Specimen Information

Potamopyrgus antipodarum
Potamopyrgus antipodarum
(New Zealand mudsnail)
Mollusks-Gastropods
Exotic

Specimen ID1897449
GroupMollusks-Gastropods
GenusPotamopyrgus
Speciesantipodarum
Common NameNew Zealand mudsnail
StateCA
CountyLos Angeles
LocalityLos Angeles River
Mapping AccuracyAccurate
HUC8 NameLos Angeles
HUC8 Number18070105
HUC10 NameUpper Los Angeles River
HUC10 Number1807010502
HUC12 NameTujunga Wash-Los Angeles River
HUC12 Number180701050208
Map
Collection Day24
Collection Month6
Collection Year2024
Year AccuracyActual
Potential Pathwaydispersed current | hitch hiker
CommentsConfirmed with PCR analysis by California Department of Fish and Wildlife
Record TypePersonal communication
VerifierWendy Willis (Aquatic Bioassay)
Freshwater/MarineFreshwater
Number Collected1


Disclaimer:

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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/21/2026].

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 general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.