Invasion

Invasion Description

1st Record: Samoa/CA/Humboldt Bay (1931, Iverson 1974, cited by Carlton 1979, associated with the wood-boring isopod Sphaeroma quoianum)

Geographic Extent

CA/Humboldt Bay (1931 Iverson 1974, cited by Carlton 1979); , 3/4 Miles N Of Samoa/CA/Humboldt Bay (1972, USNM 280122, U.S. National Museum of Natural History 2007); CA/Hookton Slough, Humboldt Bay (2000, Boyd et al. 2002); Klopp Lake,Humboldt Bay (2000, Boyd et al. 2002); Mad River Sloughs #1 and #2, , Humboldt Bay (2000, Boyd et al. 2002); Bracut/CA/Humboldt Bay (2000, Boyd et al. 2002) CA/Jacoby Creek, Humboldt Bay (2000, Boyd et al. 2002); OR/Coos Bay (1995, Charleston/OR/Isthmus Slough, Coos Bay (Cohen and Carlton 1995, Davidson 2006)