Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Prionocidaris baculosa (aboral) Description Aboral side: The dark apical system and ambulacra are conspicuous.Diameter of test 45 mm; Negros, Philippines. Author Schultz, Heinke JPG file - 171.49 kB - 1 029 x 1 038 pixels added on 2005-02-23292 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview