Invasion

Invasion Description

1st Record: CA/San Diego Bay (as D. pizoni, described by Ritter and Forsyth 1919 from a single colony on a piling, Van Name 1945, 5 colonies found in an 1899 specimen collected by S. J. Holmes, identified by W. E. Ritter, Eldredge 1966)

Geographic Extent

CA/San Diego Bay (as D. pizoni, described by Ritter and Forsyth 1919 from a single colony on a piling, Van Name 1945, 5 colonies found in an 1899 specimen collected by S. J. Holmes, identified by W. E. Ritter, Eldredge 1966); CA/San Diego Bay (2001, Fairey et al. 2002); 2011, California Department of Fish and Wildlife 2014); Chula Vista Marina, San Diego/CA/San Diego Bay (2003, de Rivera et al. 2005a); Sunroad Marina, San Diego/CA/San Diego Bay (2003, de Rivera et al. 2005a)