Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Palaeotropus josephinae (apical region) Description Apical region: The ambulacral plates form a single row towards the apical disc.Scale 4 mm. Author Mortensen, Theodor JPG file - 87.16 kB - 827 x 953 pixels added on 2009-02-23422 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 Mortensen, Theodor Click here to return to the thumbnails overview