Invasion

Invasion Description

1st Record: Coos Bay/OR/Isthmus Slough (1954, Carlton 1979; Carlton unpublished; Wonham et al. 2005)

Geographic Extent

Palix River Pilings/WA/Willapa Bay (1994); OR-WA/Columbia River estuary (2 specimens) (2003, Sytsma 2004); Newport/OR/Yaquina Bay (1985, Chapman 1988, USNM 235015, US National Museum of Natural History 2007); Waldport/OR/Alsea Bay (1987, Chapman 1988; Cohen and Carlton 1995, USNM 235015, US National Museum of Natural History 2007); ;Coos Bay/OR/Isthmus Slough (1954, Carlton 1979; Carlton unpublished; Wonham et al. 2005); Vine St., Coos Bay/OR/Coos Bay ((1986, Chapman 1988); N Of Coast Guard Dock, At Foot Of Bayshore Ave, Coos Bay/OR/Coos Bay (USNM 235017, US National Museum of Natural History 2007); CA/Klopp Lake, Mad River Sloughs (Humboldt Bay) (2000, Boyd et al. 2002);