M«T 



Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



Vol. L1I. No. 17. 



THE ECHINODERMS OF PERU. 



Bv Hubert Lyman Clark. 



With Fourteen Plates. 



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

 PRINTED FOR THE MUSEUM. 



October, 1910. 



