Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Arbacia punctulata (oral spines) Description Oral spines: There are glassy "caps" at the distal end.Longest spine 14 mm. Author Schultz, Heinke JPG file - 92.58 kB - 1 105 x 788 pixels added on 2005-02-23361 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview