134 MR, P. L. SCLATER ON TWO CURIOUS DUCKS, [Feb. 7, 
inner margins not meeting. Anterior femora armed with three 
strong spines beneath. of 
Long. 22 millim. ; exp. tegm. 63 millim. 
Hab. Ponape (Caroline archipelago). (Mus. Godeffroy ; coll. 
Dist.) 
EXPLANATION OF PLATE VII. 
. Arcystasia godeffroyt, p. 133. 
2b. Cosmopsaltria stuarti, p. 125. 
. Tibicen burkei, p. 126. 
. —— willsi, p. 127. 
. Melampsalta leichardti, p. 132. 
. Tibicen muelleri, p. 128, 
gregoryi, p. 129. 
. —— gilmorei, p. 127. 
, 9a, 9b. Melampsalta warburtoni, p. 129. 
10, 10a, 108. forrest, p. 129. 
11, 1la, 114. Cystosoma schmeltzi, p. 182. 
12, 12a, 126. Melampsalta eyrei, p. 180. 
13, 13a,.136. —— mackinlayi, p. 180. 
14, 14a, 14. —— landsboroughi, p. 181. 
by 
a 
oe 
Age 
on Choe 
Sees 
I 
= 
a 
a 
SO NID OUP C9 bo 
DID 
aa 8 
DID 
a ~ 
February 7, 1882. 
Prof. W. H. Flower, LL.D., F.R.S., President, in the Chair. 
Mr. Henry Seebohm exhibited a series of intermediate forms 
between Carduelis caniceps and C. major (the eastern form of our 
common Goldfinch, C. elegans), obtained at Krasnoyarsk in Central 
Siberia. The series showed every intermediate form between one 
species and the other, the white on the outer webs of the innermost 
secondaries increasing in exact proportion as the black on the crown 
and nape diminished. The supposition was that the two forms 
interbreed in this district and produce fertile offspring. 
Mr. Sclater exhibited on behalf of Mr. Peter Inchbald, F.Z.S., 
two curious Ducks which had been shot on some ornamental water 
near Darlington in the county of Durham. One of these appeared 
to be the result of a cross between the Pochard (Fuligula ferina) 
and one of the freshwater Ducks, possibly the Teal or Mallard; the 
other presented nearly the appearance of a female Scoter (Gidemia 
nigra), but was rather darker below. 
The following papers were read ;— 
