Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Histocidaris sharreri (ambulacral plates) Description Part of ambulacrum at the ambitus. The marginal series of tubercles is fairly regular. The extrascrobicular zone is narrow along the adradial border.Scale 5 mm. Author Schultz, Heinke JPG file - 71.07 kB - 430 x 591 pixels added on 2011-02-23211 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke Click here to return to the thumbnails overview