Invasion

Invasion Description

1st Record: CA/Tomales Bay (1948, Menzies and Barnard 1951; Carlton 1979, associated with the wood-boring isopod Sphaeroma quoianum)

Geographic Extent

CA/Tomales Bay (1948, Menzies and Barnard 1951; Carlton 1979); Marin County, Off Highway 1/CA/Tomales Bay (1972, USNM 280114, U.S. National Museum of Natural History 2007)