ehow.com/video_4971567_take-care-hermit-... hermits are marine crabs. I know you need to have some larger empty shells around for when they get too big for the current one. Html.
Of animals that are Crabs ("false" and true) there are about eight thousand described species, with about 600 venturing into or living in freshwater. Infraorder Anomura, families of Hermit Crabs, Sand or Mole Crabs, Crab-like Crustaceans. Depressed carapaces, third pair of legs never chelate, fourth and fifth pair reduced.... Have a soft abdomen... live with bodies enclosed in discarded shells for the most part.
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