Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Calocidaris micans (primary spine, partial section) Description Part of section of primary spine: The surface is entirely smooth.No scale. Author Mortensen, Theodor JPG file - 37.27 kB - 591 x 289 pixels added on 2011-02-23234 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Mortensen, Theodor Click here to return to the thumbnails overview