BASILEUTEUUS. 



251 



Ba$ileuferu8 chrysophrys, Bonaf. Couap. 1850, 314.— ScLATEB, P. Z. S. 

 1857, 202 (Xalapa). 

 Hah. Mexico and Guatemala. 



(No. 32,4G8.) Above olive green ; crown and cheeks orange brown. Entire 

 uoder parts, including edge of wings, greenish-yellow, the sides and lining 

 of wings olivaceous. A broad stripe of yellow from the bill over the eye ; 

 the tno stripes separated on the forehead by black, which is continued, more 

 obdcarely, along the top of head, so as to separate the yellow stripe from the 

 browa vtrtex. 



The orange brown of the cheeks extends narrowly above, more broadly 

 below the eye to the bill, involving the lores. The yellow stripe extends on 

 the nape some distance beyond the rufous crown. Bill black ; legs yellowish. 

 Winga a little shorter than tail. 



Total length, 5.10 ; wing, 2.28 ; tail, 2.50 ; graduation, .32 ; dilference be- 

 tween Ist quill and 4th, .32 ; length of bill from forehead, .49, from nostril, 

 .28; along gape, .55 ; tarsus, .80 ; middle toe and claw, .61. ; '' 



i.--,''.! 



Myiothlypis, Cabanis. (See page 23t.) 



Mytothlypis, Cab. Mus. Hein. I, 1850, 17. (Type Trichas nigrocris- 

 talus, Laf.') 



Bill much depressed, very flat, the culnien and commissure almost truly 

 straight, the bill tapering only gradually to near the tip, where it is more 

 rapidly rounded off, so that the lateral outlines are at first slightly concave, 

 and then convex at the tip, somewhat as in Toilus or Todiroslrum, but more 

 tapering. Rictal bristles reaching a little beyond the nostrils. Wings a little 

 shorter than the tail ; the 1st to 4th quills much graduated, so that the 1st 

 is equal only to the shortest secondary ; the 2d to the 9th quill ; the 3d is be- 

 tween tlie 6th and 7th ; the 4th and 5th longest. The tail is moderately 

 graduated, though the feathers are pointed. The legs are stout and strong ; 

 tile outside of the t.arsi apparently with the scutelhe passing entirely round 

 to the posterior edge. Head with a narrow pointed crest. 



This is a strongly marked genus, and easily distinguished from 

 iimileuterm by the very flat, straight bill, much broadc" or less 



' BasileuteruB nigricristatus, ," 



Trichas nigrocr hiatus, JLkvv^. Rev. Zool. 1840, 230 (Bo^ot&). —Myiolhlypia 

 n. Cab. Mus. Hein. 1, 1850, n.—Bnsileultrus n. Sclatkr, Catal. 1861, 

 36. — Basileuterus nitfiicapillus, ScLAXKa, P. Z. S. 1860, 74. 





