Bulletin of the Museum of Compa^f-tivt Zoology 

 AT HARVARD ODl^LEUE. 

 Vol. XLVL :No.^ik'^ 



REPORTS OX THE SCIENTIFIC RESULTS' OF THE EXPEniTION TO THE 

 EASTERN TROPICAL PACIFIC, IN CHARGE OF ALEXANDER AGASSIZ, 

 BY THE U. S. FISH COMMISSION STEAMER "ALBATROSS," FROM 

 OCTOBER, 1904, TO MARCH, 1905, LIEUT. COMMANDER L. M. GARRETT, 

 U. S. N., COMMANDING. 



IV. 



O C T A C IST E M U S . 



By William E. Kitt&r. 



[Published by Permission of George M. Bowers, U. S. Fish Commissioner.] 



With Three Plates. 



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

 PRINTED FOR THE MUSEUM. 



Jantaky, lOOG. 



