Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Allocentrotus fragilis (aboral) Description Close-up of upper side: The pore-pairs are arranged in dense arcs of five.Diameter 58 mm, height 24 mm; Oregon, USA. Author Schultz, Heinke JPG file - 190.29 kB - 945 x 653 pixels added on 2005-02-23275 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview