THE TREE-PARTRIDGES. 171 



XIII. whitehead's TREE-PARTRIDGE. ARBORICOLA 

 ERYTHROPHRYS. 



Bawbusicola erythrophrys, Sharpc, Ibis, 1890, pp. 139, 284, 288, 



289, pi. iv. 

 Arborkola eryfhrophrys, Ogilvie-Grant, Cat. B. Brit. Mus. xxii. 

 p. 218(1893). 



Adult Male. — Closely allied to the last species, A. hyperyihra, 

 but distinguished by having the eyebrow-stripes black, like the 

 crown, in the fully adult birds, rust-red in less mature birds, and 

 greyish in the young (which have the crown brown, only slightly 

 spotted with black, and the throat whitish-buff) ; chin and 

 throat black in the fully adult, rust-coloured in younger birds. 

 Total length, 10 inches; wing, 5-8; tail, r8; tarsus, 1-85. 



Adult Female. — Appears to differ from the male in never get- 

 ting the black on the throat. 



Range. — North Borneo ; the dense bamboo-jungles of Mount 

 Kina Balu, from 2.000 to 4,000 feet. 



XIV. HORSFIELD'S TREE-PARTRIDGE. ARBORICOLA 

 ORIENTALIS. 



Perdix orientalis, Horsfield, Trans. Linn. Soc. xiii. p. 184 



(1822). 

 Perdix personata, Horsfield, Zool. Res. Java, pi. 61 (1824). 

 Arboricola orientalis, Ogilvie-Grant, Cat. B. Brit. Mus. xxii. p. 

 218(1893). 



Adult. — Crown and nape blackish-brown ; eyebrow-stripe, 

 sides of the head, and throat white ; upper-parts dark brown, 

 fringed with blackish ; wing mixed with olive- brown and orange- 

 red, and blotched with black ; a dark brown band along each 

 side of the head enclosing the eye ; chest and breast brownish- 

 grey ; belly whitish ; flanks grey, with wide irregular bars of 

 black and white. Total length, 11 inches; wing, 5-9; tail, 2*5; 

 tarsus, 1 "8. 



Ranje. — Mountains of East Java ; forests of 3,000 feet. 



