Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Histocidaris formosa (aboral) Description Aboral side: The primary spines are long and slender being more or less widened distally.Diameter 71 mm; Siquijor, Philippines. Author Schultz, Heinke JPG file - 86.80 kB - 945 x 1 120 pixels added on 2011-02-23215 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke Click here to return to the thumbnails overview