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Echinodiscus bisperforatus (repaired test)
Echinodiscus bisperforatus (repaired test)
Description Damage and regeneration of a sand dollar. The echinoids have an astonishing capacity of healing. Within some minutes after being damaged the animal begins to close the wound by a secretion of cells, which builds a calcareous meshwork that eventually becomes as solid as the test. This Echinodiscus bisperforatus had to create a new opening for the periproct, which lies normally more posteriorly.
Length of test 39 mm.
KV Author Schultz, Heinke JPG file - 158.45 kB - 1 118 x 872 pixels added on 2005-02-23309 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke
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