Specimen Information

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

Specimen ID1655262
GroupMollusks-Gastropods
GenusPotamopyrgus
Speciesantipodarum
Common NameNew Zealand mudsnail
StateCA
CountySanta Cruz
LocalitySan Lorenzo River, Henry Cowell Redwoods State Park
Mapping AccuracyAccurate
HUC8 NameMonterey Bay
HUC8 Number18060015
HUC10 NameSan Lorenzo River
HUC10 Number1806001502
HUC12 NameCarbonera Creek-San Lorenzo River
HUC12 Number180600150203
Map
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Collection Day20
Collection Month11
Collection Year2020
Year AccuracyActual
Potential Pathwayhitch hiker | dispersed
Statusunknown
CommentsAfter reviewing literature to find similar-sized native species in the area, I have concluded that this specimen appears to be P. antipodarium, as the spire height and number of whorls are characteristic of the species and not the native Pyrgulopsis of the area with shells more globular, exhibiting ~4 whorls and short spire heights. Per Hershler et al. 2016
Record TypeNAS sighting report
VerifierCayla Morningstar, USGS
Freshwater/MarineFreshwater
Number Collected1
Photo
Potamopyrgus antipodarum
Potamopyrgus antipodarum
Potamopyrgus antipodarum
Potamopyrgus antipodarum


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Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/21/2024].

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