406 Dr. A. Hall on the Mammals and Birds 



well as the secondaries, white on the inner vanes towards the 

 base. 



Ventral aspect white ; sides of flanks streaked with black. In 

 another female, probably a younger bird, the anterior part of the 

 throat and cheeks is mixed cinereous and white, imparting a 

 gYQ.j or hoary appearance to these regions. The length of the 

 latter specimen is 2*7 inches, that of the former 28 inches. Nut- 

 tal gives as the length of the male bird 29 inches. The stuffed 

 specimen of the male, the description of which is given above, 

 measured as stated 31 inches, probably owing to an irregularity 

 in the manner in which the specimen has been set up. The bird 

 is a rare one in our markets. The male specimens are even rarer 

 than the female. 



C. glacialis. Loon or Great Northern X>iver. 

 C immer of Gmelin ! Young bird. 

 Colymhus torquatus. Baird ! 



v.s.p. Bill, legs and feet black ; irides red ; eggs 3 to 4 

 smoky olive, blotched with umber brown. 



Dorsal aspect. Crown, cheeks, chin and whole neck jet black, 

 deep black on the head, glossy at the lower part of the neck, with a 

 purple reflection ; on the front of the neck, a narrow band, scarce- 

 ly reaching the sides, and about two inches below it, a collar com- 

 mencing broadly behind and narrowing to the front, white, with 

 broad longitudinal black lines, the black streaks occupying the 

 centre of the feathers ; interscapulary region, scapulars, great and 

 small wing coverts; rump and tail coverts, black, verging to 

 brown on the coverts, with rows of white spots ; these spots being 

 square and in pairs on the scapulars ; suborbicular and in pairs 

 on the dorsal region, and single and round on the coverts and 

 rump ; primaries, secondaries and tail blackish brown, white on 

 the inner vanes of the two former near the base. 



Ventral aspect. Shoulders white, streaked with black, like the 

 collar ; wing and tail coverts, and breast and belly white ; sides 

 and flanks black, streaked and spotted with white. 



1st primary longest; length 34 inches; alar expanse 51 in- 

 ches ; length of the bill from the rictus 4f inches. The female 

 is in every respect analogous to the female of the C. Septemti'io- 

 nalis, but on a larger scale ; the feathers of the head and neck of 

 this bird are uncommonly velvety in feel, and from its approxima- 

 tion to the characters of fur and from its durability is often used 

 for the same purpose by our Aborigines. The C. Arcticus, the 



