172 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Lanivireo solitaria . . . var. plumbea Eidgway, Bull. Essex Inst., v, Nov., 1873, 

 181 (Colorado). 



Lanivireo solitarius var. plumbeus Baied, Beewee, and Eidgway, Hist. N. Am. 

 Birds, i, 1874, 377; iii, 1874, 507 (El Paso Co., Colorado). 



Lanivireo solitaria plumbea Eidgway, Bull. Essex Inst., vii, Jan., 1875, 33 (Par- 

 leys Park, Wasatch Mts., Utah; breeding). 



Lanivireo solitarius plumbeus Eidgway, Proc. U. S. Nat. Mus., iii, Aug. 24, 1880, 

 174, 216; Norn. N. Am. Birds, 1881, no. 1416. 



Vireo solitarius plumbeus Eidgway, Bull. Essex Inst., vii, Jan., 1875, 20 (e. Hum- 

 boldt Mts., Nevada).— CouES, Check List, 2d ed., 1882, no. 179.— American 

 Oenithologists' Union, Check List, 1886, no. 6296.— Scott, Auk, v, 1888, 

 32 ( Santa Catalina Mts. , s. Arizona ; breeding above 10, 000 ft. ) . —Allen, Auk, 

 V, 1888, 32 (crit.).— Meaens, Auk, vii, 1890, 260 (Mogollon Mts., Arizona; 

 habits song, etc.).— (?) Millee, Auk, xi, 1894, 79 (Madison Co., New York, 

 1 spec, Sept. 24, 1893).— Mitchell, Auk, xv, 1898, 310 (San Miguel Co., New 

 Mexico; breedingupto 9,000 ft.).— Chapman, Bull. Am. Mus. N.H.,x, 1898, 

 40 (Las Vegas, Vera Cruz, 8,000 ft., breeding).- Caey, Auk, xviii, 1901, 237 

 (Black Hills, Wyoming). — Obeeholsee, Auk, xix, 1902, 301 (Mountains west 

 of Pecos E., w. Texas). — Geinnell, Pacific Coast Avifauna, no. 3, 1902, 62 

 (Tejon Mts., California, Aug.). 



[Vireo solitarius.'] Subsp. /3. Vireo plumbeus Gadow, Cat Birds Brit. Mus., viii, 

 1883, 299. 



V^ireo] slolitarius'] plumbeus Coues, Key N. Am. Birds, 2d ed., 1884, 334. — Bailey 



(Florence M.), Handb. Birds W. U. S., 1902, 397. 

 Vlireo] solitarius plumbeus Eidgway, Man. N. Am. Birds, 1887, 474. 



LANIVIREO SOLITARIUS CASSINII (Xantus). 

 CASSIN'S VIREO, 



Similar to L. s. solitarius, but slightly smaller and much duller in 

 color. 



Adult male. — Pileuni, hindneck, sides of neck, auricular region, 

 suborbital region, and malar region brownish gray (mouse gray, or 

 between this and slate-gray); back and scapulars graj'ish olive-green, 

 usually more or less mixed or washed with gray, passing into more 

 decided and uniform olive-green on rump and upper tail-coverts; wings 

 and tail blackish slate with light olive-green edgings, these more yel- 

 lowish on rectrices, of which the outermost has the outer web white; 

 middle and greater wing-coverts tipped with pale olive-yellow or yel- 

 lowish white, producing two distinct bands (much narrower and less 

 continuous than in Z. s. solitarius) ; tertials broadly edged with pale 

 olive-yellowish or dull yellowish white; broad supraloral stripe and 

 orbital ring white, the latter interrupted at anterior angle of eye by a 

 dusky loral streak; under parts white, passing on sides and flanks into 

 pale sulphur or primrose yellow and pale olive, in broad, ill-defined 

 stripes; under tail-coverts pale primrose yellow or yellowish white; 

 inner webs of remiges and rectrices broadly edged with white, this in 

 fresh plumage extending round tips of the latter; maxilla grayish 

 black; mandible grayish (pale bluish gray in life) with blackish tip; 

 iris brown; legs and feet dusky (grayish blue in life); length (skins), 



