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IMIS Photogallery » Echinodermata (echinoderms) » Echinoidea (sea urchins)
Lovenia elongata (aboral internal structures)
Lovenia elongata (aboral internal structures)
Description Internal structures of the aboral side: outer surface of the test: The muscles of the long primary spines are fixed in deeply depressed areoles around the tubercles, which form worm-shaped ampullae on the inner surface. The test itself is too thin to support these spines when the animal raises them in defence. Author Schultz, Heinke JPG file - 152.24 kB - 945 x 1 030 pixels added on 2005-02-23283 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke
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