Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Sperosoma obscurum (ambulacral plates) Description Aboral plates of half an ambulacrum.Scale 6 mm. Author Schultz, Heinke JPG file - 75.26 kB - 709 x 625 pixels added on 2011-02-23206 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke Click here to return to the thumbnails overview