| Αρ. Αναφοράς | McPhail, J.D. and R. Carveth, 1993 |
| Οικοσύστημα | Salish Sea |
| Κατάσταση | native |
| Αφθονία | common (usually seen) |
| Στάδιο ζωής | adults |
| Τοπική βάση δεδομένων | |
| Σχόλια | From CA-BC. Freshwater records from Vancouver and the Queen Charlotte Islands, the lower and middle Fraser, the Thompson, Stikine, Taku and Aslek Rivers, and rivers of the central coast. Common in coastal waters (Ref. 4925). First British Columbia specime |