Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Hygrosoma hoplacantha (aboral) Description Aboral side: There are only a few large primary tubercles, mostly near the ambitus.Diameter 196 mm; Kumano-nada, Japan. Author van Noordenburg, Henk JPG file - 295.90 kB - 909 x 968 pixels added on 2011-02-23239 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 van Noordenburg, Henk Click here to return to the thumbnails overview