1876.] NEOTROPICAL A>ATID.E. 395 



Salv. Ibis, 1859, p. 231 (Guatemala), Nomencl. Av. Neotr. p. 130 ; 

 Newton, Ibis, 1860, p. 308 (St. Thomas); Salv. Ibis, 1865, p. 193; 

 March, Pr. Ac. Phil. 1864, p. 71 (Jamaica) ; Leot. Ois. Trim p. 51 1 

 (Trinidad); Gundl. llepert. F.-N. i. p. 388, et J. fiir Orn. 1875, 

 p. 378 (Cuba) ; Lawr. Mem. Bost. Soc. N. H. ii. p. 315 (Mexico). 



Hab. Mexico (Grayson) ; Guatemala (Salvin) ; Cuba (Gundl.) ; 

 Jamaica (March); St. Thomas (Newton); Trinidad (Leotaud). 



The American Widgeon is said to be very common in Cuba during 

 the annual migration from September to April. In Jamaica, too, it 

 is to be seen in all its forms and variety of plumage. Mr. Riise 

 procured specimens in St. Thomas ; and Leotaud records it as a 

 regular winter visitant to Trinidad. In Central America it likewise 

 occurs in winter, having been found by Salvin in all the Guatemalan 

 lakes during that season. 



2. Mareca sibilatrix. 



Anas sibilatrix, Poeppig, Fror. Not. no. 529 (1829), p. 10 

 (Chili). 



Anas chiloensis, King, P. Z. S. 1830-31, p. 15 ; Burm. J. fiir Orn. 

 1860, p. 227, et La Plata-Beise, ii. p. 517 (Mendoza) ; Schl. Mus. 

 P.-B. Anseres, p. 46. 



Mareca chiloensis, Eyton, Mon. Anat. p. 117, t. xxi. (1838); 

 Hartl. Ind. Az. p. 27 "(1847) ; Gay, Faun. Chil. p. 44 7 (1848); 

 Cassia, Gilliss's Exp.ii. p. 201 (1856); Gould, P. Z. S. 1859, p. 96 

 (Falklands); Phil. & Landb. Cat. Av. Chil. p. 41 ; Scl. P. Z. S. 

 1860, p. 389 (Falklands); 1867, pp. 335 (Chili); 1870, p. 665 

 Chili; Scl. & Salv. P. Z. S. 1869, p. 635 (Rep. Arg.) ; Ibis, 1869 

 p. 284 (Gregory Bay), et Nomencl. Av. Neotr. p. 130. 

 Pato pico pequeno, Az. Apunt. no. 432 (Buenos Ayres). 

 Anas parvirostris, Merr. Ersch, u. Grub. Enc. sect. i. vol. xxxv. 

 p. 43 (1841). 



Supra nigra, in cervice albo transfasciata, dorsi et scapularium 



plumis albo utrinque marginatis ; pileo et genis pure albis, nucha 



et cervice postica viridi-purpureo lucentibus ; alisfuscis, tectri- 



cibus minoribus albis ; senundariis velutino-nigris ad basin albis; 



subtus alba, gutture et cervice antica nigricantibus, pectore supe- 



riore nigro albo transfasciolato, hypochondriisferrugineo lavatis; 



rostro et pedibus nigris : long, tota 20 - 0, alee 10*3, caudce 4*3, 



tarsi 1*4, rostri a rictu 1*6. Fern, main similis sed paulo 



obscurior. 



Hab. Paraguay (Azara) ; Buenos Ayres and Mendoza (Burm.) ; 



Falklands (Abbott) ; Chiloe (King) ; Valdivia and Central Chili 



(Phil, et Landb.). 



Azara was the original descriher of this fine Duck, from specimens 

 obtained in Buenos Ayres ; but Vieillot appears to have missed 

 giving any Latin appellation to the species ; and it was first provided 

 with a scientific name by Poeppig, who gave an excellent description 

 of it in his " Fragmenta Zoologica Itineris Chilensis," published in 

 Froriep's ' Notizen ' for July 1829. This was two years before 

 Capt. King's term chiloensis (usually employed for this species) ap- 



