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IMIS Photogallery » Echinodermata (echinoderms) » Echinoidea (sea urchins)
Echinostrephus aciculatus (ambulacra)
Echinostrephus aciculatus (ambulacra)
Description Four pore-pairs per arc are developed in the ambulacra, the uppermost larger than the others.
Scale 1 mm. Author Schultz, Heinke JPG file - 68.94 kB - 709 x 654 pixels added on 2005-02-23228 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke
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