1873.] THE BIRDS OF EASTERN PERU. 275 



24. Formicivora quixensis (Corn.); Scl. & Salv. P. Z. S. 1866, 

 p. 566. 



"Only one example of this pretty species obtained at Nauta." — 

 E. B. 



25. Cercomacra cinerascens, Scl. ; Scl. & Salv. P. Z. S. 1866, 

 p. 186; 1867, pp. 750, 978. 



Sarayacu and Chyavetas (Bartlett) ; Pebas (Hauxwell). 



" Several specimens from the latter locality. The nest is composed 

 principally of leaves and sticks. The colour of the egg is pale brown, 

 streaked and blotched with rich brown and grey. The markings, as 

 in the eggs of all this group, as far as I can see, are elongated towards 

 the small end. The eggs in colour resemble those of Pygoptila 

 margaritata, but are much smaller." — E. B. 



26. Pyriglena serva, Scl. ; Scl. & Salv. P. Z. S. 1866, p. 186. 

 Nauta, Upper and Lower Ucayali, and Chamicuros (E. B.). 



27. Percnostola funebris (Licht.) ; Scl. & Salv. P. Z. S. 



1866, p. 186. 



Nauta; only once obtained (E. B.). 



28. Percnostola fortis, Scl. & Salv. P. Z. S. 1867, pp. 978, 

 980, t. xlv. 



Pebas {Hauxwell) ; Chyavetas (E. B.). 



29. Heterocnemis argentata (Des Murs). 

 Herpsilochmus argentatus (Des Murs). 



Myrmeciza argentata, Sclater, P. Z. S. 1858, p. 250, et Cat. A. B. 

 p. 187. 



" Chamicuros. Agrees with the female in Dr. Sclater's collection 

 from Eastern Peru. Probably the first male of this species seen ; 

 it is now in the British-Museum collection. Slate-grey on back, 

 belly white ; wings blackish, darkish on primaries ; bill rather long ; 

 legs flesh-colour. Female light brown. Always about brooks and 

 boggy places." — E. B. 



I have recently obtained a male of this species, from Oyapok, 

 Cayenne, through Madame Verdey. — P. L. S. 



30. Myrmeciza hemimel.ena (Scl.) ; Scl. & Salv. P. Z. S. 



1867, pp. 750, 756. 



Xeberos, only once obtained (E. B.). 



31. Hypocnemis cantator (Bodd.) ; Scl. & Salv. P. Z. S. 

 1866, p. 186 ; 1867, pp. 750, 978. 



Upper Ucayali, Xeberos, Chyavetas, Chamicuros, and Santa Cruz 

 (Bartlett) ; Pebas (Hauxwell). 



" The egg of this species somewhat resembles that of the others ; 

 but it is smaller and rounder. The ground-colour is whiter and 

 markings very dark and close at the large end. The nest is loosely 

 made of leaves, sticks, &c." — E. B. 



18* 



