Invasion
Invasion Description
1st record: Newport area/CA/Newport Bay or Pacific Ocean (one specimen, Dall 1921, cited by Carlton 1979)
Geographic Extent
off Redondo beach/CA/Santa Monica Bay (dredged, one shell, Carlton 1979); Newport area/CA/Newport Bay or Pacific Ocean (One specimen, Dall 1921, cited by Carlton 1979)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Ballast Water |