Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Argopatagus aculeata (peristome + periproct) Description c. Peristome overarched by the lip. d. PeriproctLength 120 mm; found only east of the Cocos Is., east Pacific, 1820m. Author Agassiz, Alexander JPG file - 102.80 kB - 602 x 827 pixels added on 2009-02-23233 viewsFrom reference Schultz, H. (2009). Sea urchins II: Worldwide irregular d... © 2009 Agassiz, Alexander Click here to return to the thumbnails overview