hermit crab به انگلیسی
From Longman Dictionary
hermit ˌcrab noun [countable]
a kind of crab that lives in the empty shells of other sea creatures
Example
Anyone who has tried to remove a hermit crab from its shell will know how tenacious these creatures can be
A hermit crab carrying a sea anemone around on its shell
A hermit crab sticks sand and weed on its shell, and all Jay’s glitz was camouflage
But the cowbird and hermit crab can make no such claims
Suitably sized shells are often in short supply and in some areas this limits the hermit crab population