Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Stylocidaris effluens (ambulacral plates + apical system) Description Left: Part of ambulacrum. The space between the marginal tubercles is covered with irregular smaller tubercles. Right: Apical system.Left: Scale 2 mm. Right: Scale 6 mm. Author Mortensen, Theodor JPG file - 140.28 kB - 1 181 x 535 pixels added on 2011-02-23193 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Mortensen, Theodor Click here to return to the thumbnails overview