CORVIMC — THE CROWS. 
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and grass, sometimes lined with horse-hair. Eggs dark green, with 
blotches of brown. Hab. Pacific Province of United States; Cape 
St. Lucas. {California Jay.) . . . var. calif or nica. 
B. Tail not longer than wings, or considerably shorter. No superciliary stripe, 
and no streaks on throat or jugulum. Auriculars blue like the crown. 
C. ultramarina. Lower parts whitish, conspicuously different from the 
upper. Nest and eggs not yet described. 
Tail nearly , or perfectly even. 
Length, 13.00; tail even ; bill, 1.50; tail, 7.00. Hab. Mexico. 
var. ultr a mar in a . 
Length, 11.50; tail very slightly rounded (graduation, .25 only); 
bill, 1.28 and .35; tail, 50. Above bright blue, dorsal region 
obscured slightly with ashy; beneath dull pale ash, becoming 
gradually whitish posteriorly, the crissum being pure ash. Lores 
blue. Tarsus, 1.45 ; middle toe, .95. Wing-formula, 5, 4 = 6, 7, 
3, 8, 9, 10, 2 ; first, 2.10 shorter than longest. Graduation of tail, 
.25. Hab. Lower Rio Grande. ( Couch's Ultramarine Jay.) var. couchi. 
Tail considerably rounded. 
Colors as in couchi , but dorsal region scarcely obscured by ashy. 
Lores black. Wing, 7.50 ; tail, 7.50 ; bill, 1.30 and .40 ; tarsus, 
1.60 ; middle toe, .90. Wing-formula, 5, 4, 6, 3 = 7, 8, 9, 2 ; first, 
2.75, shorter than longest. Graduation of tail, 1.15. Hah. Mexico 
(Orizaba, Mirador, etc.). {Plain Jay.) . . . var. sordida. 
Graduation of the colors as in sordida , but the blue, instead of 
being a bright ultramarine, is very much paler and duller, and with 
a greenish cast, the whole dorsal region decidedly ashy ; ash of the 
pectoral region much paler, and throat similar, instead of decidedly 
whitish, in contrast ; pure white of posterior lower parts covering 
whole abdomen instead of being confined to crissum. Length, 
13.00; wing, 6.20; tail, 5.70; bill, 1.30 and .40; tarsus, 1.50; 
middle toe, .97. Wing-formula, fourth, fifth, and sixth equal; 
7, 3, 8, 9, 2 ; first, 2.20, shorter than longest. Graduation of 
tail, .50. Hab. Southern Rocky Mountains (Fort Buchanan, and 
Copper Mines, Arizona). {Arizona Jay.) . . . var. arizonce . 
££ Genus XANTHOURA, Bonap. (Page 78.) ™ 
X. incas. Nasal tufts, patch on side of lower jaw and one above eye, 
(both eyelids,) bright blue; remainder of face and throat black. Back, and 
upper surface of wings and tail (the four central feathers), green, the latter 
tinged with blue at end ; the rest of tail-feathers bright yellow. Belly and 
crissum varying from bright yellow to green. Forehead yellowish or whitish. 
a. Nasal tufts short, only covering the nostrils ; whole top of head (ex- 
cept anteriorly) and nape bright blue. Body beneath, and crissum, green. 
Length, 11.00 ; wing, 4.75 ; tail, 5.40 ; tarsus, 1.65. Nesting unknown. 
Hab. Mexico and Southeast Texas. {Green Jay.) . . . var. luxuosa . 
