MERGANSER. NATATORES. MERGUS. 385 



ly three inches beyond the closed wings. Legs and feet 

 brown, tinged with red. Tarsus one inch in length. 



The following is a description of the adult male, as given 

 by Dr RICHARDSON, in the Fauna Americ. Boreal., and 

 which agrees with that of WILSON in every essential 

 particular. 



Top of the head, dorsal plumage, upper small wing-coverts, Male, 

 quills and tail, blackish-brown. Sides of the head, neck, 

 bars upon the shoulders, scapulars, tertiaries, and bases 

 of the secondaries and greater coverts, glossy greenish- 

 black. Broad bar behind the eye, through the middle 

 of the crest, alternate bars upon 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. The crest, according to WILSON, is com- 

 posed of two separate rows of feathers radiating from 

 each side of the head, and which can be easily divided 

 by the hand. Irides golden or kingVyellow. 



SMEW, OR WHITE NUN. 



MERGUS ALBELLUS, Linn. 

 PLATE LIX. 



Mergus albellus, Linn. Syst. 1. 209. 5. Gmel. Syst. 1. 547 Briss. Orn. 



6. 245. 3. t. 24. f. l.Lath. Ind. Orn. 2. 831. sp. C- Shavfs Zool. 12. 157. 



pi. 52 Wils. Amer. Orn. 8. 136. pi. 71. f. 4 Flem. Br. Anira. 1. 129. 



sp. 202. 



Mergus major cirrhatus, Rail Syn. 135. A Will. 254. t. 64. 

 Le Petit Harle huppe, ou la Piette, Buff. Ois. 8. 275 Id. PI. Enl. 449 



Temm. Man. d'Orn. 2. 887. 



Weisser-sager, Bechst. Naturg. Deut. 4. 804 Meyer, Tasschenb. 2. 571. 

 Smew, or White Nun, Penn. Br. Zool. 2. 559. No. 262 Levin's Br. Birds, 



6. pi. 234 Lath. Syn. 6. 428 Id. Sup. 271 Id. Sup. 2. 338 Id. in 



Trans, Linn. Soc. 4. 234. pi. 16. f. 3. and 4. (trachea) Mont. Orn. Diet. 



and Sup. Pult. Cat. Dorset. 19 Bewick's Br. Birds, ed. 1826, p. t. 260. 



Flem. Br. Anim. 1. 129. sp. 202, &c. 



VOL. II. B b 



