1873.] THE BIRDS OF EASTERN PERU. 259 



Heron, Roseate Spoonbill, &c. Four white eggs are laid in July or 

 August."— E. B. 



Having now had an opportunity of comparing Amazonian skins of 

 this Swallow with a specimen from Cayenne, we must pronounce 

 them identical. Such being the case, the present bird must be 

 called H. albiventris, that name having been founded on Buffon's 

 Hirondelle a ventre blanc de Cayenne. 



7. Stelgidopteryx rtjficollis (Vieill.); Scl. & Salv. P. Z. S. 



1866, p. 178; 1867, p. 749. 



Upper and Lower Ucayali, Yurimaguas {Bartlett). 



"The nest, like that of Atticora fasciata, is composed of leaves, 

 stems of a prickly climber, fine bents, and fibres of bark very loosely 

 put together, and is placed in holes in banks. Four or five white 

 eggs are laid in September ; but I also took uests on the Huallaga in 

 July."— E. B. 



Fam. CcerebiDjE. 



This characteristic family of the tropics of the New World, 

 although not very rich in species, is, I believe, very abundant in 

 individuals in South America. Of the nine species obtained by Mr. 

 Bartlett, most are widely distributed. The lovely Ducnis flavi- 

 ventris, Ccereba nitida, and Hemidacnis are, I believe, strictly Upper- 

 Amazonian forms. I have met with skins of all of them in Bogota 

 collections ; but these are probably obtained from the wood-region 

 of the Amazonian slope of Columbia. 



1. Hemidacnis albiventris, Sclater; Scl. & Salv. P. Z. S. 



1867, p. 749. 



Xeberos and Chamicuros (B.). 



" Congregates in flocks, like the rest of the group." — E. B. 



2. Dacnis melanotis, Strickl. ; Scl. & Salv. P. Z. S. 1866, 

 p. 179; 1867, pp. 749, 977. 



B. angelica, Scl. P. Z. S. 1857, p. 263. 



Upper and Lower Ucayali, Xeberos {Bartlett) ; Pebas(//aimi'e//). 



3. Dacnis cayana (Linn.) ; Scl. P. Z. S. 1857, p. 263; Scl. & 

 Salv. P. Z. S. 1866, p. 179 ; 1867, pp. 749, 977. 



Lower Ucayali, Xeberos, and Chamicuros {Bartlett) ; Pebas 

 (Hauxwell) ; Ega {Bates). 



" This and the two following species of Dacnis unite in flocks 

 at certain seasons, when the fruits are ripe on the trees." — E. B. 



4. Dacnis flaviventris, Lafr. et D'Orb. ; Scl. & Salv. P. Z. S. 

 1866, p. 179; 1867, p. 977. 



Upper and Lower Ucayali, Sarayacu {Bartlett) ; Pebas (Haux- 

 well) ; Rio Javari {Bates). 



5. Dacnis analis, Lafr. et D'Orb.; Scl. & Salv. P. Z. S. 1866, 

 p. 179. 



Upper Ucayali {Bartlett). 



"Not so abundant as the preceding species." — E. B. 



17* 



