Invasion

Invasion Description

1st Record: WA/Puget Sound (Galtsoff 1931, cited by Carlton 1979)

Geographic Extent

WA/Puget Sound (Galtsoff 1931, cited by Carlton 1979); Taylor shellfish Rafts/WA/Totten Inlet (Cohen et al. 2001); Evergreen State College Beach/Eld Inlet (Cohen et al. 2001); Olympia/WA/Puget Sound (1961, ANSP 263159, Academy of Natural Sciences of Philadelphia 2013); only in the suothern portions/WA/Puget Sound (Dethier and Schoch 2005)