Raptorial Birds of the Maimj Archipelago. 7 



Bill black, lead-colour at base ; iris and cere yellow ; feet pale 

 orauge-yellovv. 



Hab. Malacca, Timor [Wall.); Java, Sumatra {Mus. Lugd.) ; 

 India {Jerdon). 



2. AcciPiTER RHODOGASTER (Schleg.) J NisKs virgatus rhodo- 

 gaster, Schleg., Mus. P.-B. Astures, p. 32 ; N. rhodogaster, 

 Schleg., Valkv. Nederl. Ind. pi. xii. fig. 5, Q^ 



Bill black ; cere dusky yellow, feet yellow ; iris bright chrome- 

 yellow. 



Hab. Celebes {TValL). 



3. AcciPiTER ERYTHRAUCHEN, G. B. Gray, p. Z. S. 1860, 

 p. 344) ; Nisiis erythrauchen, Schlegel, Valkv. Nederl. Ind. 

 pi. xiii. fig. 1 (?), 3, 4; Uraspiza erythrauchen, Kaup, P. Z. S. 

 1867, p. 177. 



Hub. EastGilolo, 6 [Wall.)', Batchian, S, Morty, $ {Mus. 

 Lugd.). 



This species is of the same form, size, and structure as A. 

 rhodogaster, and therefore belongs to Kaup's genus Teraspiza. 

 There is, in fact, hardly any difierence between these birds, 

 except the red collar and more numerous tail-bands of A. 

 erythrauchen. 



4. AcciPiTER RUBRTCOLLis, Wall., P. Z. S. 1863, p. 21, pi. 4; 

 Nisus cirrhocephalus ceramensis, Schleg., Mus. P.-B. Astures, 

 p. 39; N. erythrauchen, Schleg., Valkv. Nederl. Ind. pi. xiii. 

 fig. 2; Uraspiza erythrauchen, Kaup, P. Z. S. 1867, p. 177. 



Bill black, lead-colour at base ; iris golden-yellow ; cere and 

 feet yellow. 



Hah. Bouru, Morty Is.? {Wall.) ; Ceram {Mus. Lugd.). 



This bird has been confounded with A. erythrauchen by Prof. 

 Schlegel and Dr. Kaup, on account of the great similarity of 

 colour, and the fact of the smaller specimens being males and 

 the larger ones females. The slender tarsi and feet and very 

 long middle toe show that this bird belongs to the same group 

 as A. erythrauchen; but besides the difference of size and of the 

 colour of the under surface, there is an important structural 

 character which will, I think, distinctly separate them. In A. 

 rubricollis the tail is somewhat rounded, the outer rectrices 



