12 Mr. Alfred R. Wallace on the 



to those within them and longer than the middle pair. It is 

 very unfortunate that Mr. Gould^s type-specimens were allowed to 

 go to America ; for I am not aware of a single authentic speci- 

 men of A. cruentus in this country. Prof. Schlegel {op. cit. 

 p. 41) determines this species to be the same as A.griseogularis, 

 G. R. Gray, from a single female specimen, said to be from 

 Australia, in the Leyden Museum ; but as he gives no indica- 

 tion of how this bird was obtained, or by what means it was de- 

 termined to be A. cruentus, Gould, and as Dr. Kaup agrees with 

 me that the two birds are widely different, it seems probable that 

 the Leyden bird is not really from Australia. Dr. Kaup says 

 that A. cruentus is " common in New Holland," but does not 

 say if he possesses specimens from that country. 



13. AcciPiTER APPROxiMANS (Vig. & Horsf.) ; Gould, B. 

 Austr. i. pi. 17. 



Hub. Lombock {Wall); Timor {Mus. Lugd.). 



Iris brown ; bill dusky, tip black ; feet yellowish. 



I possess one example which seems to belong to this species, 

 though it is smaller than Australian specimens. 



Male. Total length 18in. ; wing lOg in.; tail 8^ in., with 

 about 14 bands; fourth primary longest, third nearly equal, fifth 

 shorter; tarsus 2"3 in., middle toe 1*5 in. 



14. AcciPiTER poLiocEPHALUs, G. R. Gray, P. Z. S. 1858, 

 p. 170 ; Sclater, Ibis, 1860, pi. x. ; Nisus poliocepkalus, Schleg., 

 N. T. D. iii. p. 326. 



Hab. Aru Is., $ , Salwatty, ,^ , Dorey, ^ juv. {Wall); Ke Is. 

 {Mus. Lugd.) . 



Iris deep olive-brown ; cere, orbits, and feet orange-red. 



This very distinct species, characteristic of the Papuan Islands, 

 belongs to the genus Uraspiza of Kaup. Several specimens 

 have lately been received at Leyden, both from the Aru Islands, 

 where I first discovered it, and from the adjacent group of Ke. 



MiCRONisus, G. R. Gray. 

 {Tachyspiza, Kaup.) 

 MicRONisus soLOENSis (Horsf., Trans. Linn. Soc. xiii. p. 137) ; 

 Falco cuculoides, Tenim., PI. Col. 110, 129; Nisus soloensis, 

 Schleg., Mus. P.-B. Astures, p. M. 



