140 
Le Piptions sis yi en ae Vieill, En. Method. Orn. 1. 
104. rave 
Le. Harle etotles. sic. cessceteass see Buff. Ois. 8. 278. . 
Viel, Hn. Method. Orn. 1. 
105. 
LOCKER % ve ve oe Sigywa vue ens sir ha Linn. Trans. vol. 4, tab. 10, 
fig. 3, 4. 
Found in Europe, America, and Asia, but does not migrate far 
southwards; breeds in Siberia, Kamschatka, Greenland, and Iceland, 
generally on the banks of fresh water rivers or lakes, laying from ten — 
to twelve yellowish eggs. The female and young of this species may 
be distinguished from those of the hooded merganser by the shortness 
and stoutness of the bill, and by the serratures not being pointed 
backwards, and more resembling the lamelle of the true ducks. The 
tube of the trachea has one enlargement towards the middle, and 
continues of large diameter to the inferior larynx, which differs in 
. form from that of the other mergansers, the greatest diameter being 
transverse instead of vertical; in other respects it is similar. 
MERGANETTA ARMATA. 
Mer. Mas.—Subtus ferrugineus ; dorso atro, marginibus pennarum 
cinereis. 
Mer. Fem.—Subtus albus; dorso atro, marginibus pennarum 
cinereis. 
ARMED MERGANETTA. 
Mer. mas. : below ferruginous ; the back black, with edges of the 
feathers cinereous. | 
‘Mer. fem.: below white ; back black, with the edges of the feathers 
cinereous. 
IN. IN. 
WiCHnGh lyin ec. siedee savkchads ek Metatarsus .cccccerese 4 
PEE e sees ee manwce : 13 Middle toe ..cccccscsee gh 
Mer. mas.: under parts and front of neck ferruginous; the head 
and back black, each feather edged with light grey; wings dark — 
grey, the lower coverts edged with white; speculum eneous; bill 
and legs red; upper tail coverts black, barred narrowly with light 
grey. 
