344 NEW YORK STATE MUSEUM 



Left lateral view of the trunk skeleton of the Trumpeter swan 

 (Olor columbianus). Reduced about one half. Pygostyle 

 missing; shoulder girdle removed; otherwise the subject is perfect. 

 From a photograph by the author, it being a part of the skeleton of 

 the same individual from which the skull shown in plate I was 

 taken [U. S. Nat. Mus. Osteo. Dep't, Bird Series, spec no. 18509] . 



