274 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



Kao Pae Pan Nam, Lomsak, February 18, 1934; one male, Wang" 

 Kien, Kanburi, March 12, 1934. 



Dr. W. L. Abbott collected an adult male at Bok Pyin, Tenasserim, 

 February 15, 1900; wing, 130 mm. 



The female is generally lighter than the male, but some specimens 

 marked as females are not different from the males. All specimens 

 with barring below, no matter how faint, I believe are young or have 

 not entirely acquired fully adult plumage. All the specimens with 

 some barring below have three or four of the outer primaries beginning 

 with the third or fourth with a large white spot on the inner web 

 toward the base. As the birds become older, they get darker, the 

 wings a deeper black, and the white spot on the inner webs of the 

 primaries seems to disappear. If my supposition is correct that the 

 dark birds represent an age character, then it must take several molts 

 to reach the fully adult plumage. A female from Nong Yang (no. 

 330940) is much lighter than the fully adult bird, the wings are black 

 but have a grayish wash on the outward webs of the primaries, and 

 the white spot on the inner webs of the primaries commences on the 

 second, there is a narrow white interrupted eye ring; and there are 

 indications of faint barring on the belly, I presume it is a specimen in 

 its second year. All the above specimens have the under tail coverts 

 buffy white, except two males (nos. 330941 and 333999) from Hupbon 

 and Kao Sabap, and they have them light grayish tipped with wliite^ 



Ten males in the above series measure: Wing, 117-126 (122.8) mm. 



The United States National Museum contains the type of Volvoci- 

 vora koratensis Kloss. It is an immature female of the present species 

 with faint bars on the belly and the white patch on the inner web of 

 the outer primaries beginning with the third; the lower mandible is 

 light colored. 



The National Museum also possesses the male from the Raheng dis- 

 trict recorded by Chasen and lOoss ^* as Lalage fimhriata indochinensis 

 IQoss. It is a gray bird, with the wing washed outwardly with gray 

 and the middle tail feathers gray, black toward the tip; the outer 

 primaries have the white patch on the inner wob toward the base, 

 commencing with the second; there are no bars on the belly. I take 

 it to be a bird collected after its second or third molt. Its wing 

 measures 118 mm; this is too much for the Jimbriata group, and so I 

 place it here for the present. 



It may be that two forms are represented in the above series, 

 but I think it best to regard the differences noted as age rather than 

 geographic. 



Lord Rothschild ^^ says he has received V. melaschistos and V. 

 melanoptera from the same localities and regards them as separate 



M Journ. Siam Soc. Nat. Hist. Suppl., vol. 7, p. 174, 1928. 

 » Nov. Zool., vol. 33, p. 300, 1920. 



