118 BUCEROTID.E LOPHOCEROS 



Otjimbinque ; other localities are Schmelen's Hope (Andersson in 

 Bt. Mus.) and Omaruru, whence the South African Museum pos- 

 sesses three examples procured by Mr. A. W. Eriksson. 



433. Lophoceros leucomelas. Yellow-billed Hornbill. 



Buceros leucomelas, Licht. Verz. Sailgeth. u. Vb'g. p. 17 (1842). 



Buceros flavirostris (nee Eiipp.}, Ayres, Ibis, 1871, p. 260 ; 1879, 

 p. 295 [Magaliesberg] . 



Tockus flavirostris, Gurney in Anderssori 's B. Damaraland, p. 210 

 (1872) ; BucUey, Ibis, 1874, p. 365 ; Shelley, Ibis, 1875, p. 82 

 [Natal] ; Sharpe, ed. Layard's B. 8. Afr. pp. 130, 808 (1875-84) ; 

 Elliot, Monogr. Bucerot. pi. li (1877) ; Gates, Matabeleland, p. 304 

 (1881) ; Holub & Pelz. Orn. Siid-Afrikas, p. 141 (1882). 



Lophoceros leucomelas, Shelley, Ibis, 1888, p. 67 ; Grant, Cat. 

 B. M. xvii, p. 414 ; Shelley, B. Afr. i, p. 115 (1896) ; Sharpe, Ibis, 

 1897, p. 498 ; Woodivard Bros. Natal Birds, p. 100 (1899) ; 

 Alexander, Ibis, 1900, p. 102 [Zambesi] ; Marshall, ibid. p. 250 

 [Mashonaland] . 



" Mkoto " in the eastern Transvaal (Francis). 



Description. Adult male. Crown of the head ashy-black with 

 black streaks ; lores, eyebrows, sides of the head and neck pearly- 

 grey with fine black shaft-lines ; mantle and back brownish-black, 

 with a white stripe down the centre of the upper half ; wing-coverts 

 like the back, with large rounded spots towards the tips of the 

 feathers ; primary quills black, with a small white spot on the 

 outer web of the third to seventh; the first four secondaries are 

 black, the fifth is edged with white, the sixth and seventh are 

 almost entirely white, the others brown with a white edging ; the 

 two pairs of central tail-feathers are black throughout, the third 

 pair with the terminal third only white, the fourth and fifth with 

 the increasing amount of white, with sometimes traces of a black 

 cross band ; below, the few feathers on the throat are grey, the 

 breast is also grey, with very distinct black streaks on the sides of 

 the feathers, the lower breast and rest of the under parts pure 

 white. 



Iris yellowish-white ; bill, without defined casque, yellow ; along 

 the cutting edges of the mandibles and at the tip dark purplish- 

 red ; naked skin round the eye and on the throat dark pink (yellow 

 in the dried skin). 



Length about 19'0; wing 7-4 ; tail 8-1 ; culmen 3-1 ; tarsus 1-8, 



t ^ 



