Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Arbacia lixula (aboral) Description Aboral side: The spination is dense, in other specimens the spines may be less closely packed.Diameter with spines 55 mm; Malta. Author Schultz, Heinke JPG file - 169.31 kB - 888 x 879 pixels added on 2005-02-23903 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview