246 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



Cbiengmai from October to March and states that in February and 

 March 1931 it was almost abundant; Gyldenstolpe ® adds the locaHty 

 Khun Tan. 



Family EURYLAIMIDAE: Broadbills 



EURYLAIMUS JAVANICUS PALUDUS Chasen 



Eurylaimus javanicus pallidus Chasen, Bull. Raffles Mus., no. 10, p. 43, 1935 

 (Kao Nawng, Bandon, Siam). 



One female, Pang Sok, August 24, 1926; three males and one female, 

 Pak Chong, March 3, 1927, June 21, 22, 1934; two males, Hin Lap, 

 December 7, 12, 1931; one male, Hupbon, November 8, 1931; one 

 male and two females, Nong Khor, near Sriracha, September 25, 1925, 

 February 10, 1927; one male, Ban Sadet, Sriracha, June 1, 1925; 

 three males, Klong Yai, Sriracha, July 22, 25, 1932; one immature 

 male, Kao Bantad, Krat, December 29, 1929; two males and one 

 female, Kao Sabap, 3,000 feet, October 30-November 17, 1933; one 

 male, Kao Soi Dao, Trang, January 29, 1934. 



Dr. W. L. Abbott collected one adult male, one adult female, and 

 •one immature female, Lay Song Hong, Trang, September 2, 6, 1896. 

 He describes the soft parts as: Bill bright blue, distal half of upper 

 mandible pale yellowish green, tip and a line along commissure on 

 both mandibles black; iris blue; feet pale purplish fleshy. 



The immature female was taken September 2. It is about adult 

 size and has just started to acquire the adult plumage. Above it 

 resembles the adult, but the back is a brownish black and the yellow 

 spots are lighter; the pileum is snuff brown, darker on the nape, with 

 very fine light shaft streaks and a vinous tinge in certain lights; the 

 lower parts are barium yellow, with dusky edges to the feathers of 

 the chest and sides. On the sides of the neck and the center of the 

 chest and belly the vinous plumage of the adult is being assumed. 



The above large series from Siam compared with three males from 

 eastern Sumatra are paler below, especially the under tail coverts. 

 The most striking difference, however, is in the color of the throat 

 above the black jugular band; in all the Siamese specimens this region 

 has a dull Indian purple sheen, while in the Sumatran males it is 

 lacking or much reduced. Above, the Siamese series averages darker 

 on the pileum; this difference might not hold in a larger series from 

 Sumatra. 



Apparently there is little or no difference in size between the two 

 series. Ten males from Siam measure: Wing, 102-111 (107.3); taU, 

 58-67.5 (63.9); culmen, 23.5-25.5 (24.5) mm. Three males from 

 eastern Sumatra: Wing, 105-109.5 (107.5); tail, 58.5-64 (61.2); 

 culmen, 24-25.5 (24.8) mm. 



« Ibis. 1920, p. 606. 



