Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Glyptocidaris crenularis (ambularal plates + apical disc) Description Left: Ambulacral plates. Right: Apical disc.Scale 5 mm. Author Mortensen, Theodor JPG file - 90.77 kB - 914 x 464 pixels added on 2011-02-23216 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Mortensen, Theodor Click here to return to the thumbnails overview