172 TIJIELIIU^. 



1. Hylia prasina. 



Sylvia prasina, Cass. Proc. Phihtd. Acad. 1855, p. 325. 



Stiphrornis superciliaris, Hartl. J. f. O. 1855, p. 355 (ex Temm. 



MS.). 

 Chloropeta superciliaris, Hartl. Orn. Westafr. p. 60 (1857) ; id. J. 



f. O. 1861, p. 111. 

 Hvlia prasina, Cass. Proc. Philad. Acad. 1859, p. 40 ; Heine, J. f. O. 



1860, p. 129 ; Sharpe, Ibis, 1870, p. 447 ; id. Cat. Afr. B. p. 32 



(1871) ; id. ^- Bouvier, Bull. Soc. Zool. France, 1876, p. 306 ; 



Oustal. N. Arch. Mies. (2) ii. Bull. p. 104 (1879) ; Bocage, Orn. 



Angola, pp. 285, 555 (1881). 

 Dryuioica prasina, Gray, Hand-l. B. i. p. 202, no. 2840 (1869). 



Adult. General colour above dull olive-green ; lesser and median 

 wing-coverts like the back ; greater and primary-coverts, bastard 

 ■wing, and quills dusky brown, externally edged with olive-green 

 like the back ; tail-feathers olive-brown, washed on the outer webs 

 with yellowish olive, a little lighter than the back ; crown of head 

 rather more dusky olive-green than the back ; loral spot blackish, 

 surmounted bj" a tolerably well-defined streak of dull olive-yellow, 

 extending from the base of the nostrils to above the ear-coverts ; 

 feathers round the eye and ear-coverts olive-yellow, the upper part 

 of the latter blackish, forming as it were a blackish streak through 

 the e3-e ; cheeks and under surface of body light ashy, washed 

 faintly with olive-yellow here and there ; sides of the breast dusky 

 ash-colour ; throat paler ; sides of body, flanks, and thighs more 

 distinctly washed with olive-green; under tail-coverts mottled, 

 olive-greenish in the centre, with yellowish-white margins ; under 

 Aving-coverts and axillaries whitish washed with olive-yellow; 

 quills below dusky brown, inner edges ashy whitish ; bill black. 

 Total length 4:"6 inches, culmen 0'55, wing 2*5, tail 1'7, tarsus 

 0-75. 



Young. Distinguished by their yellowish biU, and by the uniform 

 yellowish-green colour of the upper surface, without the duskj- head, 

 the eyebrow tinged with ochreous buff ; under surface of body dingy 

 olive, tinged with ochreous yellow. 



Hah. West Africa, from the Gold Coast to the Congo. 



a, h. Ad. sk. Gaboon. P. B. DuChaillu, Esq. 



[C.]. 

 e. Inim. sk. Gaboon {Dn Chadlu). K. B. Sharpe, Esq. 



d, e. Ad. et juv. Fantee (Auhinii). E. B. Sharpe, Esq. 



sk. 

 /. Ad. sk. Fantee ( Ussher). H. B. Sharpe, Esq. 



g. Ad. ek, Takwa range, Wasa province. Capt. Burton and 



Capt. Cameron [P.]. 



