BIRDS OF NORTH AND MIDDLE A.MKKK A. 3] 5 



CISSILOPHA YUCATANICA ( Dubois ). 

 YUCATAN JAY. 



Adults {sexes alike). — Head, neck, and under parts uniform black, 

 the latter passinjif into dusky blue on under tail-co\'erts; upper parts 

 (except pileuni and hindneck), bright cerulean or deep turquoise blue, 

 the tail deeper blue (approaching- cobalt), and the tertials more greenish 

 (glaucous-blue or verditer blue); bill black; legs and feet 3ellow. 



Iinniature. — Similar to adults, but bill 3'ellovv, rectrices (except middle 

 ones) more or less broadly tipped with white, and black of under parts 

 rather duller, with thighs and under tail-coverts more distinctly bluish. 



Adult //?7/7c.— Length (skins), 310.5-326.5 (32(».5); wing, 137-147.5 

 (141); tail, 134.6-150 (142.5); bill from nostril, 21-23 (22.5); depth 

 of bill at nostrils, 12-13 (12.5); tarsus, 40.5-43.5 (42); middle toe, 

 23.5-25.5 (24. 5). « 



Adult female.— l^Q\\gi\\ (skins), 317.5-330 (325); wing, 137-143 

 (139.5); tail, 134.5-148.5 (141.5); bill from nostril, 21.5-23 (22.5); 

 depth of bill at nostrils, 12.5-13 (12.7); tarsus, 39.5-42 (41); middle 

 toe, 24-25.5 (25).'' 



Yucatan (including Meco and Mugeres islands); British Honduras; 

 eastern Guatemala (Peten district); State of Tabasco (P'rontera) south- 

 eastern Mexico. 



\_CyanociUn'\ beacldi (not Pica beecheii Vigors) Bonaparte, Consp. Av., i, 1850, 



378 (excl. syn.)- 

 CorvuN (Pira) beecheii Eydoux and Gervais, ^Nlag. de Zool., 1886, pi. 72; Voy. 



"Favorite," 1839, pi. 20. 

 Cynnocitta cramrostris (not of Bonaparte) Pucheran, Rev. Zool., 1858, 196 (Old 



R., British Honduras). — Moore, Proc. Zool. Soc. Lond., 1859, 57 (near Belize, 



British Honduras). — Salvin, Ibis, 1861, 353 (Guatemala; Belize, British Hon- 

 duras). — Lawrence, Ann. Lye. N. Y., ix, 1869, 201 (Merida, Yucatan). 

 [Cyanocitta] cramiroMris Sclater and Salvin, Xom. Av. Neotr., 1873, 39 (Belize, 



British Honduras; Yucatan). 

 [Cyanurus'] mtfisirostris Gray, Hand-list, ii, 1870, 5, no. 6103. 

 Cyanocitta yucatanica Dubois, Bull. Ac. Roy. Belg., 2"'® ser., xl, no. 12, Dec, 



1875, 13, 16 (Yucatan; coll. Brussels Mus. ). — Salvin and Godman, Biol. 



Centr.-Am., Aves, i, 1887, pi. 35. 

 Xanthnrn yucatanica SuA-RVE, Cat. Birds Brit. Mus., iii, 1877, 133 ("Honduras"; 



Yucatan). 

 Cyanolyca yucatanica Salvix and Godman, Biol. Centr.-Am., Aves, i, 1SS7, 498 



(Meco and Mugeres islands, Yucatan; Old River, British Honduras). 

 Cissolopixt yucatanica Stone, Proc. Ac. Nat. Sci. Phila., 1890, 208 (Shkolak, etc., 



Yucatan); 1891, 444.— Chapman, Bull. Am. Tklus. X. H., viii, 1896. 282 



(Chichen-Itza, Yucatan; habits; crit. ). 

 Cyanocitta germana Sclater and Salvin, Proc. Zool. Soc. Lond., Feb. 15, 1S76, 



270 (Belize, British Honduras; coll. Salvin and Godman). 

 Corvus cimiciphagtis Donde, La Emulacion, iii, no. 16, 1878, 13 (Yucatan). 



ff Six specimens. ^ Four specimens. 



