Keyhole Sand Dollar
Mellita quinquiesperforata
Sea Urchins, Sea Stars, Sea Cucumbers and Relatives
Invertebrate Zoology
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Sea Egg
Tripneustes ventricosus
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Long-spined Sea Urchin
Diadema antillarum
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Rock-boring Urchin
Echinometra lucunter
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Sea Biscuit
Clypeaster rosaceus
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Slate Pencil Urchin
Eucidaris tribuloides
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Green Sea Urchin
Lytechinus variegatus
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Notched Sand Dollar
Encope michelini
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Green Sea Urchin
Lytechinus variegatus