Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Asthenosoma varium (apical system) Description Apical system: Only the genital plate is perforated by madrepores. Author van Noordenburg, Henk JPG file - 157.64 kB - 945 x 709 pixels added on 2011-02-23236 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 van Noordenburg, Henk Click here to return to the thumbnails overview