368 MESSRS. SCLATER AND SALVIN ON [Apr. 4, 



Anas antarctica, Gm. S. N. i. p. 505 (1/88) (Tierra del Fuego) ; 

 Schl. Mus. des P.-B., Anseres, p. 98. 



Bernicla antarctica, Steph. Shaw's Zool. xii. p. 59 ; Eyton, Mon. 

 Anat. p. 84 (1838); Darwin, Voy. Beagle, iii. p. 134 (1841) 

 (Tierra del Fuego, Falkland Islands) ; Less. Voy. Coq. t. 50 ; Gay, 

 Fauna Chil. p. 442 (1848) ; Reich. Natat. lvii. f. 397, 948 ; Bibra, 

 Denkschr. Akad. Wien, v. p. 131 (Chili); cf. J. fur Orn. 1855, 

 p. 57; Cassin, Gilliss's Exp. ii. p. 200, t. xxiii. (1856) (coast of 

 Chili); 1860, p. 388 ; 1867, pp.320, 334, 339; Gould, P. Z. S. 

 1859, p. 96; Scl. & Salv. Ibis, 1869, p. 284 (Port Otway) ; 1870, 

 p. 499 (Goods Bay); Nomencl. p. 128; Abbott, Ibis, 1861, p. 159 

 (Falkland Islands); Burm. La Plata-Reise, ii. p. 514, et P. Z. S. 

 1872, p. 366; Ph. & Landb. Wiegm. Arch. 1863, p. 199, et Cat. 

 Av. Chil. p. 40. 



Tceniadestes antarctica, Bannister, Pr. Ac. Phil. 1870, p. 132. 

 Anas hybrida, Mol. Storia, p. 213 (?) ; Gm. S.N. i. p. 502 

 (1788), ex Molina. 



Anas magellanicus, Sparrm. Mus. Carls, t. 37. 



Mas alba; rostro ?iigro, pedibus fiavis : long, tola circ. 24 "0, alee 



1 5*0, caudce 5"2, rostri a rictu 1*7, tarsi 3, dig. med. cum ungue 



3 - 5 (Descr. exempl. vix adult, ex ins. Falklandicis in Mus. 



S. & G.). Fern, brunneo-nigra ; vertice et nucha brunneis, 



fronte, capitis lateribus et collo albo vermiculatis ; dorso postico, 



nropygio et cauda alb is ; primariis nigris, secundariis et tectri- 



cibus alarum minoribus cum subalaribus albis ; tectricibus 



majoribus viridescente extus terminatis, speculum alar e for man- 



tibus : subtus pectore hypochondriis et ventre summo distincte 



albo transfasciatis, ventre imo cum crisso albis : long, tota circ. 



24*0, alee 14"0, caudce 5*3, rostri a rictu 1*7, tarsi 2*7, dig. 



med. cum ungue 3*2 (Descr. exempl. ex ins. Falklandicis in 



Mus. S. & G.). 



Hab. Tierra del Fuego {Forster, Darwin, Cunningham} ; Straits 



of Magellan to Chiloe {Darwin, Philippi fy Landbeck) ; Patagonia 



{Burmeister, Hudson) ; Falkland Islands {Darwin, Abbott). 



This is one of the oldest known species of South-American Ana- 

 tidce, being alluded to by Forster and also apparently by the Abbe 

 Molina, as well as in Pernety's 'Voyage.' The remarks of the first 

 author led to the name given to it by Gmelin, by which it has since 



dorso imo et rectricibus fusco-nigris ; pedibus flavis: long, tot. circ. 24, alee 

 14*8, cauda 45, tarsi 3, dig. med. cum ungue 2*5, rostri a rictu 1*2. 



Hab. Straits of Magellan {King). 



Though the type specimen of this bird in the British Museum bears a general 

 resemblance to a male B. magellanica, we are by no means sure that it may 

 not ultimately prove to be merely an immature specimen of Bernicla antarctica, 

 the size of the bill corresponding more closely with that of the last-named 

 species. From this, however, it differs in having a black tail, and in other 

 minor characters. The specimen is evidently immature ; but not being able 

 to assign it positively to any other species, we leave it for the present to 

 stand as doubtful ; at the same time we think it more than probable that it 

 will eventually be found to belong to one of the above-mentioned Bemicles. 



