Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Clypeaster humilis (aboral) Description Aboral side: The primary spines are barely longer than the very densely distributed miliary spines.Test length 71 mm; Negros, Philippines. Author Schultz, Heinke JPG file - 438.00 kB - 1 181 x 1 524 pixels added on 2005-02-23660 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview