144 



to Koh Saniui. Tropical specimens ai'e said to be smaller than those 

 from northern seas. The one before us has the wing about 13.5 and 

 the culmen 2.6 inches. 



FALCONID^. 

 21. SPIZiETUS LIMNAETUS. 

 Spizaetus limnaetus (Horsf.) ; Sharpe, Cat. Birds Brit. Mus., i, 

 p. 272 (1874) ; Robinson and Kloss, tom. cit., p. 23. 



Two females from Koh Peinian, one in the ordinary and the 

 other in tlie melanotic phase. 



22. SPILORNIS PALLIDUS. 



antea, p. 90. 



Rather more richly coloured than the specimen from the mainland. 



" Female, iris bright yellow, bill and feet greenish lead, cere 

 yellowish." 



23. HALIASTUR INTERMEDirS. 



Haliastur intermedius Gurney ; Sharpe, tom. cit., p. 314 ; 

 Robinson and Kloss, tom. cit., p. 24. 



The local form of the Brarainy Kite is common everywhere along 

 the sea coast and for some distance inland in open country. 



24. HALIAETUS LEUCOGASTER. 



Haliaettis leucogaster (Gm.) ; Sharpe, tom. cit., p. 307 ; Robinson 

 and Kloss, tom. cit., 0.23. 



Two adults and an immature bird were obtained on Koh Samui 

 and Koh Pennan on both of which islands it was very common. 



The immature specimen is in a somewhat peculiar stage of 

 plumage resembling birds from Langkawi which we have, as 1 am 

 now inclined to think incorrectly, referi^ed to H. leucocoryphus 

 (Robinson and Kloss, torn, cit., p. 24). 



PANDIONID^. 

 25. POLIO AETUS ICHTHYAETUS. 



Polioaetus ichthyaehis (Horsf.) ; Sharpe, tom. cit., p. 452 ; 

 Robinson and Kloss, tom. cit., p. 30. 



An adult male from Koh Pennan. 



CORACIIDvE. 

 20. EURYSTOMUS ORIENTALIS. 



Eiirystomus orientalis (Linn.) ; Sharpe, Cat. Birds Brit, Mus., xvii, 

 p. 33, pi. ii, fig. i (1892) ; Robinson and Kloss, Ibis., 1911, p. 32. 

 Stresemann, Nov. Zool., xx, pp. 298-301 (1913). 



A male and two females from Koh Saniui and Koh Pennan 

 belonging to the black-tailed form and therefore nearer to the true 

 E. orientalis than to its subspecies. E. orient cdis calonyx (c. f. 

 Stresemann, loc. cit. supra). 



" Male, bill and feet coral, tip of bill and claws brownish black, 

 orbital skin brownish red, ii'is dark hazel." 



