5. HIEROCOCCTX. 239 



//. fi(Cfa.v, but differs in its smaller size ; the brownish-grey crown 

 and nape are separated from the brown of the back by a partial 

 collar formed by a rufous and white mottling on the back of the 

 neck. T'lil tipped with dirty white. Chin buff, like the throat ; 

 a broad dark brown moustachial band from below the eye is well 

 marked, and the dark stripes on the underparts are more sharply 

 defined and less rufous. Total length lU'5 inches, culmen 0-9, 

 wing o-(), tail 5-G, tarsus 0'7o. 



Hah. Tenasserim to the Salanga Islands, reoccurriug again in the 

 mountains of North-western Borueo. 



a. 2 ad. sk. Mergui Islands, Tenasserim (,/. Tweeddale Coll. 



Anderson). 



b,c.(S2 ad. sk. Tavoy, April 19 ( If. Da- Hume Coll. 



vison). 



cJ, e. S 2 ad. sk. Foot of Mt. Nwalabo, April Hume Coll. 



( W. Davison). 



f. c? ad. sk. Bankasoon, May IG ( W. Hume Coll. 



Davison). (Type of species.) 



<j, h, i. 5 ad. sk. Bankasoon, April, May, June Hume Coll. 



( W. Davison). 



k. Ad. sk. Baram, Sarawak. A. H. Everett, Esq. 



[P.]. 



6. Hierococcyx crassirostris. 



HierococcTX crassirostris, Jl'alden, Ann. $;■ Mag. N. H. 187:3, p. 305 ; 



ill. Tr. Z. S. viii. p. llC, pi. 18 (1872). 

 Cuculus crassirostris, Briuji/eman, Ahhandl. nat. Ver. Brem. v. 1876, 



p. 59. 



Adult (type of species). Upper half of head grey, slightly mottled 

 with white; nape and back of neck white, with broad dark ends 

 and partial bars to the feathers, passing from dusky grey on the 

 nape into brownish black towards the mantle : remainder of the 

 upper parts rufous-brown, slightly mottled with dusky ; tail less 

 rufous than the back, tipped with white and with a broad sub- 

 terminal bluck band : the remaining three black bands, which are 

 very distinct underneath, disa])pear on the two centre feathers, and 

 the pale intervening bands which are white on the outer pair of 

 feathers gradually become more rufous towards the centre one ; 

 beneath white, broadly barred with black on the throat and chest ; 

 under surface of wings uniform white, with the terminal half of the 

 quills rufous-brown ; bill black, passing into yellow on the basal 

 half of the lower mandible ; legs and claws yellow. Total length 

 15 inches, culmen 1, wing 8-3, tail 7"5, tarsus 0"8. 



Immature. Differs from the adult in having the upper half of the 

 head black, mottled with white above the eye and on the nape ; 

 back of the neck rufous, with broad black ends to the feathers ; 

 upper parts generally much brighter rufous ; the upper back, wing- 

 coverts, and innermost secondaries with broad dusky bars somewhat 



