from British Guiana. 439 



There are two specimens of this species in Mr. Whitely's 

 collection^ one of each sex. The spots on the tail in A. ni- 

 grescens are terminal and embrace both webs ; in this species 

 one web only is involved. The outer quill of the wings has a 

 white bar, the same quill in A. niffrescens being wholly black. 



375. Stenopsis cayennensis. 



Caprimulgus cayennensis, Gm. Syst. Nat. i. p. 1031 ; Cab. 

 in Schomb. Guiana, iii. p. 710. 



Stenopsis cayennensis, Scl. P. Z. S. 1866, p. 140. 

 Merume Mountains, Roraima (3500-4000 ft.). 



376. Stenopsis ruficervix. 



Stenopsis ruficervix, Scl. P.Z. S. 1866, p. 140, pi. 14. 



Caprimulgus decussatus, Cab. in Schomb. Guiana, iii. p. 710 

 (nee Tsch.). 



Roraima (5000 ft.). 



It is most probably this species to which Prof. Cabanis 

 refers under the name C. decussatus, Tsch. 



377. Hydropsalis schomburgki. 



Hydropsalis schomburgki, Gray, Scl. P. Z. S. 1866, p. 142. 

 Hydropsalis furcifer, VieilL, Cab. in Schomb. Guiana, iii. 

 p. 711? 

 Camacusa. 

 A female belonging apparently to this species. 



378. NyctidrOxMus albicollis. 



Caprimulgus albicollis, Gm. Syst. Nat. i. p. 1039; Cab. in 

 Schomb. Guiana, iii. p. 710. 



Nyctidromus albicollis, Scl. P. Z. S. 1866, p. 144. 

 . Bartica Grove. 



379. Steatornis caripensis. 



Steatornis caripensis, Humboldt, Rec. d'Obs. Zool.ii. p. 141 ; 

 id. Nouv. Ann. Mus. 1834, p. 321 ; Scl. P. Z. S. 1866, 

 p. 130. 



Roraima. 



A single specimen, of which Mr. Whitely says : — ''This bird 

 was brought to me alive yesterday (Oct. 2, 1883). It had 

 come down from some crevice in the vertical rocks of 

 Roraima." 



2h 2 



