( 75 ) 



pure white and the tail chiefly bluish-black ; but the middle pair of rectrices is always 

 more or less washed with bronze-green, and the outer tail-feathers are, as a rule, 

 more distinctly tipped with greyish-green or wliitish-grey. Several examples, 

 however, are scarcely distinguishable on tliis score. 



The range of A. a. nigricauda, thus far known, is as follows : 

 Eastern Brazil : Bahia (many specimens in Mus. Tring, H. v. Berlepsch, 

 Vienna, etc.), Peruambuco (one immature bird in Mas. v. Bcrlepscli) ; Minas 

 Geraes : Uiamaiitina (Gouuelle *} ; Goyaz : llio Thesonras, Leopoldina (Baer), 

 Aragnay (Natlerer); Northern S. Paulo: Barretos on the Rio Grande (Garbe); 

 Mattogrosso : Cityaba, 8angradonro, Engenho do Cap. Gama, Caipara, Villa Bella 

 de Mattogrosso (Natterer) ; Eastern Bolivia : Mojos (D'Orbigny). 



126. Chlorostilbon aureoventris puclierani (Bourc. & Muls.). 



[Ornhmya aiiren-veiilris Lafresnaye and D'Orbigny, Sijn. »1 1\ ii. in M<i</. Zool. 1838. cl. ii. p. '28 (Moxos 



and Cochabamba, Bolivia).] 

 Trochilus Pucherani Bourcier and Mulsant, Rev. Zool. 1848. p. 271 (" le Br^sil "). 



Nos. 1906, 2028. SS ad., Goyaz, March 1906.— Wing 50, 51; fail 32; 

 bill 16f mm. 



As regards colour these birds agree very well with skins from llio de Janeiro. 

 Like the latter they show a distinct bluish tinge on the throat, but are somewhat 

 larger, and the bill is rather stronger and longer. Whether these trifling 

 differences are of any importance cannot be decided without a larger series 

 from Goyaz. 



Although established upon immature birds, it seems pretty certain that 

 T. pucherani refers to the Rio form of the aureoventris-gmwj). I have examined 

 one of the types, a young male, in the Paris Museum. Chlorostilbon wiedi f 

 Bone, of which I have likewise studied the types, was based on "Rio" 

 skins. 



127. Thalurania eriphilej baeri Plellm. 



Thabtraiiia eriphile baeri Hellmayr, BtilL B. 0. C. xxi. p. 27 (Nov. 1907. — Goyaz). 



Thalurania eriphile (not of Lesson) Pelzeln, Ziir Orn. Bras. i. 1807. p. 30 (part. : Goiaz, Araguay, 



Engenho do Gama) ; Allen, Bull. Amer. ifiis. N. Y. v. 18?3. p. 123 (Chapada, Mattogrosso) ; 



Salvin, Cat. Birds Bril. Mus. xvi. 1892, p. 80 (part., specimens /.: — q : Chap.ada). 

 Oniismi/a furcakf{not of Gmelin) Lafresnaye et D'Orbigny, Si/n. Ar. ii. in ^falf. Znnl. 1838. cl. ii. 



p. 27 (part. : Chiquitos and Moxos, Bolivia). 



Nos. 1723, 1829, 1748. iS ad., Faz. Esperanga, 

 January, February 1906 .... 



No. 2290 fe. c? ad., Leopoldina, July 1906 



Nos. 1630, 1907, 1910, 1911, 1912, 1074, 2060, 

 2073, 2100. i i ad. et imm., Goyaz, Decem- 

 ber 1905, March, April 1906 



No. 1913. S jnv., Faz. Esperan^a, March 1906 . 



No. 1835. ? ad., Goyaz, I\rarch 19U6 



* Mens. Gounelle, ot Taris, possesses a fine series collected by himself in the catinga woods of 

 Diamantina. 



t Gri>. Ihmminij Birds, 1894. p. 120. 



X Ornismya eriphile Lesson, Hist. Nat. Colibris suppl. p. 14N. tab. 25 (1832. — "da BrSsil"). 



