Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Prionocidaris baculosa (ambulacral plates) Description Ambulacral plates: The pores are connected by a distinct groove, separated from the next pair by a sharp ridge.Scale 1 mm. Author Schultz, Heinke JPG file - 95.09 kB - 1 097 x 423 pixels added on 2005-02-23281 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview