Invasion

Invasion Description

1st Record: Everett/WA/Steamboat Slough (Puget Sound) (1940, Banse 1979)

Geographic Extent

WA/Skagit Bay (1974, Banse 11979; Gallagher et al. 1983); Everett/WA/Steamboat Slough (Puget Sound) (1940, Banse 1979, 48 02 10N, 122 02 50W); Seattle/WA/Kellog Island Passage, Elliot Bay (Cohen et al. 2001); Seattle/WA/Turning Basin, Elliot Bay (Cohen et al. 2001);