372 messrs. sclater and salvin on [Ap r - 4, 



Ganso bianco, Az. Ap. no. 43G (La Plata), uncle 

 Anser candidus, Vieillot, N. D. xxiii. p. 331 (1816), et Enc. 

 Meth. p. 351 (1823). 



Coscoroba Candida, Reich. Nat. Syst. d. Vog. p. x. 



Albns ; prima riorum apicibus nigris ; loris phimosis ; rostro lato 

 anatiformi ruberrimo, ungue cameo ; hide fere nigra; pedibns 

 rubro-carneis (ave viva) : long, tola circ. 400, alee 175, caudce 

 5"8, rostri a rictu 30, tarsi 3'5, dig. med. cum ungue 5"0 

 (Descr. exempl. ex Chilia in Mus. S. & G.). 



Hab. Chili (Molina, Gay, PhUippi &• Landbeck) ; Straits of Ma- 

 gellan (King, Cunningham) ; Falkland Islands (Abbott) ; Buenos 

 Ayres (Azara, Burmeister). 



Bunneister observed the Coscoroba Swan in large numbers on the 

 rivers Parana and Salado, especially in the lagoons bordering the 

 river near Santa Fe. During the winter, he says, it keeps in flocks 

 like our Swan. He also observed it at Mendnza and in the large 

 lakes of the Pampas. 



Azara met with only two individuals of this species in Paraguay, 

 and a small flock at about 28° S. lat. He says, however, that 

 it abounds in enormous flocks in the lagoons bordering the La 

 Plata. 



The Coscoroba Swan is rare in Chili, according to Philippi and 

 Landbeck, who, however, give no details respecting its range on the 

 western coast, though they mention a young one having been brought 

 to them from the Straits of Magellan. 



Mare harbour is the only part of East Falkland where Capt. Ab- 

 bott ever saw or heard of this species. At that spot there is usually 

 a flock of eight or ten to be seen. They breed in the neighbourhood, 

 young birds of about a month old having been observed. 



Living specimens of this Swan were brought to England in 

 1870 and 1871, but as yet have not reproduced. A pair made a 

 nest in the Society's Gardens ; and eggs were laid in 1872, but no 

 young birds were hatched. 



Subfamily III. Anatin^e. 



Genus 1. Dendrocygna. Type. 



Dendronessa, Wagl. Isis, 1832, p. 281 (nee Sw.). . D. arcuata. 



Dendrocygna, Sw. Class. Birds, ii. p. 305 (1837). D. arcuata. 



Leptotarsis, Eyt. Mon. Anatinse, p. 29 (1838) . . D. eytoni. 



This genus is a good example of what may be called a Tropico- 

 politan group, being represented nearly everywhere within the tropics. 

 In America four very distinct species are found, besides another that 

 is scarcely more than a representative form. 



1. Dendrocygna fulva. 



Penelope mexicana, Briss. vi. p. 390 (Mexico), unde 

 Anns fuha, Gm. S. N. i. p. 530 (1788); Vieill. Enc. Meth. 

 p. 136 (1823); Max. Beitr. iv. p. 918; Wagl. Isis, 1831, p. 532; 



