| Main Ref. | Carlton, J.T., 1985 |
| To | San Francisco Bay, California |
| FAO area | Pacific, Eastern Central |
| From | Western North Pacific |
| FAO area | Pacific, Northwest |
| Year | 1957 |
| Range | |
| Period | 1950-1974 |
| Established in the Wild | Unknown |
| Established in Aquaculture | |
| Significant Ecological Interactions | Unknown |
| Significant Socio-economic Effects | |
| Introduced by | |
| Reason | ballast water |
| Other Reason | |
| Comments | Also introduced from Korea. Possibly introduced via ballast water. There were introductions to Los Angeles Harbor in 1962 and Elkhorn Slough in 1979. Ref. Carlton, J.T., 1985 |