Birds from British East Africa and Uganda. 273 



Of i}\\%,Buceros leucopareus Hempr. & Ehr. (Synib. Pbj's., 

 Av. 1828, folio aa. footnote 1 : Abyssinian coast-lands), and 

 Lophoceros mediarius Sharpe (P. Z. S. 1895, p. 498 : Dabulli, 

 Somaliland) are synonyms. 



Lophoceros erythrorhynchus caffer. 



Buceros erythrorhynchus var. caffer Sund. CEfv. Vet.-Ak. 

 Forh. 1850, p. 108 : Caffraria superior. 



Having tbe bar on tlie outer tail-featbers complete across 

 both "webs, white streak over the eye not too well defined, and 

 having on the average less white on the middle secondaries. 



Range. Damaraland and Nyasaland to Bechuanaland and 

 the western Transvaal. 



Of tliis, B. rufirostris of Sund. op, cit. becomes a 

 synonym ; as also ap})arently does Lophoceros damarensis 

 Shelley (Ibis, ]888, p. 66: Otjimbinque, Damaraland). In 

 tbe latter case I have carefully examined the two specimens 

 on which Shelley based his name and I consider they are 

 albinistic forms ; the characters are not, therefore, those of 

 a distinct race, especially as all other Damaraland birds 

 are identical with those from other parts of southern Africa. 



In tbe K. Sven. Vet.-Akad. Handl. Jan. 1911, pt. 5, p. 73, 

 Lonnberg discusses the variation in size of the bill of these 

 Hornbills, and thinks that habitat and soil have a great 

 bearing on the question ; in this he is possibly not far 

 wrong. 



144. Lophoceros flavirostris flavirostris. Yellow-billed 

 Hornbill. 



Buceros flavirostris Riipp. Neue Wirb. 1835, p. 6, pi. ii. : 

 Taranta-GebirgSj Abyssinia. 



a. S ^^- Kozibiri River, 2400 ft. Jan, 1. 



b. c? ad. Turkwel River, 1800 ft. Jan. 15. 



Total length in flesh : 22i inches. Wing : 210 mm. 



The Kozibiri specimen is very worn, and the one from the 

 Turkwel is in good dress. 



[Irides yellow; bill yellow, cutting-edge and tip black, 

 base of both mandibles reddish, white spot before eye; bare 



