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Echinodermata (echinoderms)
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Echinoidea (sea urchins)
Kamptosoma asterias (ambulacral plates)
Description
Aboral ambulacral plates, (a) exterior view, (b) interior view (enlarged and mirrored). a. In the lower plates the aboral demiplate has disappeared. One triplet of plates (above) and one doublet (below) are shaded. b. The radial canal of the water vascular system leads up to the pore in the ocular plate (opl) along the median suture of the inner side (half-diagrammatic). Lateral canals connect it with the podial pore in each plate. Near the apical system (above) the primary plate and the adapical and adoral demiplate are joined to the vessel, but in the lower plates the adapical demiplate in each plate-set is not developed and the lateral canal ends blind (shaded spot).
a. Scale 5 mm.
Author
Mooi, Rich
JPG file
- 129.05 kB
- 1 481 x 965 pixels
added on 2011-02-23
307 views
From reference
Schultz, H. (2011). Sea urchins III: Worldwide regular de...
© 2011 Mooi, Rich
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