Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Heterobrissus hystrix (labrum) Description Labrum and adjacent plates: The ambulacral plates beyond the phyllodes are fully tuberculated like the labral and sternal plates.Scale 10 mm. Author Mortensen, Theodor JPG file - 74.35 kB - 591 x 499 pixels added on 2009-02-23205 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 Mortensen, Theodor Click here to return to the thumbnails overview