Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Diadema setosum (in situ) Description The long, needle-like spines are black and grey. Their pointed, translucent tips are very fragile.Marsa Alam, Egypt, Red Sea. Author Rauch, H. & I. JPG file - 374.37 kB - 1 734 x 1 182 pixels added on 2005-02-23641 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Rauch, H. & I. Click here to return to the thumbnails overview