1870.] MR. P. L, SCLATER ON NEW AMERICAN BIRDS. 329 
This species is nearly allied to P. columbianus, Cab., and P. pan- 
erythrus*, mihi, but is easily distinguishable from both these spe- 
cies by its dark chestnut-red cap. In P. columbianus the head 
above is greenish cinereous, with a definite pale brown superciliary 
stripe ; in P. panerythrus it is olivaceous brown, like the back. In 
both the latter species also the wings are of a much brighter chest- 
nut-red, and the colour below is more rufescent. 
I have two skins of this Philydor, exactly similar, of the usual 
“‘ Bogota’? make. I have had them for some time, but have never 
been able to find a name for them. There is a third specimen in 
the collection of Messrs. Salvin and Godman. 
This bird is also not unlike P. ¢urdinus of Von Pelzeln in general 
colour, but is again distinguishable by its rufous head. 
3. CHEZTURA BRACHYCERCA, Scl. et. Saly. P. Z. S. 1867, p. 758, 
pl. xxxiv. 
Since our publication of the description of this Chetura, Mr. 
Salvin has obtained an undoubtedly Cayenne skin of the same spe- 
cies. This has led me to refer again to Buffon’s figure of his 
Hirondelle & queue pointue de la Lousiane (Pl. Enl. 726. fig. 2), 
upon which Temminck (Tableau Méthodique, p. 78) established his 
Cypselus poliurus. I have also carefully re-examined a typical 
specimen of Acanthylis brachyura, Jardine, in my own collection, 
and have come to the conclusion that all these synonyms are refer- 
able to one species. But the Brazilian bird, which I have hitherto 
referred to Cypselus poliurus of Temminck, is quite different, and 
may be called cinereceauda—A canthylis cinereicauda, Cassin, being 
the earliest synonym certainlyt referable to it. 
These two species will therefore now stand as follows :— 
(1) CHa&ruRA POLIURA. 
Hirondelle a queue pointue de la Lousiane, Buff. Pl. Enl. 726. tig. 2. 
Cypselus poliurus, Temm. Tabl. Méth. p. 78. 
Acanthylis brachyura, Jard. Ann. N. H. ser. 1, vol. xviii. p. 120. 
Chetura brachycerca, Scl. et Salv. P. Z.S. 1867, p. 758, pl. xxxiv. 
Hab. Amazonia, Xeberos (Bartlett); Cayenne (Mus. S.-G.) ; 
Tobayo (Jardine) ; Trinidad (I’insch). 
Dr. Finsch informs me that he has lately received a skin of this 
species in a collection from Trinidad. 
(2) Cuarura CINEREICAUDA. 
? Vencejillo, Azava, Apunt. ii. p. 513. 
? Hirundo oxyura, Vieill. N. D. xiv. p. 473, et E. M. p. 331. 
Cypselus pelasgius, Max. Beitr. iil. p. 347. 
* Philydor panerythrus, mihi, P. Z. 8. 1862, p. 110, was erroneously termed 
semirufus in the Supplement to my American Catalogue, p. 360. I cannot dis- 
tinguish it from the Costa-Rican skins which Mr. Salvin refers to Awtomolus 
rufescens, Lawr. Ann. L. N.Y. viii. p. 345. 
1 If Azara’s “iencejil/o,” Apunt. ii. p. 513, be proved to be the same as the 
Brazilian bird, an older name will be oxywra of Vieillot. 
