Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Centrostephanus coronatus (apical system) Description Apical system: The periproctal plates are very small.Scale 2 mm. Author Mortensen, Theodor JPG file - 100.40 kB - 709 x 673 pixels added on 2011-02-23256 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Mortensen, Theodor Click here to return to the thumbnails overview