Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Notocidaris mortenseni (primary spines) Description Primary spines: The aboral spines may show proximal wings with coarse serrations or almost smooth sides.Length of longer spine 61 mm; Weddell Sea.AWI Author Schultz, Heinke JPG file - 27.63 kB - 240 x 1 063 pixels added on 2011-02-23262 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke Click here to return to the thumbnails overview