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 » ReferencesPhyllacanthus irregularis (ambulacrum, close-up)Description Close-up of ambulacrum: The pores of each pair are connected by a shallow furrow, they are conjugate. The interporiferous zone is densely packed with small tubercles, the marginal tubercles are more or less larger, forming an irregular row at each side.Scale 5 mm. Negros, Philippines.Author Schultz, HeinkeJPG file - 241.48 kB - 1 417 x 1 044 pixelsadded on 2005-02-23293 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha...© 2005 Schultz, HeinkeClick here to return to the thumbnails overview