Barton Warren Evermann, « Nerka, the Blueback Salmon », The world to-day: a monthly record of human progress, vol. 3, 1902, p. 2222.

And then down on the bottom were insect larvae and caddis worms living in queer little stone house made up of dainty bits of brightly-colored granite. Here he would feed during dark and stormy days; but when the sun was bright and the air was still he would come up nearer the surface to feast upon the….