Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Eupatagus valenciennesi (apical system) Description Apical system: The madreporite does not expand very far to the posterior.Scale 1 mm. Author Schultz, Heinke JPG file - 78.67 kB - 945 x 1 065 pixels added on 2005-02-23264 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview