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 » ReferencesHolopneustes (ambulacra)Description In Amblypneustes (left) the primary tubercles in the ambulacra (A) from a regular vertical row, one tubercle is associated to each triad of pore-pairs. In Holopneustes (right) they are irregularly arraged, often only on every second or third plate.Scale 5 mm.Author Schultz, HeinkeJPG file - 182.78 kB - 1 660 x 474 pixelsadded on 2005-02-23251 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha...© 2005 Schultz, HeinkeClick here to return to the thumbnails overview