Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Microcyphus ceylanicus (apical disc + ambulacral plates) Description Left: Apical disc: The gonopores open in the distal edge of the genital plates. Right: Ambulacral plates: There is a distinct naked median area.Scales 3 mm. Author Mortensen, Theodor JPG file - 91.54 kB - 920 x 486 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