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 » ReferencesCoelopleurus (spines + ambulacral tubercles)Description Left: C. maculatus: The cross-section of the primary spines is triangular. Right: C. undulatus: The ambulacral primary tubercles decrease in size towards the apical system.Left: Scale 0.5 mm; Right Scale 5 mm.Author Mortensen, TheodorJPG file - 112.33 kB - 945 x 488 pixelsadded on 2011-02-23502 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de...© 2011 Mortensen, TheodorClick here to return to the thumbnails overview