Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Prionocidaris hawaiiensis (apical disc) Description Apical disc: The ocular and genital plates are conspicuously broad and low.Scale 10 mm. Author Mortensen, Theodor JPG file - 122.76 kB - 709 x 650 pixels added on 2011-02-23209 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Mortensen, Theodor Click here to return to the thumbnails overview