

^^eparimcnf of ihc inferior: 



U. S. NATIONAL MUSEUM. 

 Serial Number 42 



3/ 



BULLETIN 



OF THE 



UNITED STATES NATIONAL MUSEUM, 



No. 33 



PUBLISHED UNDER THE DIRECTION OF THE SMITHSONIAN INSTITUTION. 



^Ofl^ Mi;s^i^ 



WASHINGTON-: 



GOVERNMENT PRINTING OFFICE, 



1887, 



