The Humpy Prawn was tied by contributing fly tyer, Scott Howell. You can see more of Scott Howell's flies at The Flies of Scott Howell. See his notes below about this fly
Scotty's Notes: While the original designer of this fly is presently unknown, this easy-to-tie pattern was given to me by Mike Chamberlain of Ted's Sport Center, in Lynnwood WA. The bright Fuchsia colors of the Humpy Prawn have proven to be very effective for the abundant runs of Pink Salmon throughout Puget Sound.