1921} Bopven Kross: New and Known Birds. 209 
Specimens examined from North Siam, East Siam 
(topotypes), South-East Siam, South Annam (14 ¢,9 2) 
2. Chalcoparia singalensis interposita Robinson and Kloss, 
subsp. nov. 
Males with rufous of foreneck extending over the upper 
breast and ending gradually. Remaining lower parts not 
so brightly yellow as in C. s. koratensis but less greenish 
than in C. s. singalensis. 
Females like C. s. koratensis. 
Specimens examined from Bangkok, Siam, south 
through the North Malay Peninsula to lat. 6° 30’ N. (11¢é, 
Mey: 
Types. Adult male from Takuapa, West Coast Penin- 
sular Siam. Collected by H. C. Robinson and C. Boden 
Kloss on 18th February, 1919. Adult female from Ban Kok 
Klap, Nakon Sri Tamarat. Collected by H. C. Robinson 
and E. Seimund on 30th June, 1913. 
3. Chalcoparia singalensis singalensis (Gmelin). 
Molacilla singalensis Gmelin Syst. Nat. I, 1789, p. 964 (Malacea : 
Oberholser det.). 
Males with rufous of foreneck and upper breast as in 
C. s. interposita but with remaining lower parts a rather 
greener yellow. 
Females with the breast and abdomen distinctly greener 
than in koratensts and interposita. 
Specimens examined from Perak to Johore, South 
Malay Peninsula (123,99). 
4. Chaicoparia singalensis sumatrana Kloss, subsp. nov. 
Males with the rufous of the foreneck and breast 
extending still further down towards’ the abdomen and the 
latter more tinged with green than in C. s. singalensis. 
Females rather more greenish below than in C. s. 
singalensis. 
Specimens examined from the Ophir to Bencoolen 
districts. Western Sumatra; and Deli, North Eastern 
Sumatra. (96,59). 
Types. Adult male from Mt. Talamau, 400 metres, 
and female from Tanangtalu, 1,000 metres, Ophir district, 
Central Sumatra. Collected by E. Jacobson on 27th April, 
1917 and 10th May, 1915. Collector’s numbers 891 and 
4,553. 
5. Chalcoparia singalensis borneana Kloss, subsp. nov. 
As in C. s. interpostta but rufous of the foreneck and 
upper breast rather deeper in both sexes. 
Specimens examined from various part of Sarawak. 
(US Gig La) 
Types. Adult male from Bukar, Samarahan, Sarawak, 
obtained by F.M.S. Museums collector on 26th October, 
