1g17.| H.C. Ropinson: Birds from Pulau Langkawi. 151 
Common on Langkawi, Terutau and Pulau Butang in 
the Butang Archipelago, west of Langkawi. 
The island specimens seem smaller than a male from 
Trang which approaches the larger Himalayan form A affims 
(Blyth), wing about 305 against a maximum of about 260 
in the island birds. 
43. EURYSTOMUS ORIENTALIS ORIENTALIS, Sharpe. 
Eurystomus orientalis, Sharpe, Cat. Birds Brit. Mus. 
XVII, p. 33, pl. 11, fig. 1 (1892); Robinson and Kloss, Ibis, 
IQII, p. 32; Stresemann, Nov. Zool. XX, pp. 298-301 (1913); 
Robinson, antea, vol. V, p. 144 (1915). 
a. %. Koh Muk (Pulau Muntia), Trang, S.W. 
Siam. 6th January, 1917. No. 3859. 
Da cekasin ikalay ib wleontar S\N. Siam. roth 
January, 1917. No. 3871. 
‘Tris 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 ancther character aud 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 ovzentalis. 
There is no doubt that both races are migratory in the 
Malay Peninsula and that E. ortentalis orientalis breeds in 
the country also, which E. o. calonyx almost certainly does not. 
43. MERops viripis, Linn. 
Merops sumatranus, Raffles, Sharpe, tom. cit. p. 61; 
Robinson and Kloss, p. 37; Robinson, antea, vol. V. pp. 92, 146. 
Merops viridis, Hartert, Nov. Zool. xvii, p. 482 (1910). 
a. %. imm. Pulau Langkawi, 8th February, 1gog. 
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 in 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 Oustalet and 
others are more likely to be referable to migratory specimens 
of the Philippine M. bicolor, Bodd. 
