^"'ioos^^ 1 Oberholser, Genera and Species of Cygnincs. O 



Geographical Distrihitiion. — Southern Brazil, Uruguay, Paraguay, 

 Argentine Republic, Patagonia, Chile, and the Falkland Islands. 



This very distinct species Doctor Stejneger has generically 

 separated from Cygnus olor on the strength of the slight difference 

 in the sinuation on the outer primaries, the difference in the outline 

 of the webs between the toes, and the extent of the down on the 

 sides of the bill in the young ; but these characters seem to us 

 hardly more than specific. 



Genus Chenopis (Wagler). 



Chenopis, Wagler, I sis, 1832, p. 1234 (type, Anas atrata, Latham). 

 Chenopsis, Reichenbach, Naturl. Sysr. Vog., 1852, p. x. (type. 

 Anas atrata, Latham), {nom. emend, pro Chenopis, Wagler). 



Type. — Anas atrata, Latham. 



Chars, gen. — Tertials and scapulars crisp ; culmen without a 

 knob at base ; tail shorter than middle toe with claw ; trachea 

 very slightly looped ; no trace of a bronchial dilatation. 



Geographical Distribution. — Australia and Tasmania ; formerly 

 New Zealand and the Chatham Islands. 



Chenopis atrata (Latham). 



Anas atrata, Latham, Index Ornith., ii., 1790, p. 834. 



Anser novce-hollandice, Bonnaterre, Encycl. Meth. Ornith., i., 

 1791, p. 108 (near Port Jackson, New South Wales, Australia). 



Anas plutonia, Shaw, Natur. MiscelL, iii., 1791, pi. 108 (New 

 South Wales, Australia). 



Chars, sp. — Plumage brownish-black, the primaries and second- 

 aries pure white ; bill red, with a broad band of white near the 

 tip ; legs and feet black ; wing, 428-508 mm. 



Type Locality. — Lakes of Australia. 



Geographical Distribution. — Australia, except the central northern 

 part ; Tasmania. 



Chenopis sumnerensis (Forbes). 

 Chenopis sumnerensis, Forbes, Ibis, 1890, p. 264. 



Chars, sp. — Similar to Chenopis atrata, but larger. 



Type Locality. — Monck's Cave, Sumner, near Christchurch, New 

 Zealand. 



Geographical Distribution. — New Zealand and the Chatham 

 Islands. 



This interesting addition to the extinct fauna of New Zealand 

 was first brought to light in Monck's Cave, at Sumner, a few miles 

 from Christchurch. The original material consisted of three com- 

 plete coracoids, with the distal and proximal portions of a humerus. 

 The species has since been discovered in various other parts of New 

 Zealand, as well as on the Chatham Islands, in which latter locality 

 it is said to have been evidently very numerous. The first pub- 

 lished account seems to be the one above cited, for although the 

 species was supposedly on exhibition at the meeting of the Philo- 



