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 » ReferencesTetrapygus niger (apical system)Description Apical system: Four large anal plates cover the peroproct.Scale 3 mm.Author Schultz, HeinkeJPG file - 144.63 kB - 1 003 x 1 026 pixelsadded on 2005-02-23232 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha...© 2005 Schultz, HeinkeClick here to return to the thumbnails overview