Invasion

Invasion Description

1st Record: CA/Tomales Bay (1929, USNM 65813 , US National Museum of Natural History 2007

Geographic Extent

CA/Tomales Bay (1929, USNM 65813, US National Museum of Natural History 2007; 1941, Copeland 1941, cited by Carlton 1979; Riegel 1959; Graening and Rogers 2013)