Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Psammechinus miliaris (interambulacra + ambulacra) Description Interambulacrum and adjacent ambulacra: The tubercles are larger than those of Psammechinus microtuberculatus.Scale 5 mm. Author Schultz, Heinke JPG file - 254.97 kB - 1 233 x 804 pixels added on 2005-02-231 053 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview