Invasion

Invasion Description

1st Record: Crown Beach, Alameda/CA/San Francisco Bay (2006, Chris Brown, pers. comm., 12/15/06 and 12/19/06), 'The C. drepanochir that were given to me were apparently 'extremely' abundant on eel grass beds off of Crown Beach in Alameda. It appears to be a range expansion.'

Geographic Extent

Crown Beach, Alameda/CA/San Francisco Bay (2006, Chris Brown, pers. comm., 12/15/06); CA/Point San Pablo Bay (2007, Carr et al. 2011); Keller Beach/CA/Central San Francisco Bay (2007, Carr et al. 2011); Crown Beach/CA/South San Francisco Bay (2007, Carr et al. 2011); Bay Farm Island/CA/South San Francisco Bay (2007, Carr et al. 2011)