BIRDS OF ETHIOPIA AND KENYA COLONY 281 



4. L. f. amhiguus: Tanganyika Territory and Kenya Colony west 

 of the coastal belt and east of tliQ Rift Valley. The white on the 

 wing is confined to the middle upper coverts and is often concealed 

 by overlying feathers in the folded wings of ordinary bird skins, 



5. L. f. somaUensls : Southern Somaliland. Similar to amhiguus, 

 but smaller ; wings, 80-85 mm, as against 85-97 mm in the latter. 



6. L. f. major: Kenya Colony west of the Rift Valley, Uganda, the 

 southern Anglo-Egyptian Sudan (Upper White Nile and Bahr el 

 Ghazel) west to Cameroon, Nigeria, Gold Coast, and Sierra Leone. 

 Sclater '"^ lists specimens from southern Nigeria, but Bannerman ^'^ 

 does not mention it in his work on the birds of that country. This 

 form resembles mossamhicKS, but is larger; wings, 95-105 mm. 



7. L. f. aethiopicus : Ethiopia, Eritrea, and the Kassala Province 

 of the Anglo-Egyptian Sudan, south on isolated highlands to the 

 Kikuyu Escarpment in Kenya Colony. This race has no white on 

 the edges of the secondaries, but the white area extends on to the 

 longest secondary coverts; size large; wings, 100 mm. 



8. L. f. suhlacteus: The coastal districts of East Africa from Dar 

 es Salaam to the mouth of the Tana River. This race has no white 

 on the wing at all ; size fairly small ; wings, 80-85 mm. 



9. L. f. turatii: Portuguese Guinea to Senegal. This form, which 

 I have not seen, is said to resemble suhlacteus in having no white mark 

 on the wings, but is larger (wings, 105 mm) ; and the under-parts 

 washed with a rosy tinge. 



10. L. f. hicolor: Gaboon. This race, of which no material has 

 been available for stud3% is said to resemble guftahcs, but to lack the 

 white on the inner secondaries. 



In the case of the East African races, several factors have contrib- 

 uted to render the distributional facts confusing. Chief among these 

 is the matter of erroneous identifications. For example, van 

 Someren ^^ considers suhlacteus specifically distinct because both it 

 and miihiguus occur on Kilimanjaro. He writes, "whether this race 

 {amhiguus) interbreeds with L. suhlacteus in the Kilimanjaro area, 

 I am unable to say, but they both occur there." Sclater *^^ in writing 

 of suhlacteus states that it does not extend "very far into the interior; 

 though met with by Fischer at Komboko and Gros Aruscha, both 

 localities not far from Kilimanjaro; but the Boubous which I have 

 examined from that neighborhood obtained by Johnston and Hunter, 

 must be referred to L. aethiopicus am'higuus." Sjostedt ""^ obtained 

 only amhiguus in the Kilimanjaro region and records suhlacteus 



«« In Shelley, The birds of Africa, vol. 5, p. SOS, 1912. 

 «^Rev. Zool. Africaine, vol. 9, fasc. 3, 1921. 

 8SN0V. Zool., vol. 29, p. 118, 1922. 

 »» In Shelley, The birds of Africa, vol. 5, p. 318, 1912. 



'* Wissenschaftliche Ergebnisse der schwedischen zoologischeu Expedition nach dem Kili- 

 mandjaro . . . Deutsch-Ostafrika, 1905-6, etc., Vogel, p. 115, 1908. 



