Invasion

Invasion Description

1st Record: CA/Newport Bay (1951, Barnard 1961, on the hydroid Ectopleura crocea)

Geographic Extent

Jacks Landing/CA/Channel Islands Harbor (2000, Cohen et al. 2002; 2011, California Department of Fish and Wildlife 2014); Anacpapa Island Marina/CA/Channel Islands Harbor (2000, Cohen et al. 2002); Los Angeles County/CA/Marina del Rey (2000), Cohen et al. 2002); ; CA/Los Angeles Harbor (1951, Barnard 1953, cited by Carlton 1979; 2011, California Department of Fish and Wildlife 2014); CA/Long Beach Harbor (2017, 3 of 10 hard substrate survey stations, Ruiz and Geller 2021); CA/Newport Bay (1951, Barnard 1961, cited by Carlton 1979; 2011, California Department of Fish and Wildlife 2014); Corona del Mar/CA/Pacific Ocean (Barnard 1961, cited by Carlton 1979); CA/Port Hueneme (Ruiz and Geller 2015); Oceanside/CA/Oceanside Harbor (2011, California Department of Fish and Wildlife 2014); San Diego/CA/Mission Bay (2011, California Department of Fish and Wildlife 2014); Baja California/Mexico/Bahia de San Quintin (1961, cited by Carlton 1979; USNM 109156, US National Museum of Natural History 2007)