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



(Cuba); Scl. & Salv. Ibis, 1859, p. 231 (Guatemala) et Nom. Av. 

 Neotr. p. 136; Scl. P. Z. S. 1859, p. 393 (Mexico); Lawr. Mem. 

 Boston Soc. N. H. ii. p. 315 (Mexico). 



Bizutra rubida, Schl. Mus. des P.-B., Anseres, p. 11 , 

 Jamaica Shoveler, Lath. Syn. iii. pt. 2, p. 513, unde 

 Anas jamaicensis, Gm. S. N. i. p. 529 ; Lath. lad. p. 857, et 

 Vieill. Enc.Meth.p. 127 (1823) (?). 



Hub. Cuba {Gundlach) ; Mexico, Oaxaca (Boucard) ; Tepic 

 \Grayson) ; Guatemela, Lake of Diieiias (Sa/vin). 



Although certainly resident in Cuba, this is a rare species. Dr. 

 Gundlach has found it only in the neighbourhood of Havana. 

 Salvin met with it breeding on the Lake of Duefias iu Guatemala, 

 where it is the only Duck resident throughout the year. He ob- 

 served that it diminished in numbers during the period of the spring 

 migration. It builds in May amongst the reeds on the margin of 

 the lake, making a nest of dead flag with a little down. The eggs 

 are rough in texture, and much resemble those of the European 

 ^. mersa. 



2. Erismatura ferruginea. 



■\ 



Erismatura ferruginea, Evton, Mon. Anat. p. 170 (1838) (Chili) ; 

 Gray, List GalHna; &c. (1844), p. 146; Gray & Mitch. Gen. B. 

 t. 169 (1844) ; Bridges, P. Z. S. 1843, p. 11 9 (Lake of Quintero, 

 Chih); Gay, Fkun. Cliil. p. 458 (1848); Bibra, Denksch. Ak. 

 Wieu, V. p. 131, et J. fiir Orn. 1855, p. 57 ; Cassin, GiUiss's Exp. 

 ii. p. 204; Phil. & Landb. Cat. Av. Chil. p. 43, et 1872, p. 549 

 (Bio Negro); Scl. P. Z. S. 1867, p. 335 (Chih) ; Scl. & Salv. P. Z. S. 

 1868, p. 177 (S. Peru), et Nom. Av. Neotr. p. 131; Burm. P. Z. S. 

 1872, p. 369 ; Taczanowski. P. Z. S. 1874, p. 554. 

 Biziur a ferruginea, Schl. Mus. des P.-B., Anseres, p. 10. 

 Erismatura vittata. Ph. & Landb. Wiegm. Arch. 1860, p. 26 

 (Chili) ; Scl. P. Z. S. 1867, p. 335. 



Erismatura cyanorhyncha, Licht. M.S. (teste Burmeister). 

 Supra castanea, capite et collo toto nigris ; alls et cauda fuscis ; 

 subtus sordide alba, fusco irrorata, pectore et hypochondriis 

 castafieis corpore concoloribus ; rostro cceruleo, pedibus fuscis : 

 Jong, tota 160, alcB 55, caudce 3*8, tarsi 1*2, rostri a rictu 1*6. 

 Fem. fusca, cervino (jprcecipue in dorso et jnleo) irregulariter 

 transfasciata ; vitta suboculari albida ; subtus sordide alba, 

 fusco (jjrcEcipue in pectore et in hypochondriis) transvittata. 

 Hub. Central Vern {Nation, Jelski) ; S. Peru {Whitely); Chili 

 {Bridges, Phil, et Landb.) ; Buenos Ayres {Burm.) ; Rio Negro 

 ( Hudson) . 



This Erismatura was first obtained iu Chili by Mr. C. Crawley, 

 and described by Eyton from his specimens in the British Museum. 

 Philippi and Landbeck state it is common on all the lakes of the 

 Central Provinces. They at one time described the female as of a dif- 

 ferent species {E. vittata), but subsequently acknowledged their error 

 (see P. Z. S. 1868, p. 531). From Chili this species spreads north- 



