Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Isaster obovatus (apical system) Description Apical system.Scale 2 mm. Author Mortensen, Theodor JPG file - 48.53 kB - 539 x 628 pixels added on 2009-02-23149 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 Mortensen, Theodor Click here to return to the thumbnails overview