Mr. R. Swinhoe on Formosan Ornithology. 399 



brown colour, almost similar to those of the Nightingale, were 

 brought to me on the 21st August 1861. The native declared 

 them to be the eggs of the Koo-lew. The eggs vary only tri- 

 flingly in size, the largest being 1 in. by •82. 



115. Bambusicola sonorivox, Gould, P. Z. S. 1862, p. 285. 

 Native name, Teek-kue (Bamboo- fowl). 



This and the cognate form from the Foochow hills, Perdix 

 sphenura, J. E. Gray [Perdix thoracica, Temm.), Mr. Gould has, 

 at my suggestion, separated into a distinct genus. 



Bill leaden black, the upper mandible having a brownish 

 white tip. Legs, toes, and spurs dark brownish olive-green, 

 blacker on the toes, and whitish brown on the claws. 



Length 9^ in. ; wing 5^ ; tail 3^q, of 14 rectrices, much 

 graduated, the outer one being \-f>^ shorter than the central, 

 ends rounded. Wing much rounded ; the 4th, 5th, 6th, and 7th 

 quills nearly equal and longest. The hind tarsi armed with a 

 sharp conical spur in the male, which is in the female replaced 

 by a wart. Face, hindneck, and breast dark smoke-grey, mottled 

 with very small dark specks ; the feathers on the crown rufescent, 

 with dark centres and rufous margins. Throat deep maroon- 

 colour. Under parts ochreous clay-colour, most of the feathers 

 being stamped with a large quadrangular spot of maroon. 

 Axillaries brown, striated with a deeper shade. Tibial feathers, 

 abdomen, and vent olive-grey in the male, clay-colour in the 

 female, the vent with reddish-black spots. Feathers of the back 

 olive-grey, finely mottled with black, and marked with a large 

 central deep-maroon drop ; the scapulars similarly coloured, 

 with the addition of a white spot on the outer web of each ; on 

 the wing-coverts the grey gives place to light yellowish brown, 

 and the white spots to ochreous, Primary quills deep brown, 

 rufous on the outer web, mottled with black, and edged with 

 light rufous brown ; secondaries with a black ochreous mottling ; 

 tertiaries the same, having in addition an ochreous spot on the 

 outer web, and a large spot of black-edged deep maroon near 

 their tips. The white and ochreous spots on the wings and 

 their coverts are of different shapes, varying from an arrow-head 

 to an annular form. Lower back, rump, and upper tail-coverts 



