Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Rhynobrissus tumulus (aboral) Description Aboral side. The anterior pair of petals extend horizontally to the sides.Length 41 mm; Broome, Western Australia. Author van Noordenburg, Henk JPG file - 165.09 kB - 900 x 1 089 pixels added on 2009-02-23188 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 van Noordenburg, Henk Click here to return to the thumbnails overview