Echinoidea image


Kamptosoma asterias (ambulacral plates)
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 2011-02-23241 viewsEchinoidea taxaScan of drawing Kamptosoma asterias (A. Agassiz, 1881)checked Kroh, Andreas 2021-02-24From reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... Download full sizeDownload full size © 2011 Mooi, Rich
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