68 U.S. NATIONAL MUSEUM BULLETIN 226 



Chaetura leucopygialis (Blyth) 



Acanthylis leucopygialis Blyth, Journ. Asiatic Soc. Bengal, vol. 

 18, pt. 2, for August 1849, p. 809 (Penang Island, xVlalaya). 

 Range: "Reported from the peninsular provinces (Nakhon Si 

 Thammarat, Trang). 



Genus APUS Scopoli 



Apus pacificus pacificus (Latham) 



H[irundo]. pacifica Latham, Index ornithologicus, suppl., 1801, 



p. Iviii ("New Holland"; type locality inferentially restricted 



to New South Wales, by Mathews, Nov. Zool., vol. 18, 1912, 



p. 292). 



Range: A visitor from northeastern Asia, reported on migration or 



in winter from the southeastern provinces (Chanthaburi), the central 



plains (Bangkok), and the peninsular provinces (Surat Thani). 



Apus pacificus cooki (Harington) 



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



No. 185, Feb. 27, 1913, p. 57 (caves of the Gokteik Gorge [lat. 



22°20' N., long. 96°52' E.], Hsipaw State, Northern Shan State, 



Burma). 



Range: Reported from the northern plateau (Chaiya Prakan, Chiang 



Mai) and on migration or in winter from the peninsular provinces 



(Surat Thani). 



Apus affinis subfurcatus (Blyth) 



Cypselus subfurcatus Blyth, Journ. Asiatic Soc. Bengal, vol. 18, 



pt. 2, for August 1849, p. 807 ("Malay Peninsula, "j^c?6 Sclater, 



Ibis, 1892, p. 83; type locality commonly restricted to Penang 



Island, Malaya, one of the localities mentioned by Blyth). 



Range: Reported from the northern plateau (Chiang Mai), islets 



of the Inner Gulf, and the peninsular provinces from Prachuap Khiri 



Khan south to Trang. 



Genus CYPSIURUS Lesson 



Cypsiurus parvus infumatus (Sclater) 



Cypselus infumatus P. L. Sclater, Proc. Zool. Soc. London, for 

 1865, pt. 3, March 1866, p. 602 (Banjermasin, Borneo). 

 Range: Not yet reported from the eastern plateau, but otherwise 

 found throughout the country from Chiang Rai to the extreme South. 



