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Show 636 DR. H. BURMEISTER ON ARGENTINE ORNITHOLOGY. [Dec. 10, 11. ANABATES LOPHOTES. Anabates lophotes, Bp. Consp. i. 210. A. cristatus, D'Orb. Voy. Ois. 258. A. unirufus, Burm. Reise d. d. La Plata-Staaten, ii. 466. Before I had seen the true Anabates unirufus, D'Orb., from the interior of Bolivia, I had taken this bird of the Argentine Republic for that species; but now, having under m y inspection two true A. unirufus, I see the difference. The A. lophotes is larger, not entirely cinnamon red-brown, but more greyish red-brown, and dark brown on the vertex, where the feathers are longer and narrower. Only the tail and the anal portion of the trunk are entirely red-brown. This species lives in the interior near Cordova, S. Luis, La Riaja, and has never been observed near Buenos Ayres. D'Orbigny shot an individual in the province of Santa Fe; but this, without doubt, is a rare occurrence, as I never observed the bird near Parana. 12. LlMNORNIS CURVIROSTRIS. Limnornis curvirostris, Gould, Zool. of the Beagle, iii. 86, t. 25. Not rare in the sedge of the shores of the Rio de La Plata, near Buenos Ayres. 13. SYNALLAXIS SPIXIT. Synallaxis spixii, Sclater, Proc. Zool. Soc. 1856, p. 98, 1859, p. 192; Cat. A. B. p. 151. Parulus ruficeps, Spix. Synallaxis albescens, nob. Syst. Uebers. iii. 39. 2. This species is also found in the vicinity of Buenos Ayres; but I have never seen it in the interior of the eastern side of the country, near Parana, where I found Synallaxis ruficapilla in abundance. 14. SYNALLAXIS SULPHURIFERA, nob. S. supra olivaceo-fusca, subtus albido-lutescens,- superciliis gulaque albis, hac macula parva sulphurea: long. 6". This species has the longer and rather curved beak of S. striaticeps, but the broad and long pointed tail-feathers of S. spixii. The whole upperside is obscure ochraceous, and over the eyes is a white line. The underside on the throat white, with a small sulphur-yellow spot in the middle; the breast and body beneath pale loamy yellow ; the sides of the neck and cheeks striped with white. Wing-coverts red-brown, also the margin of the longer remiges; but the middle ones without these margins, forming a dark stripe over the wings. Tail-feathers ochraceous, the outer ones more of a red-brown ; the tip of every one more or less mutilated, rather large and the two middle elongato-acuminated. Beak and legs brown, the under mandible at the base whitish. This bird is found near Buenos Ayres, in the sedge of the river-shores. |