Invasion

Invasion Description

1st Record: WA/Oyster Bay, Puget Sound (1915, USNM, from stomach of a duck, Carlton 1979; Shoemaker 1947);

Geographic Extent

WA/Oyster Bay, Puget Sound (1915, USNM, from stomach of a duck, Carlton 1979; Shoemaker 1947); WA/Totten Inlet, Puget Sound (Shoemaker 1947); Greenbank, Whidby Island/WA/Puget Sound (Shoemaker 1949, cited by Carlton 1979); Pier 90 Beach, Seattle/WA/Elliott Bay, Puget Sound (2000, Cohen et al. 2001); Bell Harbor Marina, Seattle/WA/Elliott Bay, Puget Sound (2000, Cohen et al. 2001); Seattle/WA/Kellogg Island Passage, Elliott Bay, Puget Sound (2000, Cohen et al. 2001);