362 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



lOyanogarrulus'] coronatus (not Garrulus coronatus Swainson) Bonaparte, Oonsp. 



Av., i, May, 1850, 377 (at least part). 

 ClyanoeiMa] cororaaia Oabanis, Mus. Hein., i, Oct., 1851, 222 (Mexico). 

 Oyanocitta coronata Shaepe, Cat. Birds Brit. Mus., iii, 1877, 111, excl. syn. 



(highlands of Mexico). 

 Oyanocitta diademata (not Oyanogarrulus diademaivs Bonaparte) Sclater, Proc. 



Zool. Soc. Lond., 1860, 252 (Orizaba, Vera Cruz); 1864, 175 (Valley of 



Mexico); Cat. Am. Birds, 1862, 143 (Mexico).— Sal vin and Godman, Biol. 



Centr.-Am., Aves, i, 1887, 490 (Valley of Mexico; Hacienda de San Pedro, 



Puebla; Orizaba «). 

 [Oyanocitta] diademata Sclater and Salvin, Nom. Av. Neotr., 1873, 39. 

 [ft/an«nts] diadematua Gray, Hand-list, ii, 1870, 4, no. 6090. 

 Oyanura coronata var. diademata Eidgway, Am. Joum. Sci., 3d ser., v, Jan., 



1873, 40, 42. 

 [Oyanura stelleri] var. diademata Baird, Brewer, and Ridgway, Hist. N. Am. 



Birds, ii, 1874, 272. 

 Oyanura macrolophus (not of Baird, 1854) Baird, Eep. Pacific E. E. Surv., ix, 



1858, 582, part (City of Mexico). 

 [Cyanurus steUeri yar. macrolophus] d. diadematus CouES, Birds N. W., 1874, 215 



(synonymy). 

 Oyanocitta stelleri diademata' Ferrari-Perez, Proc. U. S. Nat. Mus., ix, 1886, 152 



(Hacienda de San Pedro, Puebla). — Stone, Proc. Ac. Nat. Sci. Phila., 1891, 



445. 

 C[yanocitta] delleri diademata Eidgway, Man. N. Am. Birds, 1887, 354. 

 Oyanodtta stelleri azteca Eidgway, Auk, xvi, July, 1899, 256 (mountains near 



Mirador, Vera Cruz, s. e. Mexico; coll. U. S. Nat. Mus.). 



CYANOCITTA STELLERI CORONATA (Swainson). 

 BLVE-CRESTED JAY. 



Similar to C s. azteca, but much more extensively blue; the whole 

 crest distinctly blue (dull cobalt or dull ultramarine), the neck, back, 

 and scapulars similar, but (especially the dorsal region) slightly duller, 

 the grayish white on chin and throat more distinct (usually forming a 

 distinct patch), and lower eyelid usually with a distinct (often conspicu- 

 ous) white spot. 



Adult male.— Length (skins), 266.5-309.5 (286.5); wing, 134.6-148.5 

 (139); tail, 135.5-146 (139); exposed culmen, 24.5-27.5 (25.5); depth 

 of bill at nostrils, 9-10 (9.5); tarsus, 41^5.5 (42.5); middle toe, 22-25 

 (23).» 



Adult fmiale.— Length, (skins), 264-297 (281.5); wing, 132.5-147.5 

 (140.5); tail, 127.5-137.5 (133); exposed culmen, 23-26.5 (25); depth 

 of bill at nostrils, 8.5-10 (9.5); tarsus, 38-43 (41); middle toe, 20.5-24 

 (22.5).*- 



Highlands (pine region) of Guatemala, southern Mexico, and part 

 of Honduras; north, along eastern side of Mexican plateau through 

 Vera Cruz (Mirador, Orizaba, Jalapa, Las Vigas, etc.), to Hidalgo 



a Not the locality Zacatecas, which is the type locality of true 0. s. diademata. 

 ^Fourteen specimens. 

 « Twelve specimens. 



