I have this amazing book on Washington lakes that list even the smallest and most alpine of lakes in the state, and after a brief description of the lake is states what species of fish live in the lake. There are a very small few that list MBS, which is shown to be Montana Black Spot. I typed it in on google image and nothing at all close to a fish appeared. This book was made in the early 70s so I don't know if that fish has a different name now or what the case is. Any body know what it is? Thanks to every one who has commented on my previous threads, this website is amazing.