158 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



Malay Peninsula birds the same as those of Sumatra as previous 

 authors have done. After measuring and comparing the various 

 specimens, except from the islands off the west coast of Sumatra, I 

 can detect little or no difference between speciniens from Sumatra, 

 the Malay Peninsula, Rliio Archipelago, the Anambas, and Natuna 

 Islands, Banka, and Borneo, but from the last two localities there are 

 not enough specimens to decide. The form found in Java, H. I. 

 longipennis, is smaller and the gray of the rump extends farther 

 foward on the back. 



Hemiprocne longipennis harterti ranges from Tenasserim and south- 

 west Siam south through the Malay Peninsula and Sumatra to Banka, 

 the Rio Archipelago, Anamba, and Natuna Islands, and Borneo. 

 Other forms occur on the islands off the west coast of Sumatra and in 

 Java and Bali. Robinson and Kloss ^^ state it is common in north- 

 western and Peninsular Siam ; de Schauensee ^^ records it from Nakon 

 Sritamarat, June. 



HEMIPROCNE COMATA COMATA (Temminck) 



Cypselus comatus Temminck, Nouveau recueil de planches coloriees d'oiseaux, 

 vol. 4, livr. 45, pi. 268, 1824 (Sumatra). 



One male and one female. Ban Kiriwong, July 13 and 25, 1928; 

 one male and two females, Kao Chong, Trang, August 27, 1933. 



Dr. W. L. Abbott collected a male at Tyching, Trang, July 22, 

 1896 ; a male and a female on the Bindings, Straits of Malacca, April 

 14, 1900. 



The range of this form extends from southern Tenasserim south 

 through the Malay Peninsula to Sumatra, the islands off the west 

 coast of Sumatra, the Rliio Archipelago, the Natuna Islands, and 

 Borneo. Robinson and Kloss ^^ report it fairly abundant in Trang 

 and the rest of the Peninsula ; de Schauensee ^^ records a male from 

 Nakon Sritamarat, June 4. 



The form occurring in the Philippines has been separated as Hemi- 

 procne comata major. It is larger than H. c. comata and the white on 

 the belly is more extensive. 



Family MICROPODIDAE: Swifts 



MICROPUS PACIFICUS COOKI (Harington) 



Cypselus pacificus cooki Harington, Bull. Brit. Orn. Club, vol. 31, p. 57, 1912 

 (Goteik Caves, northern Shan States). 



One male and one female, Tha Lo, Bandon, September 24, 1931. 

 These two specimens are darker above, the light throat patch and 

 rump band are restricted, and the dark shaft streaks on the throat 



»» Journ. Nat. Hist. Soc. Slam. vol. 5, p. 145. 1923. 



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



•'Ibis, 1911, p. 38. 



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



