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Show 1869.] BIRDS F R O M T H E ARGENTINE REPUBLIC. 635 tainly the bird described by Azara and Bonaparte as above quoted. W e are, however, inclined to doubt very much whether this is really the young of A. erythromelas, as referred by Bonaparte, Burmeister, and other authors ; and prefer waiting for other examples before arriving at a definite conclusion upon this point. We are not at present able to distinguish the so-called A. erythromelas (adult) from A. exilis of North America. 30. IBIS CAERULESCENS, Vieill. Ibis plumbea, Temm. Pl. Col. 235 ; Burm. I. c. p. 510. One skin of this species. 31. DENDROCYGNA FULVA. Anas fulva, Gm. S. N. i. p. 530; Wagl. Isis, 1831, p. 532. Dendrocygna fulva, Baird, B. N. A. p. 771, t. 63. Anas virgata, Max. Beitr. iv. p. 918 ; Burm. Syst. Ueb. iii. p. 435, et La Plata-Reise, ii. p. 514. Dendrocygna fulva et D. virgata, Sclater, P. Z. S. 1864, p. 301, et 1866, p. 149. A good skin of this species, which we have compared with a Mexican specimen, and find to be undistinguishable. 32. QUERQUEDULA BRASILIENSIS (Gm.). Anas brasiliensis, Gm. S. N. i. p. 517; Max. Beitr. iv. p. 936 ; Burm. La Plata-Reise, ii. p. 517. Two skins. "Pato portuguese, found in pairs." 33. QUERQUEDULA TORQUATA. Pato collar negro, Azara, Apunt. iii. p. 452. Anas torquata, Vieill. N. D. v. p. 110, et E. M. p. 355 ( S )• Querquedula torquata, Gray, Gen. iii. p. 616, et List of Gall. (1843) p. 139; Hartl. Ind. Az. p. 28 ($). Pato ceja blanca, Azara, I. c. p. 453 ( $ ). Anas leucophrys, Vieill. N.D. v. p. 156, et E. M. p. 355 ; Hartl. Ind. Az. p. 28 ; Gray, Gen. iii. p. 616 ( $ ). Two males and one female of this fine duck, of which we have only previously seen the pair in the British Museum. Azara's Pato ceja blanca, which has puzzled Hartlaub and others, is certainly the female. This sex differs from the male in the absence of the dark chestnut on the scapularies, which are of a dull brown, in the brown head and nape, in the absence of the black collar, and in the pure white throat and irregular superciliary stripe. The breast is mottled with brown, instead of being of a salmon-colour with distinct round black spots. The flanks are white, with brown mottling, instead of being white minutely freckled with grey. 34. MARECA CHILOENSIS (King). Anas chiloensis, Burm. La Plata-Reise, ii. p. 517. Two examples of this species. |
