SMITHSONIAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 

 Bulletin 73 



AN ACCOUNT OF THE BEAKED WHALES OF THE FAMILY 

 ZIPHHD^ IN THE COLLECTION OF THE UNITED 

 STATES NATIONAL MUSEUM, WITH RE- 

 MARKS ON SOME SPECIMENS IN 

 OTHER AMERICAN MUSEUMS 



BY 



FREDERICK W. TRUE 

 Head Curator, Department vf Biology, U. S. National iVuseum 



per\ 





WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1910 



