126 BIRDS OF TENASSERIM. 



I give the size of wing of a number of specimens 



I might multiply measurements, but the above T conceive are 

 sufficient to show that, from the extreme south of the Malay 

 Peninsula, there is no appreciable variation in size, and the 

 same may be said of plumage. 



I do think that, taken as a body, the heads of the southern 

 birds average slightly browner, and those of the north slightly 

 greyer ; but browner headed birds are equally met with in the 

 north, and greyer ones in the south, and this slight difference in 

 the average shade cannot possibly constitute grounds for specific 

 separation. 



Note that I only unite Javan birds on the Marquis of Tweed- 

 dale's authority. Wagler and ethers give the wings of Javan 

 specimens considerably shorter than those of any specimens 

 that we have. 



Again, the Marquis of Tweeddale unites sondiacus of Wallace 

 fully described in Salvadori's work loc. cit., with Sumatran and 

 Malaecau specimens under the name fuscoalbidus applied by Sal- 

 vadori to the Bornean specimens. But Wallace gives the wing 

 as 2 88, agreeing therefore with the dimensions given for the 

 Javan form. 



Is it possible that a second smaller race occurs both in 

 Sumatra and the Malay Peninsula, and that canieapillus, a 

 distinct and larger race, also extends to both of these ? 



We have collected largely in the southern portion of the 

 Malay Peninsula, but we have come across no specimens with 

 the Avings appreciably less than the dimensions above given. 

 Unfortunately, Salvador! does not give the dimensions of the 



