Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Amphipneustes bifidus (tube feet) Description External appendages: Penicillate tube feet with many finger-like digits are positioned in the oral ambulacra picking up food particles and directing them into the mouth (upward).Scale 5 mm Author Schultz, Heinke JPG file - 244.91 kB - 941 x 1 236 pixels added on 2005-02-23326 viewsFrom reference Schultz, H. (2006). Sea urchins: A guide to worldwide sha... © 2005 Schultz, Heinke Click here to return to the thumbnails overview