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Heterocentrotus mamillatus (aboral)
Heterocentrotus mamillatus (aboral)
Description Upper side: The primary spines are long and robust with a triangular point. They serve to wedge the echinoid between coral blocks in heavy water motion. The secondary spines are short cut.
Diameter with spines 136 mm; Hawaii. Author Schultz, Heinke JPG file - 96.35 kB - 945 x 692 pixels added on 2011-02-23294 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke
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