Mr. Gould describes his Nyctibius bracteatus as from " Bogota." This may be a correct 

 locality, but, amongst many thousands of Bogota skins examined, we have never met with it. 

 A more certain patria is British Guiana, where Schomburgk obtained a single specimen. Hence 

 it extends over the Amazon valley as far as Pebas, where Messrs. Castelnau and Deville 

 obtained an example now in the Paris Museum. 



Nyctibius bracteatus is a very well-marked species, distinguished by its small size, red 

 colouring, and the quadrate white spots on the scapulars and plumage below. It cannot well 

 be confounded with any of the five other known species of the genus, which stand as follows, 

 taking the larger sized first : — 



1. Nyctibius geandis. 



Caprimulgus grandis, Gm. : Buff. PI. Enl. 325. 



Sab. Cayenne, (Buff.): British Guiana, (Schomb): Caraccas, (Levraud in Mus. Par.) : Upper Ucayali, (Bartlett): 

 littoral of S.E. Brazil, (Max.). 



2. NYCTIBIUS .^THEREUS. 



Caprimulgus cethereus,MsiX. Beitr. iii. p. 303. 

 Hab. Littoral of S.E. Brazil, (Max.). 



3. Nyctibius longicaudatus. 



Caprimulgus longicaudatus, Spix, Av. Bras. ii. p, 1, t. 1. 



Sab. Porests of the river Japura, (Spix): Maynas, E. Peru, (Tschudi). 



4. Nyctibius jamaicensis. 



Caprimulgus jamaicensis, Gm. : Capr. cornutus, Vieill. : N. pectoralis, Gould, Ic. Av. t. 8 : Nyct. urutao, Lafr. 

 Sab. Jamaica, (Gosse): Trinidad, (Leotaud): Guatemala, (Salvin): "Western Ecuador, (Eraser): Eastern 

 Peru, (Tscli.): Brazil, (Burm.): Paraguay, (Azara). 



5. Nyctibius leucopterus. 



Caprimulgus leucopterus, Max. Beitr. iii. p. 311 : Des Murs, Icon. Orn. tt. 49, 50. 

 Sab. Littoral of S.E. Brazil, {Max.). 



Full details concerning the synonymy and other particulars of these species have been given 

 by Mr. Sclater, in his recently published papers on the American Caprimulgida?.* 



* P.Z.S. 1866, p. 123, et p. 581. 



May, 1867. 



[40] 



