Potamopyrgus antipodarum
Potamopyrgus antipodarum
(New Zealand mudsnail)

49 results for Potamopyrgus antipodarum (New Zealand mudsnail)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1617491 CAAlamedaArroyo Las Positas, 300 m upstream of El Charro Rd.2019 18050004 San Francisco Bayestablished
1613953 CAAlamedaArroyo las Positas, approx. 400 m west of Airway Blvd.2019 18050004 San Francisco Bayestablished
1613949 CAAlamedaArroyo Las Positas, downstream of 1st Street2019 18050004 San Francisco Bayestablished
1617489 CAAlamedaArroyo Las Positas, upstream of Arroyo Vista2019 18050004 San Francisco Bayestablished
1613948 CAAlamedaArroyo Mocho, approx. 1200 m upstream of Concannon Blvd.2019 18050004 San Francisco Bayestablished
1613952 CAAlamedaArroyo Mocho, approx. 150 m east of Santa Rita Rd.2019 18050004 San Francisco Bayestablished
1617492 CAAlamedacanal Zone 6 Line H downstream of Old Warm Springs Blvd.2019 18050004 San Francisco Bayestablished
1617493 CAAlamedaCoyote Hills Slough just east of Nimitz Fwy2019 18050004 San Francisco Bayestablished
1613951 CAAlamedaCrow Creek, upstream of Cold Water Drive2019 18050004 San Francisco Bayunknown
1613950 CAAlamedaSan Leandro Creek, downstream of confluence with Stonehurst Creek2019 18050004 San Francisco Bayestablished
1617490 CAAlamedaUpper Alameda Creek, approx. 1400 m upstream of Calaveras Rd2019 18050004 San Francisco Bayestablished
1613943 CAContra CostaAlamo Creek, approx. 750 m upstream of Japonica Way2019 18050004 San Francisco Bayestablished
1613942 CAContra CostaFranklin Creek, approx. 150 m upstream of Franklin Canyon Rd.2019 18050001 Suisun Bayunknown
1613941 CAContra CostaMoraga Creek, adjacent to Miramonte High School2019 18050004 San Francisco Bayestablished
1613946 CAContra CostaRefugio Creek, approx. 100 m upstream of Sycamore Ave.2019 18050002 San Pablo Bayestablished
1613945 CAContra CostaRefugio Creek, approx. 200 m upstream of Coronado St.2019 18050002 San Pablo Bayestablished
1613944 CAContra CostaRodeo Creek, approx. 200 m downstream of 7th St.2019 18050002 San Pablo Bayestablished
1633067 CADel NorteElk Creek at North and Front Streets, Crescent City2019 18010101 Smithestablished
1655564 CALos AngelesBouquet Canyon Creek, 0.5 miles below Bouquet Canyon Reservoir2019 18070102 Santa Claraestablished
1633868 CAMarinLagunitas Creek in Samuel P. Taylor State Park campground.2019 18050005 Tomales-Drake Baysestablished
1635353 CAMarinLagunitas Creek near Turtle Island Restoration Network office is located.2019 18050005 Tomales-Drake Baysunknown
1617832 CAMarinRedwood Creek, from freshwater lagoon to just below the first car bridge (Pacific Way)2019 18050005 Tomales-Drake Baysestablished
1633832 CASan BernardinoBear Creek.2019 18070203 Santa Anaestablished
1633833 CASan BernardinoSanta Ana River.2019 18070203 Santa Anaestablished
1633862 CASan MateoMills Creek upstream California Rd2019 18050004 San Francisco Bayunknown

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 [6/29/2022].

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