18/6.] NEOTROPICAL ANATID.E. 381 



plumis axillaribus ulbis ; rostro obseuro, pedibus flams : long, 

 tota 2 1 *0, alee 1 TO, caudce 4'8, tarsi 1*9, rostri a rictu 2'3. 



Fern, mart similis, sed coloribus minus claris. 



Hab. Magellan Straits {King); Southern and Central Chili {Phil. 

 §• Landb.). 



This Duck is very remarkable for its conspicuous white patch on 

 each side of the face and pure white throat and neck, as well as the 

 large richly coloured alar speculum. So far as we yet know, it is 

 exclusively a western species. According to Philippi and Landbeck 

 it is common from the Straits of Magellan as lar north as Valdivia, 

 but is rare in the central provinces of Chili. 



4. Anas cristata. 



Crested Duck, Lath. Syn. iii. p. 543, unde 



Anas cristata, Gin. S. N. i. p. 540 (1788) (Statenland) ; Gay, 

 Faun. Chil. p. 449 (1848) ; Gould, P. Z. S. 1859, p. 96 (Falklands) ; 

 Scl. P. Z. S. 1860, p. 389 (Falklands), 1867, p. 335 (Chili) ; Abbott, 

 Ibis, 1861, p. 160 (Falklands); Ph. & Landb. Cat. Av. Chil. p. 41 : 

 Scl. & Salv. P. Z. S. 1867, p. 990 (Salinas, Peru) ; Ibis, 1870, p. 499 

 (Tuesday Bay), et Nomencl. p. 129; Schl. Mas. des P.-B. Anseres, 

 p. 39. 



Anas specularoides, King, Zool. Journ. iv. p. 98 (1838). 

 Anas purrhogaster, Meven, Nov. Act. xvi. Suppl. p. 119, t. xxv. 

 (Maipu, Chili). 



Dafila pyrrhog aster, Eyton, Mon. Anat. p. 1 13 (1838). 

 Supra terreno-fusca, colore pallidiore in dorso superiore varie- 

 gata ; pileo fuscescenti-nigro in cristam elongatam desinente ; 

 speculo atari lato cupreo-viridi, parte distali nigra, fascia ex- 

 terna alba terminata ; sub t us fusca, mayis rufescens et niaculis 

 indistinct is in pectore not at a ; crisso et subalaribus fere niyris, 

 harum plaga media alba ; rostri maxilla nigra, mandibida 

 flava, pedibus nigris: long, tota 20'0, alee lO'S, caudte 5*0, 

 rostri a rictu 2'1, tarsi 1*8, dig. med. cum ungue 'LA. 

 Hab. Falklands {Abbott) ; Magellan Straits {Cunn.) ; Chili {Ph. 

 fy Landb); S. Peru {Whitely). 



This species has a wider range than the last, extending northwards 

 into Southern Peru, where Mr. Whitely obtained specimens in 1867 

 at Salinas, a salt lake on the Cordillera, above Arerpuipa, at an altitude 

 of 14,000 feet. In Chili, Philippi and Landbeck tell us, it inhabits 

 the high cordilleras in summer, but descends during winter to the 

 plains, and is found along the coast down to the Magellan Straits, 

 where Dr. Cunningham obtained specimens. 



The Crested Duck is common everywhere on the Falkland islands, 

 mostly frequenting salt water, though occasionally seen near fresh- 

 water pools. Old birds are always found in pairs. They live upon 

 shellfish. They retire inland to breed ; and the duck lays five eggs, 

 in a nest covered with down. The eggs are laid from the beginning 

 of October to the beginning of November. 



The only near ally of this Duck in the Neotropical region is the 

 preceding species, from which it may be at once distinguished by the 



