Invasion

Invasion Description

1st Record: CA/South San Francisco Bay (Packard 1918, cited by Carlton 1979, old, worn, dead shells on Atlantic oyster beds)

Geographic Extent

CA/South San Francisco Bay (Packard 1918, cited by Carlton 1979, old, worn, dead shells on Atlantic oyster beds); Coyote Point/CA/San Francisco Bay (1967, Wicksten 1976, cited by Carlton 1979, old dead shells); CA/Palo Alto Yacht Harbor, South San Francisco Bay (1967, Wicksten 1976, cited by Carlton 1979, old dead shell)