Vol. xii.] 62 



characters of two apparently undescribed races of Mirafra 

 africana, which he considered to be quite as worthy of 

 distinction as M. tropicalis and other forms admitted by 

 ornithologists. 



Mirafra pallida, n. sp. 



M. africance similis, sed supra rufescenti-brunnea, vix 

 griseo lavata, notsei plumis anguste nigricanti-brunneo 

 striatis : loris, supercilio et facie laterali albis : maculis 

 pectoralibus minutis distinguenda. Long. tot. 7 - 5 poll., 

 culm. 8, alee 3 - 9, caudse 2'75, tarsi 1*2. 

 Hab. Damara Land [Andersson • typus in Mus. Brit.). 



Mirafra grisescens, n. sp. 



M. africana smiilis, sed colore grisescenti- nee rufescenti- 

 brunneo distinguenda. Long. tot. 7'7 poll., culm. 085, 

 alse 3 - 8, caudse 2'5, tarsi 1*2. 

 Hab. Tibakav's Vley, Matabele Land (F. Oates : typus in 

 Mus. Brit.). 



Dr. Sharpe also pointed out that the bird which he had 

 described as Spizocorys personata was not a Spizocorys, but 

 that it was certainly not an Alauda, in which genus Captain 

 Shelley had proposed to put it. It differed from Alauda in its 

 long wings, which reached practically to the tip of the tail, 

 and in its very peculiar flattened bill, especially on the genys. 

 The coloration was also so peculiar, that the species must be 

 made the type of a distinct genus, which Dr. Sharpe proposed 

 to call Aethocorys. 



The Hon. Walter Rothschild exhibited a new species of 

 Petrel, which he described as follows : — 



(EsTRELATA WORTHENI, n. sp. 



Obs. This bird bears a close resemblance to CE. magenta, 

 Gigl. & Salvad.,from which it differs in the following points : — 



The malar region, lores, and forehead are of a uniform 

 brownish slate-colour, while in the type of (E. magenta the 

 forehead and an ill-defined band above the black lores are 

 whitish. The general colour above is darker, more blackish. 



