92 BULLETIN 186, UNITED STATES NATIONAL MUSEUM 



the eyelids edged brown ; the orbital skin slaty ; the maxilla blackish 

 at the base, greenish horn at the tip, otherwise blackish olive; the 

 mandible horny ; the skin of the throat fleshy pink ; the feet, toes, and 

 claws very pale green. 



The adult has the upperparts olive-brown, all feathers except those 

 of the crown narrowly edged and barred with black ; the throat with 

 black spots; a complete collar around the neck bright ferruginous 

 with black spots ; a broad olive-brown band across the upper breast ; 

 the remaining underparts bright ferruginous, much paler on the 

 abdomen and marked with black on the under tail coverts and the 

 sides of the body. The juvenile has the upperparts and wings dark 

 reddish brown, narrowly barred with black everywhere except on 

 the head ; the throat and neck pale brown ; the breast band and sides 

 of the body reddish brown, the feathers with white shafts and tips ; 

 the upper abdomen pale buff with broad black streaks ; the remaining 

 underparts whitish. 



I agree with Riley and de Schauensee that all Thailand (north of 

 the Peninsula), from the borders of Karen-ni to the Cambodian 

 frontier, is inhabited by but one race of this species and that it agrees 

 well with Delacour's olivacea, but am not convinced that olivacea is 

 separable from typical chloropus. The tone of brown of the upper- 

 parts and breast band varies among individuals and perhaps with 

 age of specimen; the ferruginous of the lower breast shows equal 

 variation. Certain skins from western Thailand could be called 

 olivacea, while others from extreme eastern districts are chloropus. 



T. c. cognacqi of Cochinchine is a well-marked form of the species. 

 The buff shaft streaks of the upperparts are not present in all in- 

 dividuals and appear also in some specimens of chloropus; the real 

 characters are the darker brown of the upperparts and breast band 

 and the pale, washed-out collar. 



BAMBUSICOLA FYTCHII FYTCHII Anderson 



YUNNANESE BAMBOO PARTRIDGE 



Bambusicola fytchii Anderson, Proc. Zool. Soc. London, 1871, p. 214 (Ponsee, 



western Yunnan). 

 Bambusicola fytchii fytchii, de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 



1938, p. 30 (Doi Pha Horn Pok) . 



The bamboo partridge is known within our limits only from Doi 

 Pha Horn Pok, where at 6,400 feet de Schauensee's collectors took five 

 males and one female in February 1938. It is not likely to occur else- 

 where in the northern provinces unless upon other high peaks of the 

 Daen Lao range. 



