1863.] MR. A. R. WALLACE ON THE BIROS OF BOURU. 21 



Eos RUBRA, var. 



Psittacus borneus, L. 



P. ruber, Gm., Wagl. Mon. Psitt. p. 558. 



Hab. Bouru, Amboyna, Ceram, and Matabello Islands. 



The specimens are rather smaller than those from Amboyna, and 

 have more blue on the wing-coverts, and often a greenish tinge on 

 the wings and tail, which makes them agree with the descriptions of 

 P. borneus of the old authors. Might not Bouru have been mis- 

 taken for Borneo, and thus led to the erroneous name ? 



Note. — Besides the preceding five species of Psittaci, Bouru pos- 

 sesses also the Aprosmictus amboinensis ; but as a specimen was not 

 obtained by me, I have not included it in the present list. 



Haliastur leucosternus. 



Haliastur leucosternus, Gould, B. of Austr. i. pi. 4. 

 Hab. Bouru and the countries eastward. 



Baza reinwardtii. 



Lophotes reinwardtii, Schleg. & Miill. Verh. Ned. t. 5. 

 Hab, Bouru, the Moluccas, and Timor. 



Accipiter rubricollis. (PI. IV.) 



Supra nigro-plumbeus, subtiis albo-cinereus ; nucha et colli late- 

 ribus late et intense riifis ; genis cinereo-plumbeis ; gula ven- 

 treque albescentibus ; retnigibus rectricibusque obscure fasciatis. 



Above slaty black ; beneath very pale ash, shading into nearly 

 pure white on the throat, belly, and under tail-coverts. Back and 

 sides of the neck extending between the shoulders deep red-brown, 

 a lighter shade of which covers the sides of the breast ; the wings 

 and tail are crossed by obscure black bands, which on the lighter 

 undersides of the feathers become distinct blackish bands, less visible 

 on the outer tail-feathers. The under wing-coverts and the base and 

 margins of all the quills beneath are of a light rufous-buff. Bill 

 black, at the base plumbeous ; cere, orbits, and feet yellow ; iris 

 golden yellow. 



Length 14 inches; wing 8^ inches; tail 6i inches; tarsus 2-1- inches; 

 middle toe and claw 2-^ inches. 



The young bird is dusky above, with the feathers rufous-margined ; 

 beneath creamy white, with broad dusky stripes down each feather. 



Hab. Bouru, Ceram, and Gilolo. 



Remark. — This bird resembles on its upper surface A. erythrau- 

 chen, G. R. Gray (P. Z. S. 1860, p. 344), but is very much larger. 

 As the dimensions of that bird are wrongly printed, I will here 

 correct them. Instead of "length 11' 9", wing 8' 9"," as given, it 

 should be, "length 10' 9", wing 6' 9" "*. 



* Since reading this paper, I have seen Professor Schlegel's ' Catalogue of the 

 Birds in the Leyden Museum,' part 1, in which (Astures, p. 39) he describes this 

 bird under the name of Nisus cirrhocephalus ceramensis, which seems to be equi- 

 valent to making it a variety of N. eirrhocejihalus. Considering, however, the 



