1867.] THE BIRDS OF THE LOWER AMAZONS. 585 



great interest as indicating the correct locality of this Humming-bird, 

 which was unknown to Mr. Gould. The under surface of the pre- 

 sent specimen is sordid white, with slight inarginations of bluish 

 green in some of the feathers. The upper tail-coverts retain the 

 characteristic bronzy colouring of the male bird. 



Fam. CucuLiD.E. 

 -f-188. Crotophaga ani, Linn. 

 Mexiana. 



189. Crotophaga major, Linn. 

 Capim River. 



190. GuiRA piRiRiGUA (Vicill.). 

 Mexiana. 



-i^l91. DiPLOPTERUS N^vius (Lhni.). 

 Mexiana. 



192. PlAYA CAYANA (Limi.). 



Para. 



+ 193. PlAYA MINUTA (Vicill.). 



Para. 



Fam. OpiSTHocoMiDiE. 



194. Opisthocomus cristatus. 



Para. 



" This bird abounds on the low shores of the river between Para 

 and the Tocantins. It is found in small flocks of from ten to twenty 

 individuals, and feeds on the leaves of the Arum arboreum, with 

 which its stomach is generally loaded. This gives it a very disagree- 

 able odour. Nothwithstanding its large wings, its flight is slow and 

 laboured. It is never seen on the ground or in high trees, but 

 principally sitting upon the Arum. When alarmed it throws up its 

 crest exactly in the same manner as the Guira." — A. W. 



Fam. Ramphastid^. 



195. Ramphastos toco. 



"Obtained in Mexiana, but not known at Para." — A.W. 



196. Ramphastos erythrorhynchxjs, Gm. 

 Para. 



197. Ramphastos osculans, Gould. 

 Upper Rio Negro. 



198. Ramphastos ariel, Vig. 

 Para. 



