Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Goniocidaris (Goniocidaris) umbraculum (apical system) Description Apical system: The gonopores of the female extend into the adjacent interambulacra.Scale 2 mm. Author Schultz, Heinke JPG file - 143.11 kB - 945 x 915 pixels added on 2005-02-23210 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview