Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Gracilechinus stenoporus (apical system + ambulacral plates) Description Left: Apical system. Right: Ambulacral plates.Scales 4 mm. Author Mortensen, Theodor JPG file - 118.37 kB - 983 x 553 pixels added on 2011-02-23205 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Mortensen, Theodor Click here to return to the thumbnails overview