250 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



of white in the tail from the southern part of the range toward the 

 northern. It is variable, however. 



Chasen and Kloss '® record this broadbill from the Raheng District, 

 western Siam ; Lowe ^^ encountered it 40 miles east of Um Pang in the 

 same general region ; Kloss ^* records it from Lat Bua Kao in the east. 

 These records seem to define the limits of its distribution to the west, 

 north, and east in Siam, whence it has been found from the south- 

 eastern part of the country westward and south throughout Penin- 

 sular Siam. 



The range of the fonn extends from Cochinchina and Cambodia 

 westward through the southern half of Siam to Tenasserim and 

 down Peninsular Siam to the Malay States. 



C. m. macrorhynchus (Gmelin) has httle or no white in the tail and 

 a large bill and is confined to Borneo. 



C. m. lemniscatus (Raflles) occurs in Sumatra and Banka. It is 

 similar to the mainland form but has a larger bill; it is doubtfully 

 distinct. 



Seven males from Borneo measure: Wing, 96-105 (101.6) ; tail, 82-92 

 (86.9); culmen, 24.5-26.5 (25.5) mm. Three males from Banka (1) 

 and Sumatra (2): Wing, 100.5-107.5 (102.7); tail, 80-91 (85.3); 

 culmen, 24-26.5 (25.3) mm. Four males from Trengganu (1) and 

 Patani (3): Wing, 97-105 (101); tail, 76-86 (82.7); culmen, 23.5-24.5 

 (24) mm. Four males from Trang (2) and Bandon (2): Wing, 94-101 

 (96.6); tail, 76-86 (82.9); culmen, 22-23.5 (22.6) mm. Ten males 

 from southwestern (2) and southeastern (8) Siam measure: Wing, 

 99-105 (102); tail, 84-90 (87.8); culmen, 22.5-25 (23.4) mm. 



Only one specimen has been available for examination from the 

 Malay States (Trengganu), except for some old Malacca sldns. 



SERILOPHUS LUNATUS LUNATUS (Gould) 



Eurylaimus lunatus Gould, Proc. Zool. Soc. London, 1833, p. 133, 1834 (Rangoon, 

 Burma) . 



One male and one female, Khun Tan, September 2, 1030; one 

 female, Khun Tan Mountains, 4,300 feet. May 11, 1933; one male and 

 two females, Doi Hua Mot, August 13, 27, 1934. Dr. Smith gives 

 the soft parts as follows: Bill pale turquoise, pale yellow at the base; 

 lower lid pale lemon; legs and feet pale green, nails pearly green; 

 iris brown. 



De Schauensee '* assigns specimens from Chieng Dao, northern 

 Siam, to S. I. stolidus of Peninsular Siam, but the three above 

 specimens do not agree with three from Kao Luang, Nakon Srita- 

 marat. They are lighter on the rump and tertials than the Penin- 



i« Journ. Siam Soc. Nat. Hist. Suppl., vol. 7, p. 172, 1928. 



I' Ibis, 1933, p. 282. 



i»Ibis, 1918, p. 114. 



» Proc. Acad. Nat. Sci. Philadelphia, vol. 86, p. 24fl, 1934. 



