BIKDS OF NORTH AND MIDDLE AMEKICA. 317 



C\_ijanociUa] crassiroatris Bonaparte, Consp. Av., i, 1850, 378 ('"ilexico urien- 



tale"). 

 Oyanocorax rjtvffroiii Bonaparte, Compt. Kend., xxxi, 1850, 564 (San Bias, 



Jalisco; coll. Paris Mus.). — Baird, Rep. Pacific R. R. Surv., ix, 1858, 592. 

 \_Cyano<Atta] geoffroyi Bovcato), Catalog. Avium, 1876, 279, no. 8736. 



CISSILOPHA MELANOCYANEA (Hartlaub). 

 HARTLATTB'S JAY, 



Admits {sexes alih'). — Head, neck, chest, and breast uniform black; 

 back, scapulars, rump, and wings uniform verditer blue, varying to 

 cerulean blue; upper tail-coverts and tail deeper and less greenish 

 (cerulean to almost cobalt) blue; abdomen, sides, flanks, and under 

 tail-coverts dull grayish blue; bill black, sometimes (in younger 

 individuals?) parti}- yellow; iris yellow;" legs and feet black or 

 yellow. 



A<Mtmal6.—'L&ngt\\ (skins), 279.6-297 (288); wing, 130-139 (135); 

 tail, 142-153.5 (149.5); exposed culmen, 26.5-28.5 (28); depth of bill 

 through nostrils, 11-12.5 (11.5); tarsus, 38.5-42 (40); middle toe, 24- 

 25.5 (24.5).* 



Adult female. — Length (skin), 320; wing, 133.5; tail, 155; exposed 

 culmen, 25.5; tarsus, 38.5; middle toe, 22.5.'^ 



Highlands of Guatemala (up to 8,000 feet), Salvador, Honduras, 

 and northern Nicaragua (Chontales). 



[I have not seen a young bird in first plumage, but have examined 

 several that are evidently less than a year old. These have the bill 

 mostly yellow, and the black of the head, etc. , less intense. 



Two specimens labeled as from Honduras ai-e quite like Guatemalan 

 examples; but a third,'' also said to be from Honduras, is so different 

 in coloration from all the other specimens examined (eleven in num- 

 ber) that I suspect it maj^ have come from some different district of 

 Honduras from the other specimens mentioned. In this example, the 

 back, rump, and upper tail-coverts are bright cerulean blue, deepen- 

 ing into cobalt on the tail, instead of verditer blue and dull cerulean 

 blue, respectively, as in true C. melanocyanea, while the under parts 

 of the bod}^ are dusky cobalt blue instead of grayish glaucous-blue or 

 dull grayish cerulean blue. It thus appears to agree with a specimen 

 from Chontales, Nicaragua, mentioned by Salvin and Godman (Biol. 

 Centr.-Am., Aves, i, p. 499), which "is darker, as regards the blue 

 colour" than any Guatemalan example examined by those authors; 

 hence it seems not improbable that northern Nicaragua and adjacent 

 parts of Honduras may be the home of a darker race of this species. 



" Heyde and Lux, manuscript; a specimen with bill partly yellow and probably a 

 younger bird, though in fully adult plumage, had the irides "light brown." 

 6 Three specimens. 

 "One specimen. 

 t^No. 42292, coll. Am. Mus. Nat. Hist. (Lawrence collection), Honduras; A. Edwards. 



