312 Mr. R. Swinhoe on Formosan Ornithology. 



members of the genus Sphenocercus. The female is of much 

 the same stature as the male, but not quite so robust, and has 

 the wing about half an inch shorter. 



Treron foiinosa 6 (vera). Upper parts olive-green, brighter 

 on the rump and tail, as in the female (in ' Ibis,' 1863, p. 396, 

 '' yellow on the head and rump " is a misprint for "yellower on 

 the head and rump"). Neck, upper back, face, breast, and 

 belly light grass-green, greyest on the second of these, and yel- 

 lowest on the face and underparts. Crown smeared with 

 ochreous-buff. Shoulders and lesser coverts deep chesnut- 

 maroon, extending faintly in a broken semicircle across the 

 back. Axillaries and under wing leaden-grey. Tibials deep 

 green, some of the feathers being broadly margined with prim- 

 rose. Centre of the belly also primrose. Under tail-coverts 

 extending to within half an inch of the end of the tail, primrose, 

 washed with cinnamon, and broadly centred with deep green, 

 especially on the more basal feathers. The feathers of the body 

 on their hidden parts leaden-grey, white at roots. Legs and 

 bill as in female. Quills greyish-black, a few of the outer ones 

 edged faintly with greenish, the outer quill being slightly ser- 

 rated on its outer edge. Outer tertials greyish-black, narrowly 

 edged with green and light yellow ; the rest of the tertials the 

 colour of the back. The primary coverts with more or less 

 greyish black, margined with yellow. Tail olivaceous grass- 

 green, stemmed with greyish-black ; all the rectrices but the 

 middle pair broadly margined interiorly with greyish- black, and 

 lightly smeared on parts with the same. The rest slightly gradu- 

 ated, the outermost being '5 inch shorter than the centrals. Tail 5 

 inches long, consisting of fourteen rectrices. Total length of bird 

 12"5 inches; wing 7"8, the third quill deeply festooned on its 

 inner margin about middle of its length. I cannot find anything 

 in the ' Birds of India ' like this Pigeon ; and I am not suffi- 

 ciently acquainted with this group to tell if it has a close affine. 

 It may perhaps be nearly matched from the Philippines. 



I have a third species of Treron from the Fungshan Mountains, 

 but unfortunately only a single female specimen of it. Its dis- 

 tinctness is marked ; and on account of its cry, which the Chinese 

 compare to the Aiu-a shouting of their ladies to sunmion the 



