Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Phyllacanthus imperialis (aboral) Description Aboral side: The ambulacra are distinctly sinuous.Test diameter 66 mm, Negros, Philippines. Author Schultz, Heinke JPG file - 185.16 kB - 944 x 914 pixels added on 2005-02-23411 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview