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Latin namePagarus bernhardus 
Size – Shell up to 3.5cm long 
Habitat – All over the shore and deep water

Unlike other crabs, the hermit crab doesn’t have a hard shell to protect itself. Instead it uses an empty sea snail shell, such as a winkle or whelk shell, as a home. Its two back legs have adapted into hooks so that it can anchor itself within the shell. As the crab grows it finds a bigger shell to move into.

Hermit Crab

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Hermit crabs need to find a larger empty shell as their body grows, and they will sometimes fight each other to gain a new empty shell.


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