Bulletin of the Museum of Comparative Zoology 

 AT HARVARD COLLEGE. 



Vol. XLIII. No. 3. 



REPORTS ON THE DREDGING OPERATIONS OFF THE TVEST 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 C0M:MIS- 

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

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



XXXIV. 



LAGISCA IRRITANS, SP. NOV., EIN SYMBIONT 

 VON HYDROKORALLEN. 



Von Emil vo\ Makknzeller. 



[Published by Permlgslon of Marshall McDonald and George M. Bowers, 

 U. S. Fieh Commissioners.] 



With One Plate. 



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



PRINTED FOR THE MUSEUM. 



August. lOOi. 



