THE COMMON HILL PARTRIDGE. 



73 



it might differ also in mandellii, of which no sexed specimens 

 have as yet been obtained ; but Mr. Mandelli, who has now pro- 

 cured some dozen specimens, informs me that this is not the 

 case : — 



Upper back and f 

 interscapulary 

 region. 



Feathers conspicu- 

 ously barred or - 

 fringed with 

 black. 



II. 



Feathers unbarred 

 and unfringed, 

 or scarcely per- 

 ceptibly fring- 

 ed darker. 



III. 



Feathers freckled 

 and mottled 

 with darker 

 brown, shafts 

 pale buffy. 



I. Breast pale uni- 

 form grey. 



2. Breast uniform, 

 tawny, or ferru- 

 ginous olive. 



3. Breast rufescent 

 olive, barred 

 black. 



4. (a.) Breast pale 



ashy, surmounted 

 by a broad white 

 band. 



(b.) Breast grey, 

 tinged rusty. 



Top of head greyish 

 olive, more or 

 less black spot- 

 ted. 



Middle of throat 

 pale fawn colour, 

 densely black 

 spotted. 



Chin, throat and 

 sides of neck 

 white, spotted 

 with black, not 

 enclosed by a 

 black band 



Top of head uniform 

 bright chestnut. 3 



Middle of throat un- 

 spotted rufous ? 



Lower margin of rufous of throat 

 sharply denned by a black line, breast 

 grey. 



2. Lower margin of rufous of throat 

 sharply defined- by a black line, breast 

 maroon chestnut. 



Lower margin 

 of rufous of throat 

 meeting grey of 

 breast without 

 any intervenng 

 black line. 



Centre of throat 

 more or less uni- 

 form black. 



Centre of throat 

 rufescent spotted 

 with black. 



I. Chin, throat and sides of neck white, 

 spotted with black spots, enclosed in an 

 irregular black band. 



A. atrogularis. 

 A. brunneopectus. 

 A. chloropus. 



A. iorqueolus. 



A. rufogularis. 



A. mandellii. 



A . intermedins. 



A . tickelli {t. e. 

 Tenasserim form 

 of rufogularis). 



A. charltoni, 



IO 



