Dave Hughes is a big champion of "All Fur Flies". In his book, "Wet Flies", he provides tying detail. Basically a fur body (no tail) with tying loop guard hairs for collar.
I was cleaning up my tying desk and came across a card of his flies and thought I would tie one.
I don't see them tied much these days, although there are some very close relatives. I think Whitlock's RFSN is pretty close if tied "sans" tails.