Data PolicyPublications | Institutes | Persons | Datasets | Projects | Maps IMIS Photogallery » References Irregularia (periproct) Description The periproct is at the posterior end of the test.Scale 10 mm. Author Schultz, Heinke JPG file - 204.98 kB - 727 x 1 230 pixels added on 2005-02-231 778 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview