THE TRUE PARTRIDGES. I43 



Range. — Mount Dulit, Sarawak, Borneo, at an elevation of 

 4,000 feet. 



A pair of this fine Francolin were obtained by Mr. C. Hose. 



THE TRUE PARTRIDGES. GENUS PERDIX. 

 Pei'dix^ Briss. Orn. i. p. 219 (1760). 

 Type, P. perdix (L.). 

 Differs from the preceding genera in having the tail com- 

 posed of either sixteen or eighteen feathers, nearly equal in 

 length, the outer pair being only slightly shorter than the 

 middle pair, which are more than half the length of the wing. 

 The first primary flight-feather is intermediate in length between 

 the seventh and eighth, and the fourth is slightly the longest. 

 The feet are without spurs in either sex, and the plumage of 

 both is alike or slightly different. 



The four species may conveniently be divided into two 

 groups, each containing two species. 



A. Tail with eighteen feathers ; chest and breast not barred 

 with black (species i and 2, pp. 143-149). 



B. Tail with sixteen feathers; chest and breast barred 

 with black (species 3 and 4, pp. 150-15 1). 



A. Tail with eighteen feathers ; chest a?id breast 7iot barred 

 with black. 



I. THE COMMON PARTRIDGE. PERDIX PERDIX. 



Tefrao perdix, Linn. S. N. i. p. 276 (1766). 



Perdix cinerea, Latham, et auctorum plurimorum ; Dresser, B. 



Europe, vii. p. 131, pis. 474 and 475 (1878). 

 Perdix robusta, Homeyer and Tancre, Mitth. Orn. Ver. Wien, 



vii. p. 92 (1883) ; ix. pi. figs. 3-5 (1885). 

 Perdix perdix, Ogilvie-Grant, "Field," 21st Nov. 1891, and 



9th April, 1892 ; id. Ann. and Mag. N. H. (6), xii. p. 62 



(1893); id. Cat. B. Brit. Mus. xxii. p. 187 (1893). 

 Adult Male. — General colour above brownish-buff (washed 

 with grey in birds from Northern Europe), with narrow, close- 

 set, wavy cross-bars and lines of black ; lesser and median win^- 



