Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



Vol. XLIII. No. 2. 



REPORTS ON THE DREDGING OPERATIONS OFF THE WEST COAST OF 

 CENTRAL AMERICA TO THE GALAPAGOS, TO THE WEST COAST 

 OF MEXICO, AND IN THE GULF OF CALIFORNIA, IN CHARGE OF 

 ALEXANDER AGASSIZ, CARRIED ON BY THE U. S. FISH COMMIS- 

 SION STEAMER "ALBATROSS," DURING 1891, LIEUT. COMMANDER 

 Z. L. TANNER, U. S. N., COMMANDING. 



xxxni. 



STEIX-UXD IIYDKO-KORALLEX. 



Von Emil vox IMakexzeller. 



[Publishctl by Permlaslon of Marshall JIcDoxald and Geohob M. Bowers, 

 U. S. Fish Commissioners.] 



With Thhee Plates. 



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



PRINTED FOK THE MUSEUM. 



August, 1904. 



