Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Stylocidaris albidens (ambulacral plates + apical disc) Description Left: Part of ambulacrum. The median space of the ambulacra is well covered by heterogeneous tubercles. Right: Part of apical disc. The tubercles are small and uniform.Right: Scale 5 mm. Author Mortensen, Theodor JPG file - 97.46 kB - 1 181 x 356 pixels added on 2011-02-23176 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Mortensen, Theodor Click here to return to the thumbnails overview