1868.] ON BIRDS FROM CONCHITAS. HI 



28. Synallaxis albescf.ns (Temm.). 



One skin, marked "very scarce," agreeing with South-Brazilian 

 examples of this species. Burmeister's S. ruficapilla {I. c. p. 468) 

 is probably the same bird; but the true S. ruficapilla {TiexW.) seems 

 to be the Brazilian species with the whole head and tail rufous. See 

 Sclater, P. Z. S. 1856, p. 97. 



29. Synallaxis malurotdes (D'Orb.). 

 Not noticed by Burmeister. 



30. Synallaxis anthoides. King. 



Not mentioned by Burmeister. " Resident : lives on the ground." 



31. Anumbius acuticaudatus (Less.) ; Burm. /. c. p. 467. 



32. Placellodomus ruber (Vieill.) ; Burm. I. c. p. 467. 



33. Limnornis curvirostris, Gould, Zool. Voy. Beagle, iii. 

 p. 81, t. 25. 



Two skins of this rare species originally obtained by Darwin from 

 reed-beds in the vicinity of Maldoaado. Not mentioned by Bur- 

 meister. 



34. Thamnophilus argentinxjs, Cab. ; Burm. l. c. p. 472. 



" Summer visitor." Three skins of this species, representing the 

 Brazilian Th. torquatus. The female has the tail rufous, and no 

 cross bands on the body below. 



35. Myiotheretes rufiventris (Vieill.). 



Not mentioned by Burmeister, but obtained by Mr. Darwin at 

 Maldonado and Bahia Blanca, and in Sclater's collection from the 

 Parana. 



36. T^nioptera coronata (Vieill.) ; Burm. I. c. p. 459. 



37. T^nioptera irupero (Vieill.). 

 T. moesta, Burm. I. c. p. 460. 



38. SisopYGis icterophrys (Vieill.). 

 Tcenioptera icterophrys, Burm. /. c. p. 460. 



" Summer visitor." Sexes, as marked, alike. 



39. LiCHENOPS PERSPiciLLATUS (Gm.) ; Burm. I. c. p. 457. 

 Three specimens of this bird in black plumage, and two in the 



rufous plumage {L. erythropterus), which Mr. Darwin* considers 

 to be a distinct species, but which is usually regarded as the same 

 bird in female dress. Two of Mr. Hudson's black-plumaged birds are 

 marked/e?«tfZe5 ; but so are also both his red-plumaged ones, so that 

 we can offer no additional evidence upon this disputed point. We 

 * Zool. Voy. Beagle, iii. p. 52. 



