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 » ReferencesStylocidaris albidens (aboral)Description The primary spines are set with serially arranged thorns becoming ribbed towards the distal end. On the underside of the spines the thorns are much smaller.Diameter of test 22 mm; Siquijor, Philippines.Author Schultz, HeinkeJPG file - 228.81 kB - 1 152 x 945 pixelsadded on 2011-02-23194 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de...© 2011 Schultz, HeinkeClick here to return to the thumbnails overview