Invasion

Invasion Description

1st Record: CA/South and Central San Francisco Bay; (1993, Cohen and Carlton 1995)

Three museum records, identifed as Paranthura japonica from Pacific Grove. Monterey Bay, collected in 1930-1943, may refer to the native P. elegans, not described until 1951 (USNM 63778, USNM 63779, USNM 86338, U.S. National Museum of Natural History 2015).

Geographic Extent

CA/South and Central San Francisco Bay (1993, Cohen and Carlton 1995); Richmond/CA/San Francisco Bay (1993, Cohen and Carlton 1995); Sierra Point Marina/CA/South San Francisco Bay (2004, Cohen et al. 2005); Pier 39, San Francisco/CA/San Francisco Bay (2004, Cohen et al. 2005); San Leandro Marina/CA/South San Francisco Bay (2004, Cohen et al. 2005); Pete's Harbor/CA/South San Francisco Bay (2004, Cohen et al. 2005); Coyote Point/South San Francisco Bay (2004, Cohen et al. 2005); Brisbane/CA/Brisbane Lagoon, South San Francisco Bay (2004, Cohen et al. 2005); CA/South Francisco Bay (2012-2013, Jimenez et al. 2017, common on hard and soft substrates)