Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Prionocidaris australis (primary spines) Description The collar of the primary spines is covered by whitish spots.Length of longest spine 51 mm. Author Schultz, Heinke JPG file - 81.97 kB - 614 x 848 pixels added on 2005-02-23231 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview