PLATE Vn. 



[Bulletin Ko. 29, United States Kational Masenm.] 



Fig. 1. Anser segetum middendorffi, $ ad. U. S. Nat. Mus. No. 92824 ; Bering Island May 



10, 1883. 

 Fig. 2. Anser albifrms gamheli, 9 ad. U.S.Nat. Mus. No. 92826 : Bering Island, May 



10, 1883. 

 Fig. 3. Somateriav-nigra, $ ad. U. S. Nat. Mus. No. 92848 ; Copperlsland, July3,1883. 



