Invasion

Invasion Description

1st Record: La Jolla/CA/California, (1/10/2001, Nygren 2002, 32°50.56'N, 117°16.86'W, intertidal flat with surfgrass (Phylospadix sp.)

Geographic Extent

La Jolla/CA/California, (1/10/2001, Nygren 2002, 32°50.56'N, 117°16.86'W, intertidal flat with surfgrass (Phylospadix sp.); outside Wrigley Marine Science Center/Santa Catalina Island/Pacific Ocean (1/14/2001, Nygren 2004, 33°26.70'N 118°29.05'W, 1 m, floating dock, amongst hydroids, sponges, bryozoans)