356 Mr. J. n. Gurney's Notes on 



The following measurements are those of specimens which 

 appear to be referable to the smaller race [L. trivirgatus) : — 



Middle 



Wing. Tarsus. toe, s. u. 



in. in. in. 

 Presumed males in Norwich Museum : 



From Ceylon 7-G 2-1 M 



From Borneo 7-5 2-3 1-2 



Female obtained* in Formosa, and re- 

 corded by Mr. Swinhoe in ' The Ibis/ 



1866, p. 3!)o 9 2-75 1-62 



Presumed females in Norwich Museum : 



From Philippine Islands 8-1 2-1 1-2 



From Cambodia 8-8 2-2 1-2 



From Malacca 9-2 2-5 1-4 



From Sumatra 8-4 2-4 1-4 



From Borneo 8 2-5 1-2 



A specimen in the British Museum, from 



East Java, marked $ by Mr. Wallace 9 2-3 1'3 

 Anunsexed specimen, from Upper Pegn, 



recordedin'StrayFeathers,'iii. p. 24 8-6 27 



From the above particulars it appears clear that both the 

 larger and the smaller race vary much in their proportions, 

 and it seems to me not very easy to draw the line between 

 them. 



The next species to which I am desirous to allude is Astur 

 pectoralis, Bon., in treating of which Mr. Sharpe has omitted 

 to refer to the figure given of it in ' The Ibis ' for 1861, pi. 10. 



The Norwich Museum contains a presumed male, which 

 is not included in the list of the specimens of this Hawk re- 

 corded in 'The Ibis' for 1874 at p. 321. 



As the Leyden specimen, of which the measurements are 

 given by Mr. Sharpe, and that at Antwerp, of which the di- 

 mensions were recorded by Dr. Sclater in ' The Ibis ' for 1861, 

 appear by their size to be both female birds, I add the follow- 

 ing particulars of the supposed male which is preserved in 

 Norwich: — wing from carpal joint 9*1 inches; tarsus 2'1 ; 



* The Norwich INIuseum possesses a specimen from Formosa which I 

 believe to be the identical one above recorded ; but I make the length of 

 its wing 9-5 inches; the other measurements agree. 



