400 Lieut. C. W. Mackworth-Praed on [Ibis, 



Lophoceros flavirostris flavirostris. 



Buceros Jiavirostris Riipp. Neue Wirb. 1835, p. 6, pi. ii. 

 [Taranta IMts., Abyssinia]. 



Lophoceros flavirostris flavirostris C. Grant, Ibis, 1915, 

 p. 273. 



<^. Tsavo River. 21st July. Wing 181 mm. 



? ?. „ 22ndJuly. „ 183,181mm. 



Iris dark brown ; bill yellow ; legs black. 



Common. 



Lophoceros erythrorhynchus erythrorhynclius. 

 Buceros erythrorhyticlius Temm. PI. Col. 36*^ Livr. 1823, 

 sp. 19 [Senegal]. 



hophoceros erythrorhynchus erythrorhynchus C. Grant, 

 Ibis, 1915, p. 273. 



? ad. Tsavo River. 22nd July. Wing 187 mm. 



? ? imm. „ 24th July. „ 172,169 mm. 



? . „ 25tli July. „ 181 mm. 



Iris brown or dark brown ; bill red ; legs black. 

 Common in the dry country. 



Lophoceros nasutus nasutus. 



Buceros nasutus Linn. Syst, Nat. 1766, p. 154 [Senegal]. 



Lophoceros nasutus nasutus C. Grant, Ibis, 1915, p. 270. 



^ imm. Tsavo. 2ud August. Wing 228 mm. 



^ . Ithauga. 4th October. „ 220 mm. 



Male imm. Iris yellow ; bill black ; legs brown. 



Male ad. Iris dark brown ; bill white and red; legs black. 



The Tsavo specimen is rather interesting. It gives 

 promise of being a much larger bird than the other. The 

 bill is shorter, deeper, black, and not serrated. The basal 

 part of the upper mandible is covered with a sort of sc.dy 

 white enamel just beginning to form. 



Lophoceros melanoleucus suahelicus 



Lophoceros 7nelanoleucus suahelicus Neum. J. f. O. 1905, 

 p. 187 [Morogoro, G.E.A.]. 



? . Thika. 26tli August. Wing 2i5 mm. 

 Iris yellow ; bill red; legs black. 



