170 



ERISMATURA FERRUGINEA. 



Eris. — Ferrugmea, capite atro. 



FERRUGINOUS DUCK. 

 Male, ferruginous duck, with the head black. 



IN. IN. 



Length 17| Tarsi 1| 



Bill lg Centre toe 2| 



Male: deep ferruginous, with the head and upper part of the neck black; quills and tail 

 brown ; vent and belly silvery ash, tinged with ferruginous. 



Closely allied to Erismatum Australis. The only specimen we have seen is in the British 

 Museum, obtained from Chili. 



ERISMATURA LEUCOCEPHALA. 



Eris. 'Sins. — Vertice atro ; subtus castaneus; reliquo albo. 

 Eris. Fem. — Mare similis, sed coloribus obscuris. 



WHITE-HEADED DUCK. 



Male duck, with the crown black ; remainder of the head white ; below chesnut. 

 Fem. similar, but with the markings obscure. 



IN. IN- 



Length 17 Outer toe 2f 



Bill If Centre toe 2| 



Tarsi 1| Inner toe 2| 



Male: crown black; remainder of the bead pure white ; body silvery brown, tinged with 

 ferruginous on the breast, flanks, and back, on the latter irrorated with black ; tail and wing;, 

 brown ; no wing spot ; legs and bill lead coloured ; the latter more taper at the base than is usual 

 in the genus. 



Fem. : similar to the male, but with the colours not so distinct. 



Anas leucocepkala Gmel. Syst. 1 . 51(3. 



Lath. Ind. On/. '.!. 858. 



Undina leucocephala Gould, Birds of Europe. 



. inas mersa Gmel. Syst. 1 . 521 1 



