Umoirs of % Hhtseurn of Comoaratibe ^oblocrn 



AT HARVARD COLLEGE. 

 Vol. XXVII. No. 4. 



REPORTS 



ON THE 



RESULTS OF DREDGING. 



UNDER THE SUPERVISION OF 



ALEXANDER AGASSIZ, 



IN THE GULF OF MEXICO (1877-78), IN THE CARIBBEAN SEA (1878-79), AND 

 ALONG THE ATLANTIC COAST OF THE UNITED STATES (1880), 



BT THE 



U. S. COAST SURVEY STEAMER "BLAKE," 



LlEOT.-CoM. C. D. SlQSEEE, U.S.N., AND COMMANDER J. R. BaRTLETT, U. S. N., COMMANDING. 



XLV. 

 DIE COMATULIDEN. 



VON 



CL. HARTLAUB. 



[Published by Permission of Carlile P. Patterson and Otto H. Tittmann, Superintendents 

 of the U. S. Coast and Geodetic Survey.] 



WITH EIGHTEEN PLATES. 



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



f}rttttco for tlje ifiuscum. 

 April, 1912. 



