ff 



Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



VOL. LII. No. 17. 



THE ECHINODEIIMS OF PERU. 



- T. J<1 NCAID 



6 S~ 



BY HUIJERT LYMAN; CLAUK. 



WITH FOURTEEN PLATES. 



CAMBRIDGE, MASS., U.S.A.: 

 PRINTED FOR T~^E MIJSEUM. 



OCTOREtt, l.QJW. 



