| State | CA |
| County | Contra Costa |
| Locality | Mt. Diablo Creek East of Ayers Road |
| Mapping Accuracy | Accurate |
| HUC8 Name | Suisun Bay |
| HUC8 Number | 18050001 |
| HUC10 Name | Mount Diablo Creek-Frontal Suisun Bay Estuaries |
| HUC10 Number | 1805000103 |
| HUC12 Name | Mount Diablo Creek-Frontal Suisun Bay Estuaries |
| HUC12 Number | 180500010302 |
| Map | |
| Collection Day | 17 |
| Collection Month | 5 |
| Collection Year | 2017 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker with stocked fish | hitch hiker on small watercraft |
| Status | established |
| Comments | 101 individuals found in 600-organism subcount from
bioassessment sample ID 207R01595 collected using State
of CA SWAMP protocol for benthic macroinvertebrates. |
| Record Type | NAS sighting report |
| Verifier | BioAssessment Services |
| Freshwater/Marine | Freshwater |
| Number Collected | 101 |
