







SMITHSONIAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 



Bulletin 82 



A MONOGRAPH OF THE EXISTING CRINOIDS 



BY 



AUSTIN HOBART CLARK 



Curator, Division of Echinoderms, 

 United States National Museum 



VOLUME 1 

 THE COMATULIDS 



PART 1 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 

 1921 



