Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Gracilechinus lucidus (aboral) Description Aboral side: The periproctal plates are dark purple.Diameter 47 mm; Shimizu, Japan. Author Schultz, Heinke JPG file - 144.78 kB - 856 x 846 pixels added on 2011-02-23255 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke Click here to return to the thumbnails overview