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Plesiodiadema horridum, Panama label.Plesiodiadema horridum, Panama label.
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Plesiodiadema horridum, oral viewPlesiodiadema horridum, collected off the Galapagos Islands, Ecuador, North Pacific Ocean, by the R. V. Albatross from a depth of 2487 m.
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Plesiodiadema horridum, lateral viewPlesiodiadema horridum, collected off the Galapagos Islands, Ecuador, North Pacific Ocean, by the R. V. Albatross from a depth of 2487 m.
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Plesiodiadema horridum, aboral viewPlesiodiadema horridum, collected off the Galapagos Islands, Ecuador, North Pacific Ocean, by the R. V. Albatross from a depth of 2487 m.
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Plesiodiadema horridum (aboral view of damaged specimen), collected off the Galapagos Islands, Ecuador, North Pacific Ocean, by the R. V. Albatross from a depth of 2487 m. ID & Photographer : Simon E. Coppard (http://echinoderms.lifedesks.org/gallery?page=10).