Alex Mustard / West Indian spider crab (Mithrax spinosissimus) shelter in a giant barrel sponge (Xestospongia muta) on a coral reef. Jardines de la Reina, Gardens of the Queen National Park, Cuba. Caribbean Sea.
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Shane Gross / Channel clinging crab (Mithrax spinosissimus) in a pond on Eleuthera Island, Bahamas.