344 NEW YORK STATE MUSfeUM 



Left lateral view of the trunk skeleton of the Trumpeter swan 

 (O 1 r c o 1 u ni b i a n u s) . 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]. 



