193 



June 10, 1851. 



John Gould, Esq., F.R.S., in the Chair. 



The following papers were read : — 



1. On two new species of Birds of the genus T^nioptera. 

 By Philip Lutley Sclater, B.A., F.Z.S. etc. 



(Aves, PI. XLI. XLII.) 



TiENioPTERA erythropygia, Sclatcr. T. nigrescens ; vertice 

 f route guldque canescente-griseis ; maculd secundariorum albd ; 

 uropygio, abdomine toto crissoque, cum tectricibus caudce supe- 

 rioribus et alaruin inferioribus leviter brunneo-rufis ; rectricibus 

 brunneo-rufis nigra terminatis ; rostra pedibusque nigris. 

 Long. tot. 9 unc. 5 lin. ; alse, 5 unc. 7 lin. ; caudse, 4 unc. 4 lin. ; 

 rostri a rictu, 1 unc. ; a fronte, 6 lin. 

 Hab. in republica Equatoriana. 



Wings and interscapulars black, growing lighter towards the crown, 

 and greyish white on front and throat ; breast darkish grey ; outer 

 web of the last four or five secondaries broadly edged with white, 

 forming a white mark on the wing ; lower back and tail-coverts and 

 whole body beneath below the breast, as also under wing-coverts, light 

 brownish rufous; tail-feathers the same, but broadly tipped with black. 

 For the loan of this and the following species I have to thank Mr. 

 Edward Wilson, who received them from M. Verreaux of Paris. I 

 was at first inclined to refer both species to the genus Agriornis of 

 Mr. Gould, but having had through Mr. G. Gray's kindness an op- 

 portunity of examining the type of that form, Agriornis lividus* (Kit- 

 litz), I now consider them better placed in the present genus Tceni- 

 optera, with which they agree in all their distinctive characters. 



T.ENIOPTERA STRiATicoLLis, Sclatcr. T. supvci suturati fumoso- 

 brunnea ; uropygio paululilm rufescente tincto ; superciliis ru- 

 fescente-albidis ; pennis cauddque nigris ; secundariis tertiariisque 

 leviter brunnescente marginatis ; infrh leviter brunneo-rufa ; gut- 

 ture toto colloque albis nigra striatis ; rectricibus remigibusque 

 brunneo-rufis nigra terminatis ; rostra pedibusque nigris. 

 Long. tot. 9 unc. 5 lin. ; alse, 5 unc. 3 lin. ; caudse, 4 imc. ; rostri a 

 rictu, 1 unc. ^ lin. ; a fronte, 7^ lin. 

 Hab. in republica Equatoriana. 



Above dark smoke-brown ; an obscure whitish line from the bill to 

 the top of the eye ; quill-feathers brown-rufous, outer margins and 

 ends black ; secondaries, tertials, and wing-coverts nearly black, mar- 

 gined with hght brown ; beneath brown-rufous ; chin, throat and 

 neck white, with longitudmal striae of black ; tail-feathers brown- 

 rufous, the two outer broadly tipped with black ; the rest have also 

 the outer web black, except the two medial, which are wholly black. 

 * Tyrannvs gutturalis, Voy. de la Favorite, Ois. t. 11. 



No. CCXXXL — Proceedings of the Zoological Society. 



