Long-spined Urchin, Diadema antillarum, just outside moat wall at Fort Jefferson in Dry Tortugas National Park, Florida, USA

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Snorkelers can explore the colorful corals and sponges along the moat around Fort Jefferson, finding such species as this Long-spined Urchin, Diadema antillarum, on Garden Key in Dry Tortugas National Park, Florida, USA

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Size: 5230px × 3487px
Photo credit: © Lee Rentz / Alamy / Afripics
License: Licensed
Model Released: No

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