Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Stylocidaris amboinae (ambulacral plates + apical disc) Description Left: Part of ambulacrum: The median space is densely covered by relatively large secondary tubercles. Right: Part of apical disc.Scale: left: 2 mm; right: 5 mm. Author Mortensen, Theodor JPG file - 100.82 kB - 1 181 x 360 pixels added on 2011-02-23207 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Mortensen, Theodor Click here to return to the thumbnails overview