324 GOLDEN-EYE DUCK. 
of the smaller coverts, some of the secondary coverts, and six or seven 
of the secondary quills, pure white. The basal part of the secondary 
coverts black. Axillar feathers and lower wing-coverts dusky; the 
elongated feathers of the sides have the inner, some of them also their 
outer margins black, that colour in those of the innermost covering the 
whole inner web. The feathers on the legs, and along the sides of the 
rump dusky. The tail brownish-grey. 
Length to end of tail 20 inches, to end of wings 174, to end of 
claws 201; extent of wings 31}; bill along the ridge 12, from the angles 
2, along the edge of lower mandible 275; wing from flexure 9; tail 43; 
tarsus 1; ; hind toe £3, its claw 7 ; second toe 1%, its claw #4; third 
toe 21, its claw #5; fourth toe 27%, its claw yy. Weight 2 lb. 4} oz. 
Of another male, length to end of tail 193, to end of claws 214, to 
end of wings 17 ; extent of wings 31. 
Adult Female. Plate CCCXLII. Fig. 2. 
The female is much smaller. Bill dusky, a portion at the end, not 
however including the unguis, dull yellowish-orange. Eyes and feet 
as in the male. Head and upper part of neck dull reddish-brown. 
Lower part of neck and the sides of the body brownish-grey, the 
feathers margined with pale grey. Upper parts greyish-brown, 
much darker behind; tail brownish-grey ; wings brownish-black, 
seven of their coverts, excepting at the bases, white, the smaller co- 
verts lighter and tipped with greyish-white : the legs and sides of the 
rump greyish-brown. 
Length to end of tail 16 inches, to end of wings 15, to end of claws 
174; extent of wings 28; wing from flexure 8}; tail 34; bill along 
the ridge 13, from the angles 13, along the lower mandible 184; tarsus 
134; hind toe 8, its claw 1!; middle toe 224, its claw 2; outer toe } 
longer: inner toe and claw 2. Weight 13 lb. 
An adult male examined. The tongue is 2 inches long, fleshy, pa- 
pillate at the base, with two series of lateral filaments, a deep median 
groove, and a thin semicircular tip, as in many other ducks. The ceso- 
phagus is 10 inches long, of moderate diameter, dilated towards the 
lower part of the neck to 3 inch; its walls very thick; the proventri- | 
culus with numerous oblong glandules. The stomach is a large and 
powerful gizzard, of a roundish form, 2 inches long, and of equal dia- 
