Potamopyrgus antipodarum
Potamopyrgus antipodarum
(New Zealand mudsnail)

86 results for Potamopyrgus antipodarum (New Zealand mudsnail)
Download Data

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1321329 CAAlamedaAlameda Creek approximately 600m E of Decoto Rd2016 18050004 San Francisco Bayestablished
1321327 CAAlamedaAlameda Creek approximately 675m NE of the intersection of Paseo Padre Parkway and Highway 842016 18050004 San Francisco Bayestablished
1321328 CAAlamedaAlameda Creek below Dry Creek2016 18050004 San Francisco Bayestablished
1321330 CAAlamedaArroyo Las Positas approximately 300m upstream of Airway Blvd2016 18050004 San Francisco Bayestablished
1321326 CAAlamedaditch at Zone 6 line G adjacent to Grimmer Blvd and North of Blascow Rd2016 18050004 San Francisco Bayestablished
1247382 CAButteFeather River, at Oroville boat launch2016 18020159 Honcut Headwaters-Lower Featherestablished
1247383 CAButteFeather River, at Oroville US Hwy 70 bridge2016 18020159 Honcut Headwaters-Lower Featherestablished
1321082 CAButteSacramento River adjacent Sacramento River National Wildlife Refuge2016 18020157 Big Chico Creek-Sacramento Riverestablished
1320998 CAContra CostaFranklin Creek north of Highway 42016 18050001 Suisun Bayestablished
1320997 CAContra CostaGrayson Creek south of Pacheco Blvd2016 18050001 Suisun Bayestablished
1320993 CAContra CostaOhlone Creek near Turquoise Dr2016 18050002 San Pablo Bayestablished
1320995 CAContra CostaSan Ramon Creek at Las Lomas High School2016 18050001 Suisun Bayestablished
1320996 CAContra CostaWalnut Creek north of Seven Hills Ranch Rd2016 18050001 Suisun Bayestablished
1320994 CAContra CostaWest Branch Alamo Creek at Red Willow Rd2016 18050004 San Francisco Bayestablished
1321085 CAGlennSacramento River at Montgomery Ave2016 18020157 Big Chico Creek-Sacramento Riverestablished
1321081 CAGlennSacramento River below Hwy 32 bridge in Hamilton City2016 18020157 Big Chico Creek-Sacramento Riverestablished
1321084 CAGlennSacramento River just NW of Hamilton City2016 18020157 Big Chico Creek-Sacramento Riverestablished
1333509 CAHumboldtFreshwater Lagoon2016 18010102 Mad-Redwoodunknown
1633085 CASan MateoPilarcitos Creek2016 18050006 San Francisco Coastal Southestablished
1633855 CASan MateoPolhemus Creek at restoration site above culveted station2016 18050004 San Francisco Bayunknown
1633854 CASan MateoSan Mateo Creek at South School2016 18050004 San Francisco Bayestablished
1633093 CASanta ClaraSaratoga Creek, at Cox Ave.2016 18050003 Coyoteunknown
1403328 CASanta CruzSoquel Creek2016 18060015 Monterey Bayunknown
1256648 CAVenturaNorth Fork Matilija Creek approximately 200m upstream from confluence of Matilija and North Fork Matilija Creeks2016 18070101 Venturaestablished
1256650 CAVenturaNorth Fork Matilija Creek at USGS stream gauge 111160002016 18070101 Venturaestablished

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.


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. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [6/26/2022].

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