BIRDS FROM SIAM AND THE MALAY PENINSULA 511 



parts as iris dark brown or reddish brown; upper mandible black, 

 lower mandible leaden ; feet leaden blue. 



The three males from Singapore Island (the type series of heliocrita) 

 show no constant differences in plumage from the series from farther 

 north in Peninsular Siam. The bills are rather short, especially that 

 of the type, but the other two can be matched by more northern 

 examples. Singapore Island is too small and near the mainland, with 

 no phj^siographical peculiarities, to support a distinctive race of this 

 genus. 



Two males and one female (including the type of A. I. melanchima 

 Oberholser) from East Sumatra are somewhat darker above than the 

 Trang series, and it is quite likely a larger series would show other 

 differences. The specimens measure beyond the average for mainland 

 birds, so for the present I will not consider the name for the mainland 

 race. 



The specimens from Tenasserim and southeastern Siam apparently 

 do not differ from Peninsular Siam examples except that the latter 

 appear to be somewhat smaller. 



Five males from Singapore Island (3) and the Malay States (2) 

 measure: Wmg, 62.5-70.5 (67.4); tail, 40-43 (41.7); culmen, 33-40.5 

 (36.6) mm. Ten males from Peninsular Siam (9) and Tenasserim (1): 

 Wing, 62-69 (66); tail, 39-44 (41.2); culmen, 35-40.5 (37) mm. Two 

 males from East Sumiatra: Wing, 70-72.5; tail, 42-44; culmen, 

 39-40 mm. 



I have examined no specimens from India, except the three Tenas- 

 serim birds listed above and two additional males from the same prov- 

 ince. It is quite possible that A. pusilla Blyth is the proper name for 

 the Siamese form. 



A. I. antelia ranges from southeastern Siam and southern 

 Tenasserim through Peninsular Siam to the Malay States. 



Family CHALCOPARIIDAE: Rubycheeks 



CHALCOPARIA SINGALENSIS KORATENSIS KIoss 



Chalcoparia singalensis koratensis Kloss, Ibis, 1918, p. 218 (Lat Bua Kao, eastern 

 Siam). 



One male, Bangkok, July 7, 1924; two males and one female, Pak 

 Chong, May 11, 1925, November 20, 27, 1929; two males and one 

 female. Lam Klong Lang, Pak Chong, June 5, 11, 1925; one male, 

 Tlia Chang, Pak Chong, March 18, 1927; one male, Sakeo, near 

 Krabin, May 3, 1928; two males and two females, Lat Bua Kao, 

 August 7-9, 1929; two males and two females, Nong Khor, near 

 Sriracha, September 27-October 1, 1925, March 20, 1926; one female, 

 Hupbon, near Sriracha, May 25, 1925; one female, Chantabun May 

 27, 1929; one male and three females, Kao Seming, Krat, October 10, 



