272 NORTH AMERICAN BIRDS. 



B. Ni) wliiti' (in wiiii: or tail; Idwit purls dccii liliic. 



C. stelleri. Culdi' ik-cp blue, less intuiiso lliaii on winps nnd tnil, I'x- 

 ccpt ilorsal icLrioi., wliioli nmy bo deep liliic, n.sliv-lirowii, or suol.y- 

 bliu^k. Head ami neck dark j,'niyit:h-bro\vn, diisky-liluo, or di'cp 

 black, till' ibroat more g'l-ayisb. 



((. \o wbito patch over Uio cvf ; lliroat and cliin not alirnplly 



li,L;lili'r than adjuLrnt parls; si idary fovcrls not burred with 



bhick. 



Whoki hoad, nook, jiifrnhnn, and dorsal region plain snoty- 

 blauk ; no blue strcak.s on forfliead, or idso thusc only faintly 

 indicated. TIk! bliii! every whore of a nniforni dull <;reeMi.sh- 

 indij,'o .ihado. Depth of bill, A'> ; crest, 2.()t); wing, (i.OO ; 

 tail, fi.OO; I'ldnien, l.-lo; tarsns, 1.7."); niidille toe, 1.00. I/uh. 

 Northwest coast, from Sitka to the Columbia . var. stelleri. 



Whole head, neck, jugnlinn, and dorsal region plumboons- 

 uniber ; the forehead couspicnoiisly streaked willi blue, and 

 tlio crest washed with the same. The bhio of two very 

 different shade.i, tho wings and tail being deep indigo, the 

 body and tail-coverts greeniuli cobalt-blue. Depth of bill, 

 .35; crest, 2.S0; wing, (i.OO; tail, G.OO ; culnien, 1.2.'); tarsus, 

 l.oa ; middle toe, .90. Hub. Sierra Nevada, from Fort Crook 



to Fort Tejon var. /;■ on talis. 



b. A patch of silky white over the eye; throat and chin abruptly 

 lighter than the? adjoining parts; secondary coverts barred dis- 

 tinctly with black. 



Whole crest, cheeks, an<l foreneck deep black ; the crest 

 scarcely tinged with liluo ; dorsal region light ashy-|)hnnbeons ; 

 forehead conspicuously streaked with milk-white. The blue 

 contrasted as in yiii: //■oiitidi.i. Depth of bill, .35 ; crest, 3.00; 

 wing, (i.lO; tail, 0.10; culmen, 1.25; t.arsus, l.Go ; middle toe, 

 .90. Hab. Rocky Mountains of United States var. tii nc rolopha. 



Whole cresi, cheeks, and foreneck deep black, the (ircst 

 strongly tinged with blue; dorsal region greenish phnnbeous- 

 bhie. The blue nearly uniform ; forehead conspicuously 

 streaked with Ijlnish-white. Depth ofbill, .35; cri'st, 2.S0; 

 wing, 5.90; tail, 5.90 ; culmen, 1.30; tarsus, 1.00; middle loo, 

 .90. Hub. Highlands of Jfexico . . . \m: dia il e m a t a } 



Whole crest, cheeks, and foreneck <lee]) blue, lores black; 

 dorsal region deep pin'plisli-blue ; forehead conspicuously 

 • streaked witli light blue. The blue of a uniform shade — 

 deep pnrplish-indigo — throughout. Depth of bill, .40; length 

 of crest, 2..50; wing, .5.80; tail, .5.80; culmen, 1..30; tarsus, 

 l.CO; middle toe, .95. Hub. Southeastern Mexico (.Xalapa, 

 xfelize, etc.) ....... var. coronota.'- 



Tlie different viirieties just indicated under Ch/mivra stcUn-i, namely, stel- 

 leri, frontalis, macrohipha, diadanata, and coronata, all appear to represent 



1 Oiiiivnra diinhmatn (Ronap,), r,,fninrinrrn!u.i dwdcmfitvs, Ronap. f-niis)). p. ."i??. Cunnn- 

 citta dim/., ScLAl Ki:, Cafal. Am. li. 18(i2, 143. The O. gtdaila, Cau., from Bogota, wu have uot 



seen. 



2 



Cyannra cormuda, Swains. Phil. M.ig. I, 1827, 437. 



