236 LOTSY AND KUIPER, A PRELIM. STATEMENT OF THE RESULTS OF MR. 
The F , cock 270.1 (Pl. IV, fig. 3) shows the Sonnerat-influence very dis- 
tinctly on the ventral surface by the white median stripe on the fea- 
thers, as well as by the presence of the sonnerat-belt. The brown margin 
of all the feathers however is so dark that the Sonnerat-belt does not 
jump into the eyes by any means. The whole bird is very much darker, 
on account of the intersity of the brown mentioned, than the F, cock 
198.1 and differs from it also by the peculiar, short-triangular, shape of 
the breast-feathers, which more over are very much smaller than on 
that F, cock and together form a kind of cushion, making the breast 
look distended. (Fig. 3 Pl. IV). The black between the white median 
stripe and the-darkbrown margin is very much blacker than in Son- 
nerat ; this intense black, as well as the darkbrown, evidently being due 
to the bankantam-mother. The shanks showed the red longitudinal 
stripes of the Sonnerat-father, very distinctly. The hackles form toge- 
ther a collar of a very regular pattern, due to the very broad black 
stripe of each individual hackle, and its gold-stone colored border. 
These hackles are quite different from those of the F, cock 198.1, less 
bankiva-like; in fact they are almost exactly intermediate in shape 
between those of Sonnerat and those of Bankiva. Of the waxy spots of 
Sonnerat nothing however is left, except possibly a terminal simili-spot, 
consisting of closely adpressed barbs, while rudiments of the other 
spots are present on some of the hackles in the form of yellow spots on 
the otherwise black center of the feather. The dorsal plumage is much 
like that of bankiva, while lower down in the saddle-feathers, again in- 
termediate in shape between those of Sonnerat and bankiva, the ban- 
kiva influence is visible in the goldstone-colored border and that of 
Sonnerat in the light median stripe (yellow instead of white however) 
and in the bluish violet colour of the center, while the tailcoverts again 
have a simili-waxy tip. The greenish blue of the tailfeathers also is 
sonneratian. One of the tailcoverts is conspicuously crossbarred with vi- 
olet, a condition not present in either bankiva or Sonnerat, but some- 
times in hybrids of bankiva with varius. 
There is also a faint indication of the Sonnerat spots on the latteral 
parts of the Sonnerat-belt and on the wingcoverts, though, at the 
latter place, very much less so than in the case of the F, hybrid 198.1. 
Some of the larger wingcoverts have a curious green crossbar on the 
violet surface, which is frequently mottled with brown. The secondaries 
show the cinnamon of bankiva on the outer web, which however is 
