284 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



In the female from Trang and the male from Domel Island the 

 region surrounding eye and lores is only a little lighter than the sur- 

 rounding region; the throat and chest have a dusky wash; and the 

 crown and back are darker than in the southeastern Siamese specimens. 

 They may not be the same but evidently are the form upon which the 

 name rests, which was described as "regiorte i)arotica cinerea nee alba." 

 U the specimens from southern and southeastern Siam should prove 

 separable, the name D. I. meridionalis Hachisuka*^ would probably 

 be available. D. I. salangensis is so widely different from D. I. leuco- 

 genis that it is really debatable whether it would not be better to give 

 it specific rank. 



Whether this is a resident form or only a migrant from farther north 

 is not known, nor has its breeding range been discovered. It is the 

 commoner of the two forms found in Siam during winter. 



Three males from Siam and one male from Domel Island measure: 

 Wing, 135-154 (138.7); tail, 122-129 (126.8); middle tail feathers, 

 98-103 (97.5); culmen, 21-22 (21.5) mm. Five females from Siam: 

 Wmg, 129-141.5 (137.4); tail, 122-130 (124.3); middle tail feathers, 

 94-103 (98); culmen, 21-22 (21.4) mm. It is evidently a smaller 

 bird with a shorter tail than D. I. leucogenis. 



CHAPTIA AENEA AENEA (VieUIot) 



Dicrurus aeneus Vieillot, Nouv. Diet. Hist. Nat., ed. 2, vol. 9, p. 586, 1817 

 (Bengal). 



Two males, Doi Nangka, November 17, 21, 1930; two males and 

 two females, Pang Meton (Doi Nangka), April 30 and May 3, 1931; 

 one female, Khun Tan, August 26, 1930; two males, Kao Pae Pan 

 Nam, February 19, 1934; one male, Hin Lap, October 3, 1932; one 

 male and two females, Pak Chong, November 26, 1929, June 20, 1934; 

 one male, Sakeo, near Krabin, May 8, 1928; one female, Ban Han, 

 Udon, March 17, 1929; one female, Ban Sadet, Sriracha, May 27, 1925; 

 one female, Huey Yang, Sriracha, August 4, 1932; three males, Klong 

 Yai, Sriracha, July 28, 1932; one male and one female, Nong Yang, 

 November 7, 1931; one female. Ban Tarn Dam, March 7, 1930; one 

 male, Chantabun, May 27, 1929; two males and three females, Kao 

 Sabap, November 4-19, 1933; three males and three females, Kao 

 Seming, Krat, October 13, 16, 1928,' January 1, 1930. Dr. Smith 

 also took a male in the Kiu Pang Valley, Salwiii District, Burma, 

 January 28, 1933. 



Dr. W. L. Abbott took a male at Maliwun, Tenasserim, March 24, 

 1900. 



Specimens from eastern and southeastern Siam in measurements 

 certainly belong with the northern form. How far south to the south- 

 west the present form goes I do not know, but probably to the neigh- 



M Dull. Brit. Orn. Club, vol. 47, p. 66, 1928. 



