312 BULLETIN 50, UKITED STATES NATIONAL MUSEUM. 



3'ell()vv at bases; l)lack jugular patch bordered posteriorly by a cou- 

 spicuous curved band of clear lemon or deep canary yellow, contluent 

 in the middle portion with a longitudinal area of the same color occu- 

 pying the median portion of breast and abdomen, both strongly, though 

 not sharply, contrasted with the general light apple green color of the 

 under parts of the body; sides of neck, behind black auricular area, 

 distinctl}' and more or less extensively 3'ellow, this confluent with the 

 above-mentioned post-jugidar collar. 



Adult male.—hQngth (skins), 297-309.5 (301.5); wing, 124-125 

 (124.6); exposed culmen, 26.5-29 (28); depth of bill at nostrils, 10.5-12 

 (11.5); tarsus, 40-41.5 (40-5); middle toe, 21-24 (23). « 



Adult female.— J^^.n^th (skins), 279.5-294.6 (287); wing, 120-124 

 (122); tail, 129.5-138.5 (134); exposed cuhnen, 26-27 (26.5); depth 

 of bill at nostrils, 10.5-11 (10.9); tarsus, 39.8-40.6 (40.4); middle toe, 

 21.5-22.1 (21.8).'' 



State of Jalisco, southwestern Mexico (San Sebastian). 



Xanfhuura luxuo-'«b speciom Nelson, Auk, xvii, July, 1900, 265 (San Sebastian, 

 Jalisco; coll. U. S. Nat. Mus.). 



Genus CISSILOPHA Bonaparte. 



Cissiloplta Bonaparte, Consp. Av., i, IVIay, 1850, 380. (Type, I'iai mn-hlnfti<ma 



Lafresnaye. ) 

 Cissolopha (emendation) Baird, Rep. Pacific K. R. Surv., ix, 1858, 592. 



Rather large Garrulime (wing more than 127), with the head, neck, 

 and at least anterior half of the under parts uniform black, the rest of 

 the plumage blue (in some species with white spots at tips of rectrices 

 in female or young). 



Nidlfication . — (Essentially as in related genera.) 



Range. — Mexico to northern Nicaragua. 



This genus is rather diflicult to characterize, for the reason that, 

 while the style of coloration is remarkably uniform and distinctive, no 

 two of the species agree exactly in structural details. All are ver}^ 

 stout-billed, except C. nielanocyanea, which further difl'ers from the 

 rest in having the feathers of the pileum much developed, especially 

 on the occiput, forming, when erected, a bushy crest, suid also in 

 having the posterior half of the under parts blue. (J. san-hla.'<ia?ia has 

 a slender median crest on the forehead composed of narrow, nearly 

 straight, elongated feathers. C. heecheii and C. yucataniea are with- 

 out any crest. O. san-hla.uan(i has the nostrils wholl}" exposed; in 

 C. yucatanica they are partly exposed, the nasal plumes being very 

 short; while in C. heecheii and C. melanocyanea the nasal plumes are 

 longer, <[uite covering the nostrils. The wing is decidedly more 

 rounded in C. melanocyanea than in the others, the sixth, fifth, fourth, 



"Three specimens. ''Two specimens. 



