Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Echinothrix diadema (aboral) Description Aboral side: The anal tube is small, black and indistinct.Test diameter 52 mm, South Sea.ZMH Author Schultz, Heinke JPG file - 374.94 kB - 1 032 x 1 362 pixels added on 2005-02-23299 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview