I9I/-J H. C. Robinson: Birds from Pulau Langkawi. 151 



Common on Langkawi, Terutau and Pulau Butane in 

 the Butang Archipelago, west of Langkawi. 



The island specimens seem smaller than a male from 

 Trang which approaches the larger Himalayan form A affinis 

 (Blyth), wing about .505 against a maximum of about 260 

 in the island birds. 



43. EURYSTOMUS ORIENTALIS OKIENTALIS, Sharpe. 



Eurystomus orientalis, Sharpe, Cat. Birds Brit. Mus. 

 XVII, p. jj, pi. 11, tig. 1 (1892); Robinson and Kloss, Ibis, 

 1911, p. 32; Stresemann, Nov. Zoo!. XX, pp. 298-301 (1913) ; 

 Robinson, antea, vol. V, p. 144 (1915). 



a. '. Koh Muk (Pulau Munti.ii. Trang. S.W. 



Siam. 6th January, 1917. No. 3859. 



b. i. Pasir Raja, P. Lontar, S.W. Siam. 10th 



January, 1917. No. 3871. 

 " Iris hazel, bill coral, black tip, feet coral." 



Fairly common in all localities; also obtained at Pulau 

 Terutau and P. Langkawi in former years from November 

 to April. 



I have again carefully gone through the considerable 

 series of Rollers in the F.M.S. Museum and find that they 

 have been collected in every month of the year, except June 

 to September. There are, however, specimens dated July 

 from Malacca in the British Museum, collected by Davison. 



The series readily split on the general characters given 

 for E. orientalis and calonyx, viz., the greater amount of blue 

 on the outer tail feathers and inner secondaries in the latter 

 form, but there is also another character and that even more 

 marked, viz , the greater amount of blue on the primary 

 coverts in calonyx, these feathers being never more than lightly 

 edged with deep blue in orientalis. 



There is no doubt that both races are migratory in the 

 Malay Peninsula and that E. orientalis orientalis breeds in 

 the country also, which E. 0. calonyx almost certainly does not. 



43. MEROPS VIRIDIS, Linn. 



Merops sumatranus, Raffles, Sharpe, torn. cit. p. 61 ; 

 Robinson and Kloss, p. 37; Robinson, antea, vol. V. pp. 92, 146. 



Merops viridis, Hartert, Nov. Zool. xvii, p. 4S2 (1910). 

 a. ?. imm. Pulau Langkawi, 8th February, 1909. 

 F.M.S. Mus. No. 281/09. 



In view of the fact that this species does not occur 

 in Tenasserim or so far as is known further north 111 the 

 Peninsula than Bandon, while there are no recent records 

 from Siam proper, occurrences in Southern China and Lower 

 Cochin China are open to doubt. The records of Oustal' t and 

 others arc more likely to be referable to migratory specimens 

 of the Philippine .1/. bieolor, Bodd. 



