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 pardo vientre de perla Azara, Apunt. ii. p„ 90. 
no. clxxii. (1805). 
Todirostrum margaritaceiventer D^Orb. et Lafr. Syn. Av., 
Mag. de Zool. 1837, p. 46 (Bolivia). 
Euscarthmus margaritaceiventer Berlepsch,, J. £. 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, Revista 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. S a d. Sapucay, March 17-31, 1904. 
/. S a d. 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 pfomo Azara, Apunt. ii. p. 86. no. clxix. 
(1805); Yieill. 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, 
Revista Mus. Paulista, vi. p. 324 (Paraguay). 
a. ad. Sapucay, October 20, 1902. 
b. S a d. „ April 27, 1904. 
6*. £ ad. ,, June 25, 1904. 
[A rare forest "bird in this locality.— W.F. 1 
124. Orchilus auricularis. 
Platijrhynchos auricularis Yieill. N. Diet. dUlist. 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. 
