Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Clypeaster ravenelii (part of petal) Description Part of petal.Scale 3 mm. Author Mortensen, Theodor JPG file - 148.02 kB - 808 x 780 pixels added on 2009-02-23590 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 Mortensen, Theodor Click here to return to the thumbnails overview