A new integrated search interface will become available in the next phase of marineinfo.org.For the time being, please use IMIS to search available data PeopleInstitutesProjectsData setsPublicationsEvents IMIS Photogallery » ReferencesSperosoma biseriatum (aboral, close-up)Description Close-up of upper side. The large adapical demiplates are in broad contact with the outer suture, the adoral demiplates are small and occluded from both sides. The primary plate usually does not reach the outer suture, only exceptionally spreading over the whole area (see drawing)Scale c. 10 mm.Author Schultz, HeinkeJPG file - 140.34 kB - 827 x 606 pixelsadded on 2011-02-23220 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de...© 2011 Schultz, HeinkeClick here to return to the thumbnails overview