222 
CATALOGUE OF BRITISH BIRDS. 
Aythya marila, Boie^ Isis (1822) p. 564; Brehm^ Vdg» Deuts, p. 
912. 
Aythya leuconotus, Brehm^ Vog. Deuts, p. 913. 
Aythya islandica, Brehm, Vdg. Deuts. p. 911. 
Scaup Duck, Mont. Orn. Diet.; Bew. Brit. B. (1804) ii. p. 339, 
fig. ; Penn. Brit. Zool. xii. p. 251, pi. 42; Yarr. Brit. B. 2 edit, 
iii. p. 341, fig. 
Scaup Pochard, Selby ^ Brit. Orn. ii. p. 354. 
PI. enl. 1002 ; Gould, B. of Eur. pi. 371. 
a. Hampshire. From Col. Montagu’s collection. 
b. Somersetshire. From Col. Montagu’s collection. 
c. — 
d. Milford Haven. Presented by the Earl of Cawdor. 
e. Cambridgeshire. Male. From Mr. J. Baker’s collection. 
/. Cambridgeshire. Female. From Mr. J. Baker’s collection. 
g, h. Two tracheae. England. 
3. NYROCA. 
Nyroca, Flem. Phil, of Zool. ii. p. 260 (1822). 
Aythya, Boie, Isis (1822), p. 564. 
1. Nyroca ferina. The Pochard. 
Anas ferina, Linn. S. N. i. p. 203 ; Temm. Man. d'Om. 1815, p, 
504 ; Leach, Syst. Cat. Mam. ^ B. B. M. p. 38 ; Naum. V’og. 
Deuts. (1844) xii. p. 21, t. 308 ; Schleg. Rev. Grit, des Ois. d’Eur. 
p. 120. 
Fuligula ferina, Steph. Gen. Zool. xii. p. 193; Jenyns, Man. B. 
Vert. p. 241 ; Eyton, Cat, Brit. p. 57 ; Keys. ^ Bl. Wir - 
belth. Eur. p. 87. 
Nyroca ferina, Flem. Phil, of Zool. ii. p. 260 ; Flem. Brit. An. p. 
121 ; G. R. Gray, Gen. of B. iii. p. 621. 
Aythya ferina, Boie, Isis (1822), p. 564; Brehm, Vdg. Deuts. p. 
920, t. 43, f. 3 ; Pr. Bonap. Geogr. Comp. List of B. p. 58 ; 
Macgill. Man. N. H. Ornith. ii. p. 191. 
Anas rufa, Gmel. S. N. i. p. 515. 
Aythya erythrocephala, Brehm, Vdg. Deuts, p. 919. 
Pochard, Orn. Diet.; Bew. Brit. B. (1804) ii. p. 356, fig.; 
Penn. Brit. Zool. (1812) ii. p. 270; Yarr. Brit. B. 2 edit. iii. 
p. 332, fig. 
