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 » ReferencesPsilocidaris echinulata (aboral)Description Aboral side: The length of the primary spines may reach four to five times the diameter of test. Generally the distal part is more or less broken.Test diameter 21 mm; Sulu Sea, Philippines.ZMUC ECH 473Author Schultz, HeinkeJPG file - 109.76 kB - 945 x 1 292 pixelsadded on 2011-02-23202 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de...© 2011 Schultz, HeinkeClick here to return to the thumbnails overview