Specimen Information

Potamopyrgus antipodarum
Potamopyrgus antipodarum
(New Zealand mudsnail)

Specimen ID1468794
Common NameNew Zealand mudsnail
CountyContra Costa
LocalityWildcat Creek approx 100 m upstream of Rumrill Blvd
Mapping AccuracyAccurate
HUC8 NameSan Pablo Bay
HUC8 Number18050002
HUC10 NameSan Pablo Creek-Frontal San Pablo Bay Estuaries
HUC10 Number1805000207
HUC12 NamePinole Creek-Frontal San Pablo Bay Estuaries
HUC12 Number180500020702
Collection Day15
Collection Month5
Collection Year2018
Year AccuracyActual
Potential Pathwayhitch hiker | dispersed
Comments8 individuals found in 600-organism subcount from bioassessment sample ID 206R02343 (12 individuals found in duplicate sample from same location) collected using State of CA SWAMP protocol for benthic macroinvertebrates, by AMS for CCCWP. Taxonomy verified by BioAssessment Services.
Record TypeNAS sighting report
VerifierBioAssessment Services
Number Collected20


The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [8/4/2021].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.