47. ACijyi.r.rrM. 385 



47. ACRYLLIUM. 



Tvpe. 



Acrylliuiu, Grnij, Lht Gen. B. p. (Jl ( 1S40) A. vulturiiuuii. 



A^i'ylliuiu, (rraij, List (ialliare Brit. Mm. p. 4-'i (18(57) A. vultui-iiuiiu. 



Head and upper part of neck naked; a horseshoe-shaped l)an(l of 

 feathers extending from the ear-coverts round tlie nape. Plumage 

 of neck, chest, and mantle developed into long pointed hackles. 



Tail long, wedge-sha[)ed, composed of IH feathers ; middle pair 

 much elongated and pointed, one-third longer than the second pair 

 and much more than twice as long as the outer pair. 



Tarsi in the male with four or five knobs on each. 



1st primary shorter than 2nd, which about equals 9th ; 6th 

 slightly longest. 



liamje. East Africa from the Paiigani R. to Somali-Land, and 

 westwards to Kilimanjaro. West Africa ? 



1 . Acryllium vultarinum. 



Numida vultiuiiia, JIardir. P. Z. S. 1S;U, p. .'y) [W.Africa] ; Gould, 

 Icon. Ai'. pi. 8 (I8;i7) ; Grai/, Gen. B. iii. p. .501 (184.5); Hartl. 

 Si/st. Orn. Wi-Ht-Afr. p. 200 (18-57); id. J. f. O. 1801, p. 2()(5 ; 

 Layard, Ibis, 18(31, p. 120 [X.W. .Madagascar, domestic] ; Sclat. 

 P. Z. 8. 18(i;5, p. 12<;; Poll. Ned. Tijdschr. p. 39 (18G3) ; Lmjard, 

 Ibis, 18(34, p. 133 [East coast north of Zanzibar I ; Grai/, List Gal- 

 ling Brit. Mus. p. 44 (18(37) ; Kirk, P. Z. S. 1867, p. 953 [Lamu] ; 

 Schl. Si- Poll Rccherch. Maditij. p. 119 (1867); Schd. Ibis, 1808, 

 p. 501 ; id. P. Z. S. 1870, p. 280 [Barava, Somali] ; Fin.^ch ^ 

 Hartl. rii/. Osf-Afr. p. .575 (1870); Kirk. P.Z. S. 1872, p. 789; 

 Elliot, Mm. P/ttis.'ii. pi. 38 (1872); Fi.sc/ier ^- Reichenow, J. f. O. 

 1880, p. 140 [Harava]; Sclat. List Vert. An. p. 29(5, fig. 53 (1883) ; 

 Shelley, Ibis, 1885, p. 414 [Somali-land] ; id. P. Z. -S'.4889, p. .371 

 [Useri River, Tana, Duruuaj; Fischer, J. f. O. 1885, p. 119 

 [Barava, Massa, Pangani R.]. 



Acryllium vidturiuum. Gray, List Gen. B. p. 61 (1840); Hartl. 

 J. f. O. 1S54, p. 209; Cab. J. f. 0. 1878, p. 244 ; Fischer, J. f. O. 

 1878, p. 2'.t4, 1879, p. ,300 [R.'Tana]; id. Zcit. yes. Orn. i. p. 381 

 (1884) [Chaga Dist.J. 



Adult male. Head and upper half of the neck naked, with the 

 exception of a horscshoe-shapcd band of velvety reddish-brown 

 feathers extending Irom the ear-coverts round the back of the nape ; 

 lower neck, mantle, and chest covered with long poiutetl hackles, 

 black with wide white shaft-stripes, and margined with i)ale cobalt 

 except the shorter ones at the back of the neck, the longer hackles 

 are also more or less minutely dotted witii white and gradually 

 merge into the long pointed feathers of the upper back, which are 

 black with narrower white shaft-stripes and minutely marked all 

 over with wavy dotted lines of white ; lower back, rumj), wing, 

 tail-coverts, and thighs black, minutely dotted all over with white, 

 and covered with small, rounded, black-edged s])ots ; sides aud flanks 

 similar, but washed with purple ; tlie secondary-coverts have also 



VOL. .vxn. 2 c 



