131 



220e. Spilornis cheela floweri Swann, Syn. List 

 Accipitr., p. 81 (1920). [Tahkaman, Siam, 

 type in Brit. Mus.j 

 Siamese Serpent -Eagle. 



Wing (ad. unsexed) 411-424 mm. ; much 

 paler above and below ; wings strongly 

 shaded with grey ; sides of head slate grey ; 

 throat uniform with chest which is pale 

 ashy brown, slightly vermiculated; chest also 

 sparingly spotted with white like lower parts; 

 tail brownish black, with brownish white 

 median band and remains of a basal one ; 

 primaries with one black median band 

 below, besides terminal one ; under wing- 

 coverts rufous, with white spots, outer 

 edges white. 



Siam. 



220f. Spilornis cheela ricketti W. Sclat., Bull. 

 B.O.C., xl., p. 37 (1919). [Yamakan, 

 Fokien Prov., type in Brit. Mus. coll.J 

 Chinese Serpent-Eagle. 



" Resembling 5. c. cheela, but with upper 

 parts somewhat paler ashy brown, with a 

 purplish gloss, below dusty ashy ; trans- 

 verse banding on breast indistinct, often 

 not noticeable ; throat never black, but 

 like the breast, cheeks and ear-coverts grey, 

 not black ; slightly smaller wings, measur- 

 ing from 430 to 470 mm." — W. Sclat. 



S. China to 

 Upper Burma 

 (Chindwin dist.) 



220g. Spilornis cheela hoya Swinhoe, Ibis, 1866, 

 p. 304. \^Formosa.'\ 

 Formosan Serpent-Eagle. 



Nearly as large as S. cheela cheela, wing 

 470-481 mm. ; darker above and below ; 

 tail with the central pale band narrower ; 

 throat and ear-coverts blackish brown ; 

 chest nearly uniform brown, but showing 



Formosa. 



