654 Messrs. Sclater and Mackwortli-Praed on [Ibis, 



Cisticola butleri. 



Cisticola butleri O.-Graut, Bull. B. O. C. xxi. 1907, 

 p. 17 : Chak Chak ; Butler, Ibis, 1905, p. 229. 



[B. coll.] 1 Chak Chak Feb. B.G. [Type of the species.] 



The type of this species seems unique, there is nothing 

 else quite like it in the Museum. It has a curious long 

 slender bill, and is probably related to C. sylvia or 

 C erythrups. 



Cisticola wellsi. 



Cisticola ivellsi O.-Grant, Bull. B. O. C. xxi. 1907, p. 17 : 

 Bahr el Ghazal ; Butler, Ibis, 1905, p. 229. 



[B. coll.] 1 2 Pongo river Mch. B.G. [type of species] ; 

 1 ? Kajo Kaji, L.E. 



Both the known examples of this form are females. The 

 males are probably a good deal bigger, but until a larger 

 series are available it is difficult to say more about it. It 

 resembles generally C t. troylodytes, but has a very much 

 larger and stronger bill. 



Cisticola sp. 



[Chr. coll.] 1 S Yambio Mch., J ^ Mt. Baginzi Mch. 

 B.G. 



We wei'c inclined at first to regard these birds as the 

 males of C. wellsi, but they are somewhat different. The 

 Yambio bird, wing 6-i- mm., has the back a rich rufous- 

 brown of a more chestnut tinge than C. wellsi, and a very 

 much larger bill (13 mm. against 1 1) ; the Mt. Baginzi bird 

 is dusky rather than rufous-brown, but resembles the other 

 specimen in dimension.s and form. It is very like a series of 

 birds collected by Alexander on the Welle river which seem 

 to come near C. emini and C. rufopileata. 



Cisticola petrophila. 



Cisticola jjctrophila Alexander, Bull. B. O. C. xix. 1907, 

 p. 104 : Pettu, N. Nigeria. 



Cisticola cinerascens (Heugl.) ; Butler, Ibis, 1908, p. 230. 

 [B. coll.] 1 Doleiba Jan. B.G. ; 1 Kajo Kaji, L.E. 



