378 MESSRS' ROBINSON AND KLOSS ON 



S ad., S imm. Nam Chuk, Pakclian Estuary, P. Siam, 24-25 

 Feb. 1919 [Nos. 4194, 4238]. 



2 S ad., 5 . Mamoh, Pakchan Estuary, P. Siam, 26-28 Feb. 

 1919 [Nos. 4268, 4287, 4311]. 



7 S ad., c? imm., 2 5 . Koh Lak, Ratburi, P. Siam, 3-9 April 

 1919 [Nos. 4987, 5048, 5091-3, 5114-5, 5168-9, 5218]. 



" Iris dark ; bill black ; feet black or greenish black ; young 

 birds with the gape orange." 



Total length d , HO, 113. 115, 115, 115, 113, 115, 115, 110, 

 112. 113, 112, 112, 112, 109, 112, 113; 2, 103, 103, 110, 112, 103; 

 wing ^ , 52, 52, 51, 52, 54, 53, 52, 51, 51, 51. 52, 49, 51, 52, 48, 52, 

 51 ; 9 , 51, 50, 51, 47, 47 ; tail <S , 47, 41, 41, 43, 42, 40, 40, 43, 42, 

 38, 40, 37, 40, 38, 35, 38, 40 ; $ , 38, 35, 36, 34, 30 ; tarsus S , 15, 13, 

 14, 13.5, 15, 13, 13.5, 15, 13, 14, 13.5, 14, 14, 13, 14.5, 13, 14; 9, 

 13.5, 12, 14.5, 13.5, 12 ; bill from gape d , 18, 18, 18, 18, 19, 20, 18.5, 

 18, 18, 19, 17, 17.5, 17.5, 18, 17.5, 16.5, 18; 9, 20, 18, 18, 17. 

 17.5 mm. 



The above are measurements of adults only. 



The species is common over the whole of P. Siam especially 

 on the coasts and islands, extending southwards as far as Penang. 

 Further down the Straits it is replaced by G. j. ornata (Less.) 

 [pectoralis auct.], which is distinguished by being much brighter 

 yellow beneath, by having in males, the forehead metallic violet, and 

 by the absence of the maroon band separating the metallic colour of 

 the breast from the yellow of the belly. 



In our large series, however, a bird from Chong, Trang, has 

 the forehead broadly metallic, while another from Krongmon has a 

 few metallic frontal feathers, as has a bird from Terutau, the speci- 

 men from Pulo Mohea listed above, and one from Koh Lak [No. 

 5091]. In other respects, however, these birds are typical jlann- 

 Tnaxillaris, with the belly pale yellow and the maroon pectoral band 

 well developed. 



A. Hume & Davison, Stray Feathers, vi, 1878. E« O. Grant, Fasciculi Malayensos, iii (Birds), 1950. 



B. Miiller, Die Ornis der Insel Salanga, 1882. F. Robinson and Kloss, Ibis, 1910-11. 



C. Oates, Birds Brit. Barmah, Vols, i iSi ii, 1883. CS. Gairdner, Journ. N. H. Soc. Siam, i, 1915. 



D. Bonhote. B. Z. S. 1901, Vol. i. H. Robinson, Journ. F. M. S. Museums, v, 1915. 



JOURN. NAT. HIST. SOC. SIAM. 



