Invasion

Invasion Description

1st Record: CA/San Francisco Bay (1904, Richardson 1904, cited by cited by Menzies and Barnard 1951; Carlton 1979, associated with the isopod Sphaeroma quoianum)

Geographic Extent

CA/San Francisco Bay (1904, Richardson 1904; Menzies and Barnard 1951; Carlton 1979); San Mateo Bridge/CA/South San Francisco Bay (1980, USNM 184393 , U.S. National Museum of Natural History 2007); Sausalito, N End Of Town At End Of Harbor Drive/CA/San Francisco Bay (1972, USNM 280115, U.S. National Museum of Natural History 2007); Palo Alto Yacht Harbor/CA/San Francisco Bay (1972, USNM 280116, U.S. National Museum of Natural History 2007); Berkeley/CA/San Francisco Bay, Berkeley Harbor (1971, USNM 280118, U.S. National Museum of Natural History 2007); N Of Strawberry Point/CA/Richardson Bay, San Francisco Bay (1972, USNM 280120, U.S. National Museum of Natural History 2007); China Camp/CA/San Pablo Bay (2005, Robinson et al. 2011); cargo ship 'Florikan'/CA/Suisun Bay (Llanso et al. 2011)