388 PROCEEDINGS OF THE ACADEMY OP 



dubon. The identification with the present species, rather than with the 

 borealis of Temminck, which is the true Linaria canescens, Gould, is rendered 

 necessary by the measurements given, especially those of the entire length, 

 and length of tarsus. Moreover, a specimen of exilipes now before us agrees 

 so minutely with Audubon's figure and description, that we have not the 

 slightest hesitation in referring the one to the other. 



In the Edinburgh Philosophical Review, as above, there is given, by Ber- 

 nard R. Ross, Esq., a list of a collection of birds made by himself on Mac- 

 kenzie's River. This is the same collection that was sent to the Smithsonian ; 

 and the JEgiothus canescens there mentioned refers to the very series of birds 

 upon which we have based our A. exilipes. The mistake is, however, very 

 pardonable, as the writer had no specimens of the true canescens for compari- 

 son ; and affords a good example of the caution necessary to be used in identi- 

 fying specimens from descriptions, especially when so brief as is the diagnosis 

 of A. canescens in the General Report. 



^Egiothus canescens, (Gould,) Cab. 

 Linaria canescens, Gould, Birds Eur., 1343, iii. tab. 193. 

 Linota canescens, Bon. Comp. List, 1838. 

 Acanthis canescens, Bon. Consp. Av., 1850, 541. Bp. et Schl. Monogr. Lox., 



1850, 47, tab. 51. 

 JEgiothus canescens, Cab. Mus. Hein., 1851, 161. Baird 7 Gen. Rep. Birds, 1858, 



429. 

 " Linaria Hornemanni , Holb. Kroy. Nat. Tidsk., 1843, iv. 398." 

 Linota Hornemanni, Holb. Faun. Groen., 1846, 30. 



Fringilla borealis, Temm. Man. Orn, 1835, 264, excl. syn. Nee Yieill. ; nee 

 Fring. bor. vel Linaria bor. Aud. qua? uEg. exilipes Coues ; nee Linota bor. 

 Bp. quae Fring. linaria L. 



Diag. A. JEgiotho linano major (long. 5-75 poll.), rostro mediocri, conico ; 

 plumulis densissimis, superioribus partibus fusco alboque striatis, inferioribua 

 uropygioque albidis immaculatis ; cauda elongata, pedibus validissimis, un- 

 guibus protractis et incurvatis. 



Mas nupt. temp, pectore uropygioque roseo indutis. 



Fem. et mas juv. pectore uropygioque albidis, fusco-lineatis. 



Long. 6 00 poll. : cauda, 2-75 ; ala, 3-25 ; rostrum, 0-34 ; tarsus, 65 ; dig. 

 med. 0-30; ung. 028. 



Hub. Groenlandia. Europ. Amer. Sept.? 



Description. (Adult, Greenland. From Holboll himself.) The bill is mode- 

 rate, or rather small for the size of the bird, regularly conic, very stout at the 

 base, where it is as high as long ; only moderately compressed and acute ; 

 the upper mandible is mostly dusky, the lower, dusky only along the gonys, 

 the rest being yellowish. The nasal plumuli are very dense, and reach nearly 

 to the middle of the bill; those between the nostrils are grayish, those on the 

 sides of the bill much darker, of the same color as the brownish black lores 

 and gular spot. The front is brownish black, but the feathers have broad, 

 hoary tips. There is a pretty well defined, light superciliary streak, extending 

 quite to the base of the bill, and including the lateral feathers of the front. 

 The crimson pileum occupies nearly the whole of the crown. The sides of 

 the head, sides and back of the neck and upper parts generally, are streaked 

 with brownish black and white ; the feathers have the centre of the former 

 color, and are edged and tipped with the latter. The white is nearly pure, 

 except on the sides of the head and neck, where it has a slight yellowish 

 tinge. The proportions of the primaries do not differ materially from those 

 of other species. The first, second and third are nearly equal and longest ; 

 the fourth is a little, and the fifth considerably shorter. The quills are brown- 

 ish black, edged with white, very narrowly on the primaries, moje broadly on 

 the secondaries ; the tips of the greater and median coverts are broadly white, 



[Nov. 



