you are saying it's part rainbow because of the spotting pattern???
The anterior eye location and extended maxilla make me want to say it's a pure cutt. Either way....it is a gorgeous fish, awesome photo!!
From the spotting pattern of all other Westslope cutts(in which the spotting pattern has virtually no spots on the front 1/3 of the body) I have caught in this stream and the fact that it has a REDSTRIPE on the lateral line. Maxilla? It appears to be missing in my image.
fish base is a widely used database, and is quite reliable. Notice that it states "flanks with a narrow pink stripe". thus the red stripe on the lateral line actually supports the notion that it might be pure cutt. In addition, it implies that spots are simply more numerous in the rear, which they are in that picture. The maxilla is the upper jaw bone, and it extends far past the eye in cutthroat and not in rainbow trout. However, I've never been to the river you caught that fish on (unless it's the Mid. fork salmon river)so I can't say for sure. However, I'd be cautious in using the red lateral line and no spots on the head technique for Identifying cutthroat. Really, the maxilla is the best bet for identification (Which isn't always a sure bet in the case of hybrids, which is why you are probably right....check it out though, compare some pictures of cutts and bows, the maxilla/upper jaw bone is much shorter on rainbows). Again, it's a beautiful fish, wish i had caught it!
I appreciate your insight, the image quality is not very good, this is a scan of a print instead a negative or a slide. The colors were definately more pronounced on the fish than the image shows. If I can figure out how to unlock this floppy disk, I will post a better quality image. If anyone has any ideas on how to view images from a Seattle Film Works disk w/o the original program please tell.
The best way to id a hybrid is the presence of spots in the half moon shaped area spanning from the pectoral fins to the pelvic fins. All the other characteristics are not difinitive in identification. This looks like a cuttbow to me.