| Reference no. | Carl, G.C., W.A. Clemens and C.C. Lindsey, 1959 |
| Ecosystem | Salish Sea |
| Status | questionable |
| Abundance | |
| Lifestage | adults |
| Regional database | |
| Remarks | Introduced into the Cowichan and Little Qualicum Rivers in Vancouver Island. Marine occurrences to be confirmed. |