Birds of Cameroon Mountain. 497 



Turdus nigrilorum has been kept as a species by Dr. 

 Reichenow, while T. lugubris Bodd. (=T. chiguancoides 

 Seebohm), which it so closely resembles^ is reckoned to be a 

 subspecies of T, pelios. This I do not agree with, and when 

 the African forms of the genus Turdus have been worked 

 out, Turdus nigrilorum will most certainly be relegated 

 to subspecific rank. It appears to be only a representative 

 race in Cameroon of the Senegambian Thrush, figured in 

 Seebohm^s Monograph of the Turdidse, vol. i. pi. Ixxviii. 



[Widely distributed in the forest. — B. A.] 



33. Turdus crossleyi. 



Turdus crossleyi Sharpe, Proc. Zool. Soc. 1871, p. 607, 

 pi. 47 : Cameroon Mt. 



a. S ad- (No. 1). Cameroon Mt. 18. v. 09. 



The rediscovery of this very rare Thrush on Cameroon 

 Mountain is one of the most interesting results of the 

 expedition. An adult specimen of Turdus crossleyi was 

 obtained by Crossley in 1871, and since that date has re- 

 mained the only example known. It is very curious that 

 Sir Harry Johnston, Zenker, Sjostedt, and other less famous 

 collectors should have failed to obtain the bird again. The 

 example now secured by Alexander is a fine adult male, 

 similar in every way to the type, of which the sex was not 

 ascertained. T. crossleyi has been very well figured in 

 Seebohm's Monograph of the Turdidae (vol. i. pi. xii. p. 37). 



34. Cossypha isabellae. 



Cossypha Isabella Gray, Ann. Mag. Nat. Hist. (3) vol. x. 

 1862, p. 443 : Cameroon Mts. 



a. ? imm. (No. 7). Cameroon Mt. 28.iii.09. 



b, c. S ad. et c? imm. (Nos. 8, 9). „ „ 29. iii. 09. 

 c?, e. cJ ad. et ? imm. (Nos. 2, 5). „ „ 30. iii. 09. 

 /. (J imm. (No. 3). „ ,, 3. iv. 09. 

 g,h. cJad.et c^imm. (Nos.6(«),6(6)). „ „ 4.iv.09. 

 k. S ad. (No. 1). „ „ 7.iv.09. 

 I. ^ ad. (No. 10). „ „ 9. v. 09. 

 The birds in the above list marked "immature" differ 



from the adults in having the heads greyer and the general 



