Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Diadematacea (tubercle) Description Tubercles perforated. Author Schultz, Heinke JPG file - 20.46 kB - 592 x 411 pixels added on 2005-02-23659 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview