.b/m ruf'nia Pallas. 
Jistjilarh cristala Olplic-Galliard. 
Ked-crcsted Ditck, Rod-ercstcd Pochard, 
^jc^. Rnfotis-crestcd Duck. 
^m-^M^^-yr^^ y^f^v^Em^m^- iJMfc'MiJ-fife- '54i-i:l:'|^iftOf.ra^ 
Stibt". 5. Anatinae ( Prcsh-water Ducks, Rivcr 
& Pond Ducks, Typical Ducks). 
m 3S ^4 
^ >/ 7- ^ ^ :^ y tS^Jc-^ M ^ f/^ -^i 7 titj b 
tt-)!^ - icti - ? «S - fflU • « - r /v^^)^; 7 Pf-l-jif^ - III 55?-^!- - J:fc r 
^^'ci^'y- mW.^^^Wr^^iw^i^i' y y^- '^r '^Vs y^ ^ > ^ r^t ? . 
il ^ HI ii * f 2 ^ ^ PJ ± I'i)] 
61. Heteronetta atricapilla (Merrem) 
//. mclanoccphala Salv. 
I, l?^>J, Uruguay ^ t* Argentina. 
62. Stictonetta naevosa (Gould.) 
