ee es ee ee 
- 
wes = 
ae racial 
— 
JOURNAL 
OF THE 
eG N/A Se 
Aatural History Society, 
Vol. Xill. BOMBAY. i No. i. 
INDIAN DUCKS AND THEIR ALLIES, 
By E. C. Sruart Baker, F.ZS. 
Part X, with PLate X, 
(Continued from page 24 of this Volume.) 
Subfamily—Mercin a. 
This subfamily is at once distinguishable from all others by its 
bill, which differs very greatly from the shape most generally con- 
sidered as being typical of a duck. Instead of being considerably 
depressed in the ordinary manner, it is actually compressed, and in- 
stead of having the usual lamellee along the sides, having regular 
tooth-like serrations on the edges of both upper and lower mandible. 
This last characteristic suffices to distinguish the Mergine from 
the Merganettine, a subfamily which has neither teeth nor serra- 
tions, but which is not represented in India. 
The Mergine consist of two genera only, as represented in India, 
with one other, Lophodytes, confined to North America. 
Key to the Genera. 
(4) Culmen shorter than tarsus, under 1°5''; wing about 
7" to 8" ¥3; ee 
(5) Culmen longer than tarsus, over 1°9" ; wing about 9" : 
po) te. os a wy weg Avena, Wengansers 
Genus MERGUS. 
The genus Mergus contains but a single species, the well-known 
Smew, Mergus albellus. Its curious narrow beak and its much smaller 
1 
Mergus. 
