430 U. 8. P, E. E, EXP. AND SUETETS — ^ZOOLOGY — GENEEAIj EEPOET. 



history of tlie genus, thougli I have never seen a specimen. It differs from the other in the 

 larger size, generally hoary appearance, and the pure white or rosy rump, never with dusky 

 streaks, as in the female ^nd young of A. linaria. 



LEUCOSTICTE, Swainson. 



Leucosiicte, Swainson, Fauna Bor. Amor. II, 1831, 265. Type Linaria tcphrocotis, Sw. 

 Ch — Bill conical rounded, rather blunt at the tip ; the culmen slightly convex ; the commissure slightly concave ; the nostrils 

 concealed by depressed bristly feathers ; a depressed ridge extending about parallel with the culmen above the middle of the bill. 

 Another more conspicuously angulated one, extending forward from the lower posterior angle of the side of the lower 

 mandible, nearly parallel with the gonys. Tarsus about equal to the middle toe. Inner toe almost the longer, its claw not 

 reaching beyond the base of the middle one. Hind toe rather longer, its claw longer than the digital portion. Wings very 

 long ; first quill longest. Tail forked. 



This genus differs from Aegiothus in the more obtuse a.nd curved hill, the ridge on the lower 

 mandible, the lateral toe not reaching beyond the base of the middle one, and possibly a longer 

 hind toe. The measurements will be found with Aegiothus. 



Several species are indicated as North American ; only one, however, L. tcphrocotis, seems 

 to have been found in the United States. The others belong to the Aleutian Islands, but without 

 specimens I cannot introduce them here.^ 



LEUCOSTICTE TEPHROCOTIS, Sw. 



Gray-crowned Finch. 



Linaria {Leucosiicte) tcphrocotis, Sw. F. Bor. Arp. II, 1831, 955 ; pi. 1. 



Leucosticte tcphrocotis, Sw. Birds, II, 1837. — Bon. Consp. 1850, 536. — Baird, Stansbury's Salt Lake, 1852, 317. 

 Erythrospiza tcphrocotis, Bon. List. 1838. — Ann. Syn. 1839.— Ib. Birds Amer. Ill, 1841, 176 ; pi. 198. 

 Fringilla tcphrocotis, Aun. Orn. Biog. V, 1839, 232 ; pi. 424. t 



Sp. Ch. — Head above and nape bounded below by a line from the commissure a little below the eyes, light ashy ; dusky in 

 the loral region. Crown with a distinct patch of sooty black, reaching nearly to the base of the bill. Lesser wing coverts and 

 axillaries, outer edges of primaries and tail feathers, with ends of the feathers of the posterior half of body all round, pale rose 

 red. Rest of body dark umber brown, tinged with dusky on the chin and throat. Wings and tail feathers blackish . The 

 greater coverts are tipped, and the secondaries edged, with white. Length, 7.10 inches ; wing, 4.30 ; tail, 2.90. 



Hab. — Northern Rocky mountains. Vicinity of Salt Lake City in winter. 



' The following are the diagnoses of the species said to belong to the northwest coast of America : 

 JjEUCosticte griseindcha, Bonap. — Russian America and the Aleutian Islands. 



Linaria griseinucha, Brandt, "Orn. Ross. 1842 " 

 Leucosticte griseinucha, Bonap. Consp. 1850, 537. 



Leucosticte griseogenys, Gould, Pr. Zool. Soo. July, 1843, 104.— Ib. Voyage of Sulphur, I, 1844, 42 ; pi. xxii. 

 Sp. Oh.— " Brown. Forehead and throat blackish. Nasal feathers always whitish. Cheeks and back of the neck gray. 

 Interscapular region and breast chestnut brown, the feathers narrowly bordered with ferruginous. Feathers of sides and abdomen, 

 wing coverts and tail, broadly margined with rose. Bill yellow ; blackish at tip. 



" Female entire olivaceous ferruginous. Quills and tail feathers brown, bordered with pale rosy. Wing coverts and scapulars 

 with a broad ferruginous margin. 



"Similar to L. tcphrocotis, but duller, and beneath more tinged with rosy. Cheeks and neck above distinctly gray. Length, 

 7 . 66 inches. ' ' — Bonaparte. 



Lehcobticte arctous, Bonap. — Kurile Islands and Kamtschatka. Russian America. (Cabanis.) 

 Passer arctous, var. a, Pallas, Zoog. Bosso-As. II, 1811, 21. 



Leucosticte arctoa, Bon. Consp. 1850, 537.— Cab. Mus. Hein. 1851, 154.— Bon. & Schlegel, Men. Loxiens, 1850, 

 tab. xlv. ^ 



Sp. Ch.— "Dusky purplish. Neck above pale yellowish. Forehead and nasal feathers blackish (scarcely tinged with purple). 

 Outer web of the quills and greater wing coverts, the tail feathers, the feathers of the rump and crissum, silvery gray, with a 

 very narrow outer margin of rosaceous, and the shafts black. Bill small, blackish at tip. Length, 6 inches."— Bonaparte. 



