anatiDjE. 463 



Form. — Bill toothed, as in M. merganser; ridges on the palate less prominent. A crest 

 of long and very slender feathers springing from the crown and occiput. Upper mandible less 

 deep at the base than in the preceding species ; its junction with the feathers of the forehead 

 less indented. 



Female under two feet long, scarcely to be distinguished from the female of the preceding 

 species, except by the form of the line of junction of the plumage of the forehead with the 

 bill, and the black bar crossing the speculum on the bases of the secondaries and extreme tips 

 of the greater coverts. 













Dimensions. 













Male. 



Female. 







Male. 



Female. 







Inch. 



Lin. 



Inch, 



, Lin. 







Inch. Lin. 



Inch. Lin. 



ngt 



b, total . . 



. 25 



6 



21 







Length 



i of bill to rictus 



3 1 



2 7 



„ 



of tail 



4 







3 



6 



55 



from nostrils to tip . 



• 1 74 



1 6 



„ 



of wing . 



. 9 



6 



8 



3 



55 



of tarsus 



1 10 



1 7 



„ 



of bill above 



2 



*i 



2 







55 



of middle toe . 



. 2 3 



2 1 



55 



of bill to frontal angles 



. 2 



5 







55 



of its nail 



4 



4 

 — R. 



[222.] 3. Mergus cucullatus. (Linn.) Hooded Merganser. 



Sub-family, Merganinse, Swains. Genus, Mergus, Linn. 



The Round-crested Duck. Edw., pi. 360. 



Hooded Merganser {Mergus cucullatus). Penn. Arct. Zool., ii., p. 538, No. 407- 



Wils., viii., p. 79, pi. 69, f. 1, male. 

 Mergus cucullatus. Sab. Frarikl. Journ., p. 703. Bonap. Syn., p. 397, No. 349. 

 Keeneeconais-sheep, Algonouins. Omiska-sheep, Crees. 



DESCRIPTION 



Of a male, killed on the Saskatchewan. 



Colour. — Top of the head, dorsal plumage, upper lesser coverts, quills, and tail, blackish- 

 brown. Sides of the head, neck, bars on the shoulders, scapulars, tertiaries, and bases of the 

 secondaries and greater coverts, greenish-black. Broad bar from behind the eye through 

 the middle of the crest, alternate bars on the shoulder, tips of the greater coverts, exterior 

 borders of the secondaries, central stripes on the tertiaries, and under plumage, white. Flanks 

 finely undulated with yellowish-brown and black. 



Form. — Teeth oblique, sharp edged, not conical. Rows of transverse furrows on the 

 palate, but no acute ridges. Crest on the crown and nape long. Wings two inches and a 

 half shorter than the tail. 



Young. — Upper plumage browner ; the white speculum and stripes on the tertiaries less 

 perfect than in the adult. No black and white bars on the shoulder, nor white band behind 

 the eye. The head, neck, and upper parts of the breast, soiled pale brown, with white 

 edgings on the latter. Chin whitish. Bill black, orange beneath. There is scarcely any 

 crest. 



