364 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Bull. U. S. Nat. Mus., no. 4, 1876, 24 (Cienguilla, alpine reg. Oaxaca).— 

 (?) DuGES, La Naturaleza, i, 1869, 139 ("Tierras calientes"). — Salvin and 

 GoDMAN, Biol. Gentr.-Am., Aves, i, 1887, 491 (table-land; alpine reg. Vera 

 Cruz; La Parada, Cienguilla, and Juquilla, Oaxaca; Volcan de Fuego, Bar- 

 ranco de los Chocoyos, Totonicapam, San Raymundo, Santa Barbara, and 

 Chilasco, Guatemala; between Seguatepeque and Taulevi, Honduras). 



[Cyanocitta] coronaia Sclater and Salvin, Nom. Av. Neotr., 1873, 39 (Mexico; 

 Guatemala). 



Cyanura coronata \ar. enronata Ridgway, Am. Journ. Sci., 3d ser., v, Jan., 1873, 

 42. 



\_Cyanura steUeri] var. coronata Baird, Brewer, and Ridgway, Hist. N. Am. 

 Birds, ii, 1874, 272 (Jala pa. Vera Cruz; Belize, British Honduras). 



\^Cyanurus stelleri var. macrolophus] e. coronatns Coues, Birds N. W., 1874, 215 

 (synonymy). 



C[yanocitta'] stelleri coronata Ridgway, Man. N. Am. Birds, 1887, 355. 



Cyanocitta stelleri coronata Stone, Proc. Ac. Nat. Sci. Phila., 1891, 445 (Jalapa). 



C[yanocitta'] gahatan Cabanis, Mus. Hein., i, Oct., 1851, 222 (Bogota, Colombia?; 

 coll. Heine Mus.). 



Cyanocitta diademata (not Cyanogarrulus diadematus Bonaparte) Sharpe, Cat. 

 Birds Brit. Mus., iii, 1877, 111, excl. synonymy (Sierra de Oaxaca and La 

 Parada, Oaxaca). 



Genus PERISOREUS Bonaparte. 



Perisoreus Bonaparte, Saggio di una dist. met., 1831, 43. (Type, Lanius 

 infaustus Linnseus.) 



Dysornitkia^ Swainson, Fauna Bor.-Am., ii, 1831, 495. (Type, Corvus cana- 

 densis Linnteus.) 



Plumage very fluffy, especially on the back; head without distinct 

 crest, but with feathers of entire pileum, very long; bill very short 

 (less than half length of head), depressed, the culmen straight to near 

 tip, where slightly decurved; gonys decided!}^ convex; nostrils com- 

 pletely hidden by the antrorse nasal tufts; tarsus decidedly more than 

 one and one-half times as long as exposed culmen, rather slender; 

 middle toe about half as long as tarsus, decidedly shorter than exposed 

 culmen; tail nearly (sometimes quite) as long as wing, graduated for 

 considerably more than length of exposed culmen. 



Coloration. — No bright colors, but uniform gray or dusky hues 

 prevailing;^ adults with forehead, nasal tufts, sides of head, throat, 

 and chest white or whitish; occiput (sometimes nearly whole pileum) 

 grayish, dusky, or blackish; upper parts uniform dusky grayish or 



« Clearly this form, and the supposed locality erroneous. A translation of the 

 original description is as follows: 



"C galeata has the blue coloring still more predominating [than in C. coronata 

 Cabanis=C. s. azteca, the true C. s. coronata being evidently luiknown, as such, to 

 Cabanis]; the topknot is handsome blue, but its border is blackish; on the other 

 hand, the auricular region and the other parts of the head are blue; the back is also 

 more brightly colored and as blue as the lower parts. 



"The native place of the species appears to be doubtful." 



^"Avisinfausta. Th. Si)i; ct opvt^.'^ 



c In the single Palajarctic species the plumage partly rusty 



