578 Mr. Charles Chubb on the 



is very expert, its small size giving it a decided advantage in 

 the matted undergrowth in which it lives. — W. F.~] 



122. EUSCARTHMUS MARGARITACEIVENTER. 



Tachuri par do vientre de perla Azara, Apunt. ii. p. 90. 

 no. clxxii. (1805). 



Todirostrum margaritaceiv enter D'Orb. et Lafr. Syn. Av., 

 Mag. de Zool. 1837, p. 46 (Bolivia). 



Euscarthmus margaritaceiventer Berlepsch, J. f. O. 1887, 

 pp. 12, 117 (Lambare) ; Sclater, Cat. B. Brit. Mus. xiv. p. 80; 

 Oberh. Proc. U.S. Nat. Mus. xxv. p. 139 (1902 : Sapucay); 

 Ihering, llevista Mus. Paulista, vi. p. 324 (Paraguay). 



a, b. $ ad. Sapucay, March 20, 31, 1903. 



Bill dark brown ; feet pinky slate-coloured ; iris brown. 



c, d, e. <$ ad. Sapucay, March 17-31, 1904. 



/. S ad. Sapucay, April 6, 1904. 



g. $ ad. „ June 8, 1904. 



[Resident and not uncommon in the forest at Sapucay. — 

 W.F.] 



123. Euscarthmus gularis. 



Tachuri cabeza de plomo Azara, Apunt. ii. p. 86. no. clxix. 

 (1805); Vieill. N. Diet. d'Hist. Nat. xxxii. p. 355 (1819). 



Muscicapa gularis Temm. PI. Col. iii. pi. 167. fig. 1 (1823: 

 Brazil). 



Euscarthmus gularis Berlepsch, J. f. O. 1887, p. 117 

 (Paraguay) ; Sclater, Cat. B. Brit. Mus. xiv. p. 81; Ihering, 

 Re vista Mus. Paulista, vi. p. 324 (Paraguay). 



a. <J ad. Sapucay, October 20, 1902. 



b. S ad. „ April 27, 1904. 



c. J ad. „ June 25, 1901. 



[A rare forest bird in this locality. — W.F.] 



124. Orchilus auricularis. 



Platyrhynchos auricularis Vieill. N. Diet. d'Hist. Nat. xxvii. 

 p. 16 (1818 : Brazil). 



Orchilus auricularis Berlepsch, J. f. 0. 1887, p. 131 

 (Mendoza : South Brazil) ; Sclater, Cat. B. Brit. Mus. xiv. 

 p. 88; Oberh. Proc. U.S. Nat. Mus. xxv. p. 138 (1902: 

 Sapucay) ; Ihering, Revista Mus. Paulista, vi. p. 324. 



