UlUnujirs of the jttuscum of (Lompiuttoe Zoology 



AT HARVARD COLLEGE. 



Vol. X. No. 1. 



11 E P R T 8 



RESULTS OF DREDGING, 



UNDER THE SUPERVISION Or 



ALEX A N D E R A G A S S I Z, 



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

 ALONG THE ATLANTIC COAST OF THE UNITED STATES (It 



U. S. COAST SURVEY STEAMER "BLAKE," 



LlECT.-Co-M. C. D. SlGSBEE, U. S. X., IMi COMMANDED J. K. 15 MM LETT, L". S. X , COMMANDING. 



XXIV. Part I. 

 Report on the Echini, By Alexander Agassiz. 



(Published by permission of Caklile 1'. Patterson and J. E. II 1 1.<: vri>. Superintendents 



U. S. Coast and Geodetic Survey, i 



WITH THIRTY-TWO PLATES. 



CAM BRIDG E: 



13rintclJ for Hie ffluscum. 

 September, 1888. 



