VIREO. 



B51 



.75 ; middle toe and claw, .50, claw alone, .16 ; Mnd toe and claw, .42, claw 

 alone, .21. 



Of the two specimens No. 35,23T has the wings perfect, but is 

 apparently immature ; the head has an ochry tinge, not seen in the 

 other, and the eye stripe paler. No. 35,236, which probably best 

 represents the normal state of coloration, lacks the outer primary 

 on both sides, and exhibits other indications of a condition of 

 moulting. Both agree, however, in many peculiarities, sharply 

 separating the new species from any other in the complete series of 

 Vireonidae before me. I have named it after Mr. Julian Carmiol, 

 who has been so indefatigable in developing the ornithology of 

 Costa Rica. 



(35,236.) Type. (3S,237.) Type. Iris brown. 



Tireo buttoni. 



Vireo huttoni, Cassin, Pr. A. N. Sc. Phila. 1851, 150 (Monterey, Cal.).— 

 Ib. 1852, pi. i, fig. 1.— Baikd, Birds N. Am. 1858, 339, pi. 78, fig. 

 2.— ScLATEK, P. Z. S. 1858, 302 (Oaxaoa) ; 1862, 19 (La Parada).— 

 Ib. Catal. 1861, 358, no. 256. 



Hab. California and Western Mexico, to Oaxaoa. 



(Wo. 3,725.) First quill rather less than half 2d, which about equals the 

 10th ; 3d a little longer than 7th ; 4th and 5th nearly equal, and longest. Tail 

 slightly rounded, shorter than wings. Bill very small. 



Above olive green ; brightest behind, especially on rump and edging of tail, 

 duller and more ashy towards said on top and sides of head and neck. Wings 

 •with two bands on coverts, and 

 outer edges of innermost secon- 

 daries rather broadly olivaceous- 

 white ; other quills edged externally 

 with oMve green, paler towards 

 outer primary ; internally with 

 whitish. Lateral tail-feather edged 

 externally with yellowish-white. 

 Feathers of rump with much con- 

 cealed yellowish-gray. 



Under parts pale olivaceous-yel- 

 lowish ; purest behind, lightest on throat and abdomen ; the breast more oliva- 

 ceous, the sides still deeper olive green, the breast soiled with a slight buffy 

 tinge. Axillars and crissum yellowish ; the inside of wings whitish. Loral 



Virto JizUtoni, Cassin. (California.) 



