Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Centrostephanus longispinus (spines) Description Spines of Centrostephanus longispinus. Left: base of aboral primary spine; middle: adapical club-shaped spine with red tip; right: distal end and base of oral spine.Scale 1 mm. Author Mortensen, Theodor JPG file - 226.97 kB - 1 338 x 1 578 pixels added on 2005-02-23515 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Mortensen, Theodor Click here to return to the thumbnails overview