212 Mr. A. L. Butler on the 



Captain Shelley only traces the range of this species as far 

 north as Sassa in the Niam-Niam Country, and says that 

 A. orientalis Hartl. certainly replaces it in the Nile water- 

 shed. According to him, it was A. orientalis which 

 Von Heuglin obtained near Wau, and Antinori near the 

 Bahr-el-Ghazal River. The birds which I collected in this 

 district, however, certainly belong to the Western form. 

 Chak Chak is about 4 degrees farther north than Sassa. 



7. ZOSTEROPS SENEGALENSIS Bp. 



a. S ' Pongo River, 22. 3. 07. 



I found this White-eye common along my route in the 

 Bahr-el-Ghazal country. The birds were first noticed at 

 Amien, occurred again at Wau, and were met with daily 

 afterwards. They were especially plentiful in a kind of 

 thick bush which fringed the Khor Gitti. 



8. ZoSTEROPS ABYSSINICA Gucr. 



a. c? . Erkowit, 29. 3. 06. 



The Abyssinian White-eye was common on the Erkowit 

 Hill, from near the foot of the Kolkilai Pass to the summit 

 — about 4000 ft. It was met with in flocks, actively working 

 about among the vegetation in the ravines, and was absent 

 from the more barren hills immediately south. 



9. Parus leucomelas Riipp. 

 a. S' Menyah, 16.1.07. 



The Northern Black Tit was common between Meshra-el- 

 Rek and Wau, and in the more open parts of the country 

 from there to Chak Chak. 



10. Parisoma plumbeum (Hartl.). 



a. $ . Khor Gitti, 29.1.07. 



b. ?. Chak Chak, 12.2.07. 



c. ?. „ 27.2.07. 



Met with on several occasions between Wau and Chak 

 Chak, though I never saw more than one at a time. It 

 was generally flitting about on branches, with half-expanded 

 wings and expanded tail, the white outer rectrices being 

 displayed conspicuously. 



