( 25 ) 



N.B. — The specimens from the Bt)lLviaii Andes agree in every respect with 

 those from Paraguay and Argentina. It will be remembered that the birds 

 obtained by D'Orbigny iu the plains of Chiqnitos, near the Brazilian frontier, 

 belong to the smaller, eastern form, C. g. cearensis. (Cf. supra, p. 23.) 



12. Stelgidopteryx ruficoUis ruficoUis (VieilL). 



Hirundo rujknllis Vieillot, Nouv. Diet. xiv. p. 523 (1817.—" Bresil ").♦ 



No. 2091. S ad., Goyaz, May 1906.— Wing 114 ; tail 57 ; bill 7A ram. 



Identical with specimens from Bahia and S. Panlo. Cf. my remarks in Nov. 

 Zool. xiii. 1906, p. 13. 



N.B.— I have examined the specimen (i) of S. uropygialis, said to be from 

 Bahia, t in the British Mnsenm. It really belongs to S. r. aequalis, and certainly 

 never came from Bahia, being of tlie nnmistakable make of the skins that are 

 sent to Europe from Northern Colombia (Carthagena, Baranqailla, etc.). 



13. Tachycineta albiventer (Bodd.). 



Hirundo albiventer Boddaert, Tahl. PI. Enl. p. 32 (1783.— ex Daubenton, PI. Enl. 546, fig. 2.— 

 Cayeisne). 



No. 2369. S vix ad., Rio Araguaya, August 1906.— Wing 107 ; tail 51 ; 

 bill 8f mm. 



Differs from a CJayenne specimen merely by having the white edges to the 

 greater wing-coverts and secondaries rather narrower. 



14. Progne tapera (Linn.). 



Hirundo Tapera Linnaeus, Syst. Nat. xii. 1. p. 345 [1766.— " America"— a-s typical locality fixed 

 East Brazil (ex Marcgrave). Cf. Berl. & Hart., Nov. Zool. vs.. 1902. p. 14]. 



No. 2236. c? ad., Rio Araguaya, June 1906.— Wing 131 ; tail 65; bill 11 mm. 

 Identical with specimens from Bahia and Bogota. 



15. Progne chalybea domestica (Vieill.). 



[Hirundo chahjhea Gmelin, Syst. Nat. 1. ii. p. 1026 (1788.— ex Brisson et Daubenton : Cayenne).] 

 Hirundo domestica Vieillot, Nouv. Diet. xiv. p. 520 (1817.— ex Azara, No. 300 : " )e Paraguay et la 

 riviere de la Plata"). 



Nos. 2204, 2215. SS ad., Rio Araguaya, June 1906.— Wing 140, 137 ; tail 77^, 

 77 ; bill 11 J, 11 mm. 



No. 2205. ? ad., Rio Araguaya, June 1906.— Wing 137 ; tail 77; bill 11 mm. 



No. 2206. ? jr., Rio Araguaya, June 1906.— Wmg 134; tail 73 ; bill 10| mm. 



Agreeing in size and colour with a large series from S. Paulo, Bahia, Paraguay, 

 and Buenos Ayres. 



• In JViiv. Zool. xiii. 190G. p. 13, by some unaccountable mistake, Vieillot's original description 

 is stated to have been based on Azara's No. 306 ex Paraguay. 

 t Cat. Birds Brit. Mus. x. p. 210, 



