Notes on Guiana Birds. 261 



XXXIV. — Notes on Guiana Birds. By Lord Brabourne, 

 F.Z.S., M.B.O.U.,and Charles Chubb, F.Z.S., M.B.O.U., 

 Zoological Department, British Museum, 



Iv the preparation of the List of the Birds of South America 

 we have been allowed access to the very fine collection o£ 

 British Guiana birds in the possession of Mr. F. V. McConnell, 

 and ia examining some of the species noticed the items 

 mentioned below. 



We have also to thank the Hon. Walter Rothschild for 

 the loan of specimens which has helped us in the elucidation 

 of some of the more difficult points. 



We find that Rhamphastos aracari, Linn., is not appli- 

 cable to the Guiana bird, as the author attributes it to the 

 Brazilian species : cfr. Syst. Nat. i. p. 104 (1758) (Brazil), 

 ex Marcgrave. R. atricollis, P. L. S. Miiller, Syst. Nat., 

 Suppl. p. 83 (1776), was also founded on the Brazilian 

 form, ex Buflfon. 



Wied appears to be the first author to recognize the true 

 Ptet'oglossus aragari (Linn.), cfr. Beitr. Naturg. Bras. iv. 

 p. 283 (1831) ; and P. iviedii, Sturm, must be allocated as a 

 synonym of P. aracari (Linn.). 



The habitat of this species is Eastern Brazil, from Para to 

 Rio de Janeiro. 



The Guiana bird therefore requires a name, for which we 

 propose 



Pteroglossus roraimce, nom. nov. pro Pteroglossus aragari, 

 auctorura (nee Linn.). 



This species is most nearly allied to P. aragari (Linn.), 

 from Eastern Brazil, but is distinguished by the broad black 

 longitudinal band on the ridge of the culmen and the citron- 

 yellow colour on the breast and abdomen, instead of the 

 narrow black band on the culmen and the sulphur-yellow of 

 the underparts, as in the Brazilian form. 



The following notes have been compiled on a large 

 number of examples of the Thryothorus coraya group of 

 Wrens, which indicates four different races, or subspecies. 

 T. coraya (Gmel.) was founded on Daubenton^s plate, which 

 bird was supposed to have come from Cayenne. Ridgway 



Ann. & Mag. N. Hist. Ser. 8. Vol. x. 18 



