Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Pygmaeocidaris prionigera (apical system) Description Part of apical system.Scale 4 mm. Author Mortensen, Theodor JPG file - 43.07 kB - 827 x 530 pixels added on 2011-02-23177 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Mortensen, Theodor Click here to return to the thumbnails overview