m r & m m j # m 
Order ANSERIFOKMES JJg lfl| 0 
Suborder ANSERES )((([ Ijfi ^ (1 
Family ANATIDiE tg fl 
Subfamily [. Chenonettanae 
,, II. Anserinae 
Fam. ANATIDiE 
hi m 
m ss ?i- 
III. Cereopsmae 
IV. Mectroptermae gg^ffllSS^ 
V. Anseranatinae ^igiJflliS^ 
YL O/gninae 
5S 
Chenonettinae 
s ^ ; ^ §i m 
"8- ^.B. f ttlE / RE / m = Bfgl * 
(2) mt-^mmisWiMi-v 
(2') fi^ft^S*^^ 
(2") NR^OM^ 
(2'") &&fc ~ffc y £ * 5 x\ Jt$M® 
( 2"" ) \% =. j<$$| ? * Anserinae 
(3"") vft / 3£$S - rj Cereopsinae 
(3'") mt^m v. nM~ycm>}&? w^m 
?mm->-±%\>^ki$frftW->' 9 Plectropterinac 
