Perplexing Sea Urchin, Hesperocidaris perplexa

Perplexing Sea Urchin, Hesperocidaris perplexa. Urchin collected off the beach at Isla Cosme, Agua Verde, Baja California Sur, March 2020. Size: 6.4 cm (2.5 inches) x 3.2 cm (1.25 inches). Collection and photograph courtesy of Barry Mastro, Escondido, California.  Identification courtesy of Dr. Francisco A. Solís-Marín, Mexico City.

Family:  The Perplexing Sea Urchin is a member of the Cidaridae Family of Pencil Urchins.

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