Burrowing sea urchins (Echinometra mathaei) from rarotonga, Cook Islands.

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Photo credit: © Alf Jacob Nilsen / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: burrowing, camarodonta, cook, echinoderm, echinodermata, echinoderms, echinoidea, echinometra, echinometridae, holothuroidea, islands, mathaei, pigghuder, rarotonga, sea, urchin, urchins