Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Echinostrephus molaris (ambulacral plates) Description Ambulacral plates of the upper side: The uppermost pore-pair of each arc is enlarged and associated with a larger tube foot.Scales 1 mm. Author Mortensen, Theodor JPG file - 86.45 kB - 709 x 681 pixels added on 2005-02-23281 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Mortensen, Theodor Click here to return to the thumbnails overview