Alex Mustard / Hermit crab (Dardanus calidus) with hermit crab anemone's (Calliactis parasitica) attached to its shell. This anemone lives exclusively on the shells of hermit crabs. Tavolara Marine Protected Area, O...

Luis Quinta / Hermit crab {Dardanus calidus} inside Cowrie shell, Azores

Jose B. Ruiz / Hermit Crab {Dardanus calidus} Mediterranean, near Atlanticm, off Spain

Jose B. Ruiz / Hermit crab {Dardanus calidus} underwater. Spain.

Franco Banfi / Hermit crab (Dardanus calidus) Vis Island, Croatia, Adriatic Sea, Mediterranean.

Franco Banfi / Hermit crab (Dardanus calidus) Mitigliano Cave, Punta Campanella Marine Protected Area, Amalfi Coast, Italy, Tyrrhenian Sea, Mediterranean.