Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Mortonia polyporus (oral) Description Oral side: The periproct is as large as the peristomme.Length 12 mm; Cook Strait, New Zealand.ZMUC / ZUMC Author Schultz, Heinke JPG file - 149.79 kB - 928 x 1 013 pixels added on 2009-02-23198 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 Schultz, Heinke Click here to return to the thumbnails overview