638 Messrs. Sclater and Mackworth-Praed on [Ibis, 



T. s. ERLANGERi (NeuHi.) : Abaja Lake. 



A slightly larger race with wing averaging 82 ram. Colour 

 of the back very close to T. s. habessinica, but witli a slightly 

 lighter region on the nape contrasting with the darker back ; 

 below with a distinct tinge of rusty brown, not pure 

 grey. 



Range. The southernmost part of Abyssinia from Lake 

 Abaja to Lake Rudolf east to the KuUo countries (see map, 

 Ibis, 1913, pi. xii.). 



T, S. SUDANENSIS, Subsp. UOV. 



Differs from both 7'. s. habessinica and T. s, erlangeri in 

 having the back a greyer shade of brown and at once distin- 

 guishable if a series is examined. Below always a clear grey 

 without any olive or brownish. Size large, wing averaging 

 85 mm. 



Type, a male, Mongalla, Sudan (coll. A. L. Butler), 

 July-Sept. 1908, B.M. reg. no. 1915/12/24/1357. Wing 

 91 mm. 



Range. This race is found throughout the central districts 

 of Abyssinia from the region about Lake Tsana south to 

 Lake Zwai, and westwards to Sennar and the White Nile. 

 Birds from the Harrar district to the east of Adis Ababa 

 and Lake Zwai ure intermediate and approach T. s. habes- 

 sinica. Those from Lake Zwai southwards are nearer to 

 T. s. erlangeri. 



Neumann doubtless intended to include this form in his 

 7\ s. erlangeri, but when the large Abyssinian series of skins 

 in the British Museum are spread out it is at once evident 

 that the birds from the southern lake-districts, whence 

 came the Neumann type, can be distinguished from those of 

 the highlands of Shoa, and that the Sudanese birds agree 

 with these last. 



Tschagra senegala remigialis. 



Tschagra remigialis (Finsch & Hartl.) ; Sclater in Shelley's 

 B. A. V. p. 369. 



Telephonus remigialis Butler, Ibis, 1905, p. 329. 



