Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Amphipneustes bifidus (spines) Description The spines end distally in two glassy (hyaline) peaks. The shaft is finely ridged.Scale 1 mm. Author Schultz, Heinke JPG file - 24.62 kB - 472 x 494 pixels added on 2009-02-23345 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 Schultz, Heinke Click here to return to the thumbnails overview