122 ANATID^E. 



522. Casarca tadornoides, Jard. & Selb. Australian Shel- 



drake. 

 Hob. South Australia. 



a-c. Females. Presented by the Hon. J. C. Hawker, Speaker 

 of the House of Assembly, Adelaide, April 3, 1862. 



d, e. Males. Presented by the Acclimatization Society of 

 Victoria, Sept. 22, 1863. 



523. Casarca variegata (Gm.) . Variegated Sheldrake. 

 Hab. New Zealand. 



a. Male. b. Female. Presented by J. D. Tetley, Esq., Aug. 

 3, 1863. 



Genus Aix. 



524. Aix sponsa (Linn.). Summer Duck. 

 Hab. North America. 



a. Male. b. Female. Bred in the Gardens, May 24, 1859. 



c. Male. Hybrid between this species and Fuligula ferina 



(Linn.). 



d. e. Males. Hybrids between this species and Nyroca leu- 



cophthalma (Bechst.). Keceived in exchange, Nov. 11, 1860. 

 f-m. Bred in the Gardens, 1863. 

 n-s. Deposited, 1863. 



525. Aix galericulata (Linn.). Mandarin Duck. 

 Hab. China. 



a. Female. Bred in the Gardens, June 2, 1859. 



b. Male. Deposited, April 15, 1862. 



c. Male. d. Female. Bred in the Gardens, 1862. 



e. Male. Bred in the Gardens, June 1, 1863. 



Genus MARECA. 



526. Mareca penelope (Linn.). Wigeon. 

 Hab. Europe. 



a. Male. b. Female. Purchased, 1861. 



c. Male. d. Female. Supposed hybrids between this species 



and the Querquedula crecca (Linn.), known as the Bima- 



culated Duck. Purchased, Feb. 18, 1861. 

 e, g. Supposed hybrids between this species and the Querque- 



dula crecca (Linn.), known as the Bimaculated Duck. 



Presented by J. A. Heaton, Esq., Oct. 18, 1864. 



