A new integrated search interface will become available in the next phase of marineinfo.org.For the time being, please use IMIS to search available data PeopleInstitutesProjectsData setsPublicationsEvents IMIS Photogallery » ReferencesDiadema savignyi (apical system)Description Apical system: The blue ring in the apical system of the living animal remains as a dark line on the bare test (arrows), when the skin is still preserved. In bleached tests it is faintly visible as fine, depressed, bowed groove.Scale 2 mm.Author Schultz, HeinkeJPG file - 122.47 kB - 629 x 683 pixelsadded on 2005-02-23272 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha...© 2005 Schultz, HeinkeClick here to return to the thumbnails overview