22 NILS GYLDENSTOLPE, ZOOLOGICAL RESULTS OF THE SVVED1SH ZOOLOQICAL EXFEDITIONS TO SIAM. 



Lower Siam. As already remarked by Harteet (Nov. Zool. vol. IX. 1902 p. 579) the 

 form called D. p. platurus Vieill. is only a synonym of the typical form. 



I therefore consider that the larger D. p. malabaricus Lath. inhabits Northern 

 Siam. This race is characterized by its long crest and its size is also larger than any other 

 form of the Racket-tailed Drongo, except D. p. grandis Gould. from the Himalayas 

 and Assam. 



Another allied form D. p. johni Hartert. inhabits the island of Hainan. This 

 species has also a long crest but is lacking the hair-like plumes. On an average it is also 

 decidedly smaller. 



12. Bhringa remifer. Temm. The Lesser Racket-tailed Drongo. 



Bhringa remifer: Robinson III p. 760. 



$ Doi Par Sakeng 1G / 7 1914. L = 247 mm.; W = 140 mm.; T = 143 mm.; B = 25 mm. — $ 

 Koon Tan 5 / 6 1914. L = 236 mm.; W = 130 mm.; T = 130 mm.; B = 26 mm. — Irides: reddish brown. 

 Bill: black. Legs: black. 



In the collection there are only two specimens of the Lesser Racket-tailed Drongo, 

 the one obtained at Doi Par Sakeng in Northwestern Siam and the other one at Koon 

 Tan in the Northern parts of the country. The specimens obtained are both females 

 and probably immature becanse there is not the slightest trace of the elongated outer 

 tail-feathers and the tail is almost square and not forked at all. The nostrils are densely 

 covered with bristles and plume-like feathers. 



This beautiful Drongo seems to be very rare in Siam and besides this record it has 

 only been found by Boden Kloss during his recent trip to Southeastern Siam. 



Fani. Oriolidre. 



13. Oriolus indicus. Jerd. — The Black-naped Oriole. 



Oriolus indicus: Oustalet 1903 p. 39; Muller p. 390; Robinson & Kloss p. 72; Williamson I p. 43; Gylden- 

 stolpe II; Gyldenstolpe III p. 168; Gairdner p. 149; Williamson II p. 201; Robinson III p. 758. 



<? Koh Lak 30 /n 1914. L = 230 mm.; W = 143 mm.; T = 93 mm.; C = 27,5 mm. — J 1 Koon 

 Tan May 1914. W = 152 mm.; T = 96 mm.; C = 29 mm. — $ Koon Tan Vs 1914. L = 266 mm.; W 

 = 149 mm.; T = 98,7 mm.; C = 30 mm. — $ Pa Hing 9 / 4 1914. L = 236 mm.; W = 142 mm.; T = 

 95 mm.; C = 28 mm. — Irides: brownisb red. Bill: pink. Legs: plumbeous. 



The Black-naped Oriole was very locally distributed in secondary and thin tree 

 jungle. In Northern Siam it was by no means as common as O. melanocephalus Linn. 

 which latter species also was obtained in the Siamese Malaya where O. indicus seemed 

 to be rather rare. 



The Black-naped Oriole is probably to be considered as a partially migratory bird 

 when the rains set in. Then it moves to more southern districts and it has been recorded 

 by Williamson as being very common in Bangkok where it is said to be far more abun- 

 dant than Oriolus melanocephalus Linn. 



