154 BULLETIN 172, UNITED STATES NATIONAL MUSEUM 



fleshy brown, lower mandible pale yellowish fleshy; angles of mouth 

 pale yellow; inside of mouth pale fleshy. 



This is considerably smaller than stellatus and differently marked, 

 the throat being white barred with black. 



Gairdner^* records it from the Petchaburi District; Robinson and 

 Kloss ^^ record a male from Tasan, Chumpon, and mention a female 

 in Air. Williamson's collection from Naihoot, Langsuen. They 

 express some doubts of its identity, however. 



The species occurs from southern Tenasserim through Peninsular 

 Siam to the Malay States and Borneo. 



Family CAPRIMULGIDAE: Goatsuckers 



CAPRIMULGUS MACRURU9 BIMACULATUS Peale 



Caprimulgus bimaculatus Peale, U. S. Exploring Expedition, vol. 8, p. 170, 1848 



(Singapore). 

 Caprimulgus macrurus anamesus Oberholser, Proc. U. S. Nat. Mus., vol. 48, 



p. 593, 1915 (Tanjong, Kalong, Singapore Island). 



Four males and four females, Bangkok, January 19 and July 23 

 1924, August 3-6, 1926; one male and one female, Lem Sing, Chan- 

 tabun, June 8, 1926, March 6, 1930; one female, Sriracha, April 20, 

 1934; one male, Knong Phra, April 14, 1929; one male, Aranya, July 

 17, 1930; one male, Kao Pae Pan Nam, Lomsak, February 18, 1934; 

 one male, Patalung, July 5, 1929 ; two males and one female, Bangnara, 

 Patani, June 2, 1924, July 3, 19, 1926. 



Dr. W. L. Abbott obtained five males and two females in Trang 

 (Prahmon, March 13 and 24, April 14; Lay Song Hong, September 6 

 and December 19, 1896; near Kao Nok Ram, January 5, 1899, and 

 Trang, January 28, 1899) ; one male and two females, Singapore 

 Island, May 15-26, 1899, and two males, Telok Besar, Tenasserim, 

 March 1, 1904. There are two males and one female, collected by 

 C. Boden Kloss at Tanjong Kalong, Singapore, November 2-26, 

 1899, in the United States National Museum. Dr. Abbot gives the 

 soft parts as: Iris dark brown (bill fleshy brown, tip black; feet fleshy 

 brown, claws dark horny brown. 



Many of the Siamese specimens are in molt or immature and not 

 suitable for measurement or comparison. These I have disregarded. 

 Starting with the Siamese series (mostly from Bangkok) there is a 

 gradual diminution of size in specimens from there down Peninsular 

 Siam until Singapore is reached, but the difference is not great and 

 not worthy of being recognized by name. 



The wings of four males from Siam proper measure 203-209 

 (206) mm; two males from Tenasserim, 197-205 mm; five males from 

 Trang, 190-200 (196.2) mm; three males from Singapore, 185-191 

 (188) mm; the type of bimacidatus, 198 mm. 



>■ Journ. N'at. Hist. Soe. Siam, vol. 1, p. 150, 1915. 

 » Journ. Nat. Hist. Soc. Siam, vol. 5, p. 118, 1923. 



