Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Stylocidaris ryukyuensis (ambulacral plates) Description Ambulacral plates: They are very typical in having the inner tubercles of a plate arranged one above the other.Scale 2 mm. Author Schultz, Heinke JPG file - 56.77 kB - 709 x 422 pixels added on 2011-02-23194 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke Click here to return to the thumbnails overview