TURDINUS CRISFIFRONS. 



85) 



That the birds are identical in dimeusions will be seen from 

 the detailed measurements subjoined.* 



The colors of the soft parts varied according to individuals, 

 but not according- to localitj". The irides were red, mostly deep 

 red, or rhubarb red, in a few light red ; the upper mandible 

 varied from black to dark brown ; the lower from pale to very 

 pale, plumbeous ; the legs, were a more or less dark brown, 

 always tinged with red or purple of varying shades. 



Sex too has nothing to do with it ; of the whitest birds about 

 an equal number are respectively males and females. The 

 whitest of all (ami that has, besides all the other parts above 

 described, the greater part of the abdomen white and several 

 white feathers on the middle of the back) is, no doubt, a male. 



I think it quite possible that this variation may be seasonal — if 

 it is not, then it is the most extraordinary case of local albinism I 

 Lave ever heard of, since fully -%-ths of theWimpong birds are 

 affected by it, and gtbs strongly so, while frds show it 

 to such an extent as would, but for the connecting- links, fully 

 justify their separation as a distinct species. 



* Table of dimensions of T. crispifrous from various localities, recorded from fresh 

 specimens : — 



M 



