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 » ReferencesSphaerechinus granularis (interambulacrum + ambulacrum)Description Close-up of interambulacrum and adjacent ambulacrum: The primary tubercles form two regular vertical series, the secondaries are equal-sized. The pore-pairs in the ambulacra are arranged in arcs of four or five.Scale 10 mm.Author Schultz, HeinkeJPG file - 344.03 kB - 1 417 x 1 063 pixelsadded on 2005-02-23768 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha...© 2005 Schultz, HeinkeClick here to return to the thumbnails overview