Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Echinoneus cyclostomus (primary tubercles) Description The primary tubercles of Echinoneus cyclostomus are not perforated. Author Kroh, Andreas JPG file - 223.24 kB - 945 x 707 pixels added on 2009-02-23270 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 Kroh, Andreas Click here to return to the thumbnails overview