ILLUSTRATED CATALOGUE 



OF THE 



MUSEUM OF COMPARATIVE ZOOLOGY. 



AT HARVARD COLLEGE. 



No. VII. 



REVISION OF THE ECHINI. 



r.Y 



ALEXANDER AGASSIZ. 

 PART III. 



WITH FORTY-FIVE PLATES. 



UNIVERSITY PRESS, CAMBRIDGE, 



w f. i. c h , n i r. 1: i. n w , & CO. 



1873. 



