Slate pencil urchin (Eucidaris tribuloides) from Puerto Rico, the Caribbean.

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Size: 4072px × 2657px
Photo credit: © Alf Jacob Nilsen / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: cidaridae, cidaroida, echinoderms, echinoidea, eucidaris, pencil, puerto, rico, sea, slate, tribuloides, urchin, urchins, usa1995