14 
supra nares posita. Nares ovales, magnee, prope culmine basi locate. 
Caput ad oculos denudatum. Lingua obtusa, ad apicem appendiculata 
lateraliter una ordine setarum et supra has quatuoribus spinis instructis 
et in medio supra duplici ordine setarum brevium armata. . 
Ext. CuAr. Feet with the posterior toes gibbous, the middle © 
longest. Thighs feathered. Bill with the sides equal, and with a 
subglobose tubercle placed above. Nostrils oval, large, placed at 
the base of the bill near the culmen. Head naked to the eyes. 
Tongue obtuse, with an appendage at the point, the sides armed with 
one row of bristles; above these with four spines, and in the middle, — 
on the upper side, armed with a double row of short bristles. 
Anas. Linn. 
Carina. Flem. 
Type. Carina moschata. 
SUB FAM. IV. FULIGULINZ. 
Ext. Cuar. Aostrum ad basin altius-quam latum. Pedes magni, 
digitis posterioribus lobatis, externis vix brevioribus intermediis. 
Rectrices Caude plerumque breves et flexiles. _4/@ mediocres. 
Ext. Cuar. Sill higher than broad at the base. Veet large, 
posterior toe lobated, the outer slightly shorter than the middle one. 
Tail feathers generally short and flexible. Wings moderate. 
Tyree. Fuligula. 
Hasir. Aquatic and marine, feeding on small molusca, and 
occasionally small fish. Some of the species possess considerable 
power of flight. 
Affinity. The sterna of some genera of this family, Clangula 
and Harelda, are furnished with an ensiform process, as in the Mer- 
gansers. In the former the trachea also much resembles that family. 
To the Anatine, as we have before stated, we believe it to be con- 
nected through the genus Micropterus and Carina. 
GENUS I. MICROPTERUS. 
Ext. Cuar. Pedes digitis posterioribus lobatis. Rostrum validum, 
rugosum. Jamelle magne. Nares in medio rostri posite. TZibie 
plumatz. Ale breves. 
Ext. Cuar. Feet with the posterior toes lobated. Bill strong, 
wrinkled. Lamelle large. Nostrils placed in the middle of the bill. 
Thighs feathered. Wings short. 
