Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Psammechinus microtuberculatus (aboral) Description Aboral side: The test is set with longer primary and secondary spines and densely distributed short green miliary spines. The pore zones are conspicuously lighter.Diameter with spines 38 mm; Greece. Author Schultz, Heinke JPG file - 210.83 kB - 1 081 x 1 110 pixels added on 2005-02-23665 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview