ANATIDA5. 
217 
Genus MARECA Steph. 
Mareca Stephens, Gen. Zool. vol. xii. pt. 2, p. 130, 1824. Type (by 
subsequent designation, Eyton, Mono. Anat. p. 33, June 1838): 
Mareca Jisiulans Steph. =A. penelope Linne. 
Mareca penelope (Linne). (27-227.) 
Anas penelope Linne, Syst. Nat. 10th ed. p. 126, 1758 : Sweden, 
Europe. (Fig. Dresser, vol. vi. pis. 432-433.) 
(For synonyms cf. Hartert, Vbg. palii. Fauna, ii. p. 1321, 1920.) 
Distr .— Europe and Africa to North America and ? Sandwich 
Islands. 
Genus DAFILA Steph. 
Dafila Stephens, in Shaw’s Gen. Zool. vol. xii. pt. 2, p. 126, 1824. 
Type (by monotypy) : Dafila caudacuta Steph. =Anas acuta L. 
Dafila acuta (Linn6). 
Distr. —Europe, Asia, Africa to China, Philippine Islands, 
and Sandwich Islands. 
[Dafila acuta acuta (L.). (27-270.) 
Anas acuta Linne, Syst. Nat. 10th. ed. vol. i. p. 126, 1758 : Sweden. 
Distr. — Europe, Asia to Philippine Islands. Extra-liinital.] 
Dafila acuta tzitzihoa (V,). 
Anas tzitzihoa Vieillot, Nouv. Diet. d’Hist. Nat. vol. v. p. 163,1816 : 
Mexico, America. (Fig. Dresser, vi. pis. 430-431.) 
Anas caudata Brehm, Handb. Naturg. Yog. Deutschl. p. 869, 1831 : North 
America. 
Distr. —North America and Hawaiian Islands. 
Genus NESONETTA Gray. 
Nesonetta Gray, Genera Birds, vol. iii. p. 627, Sept. 1844. Type (by 
original designation) : N. aucklandica Gray. 
Nesonetta aucklandica Gray. (27-289.) 
Nesonetta aucklandica Gray, as above, pi. 169, and Yoy. ‘ Erebus ’ & 
Terror,’ Birds, p. 16, June 1845: Auckland Islands. (Fig. Buller, 
2nd ed. pi. 42; Ereb. & Terr. pi. 17 ; and Phillips, pi. 51.) 
Distr. —Auckland Islands, New Zealand. 
Genus ELASMONETTA Salvad. 
jElasmonetta Salvadori, Cat. Birds Brit. Mus. vol. xxvii. p. 287 (after 
Sept. 6th), 1895. Type (by original designation) : Anas chlorotis 
Gray. 
