Invasion

Invasion Description

1st Record? Humboldt County/CA/Eel River (USNM 129393, US National Museum of Natural History 2007; Riegel 1959, tidal occurrence not noted)

Geographic Extent

Humboldt County/CA/Eel River (USNM 129393, US National Museum of Natural History 2007; Riegel 1959, tidal occurrence not noted)