1863.] MR. A. R. WALLACE ON THE BIRDS OF BOURU. 31 



DiCRURUS AMBOINENSIS, 



Bicrurus amboinensis, G. R. Gray, P. Z. S. 1860, p. 354. 

 Hab. Bouru. 



Remark. — The specimens are rather larger and better-coloured 

 than those from Amboinaand Ceram, but otherwise agree with them. 



Campephaga marginata. 



Supra plumbea, subtus albo-cinerea ; loris fusco-nigris ; tectrici- 

 bus Cauda et alarum inferioribus albis ; remigibus et tectrici- 

 bus alarum majoribus nigris, albo marginatis ; rectricibus ex- 

 iimis utrinque tribus albo terminatis. 



Bluish lead-colour abore, ashy white beneath ; base of wings be- 

 neath and under tail-coverts white ; wings and tail black ; primaries 

 white-margined on the inner web near the base ; secondaries, ter- 

 tiaries, and greater wing-coverts white-margined towards the points ; 

 middle tail-feathers ashy, with a black tip, outer ones with the outer 

 margin and tip ashy, the next two with diminishing ashy tips ; bill 

 and feet black ; iris dark. 



Total length S\ inches ; wing 41 inches. 



Hab. Bouru. 



Remarks. — This species somewhat resembles C. plumbea, but is 

 smaller and paler beneath, and the bill is more slender. 



Tropidorhynchus bouruensis. 



Cinereo-bruyineus, subtus pallide cinereus ; gula et capitis lateri- 

 bus plumis subrigidis subsericeis ; alis caudaque subtus fuscis ; 

 rectricum lateralium utrinque duarum apicibus tenuiter fuhes- 

 centibus ; facie nuda nigra; protuberantia ad basin rostri nulla. 



Above ashy brown ; head somewhat paler, with lanceolate feathers, 

 the stems of which are black ; beneath pale ashy ; the plumes of 

 the throat and upper part of the breast and the marginal feathers of 

 the head and face somewhat rigid, of a silky lustre, and with darker 

 stems ; quills dusky, with the inner margins of a paler fulvous tinge ; 

 tail uniform dusky, the two outer feathers on each side with the apex 

 on the inner side of paler fulvous colour ; orbits and cheeks bare, 

 black ; bill black, without any protuberance at the base ; feet pale 

 lead-colour ; iris light olive. 



Length 14^ inches ; wing 6 inches ; tail 5\ inches ; bill, to front. 

 If inch. 



Hab. Bouru. 



Remarks. — This species is the subject of imitation by a bird of 

 quite distinct family (Oriolidae), as fully explained under Mimeta 

 bouruensis, which bird is the Tropidorhynchus bouruensis, Bp., ex 

 Lesson. 



Zosterops chloris. 



Zosterops chloris, Bp. Consp. Gen. Av. p. 398. 

 Hab. Bouru, Ternate, and Banda. 



" Iris pale brown ; bill dusky black above ; beneath and feet lead- 

 colour." 



r 



