BIRDS FROM SIAM AND THE MALAY PENINSULA 161 



reports it rather common on the highest ridges of Doi Sutep in winter, 

 leaving in April ; this would indicate that it is only a winter resident 

 in Siam. Lowe ^^ found it not rare in western Siam and took two 

 females 40 miles east of Umpang. 



It ranges from Assam and Burma, south to Manipur, the Andamans, 

 northern and southeastern Siam into Cambodia, Cochinchina, and 

 Laos; occasionally it straggles as far south as the Malay States. 



RHAPIDURA LEUCOPYGIALIS (BIyth) 



Acanthylis leucopygialis Blyth, Journ. Asiat. Soc. Bengal, vol. 18, p. 809, 1849 

 (Penang). 



Dr. W. L. Abbott collected one male and two females in Trang 

 (near base of Kao Nom Plu, March 11, 1897; Trang, March 12, 1897); 

 one male, the Bindings, April 16, 1900. He gives the color of the 

 soft parts as: Iris dark brown; bill black; feet bluish fleshy. 



This is a small, glossy, purplish-black swift; rump grayish with 

 black shaft lines; upper tail coverts long and reaching beyond base of 

 spines; the latter comparatively long and very fine. 



One of the females, taken by Dr. Abbott in Trang, March 12, had 

 almost mature eggs. 



This species ranges from southern Tenasserim south through 

 Peninsular Siam to the Malay States, Sumatra, Banka, and Borneo. 

 De Schauensee ^* secured a male at Nakon Sritamarat, June 6 ; Robin- 

 son and Kloss " say that it is probably common in southwestern and 

 Peninsular Siam but hard to obtain. 



COLLOCALIA FRANCICA GERMANI Oustalel 



Collocalia germani Oustalet, Bull. Soc. Philom. Paris, 1876, p. 1 (Condore 



Island). 



One female, Singora, June 29, 1929; one male and three females, 

 Koh Pangan, July 24-27, 1931. 



Dr. W. L. Abbott collected four males and seven females in Trang 

 (Prahmon, February 24, 1896; Tyching, April 18 and July 25, 1896; 

 Trang, September 4, 5, 1896, February 10 and 12, 1897, and Decem- 

 ber 27, 1898). He gives the soft parts as: Iris blackish brown; bill 

 black; feet dark brownish flesh, becoming black on toes and claws. 



Gyldenstolpe ^^ records it from Koh Lak; Robinson, under the name 

 C. merguiensis, from Koh Samui and Koh Pennan (Pangan) ^^ and 

 from Pulo Lontar.^^ 



The range of this form extends from the Mergui Archipelago to 

 southwestern Siam, Peninsular Siam, Indo-China, and the Philippines. 



»» Ibis, 1933, p. 481. 



" Proc. Acad. Nat. Sci. Philadelphia, vol. 86, p. 266, 1934. 



»» Journ. Nat. Hist. Soc. Siam, vol. 5, p. 144, 1923. 



M Kungl. Svenska Vet-Akad. Uandl., vol. 66, no. 2, p. 106, 1916. 



•"Journ. Federated Malay States Mus., vol. 5, p. 146, 1915. 



w Journ. Federated Malay States Mus., vol. 7, p. 154, 1917. 



