UNIVERSITY OP IOWA MONOGRAPHS 



BULLETINS FROM THE 



LABORATORIES OF NATURAL 

 HISTORY 



VOLUME VII NUMBER 5 



REPORT ON THE CRINOIDEA AND ECHINOIDEA 

 Collected by the Bahama Expedition 

 from the University of Iowa in 1893 



by 



Hubert Lyman Clark^ Ph. D. 



Museum of Comparative Zoology, Cambridge 



PUBLISHED BY THE UNIVERSITY 



