Specimen Information

Potamopyrgus antipodarum
Potamopyrgus antipodarum
(New Zealand mudsnail)

Specimen ID1613943
Common NameNew Zealand mudsnail
CountyContra Costa
LocalityAlamo Creek, approx. 750 m upstream of Japonica Way
Mapping AccuracyAccurate
HUC8 NameSan Francisco Bay
HUC8 Number18050004
HUC10 NameArroyo de la Laguna
HUC10 Number1805000405
HUC12 NameAlamo Creek
HUC12 Number180500040501
Collection Day12
Collection Month6
Collection Year2019
Year AccuracyActual
Potential Pathwayhitch hiker
Comments246 individuals found in 600-organism subcount from bioassessment sample ID 204R02180 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 Collected246


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Citation information: U.S. Geological Survey. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [8/13/2022].

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