Rig broken down for ya'

Here is my Character Rhonda the Hermit crab

 In this second illustration, I have broken down the main parts that move in my animation

 In this third picture, I show the points of articulation with the parts that move and where they attach from. I have also showed the direction in which these parts move.

Everything you see here and in the animation below, was done through Flash.
I was able to create different layers and then convert them into symbols with multiple articulations in one set. Example: The left (orange and closer to us) foreleg has two articulation point. The first one has to do with the shoulder, attached to the body (the maroon figure directly behind it). The second articulation point is with the three orange, beige, and yellow part of that foreleg. It is able to move/shift forward and back giving it the shuffling/moving look it does.