410 BTJCEK0TIB.T3. 



(1S75) ; B(mvier, Cat. Marclic, etc. p. 27 (1875) ; Elliot, Man. 



liiiccnd. 1)1. r,C, [text] (1878) ; JJocrii/e, Oni. Amjola, p. MO (1881) ; 



Holub u. Pah. Oni. Siulafr. p. 141 (1882); Sharpc, J. I, inn. Sur. 



xvii. p. 435 (1884) ; Salcad. Ann. Mus. Civ, Genov. xxi. pp. 103, 



1'Gl> (1884) ; Ayres, Ibis, 188G, p. 289 ; Hartert, J. f. O. 1886, 



p. 590. 

 E-liyncliaceros eivtlivorhvnchus. Cab. Sj- Heine, Mus. Ilcin. ii. p. 166 



(1860); id. J.f. O. 1878, p. 235; Schaloio, J.f. O. 1883, p. 348; 



Fisch. Zeit. f/cs. Ovn. i. p. 362 (1884) ; id. J.f. 0. 1885, p. 126. 

 Alophius erythrorliyuclius, Dubois, Bull. Mus. Belt/, iii. p. 218 



(1884). 

 Lophoceros erythiorliyncluis, Shellei/, Ibis, 1888, p. 65. 

 Buceros erythrorhynclius, var. carter, Sundev. Qifv. Kongl. Vet.- 



Akad. Fiirh. p. 108 (1850) ; Heur/l. Ibis, 1859, p. "343. 

 Buceros (Alopliius) erythrorhyncliua, var. leucopterus, Ilemjjr. l^- 



Elu-enh. Si/mb. Phys. An. folio aa, footnote 1 (1828). 

 Buceroa ruiirostris, Simdev. CEfv. Komjl. Yet.-Ahad. Fiirh. p. 108 



(1850). 



Adult male. Top of the head dark grey tinged with brown ; lores 

 and a broad stripe over the eye white, with dark shafts ; ear- 

 coverts, cheeks, and sides of neck white edged witli grey ; nape, 

 middle line of the upper half of the hack, feathered parts of throat, 

 front of neck and rest of underparts, under wing-coverts and base 

 of quills white ; rest of back brown, becoming almost black on the 

 rump and upper tail-coverts ; wing-coverts brown with large ter- 

 minal spots of white, except the majority of the greater secondary 

 coverts, which are nearly pure white ; primaries black, the first two 

 and the eighth (usuallj') spotted with white on the inner web only, 

 the intermediate ones on both, and the remaining quills immaculate ; 

 first secondary black, next three the same but margined on the 

 upper half of the outer web and spotted on the inner with white, 

 the fifth to the seventh have the terminal half white ; remaining 

 secondaiies and long scapulars dark drab, the former margined with 

 white ; centre tail-feathers dark brown, second pair black, remainder 

 black with the terminal quarter white, the fourth pair with a sub- 

 terminal fenestra of white in the black, which in the fifth pair is 

 enlarged into a great white space sometimes extending nearly to the 

 base of the feathers : naked skin round eye and on throat yellow ; 

 iris brown ; legs dusky ; bill red, blackish at the base of the lower 

 mandible. Total length 21 inches, wing 7'0, tail 8'2, tarsus 1-7. 



Adult female. Resembles the adult male in every particular 

 except that the bill is not quite so long. Total length 17-0 inches, 

 wing 7'8, tail 8-1, tarsus 1"6. 



Immature birds have more feathers on the throat than the adults, 

 and the base of the lower mandible is not black ; the plumage is 

 as above. 



Hah. Africa S. of about 17° N. lat. 



a. S ''''d- sk. 5th Cataract of the Nile. F. (ialton, Esq. [P.]. 



b. Inim. sk. Boguslund (Esler). I'urchased. 



c. Inini.sk. lliiyravgudd^', May (i/fSAY). Shavpe Coll. 

 rZ.cJad.sk. Maven, Feb. W. T. Blan ford, Esq. 



LC.]- 



