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 (aboral secondary spines)Description The aboral secondary spines end in a very sharp point covered by a thick skin-sheath containing the poison gland.Scale 1 mm.Author Schultz, HeinkeJPG file - 128.30 kB - 1 063 x 1 772 pixelsadded on 2005-02-23228 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha...© 2005 Schultz, HeinkeClick here to return to the thumbnails overview