Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Heliocidaris erythrogramma (ambulacral plates) Description Ambulacral plates at the peristomial edge: The pore-pairs are arranged in dense, oblique series.Scale 2 mm. Author Mortensen, Theodor JPG file - 142.15 kB - 851 x 803 pixels added on 2005-02-23249 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Mortensen, Theodor Click here to return to the thumbnails overview