1. OKIOM'S. 205 



feathers ; entire under surface of body bright yellow, iucludiiig the 

 under wing- and tail-coverts. 

 Hab. Sula Islands. 



a. (S ad. sk. Sula Islands, 1861. A. R. Wallace, Esq. [0.]. 



(Type of species. ) 



b, e. c? ad. sk. • Sula Islands, 1861. A. K Wallace, Esq. [C.]. 

 d, e. 2 ad. sk. Sula Islands, 18G1. A. R. Wallace, Esq. [C.]. 

 /, g. Juv. sk. Sula Islands, 1861. A. R. WaUace, Esq. [C.]. 



Subsp. a. Oriolus suluensis. 



Like 0. frontatus, but stouter ; primary-coverts and quills black, 

 without any yellow tips to the feathers; terminal third of outer 

 tail-feathers yellow. Total length 11-5 mches, culmen 1-45, wing 

 6-65, tail 4-8, tarsus 1-U5. 



Ilab. Sooloo archipelago. 



a, b, c. Ad. sk. Si Butu, Sooloo Islands. Hugh Low, Esq. [P.]. 



d. Juv. sk. Si Butu, Sooloo Islands. Hugh Low, Esq. lP-]- 



14. Oriolus formosus. 



Oiiolus acrorhyuchus, Schl. .)/«.<. P.-B. Coraces, p. 105. 



Oriolus formosus, Cab. J.f. O. 1872, p. 392; Briiggeni. AbhamU. 



Brem. v. p. 61. 

 Broderipus formosus, Roicley, Orn. Misc. ii. p. Ivi. 



Adult male. General colour above olive-greenish, the scapulars 

 and wing-coverts being of the same colour, most of the coverts dull 

 blackish at the base and on the inner webs of the greater series; 

 bastard wing and primarj^-coverts black, the latter slightly shaded 

 with grey at the tips ; quills blackish, the primaries externally 

 washed with grey, inclining to white on the margins of the longest ; 

 the secondaries olive-green on the outer web, blackisli on the inner ; 

 a narrow frontlet of bright golden yellow ; crown of head and nape 

 black, as also the feathers in front of and below the eye and those 

 above the ear-coverts ; cheeks, ear-coverts, sides of neck, and a collar 

 round the hinder neck bright golden yellow ; rump and upper tail- 

 coverts bright yellow ; tail-feathers bright yellow, with black bases, 

 the latter diminishing towards the outermost, the two centre feathers 

 olive-green, shaded with black near the shaft and towards the end 

 of the feathers, the tips bright yellow ; entire under surface of body 

 bright golden yellow, including the thighs and under wing- and 

 tail-coverts ; bill flesh-colour. Total length 12-1 inches, culmen 

 1-5, wing 6-8, tail 5"2, tarsus 1"15. 



Adult female. Similar to the male, but a little more green on the 

 back. Wing 6-4 inches, tail 5-2. 



Youmj female. Similar to the adult female, but with all the 

 colours much duller : the frontal patch of yellow more extended, the 

 black crown less so, and slightly streaked with yellow ; greater 

 wing-coverts somewhat tipped with yellow ; tail olive-greenish, the 

 yellow as in the adult liird, but less bright and only subterminally 



