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Asthenosoma varium (aboral secondary spines)
Asthenosoma varium (aboral secondary spines)
Description The aboral secondary spines end in a very sharp point covered by a thick skin-sheath containing the poison gland.
Scale 1 mm. Author Schultz, Heinke JPG file - 128.30 kB - 1 063 x 1 772 pixels added on 2005-02-23217 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke
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