Dr..Latuam’s Effay on the Trachee or Windpipes of Birds. 17 
XXI. ANAS FULIGULA—Turrep Ducx. 
A, crifta dependente, corpore nigro, abdomine fpeculoque alarum 
albis. 
Anas Fuligula, Linn, Sy/. Nat. i. p. 207.—Ind. Orn. ii. p. 869.— 
Raii Syn. Av. p. 142. A. 7.—Brif. Orn, vi. p. 411. t. 37.1. 
Morillon, Buf. Oi/- ix. p. 227. t. 15.—P/. Enl. 1001. 
Europaifche Haubente, Bée/ch. der Berl. Nat. Fr. iv. p. 603. 
Tufted Duck, Gen. Syn. vi. p. 540.—Br. Zool. No. 274.—Will.. 
Orn. p. 365. pl. 73- 
The ¢rachea in the Tufted Duck is fimilar in fome refpeéts to that 
of the Scaup, in others to that of the Pochard. The drum-like 
portion of it refembles the fame part in the laft-named bird, 
infomuch as-fcarcely to be diftinguifhed from it; but the bony box- 
like portion of it is elevated, and not otherwife to be diftinguifhed: 
from that of the Scaug, than in being fmaller. The srachea itfelf 
is of equal dimenfions throughout, though fmaller than either of the. 
foregoing. By attending to thefe particulars it cannot be miftaken 
for any other, and in courfe will prevent the occafion of giving a 
reprefentation in order to identify it.. 
7 XXII. ANAS TADORNA—The Suretprake. Tad. xv. Fig. 8,9. 
A. roftro fimo, fronte compreffa, capite nigro-virefcente, corpore 
albo variegato. ; 
Anas Tadorna, Linn. Syf. Nat. i. p. 195.—Ind. Orn. ii. p- 854.— 
Raii Syn. Av. p. 140. A. 1.—Brif. Orn. vi. p. 344. pl. 33. f. 2. 
Die Brandente, Schr. der Berl. Nat. Fr. iii. p. 373: te Nil. fips)’ 45 
Shieldrake,.Gen. Syn. vi. p. 504. rey Zool. iit. No. 278.—Will. 
‘ Orn. p. 363. pl..70, 71. 
The 
