131 [Vol. xxxiii. 



almost identical in colour, has the bill and mouth pale 

 yellowish. It inhabits the same papyrus jungle, and is met 

 with in equal, if not in greater numbers. The songs of the 

 two birds are very different. 



Captain Lynes also exhibited and described examples of a 

 new species of Weaver- Finch. He said that in the British 

 Museum there were a pair of birds of the genus Ortygospiza 

 from Gaboon, collected by Du Chaillu, which had been 

 referred by Sharpe to 0. atricollis (Vieill.) (specimens ft b" 

 & " c"), but which were obviously of a different species. 

 These he proposed to name 



Ortygospiza gabonensis, sp. n. 



Ortygospiza atricollis Sharpe, Cat. Birds B.M. xiii. p. 270 

 (1890) [part., specs, b & c~\. 



Adult male. Differs from all other known species of 

 Ortygospiza in having the upperparts light tawny brown 

 mottled with sepia, the feather-centres being of the latter 

 colour, instead of uniform, or nearly uniform dark brown ; 

 no white feathers on the chin or round the eye ; the under- 

 pays paler rufous, and the white bars on the crop, chest, 

 and flanks of nearly double the width. 



Adult female. Differs in a similar manner ; but the buff on 

 the underparts, though paler, is more extended on the 

 breast and flanks than in the male. 



Hab. Gaboon. 



Types in the British Museum : $ and ? . Gaboon. 

 P. B. Du Chaillu coll. 



Obs. The sex in the two specimens in the British Museum 

 has not been determined, but they are obviously an adult 

 male and female. 



Mr. C. Chubb exhibited examples of two new species of 

 birds from British Guiana, which he described as follows : — 



Planesticus arthuri, sp. n. 



Adult. Allied to P. murium (Salvin), but differs in being 

 smaller, in having the upper surface grey with a slight olive 



a 3 



