BASILEUTERUS, 951 
Basileuterus chrysophrys, Bonar. Consp. 1850, 314.——Scrater, P. Z. S. 
1857, 202 (Xalapa). 
Hab. Mexico and Guatemala. 
(No. 32,468.) Above olive green; crown and cheeks orange brown. Entire 
under 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 two stripes separated on the forehead by black, which is continued, more 
obscurely, along the top of head, so as to separate the yellow stripe from the 
brown vertex. 
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 
thé nape some distance beyond the rufous crown. Bill black; legs yellowish. 
Wings a little shorter than tail. 
Total length, 5.10; wing, 2.28; tail, 2.50; graduation, .382; difference 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. 
Smith-|Collec-| Sex When 
sonian| tor’s | and Locality. Collected Received from Collected by 
No. No. | Age. : 
26,370 36 ob Mexico. 6d USGS HIG KY es Te WM ery Wan coe 
11,758 ws Se Ovizaba. Bod P. L. Sclater. Botteri? 
32,468 | 1,162 | .. uf 5c Prof. Sumichrast. |.  =—«s -&-..- 
30,699 321} .. Coban, Guat. Noy. 1859. | O. Salvin. Salvin & Godman. 
Mytorutyris, Cabanis. (See page 237.) 
Myiothlypis, Cas. Mus. Hein. I, 1850, 17. (Type Trichas nigrocris- 
tatus, Lar.') 
Bill much depressed, very flat, the culmen 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 Todus or Todirostrum, but more 
tapering. Rictal bristles reaching a little beyond the nostrils. Wings a little 
shorter than the tail; the Ist 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 the 6th and 7th; the 4th and 5th longest. The tail is moderately 
graduated, though the feathers are pointed. The legs are stout and strong; 
the outside of the tarsi apparently with the scutelle passing entirely round 
to the posterior edge. Head with a narrow pointed crest. 
This is a strongly marked genus, and easily distinguished from 
Basileuterus by the very flat, straight bill, much broader or less 
! Basileuterus nigricristatus. 
Trichas nigrocristatus, LAFR. Rev. Zool. 1840, 230 (Bogota).—Myiothlypis 
n. Cas. Mus. Hein. I, 1850, 17.—Basileuterus n. Scuater, Catal. 1861, 
* 36.—Basileuterus nigricapillus, Scuater, P. Z. S. 1860, 74. 
