Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Aporocidaris fragilis (aboral) Description Aboral side: The primary spines are long and slender, set with tiny thorns.Diameter of test 23 mm; Alaska, USA, 3550 m deep.ZMUC Author Schultz, Heinke JPG file - 140.57 kB - 945 x 1 393 pixels added on 2011-02-23229 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke Click here to return to the thumbnails overview