Birds from British East Africa and Uganda. 437 



A somewhat worn specimen, and moulting on the head; 

 the white outer tail-feathers are broadly tipped. 



The series in the British Museum collection shows that 

 some variation occurs in the markings of the tail, some 

 specimens having pure white under tail-feathers, others 

 having broad tips and even having the dark colour running 

 up the edge of the inner webs, these variations being found 

 in the same locality. 



It would therefore appear that one of the characters 

 given by Mr. Ogilvie-Grant for his Prodotiscus peasii (Bull. 

 B. O. C. vol. xi. 1901, p. 67 : Unji, Abyssinia) is of little or 

 no value, and the central tail-feathers are not lighter than 

 some specimens of P. refjulus ; but as the wing measures 

 in the single type-specimen 83 mm. against 80-75 mm. in 

 P. regulus, P. peasii may prove to be a somewhat larger 

 race confined to north-east Africa. 



Prodotiscus zambesi<2 Shelley (Ibis, 1894, p. 8 : Zomba, 

 Nyasaland), the type of which is in the British Museum, 

 has an olive-green back and wings, and has nothing to 

 do with P. regulus, and cannot therefore be placed as a 

 synonym {cf. Reich w. Vog. Afrikas, vol. ii. 1902, p. 114). 

 It is undoubtedly allied to Prodotiscus (Hetarodes) 

 insignis Cass. (Proc. Acad. Philad. 1856, p. 157 : Moonda 

 Kiver, Gaboon ; id. 1859, pi. i. fig. 2) ; as are also Indi- 

 cator emini Shelley (P. Z. S. 1888, p. 43, pi. iii. : Wadelai), 

 the type of which is in the British Museum, Prodotiscus 

 ellenhecki ErL (Orn. Monatsbr. 1901, p. 182: Daroli 

 (Arrussi), Abyssinia), and Prodotiscus reichenowi Madarasz 

 (Ann. Mus. Hung. vol. ii. 1904, p. 206: Moschi, German 

 "East Africa) ; but the insufficient series before me does not 

 allow me to discuss these forms. 



191. Lybius leucocephalus. White-headed Barbet. 

 Laimodon teucocephalus Defil. Rev. et Mag. Zool. 1853, 

 p. 291 : White Nile, between 3° & 4° N. latitude. 



a. S • N.E. slopes of Nakwai Hills, 3600 ft. Feb. 8. 



b. S • Pader District, 3100 ft. Feb. 18. 



Total length in flesh 8| & 7\ inches. Wing 91 & 90 mm. 

 Both these specimens have the appearance of young birds. 



