186/.] DR. J. J. KAUP ON NISI AND ASTURES. 177 



Beak and cere 13 to 14 mm. high. The entire inner wing with 

 bands throughout ; all the lower parts the same. Tail with from 

 fifteen to seventeen narrow bands. 



This is a stronger bird than the preceding, and has a proportion- 

 ally smaller middle digit. 



Wing 252 to 270 mm., tail 185 to 200 mm., tarsus 70 to 72 mm., 

 middle digit 34 to 36 mm. 



Hab. Common in New Holland, scarcer in Timor (perhaps only 

 of accidental occurrence) . 



5. Uraspiza approximans, Yig. & Ilorsf. 



Astur apj)roximans,N'\^. & Ilorsf. Linn. Tr. xv. p. 181. 



A. radiatus et/asciatus. 



A. radiatus, Cuv. lleg. An. p. 332. 



Falco radiatus, Temm, PI. Col. 123. 



Nisus {Urospiza^ approximans, Kp. Falc. p. 182. 



Nisus approximans, Schleg. Valkv. p. 63. 



Similar in colouring to the preceding, but the largest of all. 



Wing 262 to 306 mm., tail 200 to 230 mm., tarsus 72 to 83 mm., 

 middle digit 36 to 45 mm., beak 15 to 16 mm. high. 



This species has the largest number of bands on the tail, viz. 

 from fourteen to nineteen. Schlegel counts from twenty to twenty- 

 four. 



Hab. Common in New Holland ; more scarce in Timor. 



All these species have a reddish neck-collar, more or less distinct, 

 which disappears towards the back of the neck. The old birds, 

 JJ. sulaensis excepted, have the lower parts reddish, with white 

 bands. 



The following species, according to Schlegel, deviates more from 

 the usual colouring than does U. sulaensis: — 



6. Uraspiza erythrauchen, G. R. Gray. 



Accipiter erythrauchen, G. R. Gray, P. Z. S. 18607 p. 344. 

 A. rubricollis,Vf3X\. P. Z. S. 1863, p. 21, pi. iv. 

 Nisus cirrhocephalus ceramensis, Schleg. INI. d. P.-B. Ast. p. 3!j. 

 N. erythrauchen, Schleg. Valkv. p. 60, t. 13. 



About the size of N. cirrhocephalus. Upper part of back fiery 

 reddish brown; sides, belly, and flanks light ash-grey; upper half 

 of inner wing rusty red, with bands. When young of a blackish 

 brown, with rusty-red edges of the wings and rusty-red cross bands 

 on the secondaries. Below rusty yellow, with shaft- stripes on the 

 breast, and arrow-shaped spots on the sides and flanks ; lower tail- 

 coverts nearly white ; tail with eight or nine moderately wide bands. 



Beak and cere 12 mm. high, wing 166 to 214 mm., tail 125 to 

 168 mm., tarsus 53 to 71 mm., middle digit 31 to 42 mm. 



Hab. Ceram, Batjan, Morotai, Halmachera, and Burn. 



I have not seen Ace. imliocephalus, G. R. Gray (P. Z. S. 1858, 

 p. 170, and P. Z. S. 1859, p. 153), and therefore am not able to 

 place it. A female shot by Mr. Wallace on the Aru Islands has a 



Proc. Zool. Soc. — 1867, No. XII. 



