Quote Originally Posted by RoadToad View Post
Did that fish have an orange "slash" at the base of its throat? I didn't know this, but there's a trout called a "cutthroat" that is said to closely resemble a rainbow, but it has teeth on the base of its tongue. It also will hybridize with rainbows.

http://fwp.mt.gov/fieldguide/detail_AFCHA02088.aspx
I looked into that when I was reading up trying to figure out what was going on with the fish. There is no orange or red color anywhere on the fish like a cutthroat would have.