Kwan

I tie it with a weed guard. I also add rubber legs sometimes, particularly if reds a feeding on crab. It is sort of a crab/shrimp immitation. I use synthetic carpet yarn on mine and brush it out to get a smoother appearance. I use either bead chain eyes or lead eyes depending on depth I am fishing. Here is a link to some basic instructions.
http://www.flyfishinsalt.com/techniques/fly-recipies/tying-instructions-dorsy-s-kwan-fly
Prince of Tides

I tie this in a variety of colors from white to dark brown or rust. It is an easy tie, just make sure you don’t put too much bend in the hook shank. 30 deg at most. I usually use a large clear or amber larva lace for the body, underwraped with a gold mylar, but you can use a heavy mono.
http://www.laflyfish.com/flies/prince-of-tides.php