'^ l^O^i 



Umoirs of ibc Iftusjum of dlomjmratibe icoologg 



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), 



BY THE 



U. S. COAST SURVEY STEAMER "BLAKE," 



Lieut .-Com. C. D. Sigsbee, 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.: 



$rtnteo for tlje Jluseum. 

 April, 1912. 



