308 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



XlanthociUa} luxuosa Cabanis, Mus. Hein., i, 1851, 224 (Mexico). 

 Xcmtlioura luxuosa luxuosa Ridgway, Auk, xvii, Jan., 1900, 28 (crit.). 

 Ci/anocorax ]}eruvianus (not Corvus peruvianus Gmelin) Cassix, Proc. Ac. Nat. Sci. 



Phila., iv, 1848, 89 '(mountains of Vera Cruz). 

 ('onus peruvianus (not of Gmelin) Lichtenstein, Preif<-Verz. ^Nlex. Vog., 1831, 1 



(Mexico). 

 C'lyanocorax'] cyanocapillus Cabanis, in Tschudi's Fauna Peruana, Aves, 1849, 233, 



footnote (Jalapa, Vera Cruz; coll. Berlin Mus.). 



XANTHOURA LUXUOSA GLAUCESCENS Ridgway. 

 KIO GRANDE GREEN JAY. 



Similar to X. /. Iv.ruosa, but smaller (the bill especially) and colora- 

 tion paler and duller; back, etc., chromium green or sage green, usu- 

 ally more or less glossed (often extensively) with pale blue; white of 

 forehead usually more restricted, sometimes obsolete; prevailing color 

 of under parts very pale glaucous-green, often glossed with pale blue; 

 yellow of lateral rectrices, etc. , rather paler. 



Yomig. — Pileum, hindneck, and malar patch greenish blue, the fore- 

 head and palpebral spots similar but paler, and the nasal tufts darker; 

 black of chin, throat, chest, etc., much duller than in adults; under 

 parts of body \erj^ jDale yellowish green or greenish ^^ellow anteriorly, 

 fading on flanks, abdomen, under tail-cioverts, etc.. into very pale 

 creamy yellow; otherwise, like adults. 



Adalt ma^e.— Length (skins), 256.5-277 (268); wing, 110-117.5 (113); 

 tail, 118-131 (126); exposed culmen, 23-25.5 (25); depth of bill at nos- 

 trils, 9-10 (9.5); tarsus, 35.5-38.5 (37.5); middle toe, 20-23 (21).« 



Adult female.— hangth (skins), 216.5-275.5 (258.5); wing, 101-116.5 

 (112); tail, 122-131.5 (127.5); exposed culmen, 24-25.5 (24.5); depth 

 of bill at nostrils, 10; tarsus, 31-39.5 (37.5); middle toe, 19.5-22.5 (20). « 

 Lower Kio Grande Valley, in southern Texas and northern Tamau- 

 lipas (Matamoras) and Nue\'o Leon (San Diego, Rodriguez), from the 

 coast as far up the \aW&j as Laredo, Texas. 



Cfianocorax luxuosus (not (rdrnili's Ivxuoxiis Lesson) B.ukd, in Stansbury's Rep. 

 Gt. Salt Lake, 1852, 331 (Rio Grande, Texas).— Cassin, lUustr. Birds Cal., 

 Tex., etc., 1854, 1, part, pi. 1? (Texas). & 

 Xanthuura Inxuosa Baird, Rep. Pacific R. R. Surv., ix, 1858, 589 (Rio Grande, 

 Texas; Matamoras, Tamaulipaa; San Diego, Nuevo Leon); Rep. U. S. and 

 Mex, Bound. Surv., ii, pt. ii, 1859, 21 (do.); Cat. N. Am. Birds, 1859, no. 

 442.— Dresser, Ibis, 1865, 495 (lower Rio Grande Valley).— Baird, Brewer, 



and RiDGw.vY, Hist. N. Am. Birds, ii, 1874, pi. 42, fig. 1 (Nuevo Leon). 



American Ornithologists' Union, Check List, 1886, no. 483. — Bendire, 

 Life Hist. N. Am. Birds, ii, 1895, 383, pi. 3, figs. 15-17 (eggs).— Nehrling! 

 Our Native Birds, etc., ii, 1896, 326, pi. 32, fig. 5.— Singley, Rep. Geol. Surv. 

 Tex. 1894, 371 (Hidalgo). 

 X[anthoiira] luxuosa Ridgway, Man. N. Am. Birds, 1887, 358, part. 



"Seven specimens. 



''The plate is colored more like true X. liuiiusd, and may have been made from a 

 specimen of that form. 



