137 



Catarractes AloeJiring, Av. Gen. 75. 



Uria Brisson, Ornitli. sive Syn. Meth. 2, p. 377. 



Uria lorn via Briinnicli^ Ornith. Bor. p. 27 ; Pacific Railroad Report, 



9, p. 913 ; Keys, und Bias. Wirbelthiere Europas, p. 238. 

 Uria troille Lath. Ind. Ornitli. 2, p. 796 ; Temm. Man. 2, p. 921 ; 



Ritz, Faun. Suec. p. 149 ; Nilsson, Ornitli. Suec. 2, p. 142 ; 



Bewick, British Birds, ed. 1832, 2, p. 182 ; Selby, British Ornith. 



2, p. 420 ; Yarrell, British Birds, 3, p. 343 ; Reinhardt, Natur. 



Bidrag, p. 18, No. 87; De Kay, State Report of New York 



Zoology, 1 p. 279. 

 Uria major Ger. 1, p. 549. 

 Cepphus lomvia Pallas, Zoogr. 2, p. 345. 

 Figures Ami., Birds of Am. plate 218, fig. 2, Id. 8vo. ed. 473, No. 2, 



Gould's Birds of Europe, No. 376 ; Naum. Natur. der Yog. 9, 



Deutsch. 331 ; Bufibn, Planch. Enl. 903. 

 Sp. Ch. Upper mandible with the culmen curved almost from the 

 commencement, which is flattened ; the cutting edge slightly descend- 

 ing from the rictus to near the posterior extremity of the nostril, 

 then ascending for about the first third of the culmen, and again 

 gradually curved downwards to the tip ; the variation from a straight 

 line, except in the terminal portion, being very slight ; the lateral 

 outlines narrowly wedge-shaped, with the apex blunt and a slight 

 inflexion anterior to the nasal furrow ; nostrils, in fresh specimens, 

 scarcely visible ; lower mandible with the cutting edges presenting 

 nearly the same outline as those of the upper, but less pronounced ; 

 lateral outlines the same ; keel somewhat concave, about two tliu-ds 

 the length of culmen and twice and a quarter the distance from the 

 angle to where the feathers cross the lower edge of the ramus. 



Plumage of adult male in spring. Whole upper part dark slaty- 

 brown, with the margins of the feathers sometimes lighter on the back, 

 rump, interscapulars, and wing coverts, so that these parts appear 

 obscurely banded ; secondaries narrowly tipped with white, forming 

 a transverse band, broadest next the body, where it is from four to 

 ten millimetres in breadth. Below, with the throat and upper part of 

 neck of a beautiful rich dark-brown, the exact tint of which it is difii- 

 cult to describe, but in which a slight shade of olive and ferruginous 

 can be perceived ; this color is more or less washed over the head, 

 sides, and posterior portion of the neck, seldom, however, extending 

 to the vertex ; rest of lower parts, including a triangular indentation 

 in the dark color of the fore-neck, snowy white ; flanks with the 

 margins of the feathers streaked longitudinally with slaty-brown, 

 most conspicuously next the back ; under wing coverts white, a few 

 longitudinal streaks of dusky on some of the smaller coverts, and the 

 larger almost entirely of a lighter shade of the same color ; bill black, 

 inside of bill and fauces bright yellow ; iris brown ; tarsi and feet 

 brownish black, with the anterior and inner surface of tarsus and 



