of a Zoological Collect iun made in Sumatna, Part II. 333 



with a round black spot. The tail is short and black, with 

 rufous variegations. The top of the head is marked with black, 

 and there is a black stripe over the ears. There is no naked 

 space about the eyes, in which it agrees with the Coturtiices, 

 but the legs of the male are armed with blunt spurs, sometimes 

 double. The bill is black; the irids yellowish-grey. The 

 hind toe has only a very small horny tubercle in place of a naih 

 which approximates this species to the T. viiidis. 



3. TETRAO cuRviRosTius. 

 Lanting. J_vJU! 



This approaches nearest to the T. Gingicus, but must be con- 

 sidered a distinct species. 



It is larger than the common Partridge, and is remarkable by 

 having the upper mandible arched, and much longer than the 

 lower, often forming a nail-like hook at the point. The top 

 of the head and neck are dark brown ; the throat and cheeks 

 rufous. The upper part of the breast is of a blueish-grey or 

 lead-colour, which extends nearly round the neck ; the back 

 and upper part of the wings are brown variegated with black 

 and grey, while the shafts of the feathers are yellowish. The 

 lower part of the back, wing- and tail-feathers are dull yellow- 

 ish finely mottled with grey, and marked with some black 

 points. The abdomen is light ferruginous, passing into white 

 behind. The bill is black ; the legs whitish or lead-coloured, 

 armed with short thick spurs. There is a naked space behind 

 the eyes ; irids orange. The female is a little smaller than the 

 male, and the young ones want the lead-grey on the neck. 



4. TETRAO 



