428 BULLETIN 18 6, UNITED STATES NATIONAL MUSEUM 



the throat dark gray; the upper breast, the sides of the lower breast, 

 and the flanks orange-rufous; the center of the lower breast and the 

 abdomen white; the under tail coverts white, broadly margined with 

 olivaceous-brown toward the base. The adult female differs chiefly 

 in having the forehead, crown, and nape concolorous with the back 

 and in having the chin and throat white, more or less heavily streaked, 

 especially at the sides, with dark gray. Younger birds of either sex 

 resemble the old female but have the greater upper wing coverts and 

 the inner secondaries narrowly tipped with ashy white. 



TURDUS DISSIMILIS Blyth 



Black-breasted Thrush 



T[urdtis] dissimilis Blyth, Journ. Asiat. Soc. Bengal, vol. 16, 1847, pp. 144-145 



(Lower Bengal; Himalayas). 

 Turdus dissimilis, de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 1938, p. 30 



(Doi Pha Horn Pok). 



De Schauensee's collectors took an adult male and an adult female 

 of this thrush on Doi Pha Horn Pok, 6,000 feet, January 23 and 28, 

 1938. 



The specimens are labeled as having the irides light brown ; the bill, 

 feet, and toes orange. 



The old male has the entire head, neck, and breast black; the re- 

 maining upperparts slaty gray; the remaining underparts bright 

 orange-rufous, becoming white on the center of the abdomen; the 

 under tail coverts white, more or less suffused with orange-rufous; 

 the under wing coverts and axillaries orange-rufous. The adult fe- 

 male has the entire upperparts olivaceous-brown; the chin white, 

 changing on the throat and breast to light brown, each feather with a 

 blackish-brown terminal spot; the remaining underparts as in the 

 male. 



GEOKICHLA CITRINA INNOTATA Blyth 



Indo-Chinese Orange-headed Ground Thrush 



Oeocichla innotota [sic] Blyth, Journ. Asiat. Soc. Bengal, vol. 15, 1846, p. 370 



(Nicobar Islands and Malaya ; type locality restricted to the Malay Peninsula, 



by Blyth, ibid., vol. 16, 1847, p. 146). 

 Oeocichla innotata, Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., 1916, p. 46 



(Khun Tan). 

 Oeocichla citrina innotata, Gyldenstolpe, Ibis, 1920, p. 478 (Khun Tan). 

 Oeokichla citrina innotata, de S-chatjensee, Proc. Acad. Nat. Sci. Philadelphia, 



1934, p. 211 (Doi Suthep).— Deignan, Journ. Siam Soc. Nat. Hist. Suppl., 



1936, p. 112 (Doi Suthep).— Riley, U. S. Nat. Mus. Bull. 172, 1938, p. 411 



(Khun Tan). 

 Oeokichla citrina citrina, Riley, U. S. Nat. Mus. Bull. 172, 1938, p. 411 (Khun 



Tan). 



