SMITHSONIAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 



BULLETIN 82 



A MONOGRAPH 

 OF THE EXISTING CRINOIDS 



BY 



AUSTIN HOBART CLARK 



VOLUME 1 

 THE COMATULIDS 



PART 4b SUPERFAMILY MARIAMETRIDA (concluded the family 



Colobometridae) and SUPERFAMILY TROPIOMETRIDA 



(except the families Thalassometridae 



and Charitometridae) 



UNITED STATES 



GOVERNMENT PRINTING OFFICE 

 WASHINGTON : 1947 



For tale by the Superintendent of Document!, U. S. Government Printing Office, Washington 25. D. C. 



Price ?2.75. 



