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 » ReferencesAsthenosoma varium (oral primary spines)Description In all species of the echinothuriids the oral primary spines are equipped with a distal hoof. Hoofs (arrows) on the oral side of Asthenosoma varium.Scale 10 mm.Author Schultz, HeinkeJPG file - 176.35 kB - 945 x 637 pixelsadded on 2011-02-23238 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de...© 2011 Schultz, HeinkeClick here to return to the thumbnails overview