166 On the Thrushes of the Ethiopian Region. 



schuetti to be the summer plumage, more or less abraded, 

 and consequently greyer on the back and less brilliant on the 

 flanks^ — in fact, faded — and T. tropicalis to be the newly 

 moulted autumn form. 



T. pelios is not found in South Africa, but in its restricted 

 sense may be said to be confined to the lowlands of Abyssinia, 

 the Bogos country, and the district from Abeokuta to the 

 Gold Coast. A western local race (var. cryptopyrrhd) is found 

 in Senegambia, and differs from the typical form in having 

 the huffish chestnut of the underparts absent altogether, 

 that usually on the flanks being replaced by pale greyish 

 brown. It is also slightly larger. On the east coast of the 

 Gulf of Guinea, near the equator, a tropical form (var, satu- 

 rata) occurs, having the upper parts and the breast darker 

 and browner, the dark margins to the under tail-coverts 

 somewhat more pronounced, and the size slightly less. 

 Further south on the same coast, in Angola, a southern form 

 has been described by Cabanis (var. bocagei), which is said to 

 be slightly larger than the typical form and to be more olive 

 on the upper parts, with the stripes on the throat less dis- 

 tinct ; but of this there is only one example in the Berlin 

 Museum. Newly moulted examples from the Gaboon exactly 

 answer Cabanis^s description ; and I have two examples in 

 my collection from the Congo, I have little doubt that it is 

 only the newly moulted autumn plumage of T. saturatus. 



T. tephronotus is found in Zanzibar, and appears to be a 

 good species, 



T. olwacinus inhabits the highlands of Abyssinia and the 

 Uganda country. It has a very near ally in South Africa 

 (var, olivacea), differing only in having the upper parts a 

 shade paler and the ground-colour of the throat whiter, 



T. cabanisi is very nearly allied to the preceding. It is 

 found in the Transvaal and Kaffirland. It is, perhaps, a 

 shade browner on the upper parts, and has the flanks also 

 brown, the bill also is slightly longer ; but some examples 

 are quite intermediate and difficult to determine. 



