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Echinodermata (echinoderms)
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Echinoidea (sea urchins)
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 2005-02-23
292 views
From reference
Schultz, H. (2006). Sea urchins: A guide to worldwide sha...
© 2005 Schultz, Heinke
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