Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Spatangoida (apical system) Description Compact apical system. Author Schultz, Heinke JPG file - 37.09 kB - 472 x 548 pixels added on 2005-02-231 354 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview