112 



numerous dusky bars of blackish ; wings deeper blue than the back, 

 all the greater series of coverts very plainly barred with black, as 

 also the inner secondaries, all these latter quills shining cobalt, the 

 primaries externally slightly greenish blue ; head and crest ultrama- 

 rine blue, the forehead silvery cobalt, and the fore part of the crown 

 brighter blue ; nasal bristles, lores, and sides of face black, the cheeks 

 and ear-coverts shaded with blue ; above the eye a distinct spot of 

 white, and a smaller one below the eye ; chin greyish white ; all 

 the rest of the under surface light cobalt-blue, rather more purple 

 on the throat and chest ; thighs purplish ; under wing-coverts ashy 

 black, shaded with blue ; bill and legs black. Total length 11-3 

 inches, culmcn !•!, wing 5-6, tail 5*6, tarsus I'O. (Oaxaea, lUhouch.) 



Some birds, probably females or younger individuals, approach C. 

 coronata in having a blackish or blue-black crest, while the region of 

 the throat and the sides of the face are blackish, but always shaded 

 with blue, which in the adult of the present species extends all over 

 the under surface, excepting on the grey throat. 



Hub. Mexico. 



a. Ad. sk. 

 h, c. Jun. sk. 

 d, e. Ad. sk. 

 f, (J. S ad. sk. 



[Mexico.] 

 [Mexico.] 

 Sierra de Oaxaea. 

 Parada, Oaxaea. 



Purchased. 



A. Boucard, Esq. [CI. 

 A. Boucard, Esq. [C.]. 

 M. EtSbouch [C.]. 



28. APHELOCOMA. 



Type. 



Aphelocoma, Cah. Mus. Hcin. Th. i. p. 221, note A. californica. 



Head of Aphelocoma woodhousii . 

 Range. Southern United States ; Central America. 



Key to the Sjjectes. 



a. Under surface of body whitish or ashy buff, dis- 

 tinctly different from the upper surface. 

 a'. Nasal bristles and forehead blue; scapxdars 

 ashy, like the back ; back much darker than 

 the lower parts*. 



* Much of the information contained in the above ' Eey ' is derived direct 

 from tlie ' North-American Birds ' of Messrs Baird, Brewer, and Eidgway, as 

 the Museum wants .^prcimens of some of the races mentionod by them. Their 

 synopiic tables also r.re so complete as to leave very little to add. 



