Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Podophora atratus (ambulacral plates) Description Ambulacral plates from the aboral side: The 8 to 12 pore-pairs per plate are arranged in double arcs.Scales 2 mm. Author Mortensen, Theodor JPG file - 160.31 kB - 1 028 x 899 pixels added on 2005-02-23351 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Mortensen, Theodor Click here to return to the thumbnails overview