C AMPYLOPTERUS. 25 



black; rest of tail feathers black broadly tipped with white. Under surface gray. 

 Maxilla black, uiaudible flesli-color. Total length, 5.|. Wing, 31. Tail, 2^. 

 Culmen, 1. 



2. Campyloptems obscurus. 



Campylopterus ohscuriis, Gould, P. Z. S. (1848), p. 13. — Id , Mon. Trocli., vol. ii, pi. 19. — Id., Intr. Troch., 

 octavo ed., p. 54. — Bon., Consp. Gen. Av., vol. i, p. 71. — Id., Kev. aud Mag. Zool. (1854), p. 250. — Kbich., 

 Aufz. der Colib., p. 11.— Id., Troch. Enura., p. 9. 



Campylopteriis oeqmUorialis, Gould, Intr. Troch., octavo ed., p. 54 (ex Ecuador). 



Hah. Valley of the Amazon to rem, and Ecuador. 



Adult. Upper parts grass-green. Under surface dark gray. Middle rectrices 

 green, three lateral ones black tipped with white. 



This species only differs from the C. lar(jipcnnls in the small amount of white 

 upon the tips of the tail feathers. I have placed as a synonym the C. arptaforidh's, 

 Gould, as I cannot really perceive any grounds for separating them ; and it would 

 even seem that the specific characters distinguishing the present bird from Iai(ji- 

 pennis are of the most trivial kind. 



3. Campyloptems rufus. 



Campyloptems rufus, Lk.-w., Rev. Zool. (1840), p. 73.— Goi-ld, Mon. Troch., vol. ii, pi. 50.— Id., Intr. Troch., 

 octavo ed., p. 54.— Bon., Con.^p. Gen. Av., vol. i, p. 71. — Id., Rev. and Mag. Zool. (1854), p. 250. — Muls., 

 Hist. Nat. Ois. Mouch., torn, i, p. 135. 



Polylmus rufus, Gray, Gen. Birds, vol. i, p. 107. 



Platystylopterus rufus, Reich., Aufz. der Colib., p. 11.— Id., Troch. Enum., p. 8, pi. 789, fig. 4834-35. 



Hah. Guatemala. 



Head and upper parts bronzy-green. "VVings purplish-brown. Entire under 

 parts dark bufl:'. Four central rectrices bronzy-green, remainder rufous, and all 

 but the median pair with a subterminal black bar and tips bufif. The black bar 

 increases in width towards the outer rectrices, but on the outermost only appears 

 on the inner web. Total length, 5:^ in. Wing, 2| in. Tail, 2 in. Culmen, 1 in. 



4. *Cainpylopterus hjrperythms. 



Campylopterus hyperylhrus. Cab., Schonib. Reise. Brit. Guiana (1848), vol. iii, p. 709, no. 202. — Bon., Rev. 



and Mag. Zool. (1854), p. 250.— Gould, Mon. Troch., vol. ii, pi. 51.— Id., Intr. Troch., octavo ed., p. 54. 

 Platystylopterus hyperylhrus, Reich., Aufz. der Colib., p. 11 (1853).— Id., Troch. Enum., p. 8, pi. 790, fig. 



483G-38 (1855). 

 Loxopterus hyperylhrus. Cab. aud Hein., Mus. Hein. Th., iii, p. 13 (1860). 



Eab. Guiana. 



The principal difference that distinguishes this species from the C. rufm, is, 

 that the lateral rectrices arc uniform rufous without any black bar. ^lore speci- 

 mens are required (the type being still unique) to enable us to ascertain if the 

 example is really entitled to a distinctive rank, or if the absence of the bar is 

 merely an individual peculiarity. 



4 July, 1878. 



