214 
ANATIDAC. 
Casarca variegata (Gmelin). (27-183.) 
Anas variegata Gmelin, Syst. Nat. vol. i. pt. ii. p. 505, Apr. 20th, 
1789 : Dusky Sound, South Island. (Fig. Buller, 1st ed. pi. 25, 
2nd ed. pi. 43; Ereb. & Terr. pi. 10; and Phillips, pi. 18.) 
Casarka castanea Eyton, Mon. Anat. p. 108, pi. 10, Jnno 1838 : Dusky Sound, 
South Island. 
Anas cheneros Forster, Deacr. Anim. ed. Licht. p. 92 (pref. Jan.), 1844: 
Dusky Sound. 
Distr .—New Zealand. 
Genus ANAS Linne. 
Anas Linne, Syst. Nat. 10th. ed. p. 122, Jan. 1st, 1758. Type (by 
subsequent designation, Lesson, Man. d’Orn. vol. ii. p. 417, 1828) : 
Anas bosclms Linn6= Anas platyrhynchus Linn6. 
Anassus Rafinesque, Analyse do la Nature, p. 72, 1815: new name for Anas 
Linne, cf. Auk, vol. xxvi. p. 50, Jan. 1909. 
Boschas Swainson, Jonrn. Roy. Inst. Gfc. Brit. vol. ii. pt. 4, p. 20, Aug. 
1831 ; and Fauna Bor. Amer., Birds, p. 442, “ 1831 ” = Fob. 1832. Typo (by 
tautonymy): Anns domestica “ Brisson *'=Ana* plalyrhynchos Linin'*. 
Horizonetta Oberholser, Proc. Biol. Soc. Wash. vol. xxx. p. 119, May 23rd, 1917. 
Type (by original designation): A nas laysanensis Rothsch. 
Anas platyrhynchus Linne. 
Anas platyrhynchus platyrhynchus L. (27-189.) 
Anasplatyrhynchos Linne, Syst. Nat. 10th ed. p. 125,1758 : Sweden, 
Europe. (Fig. Dresser, vi. pi. 422.) 
Anas boschas Linne*, ib. p. 127 : Sweden, Europe. 
(For other synonyms cf. Hartert, Yog. palii. Fauna, ii. p. 1308, 1920.) 
Distr. —Northern Hemisphere to Sandwich Islands. 
Anas laysanensis Rothsch. (27-199.) 
Anas laysanensis Rothschild, Bull. Brit. Orn. Club, vol. i. p. xvii, 
1893: Laysan. (Fig. Av. Lays. pi. 13.) 
Distr. —Laysan. 
Anas wyvilliana Scl. (27-190.) 
Anas wijvilliana Sclater, Proc. Zool. Soc. Lond. 1878, p. 350: 
Sandwich Islands. (Fig. Av. Lays. pis. 78-79.) 
Distr .—Hawaiian Islands. 
• 
Anas oustaleti Salvad. (27-189, note.) 
Anas oustaleti Salvadori, Bull. Brit. Orn. Club, vol. iv. p. 1, Oct. 31st, 
1894: Marianne Islands. 
Distr. —Marianne Islands (Guam and Saipan). 
