498 Mr. D. A. Banuerman on the 



colour of tlie upperparts lighter. They do not show any 

 other signs of immaturitv. The series obtained bv Alexander 

 is a very fine one. C. isabel/a was named by Gray in honour 

 of Lady Isabel Burton, who first brought examples of the 

 species to this country. 



[ Found from above Buea to the limits of forest-growth. — 

 B. A.] 



35. Alethe poliothorax. 



Alethe poliothorax Reichw. Orn. Monatsber. 1900, p. 6 : 

 Bangwa, in N.W. Cameroon. 



«. c? ad. (No. 2). Cameroon Mt. 14.iv.09. 



b. ? ad. (No. 1). „ „ 24.iv.09. 



c. S ad. (No. 3). „ „ 12.V.09. 



d. S ad. (No. 4). „ „ 16. v. 09. 



This rare Robin-Cliat was described from Bangwa, a 

 district in north-west Cameroon situated about 125 miles 

 north of Cameroon Mountain. 



Its range is peculiar. It next turned up, as might 

 be expected, in Fernando Po, where Alexander obtained a 

 single bird (the type of A. mouri Alex.), which has since 

 been shown by Mr. Ogilvie-Graut and Dr. Reichenow to 

 be synonymous. 



Two examples obtained in the Mubuku Valley at 7000- 

 8000 ft. by the Ruwenzori Expedition undoubtedly belong 

 to this species. It was not met with in the Congo Forests, 



Until Alexander obtained the bird on Cameroon Moun- 

 tain, it had not previously been recorded from there. 



[Rare, distributed from Buea upwards. Most difficult to 

 obtain, keeping always to the thick undergrowth, where it 

 greeps about in a mouse-like fashion, uttering at intervals a 

 series of loud notes. It was found breeding. — B. A.] 



36. Saxicola salax pallidigula, 



Praiincola pallidigula Reichw. Journ. fiir Orn. 1892, 

 p. 194 ; Buea, Cameroon Mt. 



«. c? ad. (No. 8). Cameroon Peak. 28.iii.09, 



h,c. S 6 imm. (Nos. 3, 7). „ „ 16. iv.09, 



d. ? ad. (No. 1). „ „ 16. iv.09, 



