63 [Vol. xiii, 



Mr. Clifford Borrer exhibited a specimen o£ the Red- 

 legged Partridge (Caccabis rufa, L.) in abnormal plumage. 

 It was pure white, with the exception of a few rusty markings 

 on the head, back, and tail ; the soft parts were normally 

 coloured. The bird had been obtained in Leadenhall 

 Market, and Mr. Rothschild remarked that he possessed two 

 somewhat similar examples obtained from the same source. 



Dr. Ernst Hartert exhibited examples of a new species of 

 Serinus, which he described as follows : — 



Serinus angolensis somereni, subsp, n. 



Adult male and female. Differ from S. a. angolensis (of 

 which I compared a large series, chiefly collected by Dr. W. 

 J. Ansorge) in having the general colour of the upperside 

 darker ; the sides of the chest dull grey; and the black patch 

 on the throat more extended. The middle of the breast and 

 belly is white, while in S. a. angolensis in fresh plumage 

 it is distinctly buflF. Iris brown. Bill and feet horn-colour. 



Hah. Toro, Uganda. 



Types in the Tring Museum : c? ? . Nos, 69 and 70 B. G., 

 xi. 10. R. A. L. van Someren coll. 



Obs. This interesting new form is named after Dr. R. A. 

 L. van Someren, who collected the pair in November 1910. 

 They were breeding, Mr. Ogilvie-Grant has shown me 

 two skins in the British Museum, one from Mt. Nkabwe, 

 Uganda-Congo Boundary (T. V. Fox coll.) and one from 

 Entebbe (E. Degen coll.). I am inclined to think that 

 the specimens taken at Butambi by Emin Pasha, and at 

 Kampala by Professor Neumann, should also be referred 

 to this form. 



Dr. Ernst Hartert also exhibited examples of a new sub- 

 species of Manakin, which he described as follows : — 



ChiromachyEris manacus trinitatis, subsp. n. 



While arranging the Pipridae in the Tring Museum 



