264 BULI^TIN 172, UNITED STATES NATIONAL MUSEUM 



RIPAHIA CHINENSIS CHINENSIS (Gray) 



Hirundo chinensis Gray, Illustrations of Indian zoology, vol. 1, no. 2, pi. 35, fig. 

 3, 1830 (China). 



One male and two females, Hang Turn Kai, January 15, 1933. Dr. 

 Smith collected these in holes at night. He also took a male and a 

 female at Mehick, Burma, January 13, 1933. 



The only specimens with which I have been able to compare the 

 above series arc three males and one female from Luzon, which are 

 certainly darker above; below the throat and chest are darker also, 

 but the size is about the same. The wings of the four Luzon birds 

 measure 83-90 (86.8 mm); the five Burma (2) and Siamese (3) speci- 

 mens, 84-91 (88 mm). 



Gyldenstolpe ^* found it common in Chienghai and along some of 

 the larger rivers of northern Siam. De Schauensee ^* reports it 

 common over the Mekong and Mekoke. Lowe '® records it from 

 Um Pang. 



The form breeds practically all over India east to Assam, Burma, 

 northern Siam, Laos, Tonkin, Annam, Yunnan, and Formosa. The 

 bird found in the Philippines is different and has been named Riparia 

 chinenns tantilla Riley." Stuart Baker ^* gives Hirundo chinensis 

 Gray as being preoccupied by Hirundo sinensis Gmelin, 1789, but 

 under Article 34 of the International Rules of Zoological Nomen- 

 clature the two are not homonyms. 



KBIMNOCHEUDON CONCOLOn SINTAUGENSIS Baker 



Krimnochelidon concolor sintaugensis Baker, Bull. Brit. Orn. Club, vol. 54, p. 24, 

 1933 (Sintaug, 6,000 feet, Shan States). 



One adult and one immature male, Doi Nangka, November 10, 

 1930, April 28, 1931 ; one adult female, Doi Hua Mot, August 12, 1934. 



The two specimens taken at Doi Nangka were recorded as Krimno- 

 chelidon concolor,''^ as the present form had not been separated at that 

 time and no specimens were (or yet are) available for comparison. De 

 Schauensee ^° secured two specimens at Chiengao, 4,500 feet, January 

 12, 17, and one at Chiengniai, 4,500 feet, July 13, These are all the 

 Siamese specimens known to me. 



The immature male taken by Dr. Smith at Doi Nangka was col- 

 lected April 28. 



The form ranges from the Shan States eastward to Siam, Laos, 

 Tonkin, and Annam. 



'« Kungl. Svenslta Vet.-Akad. Handl., vol. 58, no. 2, p. 83, 1910. 



M Proc. Acad. Nat. Sci. Philadelphia, vol. 81, p. 660, 1930. 



w Ibis. 1933, p. 270. 



" Proc. Biol. Soc. Washington, vol. 48. p. 147, 1935. 



» The fauna of nritlsh India, Birds, ed. 2, vol. 7, p. 225. 1930 



'• Journ. Siam Soc. Nat. Hist. Suppl., vol. 9, p. 155, 1933. 



•• Proc. Acad. Nat. Sci. Philadelphia, vol. 88, p. 237. 1934. 



