

temoirs of % ÜAtstum ai Comparatib« ^oöfogn 



AT HARVARD COLLEGE. 

 Vol. XXX. No. 3. 



DIVISION OF FTSHES 

 U.S. NATION ~ 



REPORTS ON AN EXPLORATION OFF THE WEST COASTS OF MEXICO, 

 CENTRAL AND SOUTH AMERICA, AND OFF THE GALAPAGOS ISLANDS, 

 IN CHARGE OF ALEXANDER AGASSIZ, BY THE U. S. FISH COMMISSION 

 STEAMER " ALBATROSS," DURING 1891, LIEUT. COMMANDER Z. L. 

 TANNER, U. S. N., COMMANDING. 



XXXVI. 



EIN BEITRAG ZUR MORPHOLOGIE I 

 DES TIEFSEEFISCHGEHIRNES. 



Von EMANUEL TROJAN. 



MIT SECHS TAFELN. 



[Published by Permission of Marshali. McDonald and George M. BowEBa, U. S. Commissioners 



of Fish and Fisheries.] 



CAMBRIDGE, U. S. A. : 



^Irinteö fax tlje Jfluseum. 



OCTOBER, 1906. 



