19^^-] recently collected III 8lam. 193 



and southern India the wing-length ranged from about 

 147-160 mm, ; while the wings of Calcutta birds varied 

 from 162-170 mm. : these last are the typical form which 

 apparently extends through Burma to Siam. 



I have examined specimens in the Indian Museum col- 

 lection from south Sylhet and Tsagain, Burma, with wings 

 of 172 mm. Tweeddale (' Ibis/ 1873, p. 311) records speci- 

 mens from Tounghoo and Moulmein with wings of 173 and 

 165, and birds from Siam, mine being the most easterly on 

 record, have the wings 161-170 mm. I have also examined 

 younger birds with partly banded underparts from Manbhum 

 and Orissa (practically topotypes) having wings of 163 mm., 

 and, allowing for differences in age, the Indo-Chinese 

 examples seem exactly similar. 



\- 72. Volvocivora koratensis, sp. nov. 



1 ? . Lat Bua Kao, East Siam. Nov. 1916. - - '' 



Iris brown ; bill black, lower mandible horny below at 

 the base ; feet black. 



T. L. 247; T. 108 ; W. 120 ; Ta. 22; B.f.g. 24-5. 



Head, neck, and upper breast grey, the lores rather dusky ; 

 the feathers of the occiput and throat with dark shaft-stripes 

 and those below the eye with whitish spots. Back from 

 scapulars to tail-coverts grey tinged with russet, upper tail- 

 coverts palest. Lower breast, abdomen, and flanks grey 

 tinged with russet and faintly banded with narrow dusky 

 bars ; under tail-coverts creamy-white, the shorter feathers 

 obsoletely barred with dusky. Primaries black, 2nd, 3rd, 

 and 4th very narrowly edged with white ; secondaries black, 

 slightly washed with grey on the outer webs and narrowly 

 edged with pale grey ; primary-coverts black, very narrowly 

 edged with pale grey ; greater and median coverts black, 

 edged with grey like the secondaries; lesser coverts grey 

 like the scapulars. Tail black, the median pair of feathers 

 slightly tinged with grey proximally ; the other feathers 

 black tipped with white, the outermost pair having the white 

 about 8 mm. in depth, but gradually decreasing in the others 

 until it can only just be seen on the outer middle pair. 



