Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Nacospatangus tylotus (aboral) Description Aboral side: There are two to four large primary tubercles arranged in a row just above the ambitus.ZMUC Author Schultz, Heinke JPG file - 159.21 kB - 880 x 1 024 pixels added on 2009-02-23256 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 Schultz, Heinke Click here to return to the thumbnails overview