Meet Wimblee, one of my favorite crabbies that I have had for a long, long time. He came to me in this shell, gave it up for a short time and went back. I have a plethora of other shells but he is stubborn. On the upside I suppose it’s a good sign that he isn’t feeling threatened by predators or dessication. This shell is not a thin walled shell either, it’s a large Thais shell. I can only guess he has, over the years, worn the inside of it so much it became week. The huge hole on his back just appeared in the past week or so.