Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Pericosmus akabanus (anterior petal) Description Distal end of left anterior petal: The distal most ambulacral plates do not extend to the outer sutures; they are occluded (shaded).Scale 5 mm. Author Mortensen, Theodor JPG file - 43.81 kB - 472 x 412 pixels added on 2009-02-23183 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 Mortensen, Theodor Click here to return to the thumbnails overview