228 LOTSY AND KUIPER, A PRELIM. STATEMENT OF THE RESULTS OF MR. 
yetti-cocks while moulting, look strikingly like rumpless fowls, as two 
specimens in the Leyden museum show, and in this condition may have 
been taken to be rumpless. This would also explain why SONNINI 
reported that rumpless fowl were called Wallikikilli in Ceylon, which 
as we saw, is the name given by the natives to Gallus lafayetit. 
Concluding: Gallus lafayetti is fertile with domestic poultry, and domi- 
nates over some of them greatly in F, in both sexes; the hybrids are fertile 
inter se and probably segregate; crosses with either bankiva or sonnerati 
are unknown. 
2. BANKANTAMS X SONNERATI. 
As it was unfortunately shown that the birds sold to MR. HOUWINK 
as bankiva’s were no pure bankiva’s we shall call them bankantam’s in 
future, thus indicating that it were birds of bantam-size strongly re- 
sembling bankiva’s 1). The bankantam-hens used in Mr. HOUWINK’s 
experiments were 201.3 and 201.2, each of which was crossed with a 
different sonnerati cock, while some progeny was raised from animals 
containing blood of all the birds with which the experiments began, as 
the following tabulation shows. 
Descendants of Sonnerat 195.1 & DE Bas: 
P. bankantam 201.3 X Sonnerati 195.1 4 
F, 198.1—3 ex P 201:3 9 x 195.1 & ...... 3 anal 
Se) ER Ela @ x 19811 Me a 
E2821 20 IS 198.351 O «198/16 A] A 
F, 391.1—20 + 14; 38; 42; 88; 9%ex F, 206.2 Q x 206.1 g\ = 
F, 604.1—4 ee 206.2 © x 282.10 | ee ” 
P5762 ex F, 391.11 9 x 391.6 A à 
F, 580.1—4 D 351.790 x 391108 Br 
F, 606.1—5 exe 580.1 © X 578.1) ae eee 
1) Itis evidently very difficult to obtain pure Bankiva’s. Two cocks imported 
recently by the Zoological Gardens at Rotterdam from Sumatra differ greatly; 
the one looks very much like the Bankantams of Mr. HOUWINK, but its breast is 
a pure black, the other, which has large white earlappets, is very much like an 
ordinary bantam, but very wild. 
