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IMIS Photogallery » Echinodermata (echinoderms) » Echinoidea (sea urchins)
Heterocentrotus trigonarius (aboral)
Heterocentrotus trigonarius (aboral)
Description Aboral side: This young specimen already shows differentiated spines. In the ambulacra the primary spines increase gradually in size towards the ambitus.
Length of test 21 mm, width 23 mm; Reunion. Author Schultz, Heinke JPG file - 149.61 kB - 1 084 x 912 pixels added on 2005-02-23270 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke
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