Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Stylocidaris rufa (ambulacral plates + apical disc) Description Left: Part of ambulacrum. Right: Part of apical disc.Left: Scale 2 mm. Right: Scale 4 mm. Author Mortensen, Theodor JPG file - 77.25 kB - 1 063 x 337 pixels added on 2011-02-23188 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Mortensen, Theodor Click here to return to the thumbnails overview