A global citizen science platform
to discover, share and identify wildlife
Most species have long, spirally curved abdomens, which are soft, unlike the hard, calcified abdomens seen in related crustaceans. The vulnerable abdomen is protected from predators by a salvaged empty seashell carried by the hermit crab, into which its whole body can retract.
These crabs spend most of their life underwater as aquatic animals, live in varying depths of saltwater from shallow reefs and shorelines to deep sea bottoms and rarely leave for land.
I spotted several hermit crabs with varying shells.