Origin
Native to New Zealand and its surrounding islands, and it is now naturalized in Australia and Europe.


Life Cycle
Ovoviviparous and parthenogenic (i.e., needs no fertilization), P. antipodarum is highly adaptable aquatic snails that can tolerate a broad range of aquatic conditions. A single female may produce an average of 230 offspring a year.

Distribution
P. antipodarum is established in all western states in the US along with the Great Lakes of Lake Ontario, Lake Erie, Lake Michigan, and Lake Superior.

Control Efforts
Public education and outreach is the best form of prevention for P. antipodarum. Boaters and anglers should clean gear and equipment after use.

https://www.fws.gov/columbiariver/ans/factsheets/mudsnail.pdf
https://nas.er.usgs.gov/queries/factsheet.aspx?SpeciesID=1008

 

Resources


Selected Images



Maps



EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

State Regulated List

State Lists - This map identifies those states that have this species on their invasive species list or law.

Taxonomic Rank


Domain: Eukarya
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda Cuvier, 1795
Subclass: Caenogastropoda L. R. Cox, 1960
Order: Littorinimorpha A. N. Golikov & Starobogatov, 1975
Superfamily: Truncatelloidea J. E. Gray, 1840
Family: Tateidae Thiele, 1925
Genus: Potamopyrgus W. Stimpson, 1865
Potamopyrgus antipodarum (J.E. Gray, 1853)