42 AlfATID^. 



Hyhrids. 



Black Swan S X White Swan J , Glencon, P. Z. S. 1847, p. 97. 

 Cj'gnus atratusxO. olor, Leverk. J.f. 0. 1890, p. 217. 



Adult male. Brownish black, the under surface paler than the 

 upper ; the feathers of the back tipped with greyish brown ; pri- 

 maries and secondaries pure white ; tertiaries and scapulars crisp : 

 " bill pinky scarlet, crossed near the tip with a broad band of white ; 

 the extremities of both mandibles are also white ; irides scarlet ; 

 eyelash and lores pinky scarlet ; feet black " (GovM). Total length 

 about 40 inches, wing 19, tail 4-6, culmen 2-8, tarsus 3-7. 



Female. Similar, but somewhat smaller. 



Tounrj in down. Upper surface light brownish grey ; under 

 surface white ; chin and throat white, changing gradually into the 

 greyish tinge of the checks ; bill and lores brownish black ; nail of 

 the bill white ; feet dull greyish browu ; later on the Cygnets get 

 greyish also on the underparts. 



Hah. Australia, except the northern part, and Tasmania. 



a. Ad. St. Australia. Purchased. 



b. Ad. st. Australia. Lord Famborough [P.]. 



c. Ad. sk, Australia. 



d. e. Pull. sk. Gould Coll. 



/. .Juv. sk. Salvin-Godman Coll. 



g. Ad. sk. N. S. Wales. Hume Coll. 



h. Ad. sk. [pale Adelaide. Adelaide Museum [P.]. 



variety]. 



i. Pull. St. Southport H., Tasmania. Gould CoU. 



k. PuU. St. Banks of the E. Thames. 

 I, m. Pull. St. _ J. Baker, Esq. [P.]. 



n. Skeleton. Australia. 

 0. Sternum with trachea. 



3. COSCOROBA. „ 



Type. 



Coscoroba, Mchnh. Av. Si/st. Nat. p. x (18.52) C. Candida. 



Pseudolor, G. R. Gr. MSS., tide G. B. Gr. Cat. Gen. ^ 



Subyen. B. p. 122 (18.5.5) C. Candida. 



Pseudocycnus, Sundev. Meth. 7iat. Av. disjJ. Tent. p. 147 



(1872) C. Candida. 



Bange. Confined to the southern part of South America. 



1. Coscoroba Candida. 



Anas coscoroba, Mol. Sagg. Star. Nat. Chili, p. 207 (1782) ; Gm. S. N. 



i. 2, p. 503, n. 51 (1788) ; Lath. Ind. Orn. ii. p. 8-35, n. 7 (1790) ; 



Eyd. et Gerv. Mag. de Zool. 1836, p. 36; iid. Voy. Favorite, Ok. 



p. 62 (18.39). 

 Anser coscoroba, Bonn. Enc. Meth. i. p. 112, n. 9 (1790) ; Vieill. N. D. 



xxiii. p. 332 (1818) ; Steph. Gen. Zool. xii. 1, p. 39 (1824) ; Dwn. 



Diet. Sc. Nat. xxxv. p. 471 (1825). 



